From 351b61ad2bdbed22b0b062d66ee999fbb7d61d25 Mon Sep 17 00:00:00 2001
From: saurabhb17
Date: Fri, 27 Mar 2020 18:07:48 +0530
Subject: Precision Rectifier example added

---
 Examples/Differentiator/Differentiator-cache.lib   |  52 +-
 Examples/Differentiator/Differentiator.cir         |  18 +-
 Examples/Differentiator/Differentiator.cir.out     |  20 +-
 Examples/Differentiator/Differentiator.sch         | 198 +++---
 .../Differentiator_Previous_Values.xml             |   2 +-
 Examples/Differentiator/NPN.lib                    |   4 +
 Examples/Differentiator/PNP.lib                    |   4 +
 Examples/Differentiator/analysis                   |   2 +-
 Examples/Differentiator/lm_741-cache.lib           | 120 ++++
 Examples/Differentiator/lm_741-rescue.lib          |  42 ++
 Examples/Differentiator/lm_741.cir                 |  43 ++
 Examples/Differentiator/lm_741.cir.out             |  46 ++
 Examples/Differentiator/lm_741.pro                 |  45 ++
 Examples/Differentiator/lm_741.sch                 | 697 +++++++++++++++++++++
 Examples/Differentiator/lm_741.sub                 |  40 ++
 Examples/Differentiator/lm_741_Previous_Values.xml |   1 +
 Examples/Differentiator/npn_1.lib                  |  29 +
 Examples/Differentiator/pnp_1.lib                  |  29 +
 Examples/Differentiator/ua741.cir                  |  15 -
 Examples/Differentiator/ua741.cir.out              |  18 -
 Examples/Differentiator/ua741.pro                  |  17 -
 Examples/Differentiator/ua741.sch                  | 229 -------
 Examples/Differentiator/ua741.sub                  |  12 -
 23 files changed, 1288 insertions(+), 395 deletions(-)
 create mode 100644 Examples/Differentiator/NPN.lib
 create mode 100644 Examples/Differentiator/PNP.lib
 create mode 100644 Examples/Differentiator/lm_741-cache.lib
 create mode 100644 Examples/Differentiator/lm_741-rescue.lib
 create mode 100644 Examples/Differentiator/lm_741.cir
 create mode 100644 Examples/Differentiator/lm_741.cir.out
 create mode 100644 Examples/Differentiator/lm_741.pro
 create mode 100644 Examples/Differentiator/lm_741.sch
 create mode 100644 Examples/Differentiator/lm_741.sub
 create mode 100644 Examples/Differentiator/lm_741_Previous_Values.xml
 create mode 100644 Examples/Differentiator/npn_1.lib
 create mode 100644 Examples/Differentiator/pnp_1.lib
 delete mode 100644 Examples/Differentiator/ua741.cir
 delete mode 100644 Examples/Differentiator/ua741.cir.out
 delete mode 100644 Examples/Differentiator/ua741.pro
 delete mode 100644 Examples/Differentiator/ua741.sch
 delete mode 100644 Examples/Differentiator/ua741.sub

(limited to 'Examples/Differentiator')

diff --git a/Examples/Differentiator/Differentiator-cache.lib b/Examples/Differentiator/Differentiator-cache.lib
index 259458aa..7c9dc2aa 100644
--- a/Examples/Differentiator/Differentiator-cache.lib
+++ b/Examples/Differentiator/Differentiator-cache.lib
@@ -1,6 +1,23 @@
 EESchema-LIBRARY Version 2.3
 #encoding utf-8
 #
+# DC
+#
+DEF DC v 0 40 Y Y 1 F N
+F0 "v" -200 100 60 H V C CNN
+F1 "DC" -200 -50 60 H V C CNN
+F2 "R1" -300 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ 1_pin
+$ENDFPLIST
+DRAW
+C 0 0 150 0 1 0 N
+X + 1 0 450 300 D 50 50 1 1 w
+X - 2 0 -450 300 U 50 50 1 1 w
+ENDDRAW
+ENDDEF
+#
 # GND
 #
 DEF GND #PWR 0 0 Y Y 1 F P
@@ -14,21 +31,6 @@ X GND 1 0 0 0 D 50 50 1 1 W N
 ENDDRAW
 ENDDEF
 #
-# UA741
-#
-DEF UA741 X 0 40 Y Y 1 F N
-F0 "X" 150 0 60 H V C CNN
-F1 "UA741" 250 -150 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-P 4 0 1 0 0 150 0 -150 350 0 0 150 N
-X + 1 -200 100 200 R 50 50 1 1 I
-X - 2 -200 -100 200 R 50 50 1 1 I
-X ~ 3 550 0 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
 # eSim_C
 #
 DEF eSim_C C 0 10 N Y 1 F N
@@ -67,6 +69,26 @@ X ~ 2 200 50 50 L 60 60 1 1 P
 ENDDRAW
 ENDDEF
 #
+# lm_741
+#
+DEF lm_741 X 0 40 Y Y 1 F N
+F0 "X" -200 0 60 H V C CNN
+F1 "lm_741" -100 -250 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+P 4 0 1 0 -350 350 350 0 -350 -350 -350 350 N
+X off_null 1 -50 400 200 D 50 38 1 1 I
+X inv 2 -550 150 200 R 50 38 1 1 I
+X non_inv 3 -550 -100 200 R 50 38 1 1 I
+X v_neg 4 -150 -450 200 U 50 38 1 1 I
+X off_null 5 50 350 200 D 50 38 1 1 I
+X out 6 550 0 200 L 50 38 1 1 O
+X v_pos 7 -150 450 200 D 50 38 1 1 I
+X NC 8 150 -300 200 U 50 38 1 1 N
+ENDDRAW
+ENDDEF
+#
 # plot_v1
 #
 DEF plot_v1 U 0 40 Y Y 1 F N
diff --git a/Examples/Differentiator/Differentiator.cir b/Examples/Differentiator/Differentiator.cir
index 60502da0..18e8a483 100644
--- a/Examples/Differentiator/Differentiator.cir
+++ b/Examples/Differentiator/Differentiator.cir
@@ -1,19 +1,21 @@
-* /home/saurabh/Downloads/eSim-1.1.2/Examples/Differentiator/Differentiator.cir
+* /home/saurabh/Desktop/eSim/Examples/Differentiator/Differentiator.cir
 
-* EESchema Netlist Version 1.1 (Spice format) creation date: Fri Mar  8 14:40:54 2019
+* EESchema Netlist Version 1.1 (Spice format) creation date: Fri Mar 27 17:56:03 2020
 
 * To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
 * To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
 
 * Sheet Name: /
-X1  Net-_R2-Pad2_ Net-_C1-Pad2_ out UA741		
-R3  out Net-_C1-Pad2_ 10k		
-R1  Net-_C1-Pad1_ in 100k		
-R2  GND Net-_R2-Pad2_ 1k		
-R4  GND out 1k		
-C1  Net-_C1-Pad1_ Net-_C1-Pad2_ 20n		
 v1  in GND pwl		
 U1  in plot_v1		
 U2  out plot_v1		
+R1  in Net-_C1-Pad2_ 100k		
+C1  Net-_C1-Pad1_ Net-_C1-Pad2_ 10n		
+R2  Net-_R2-Pad1_ GND 1k		
+R3  Net-_C1-Pad1_ out 1k		
+R4  out GND 1k		
+X1  ? Net-_C1-Pad1_ Net-_R2-Pad1_ Net-_X1-Pad4_ ? out Net-_X1-Pad7_ ? lm_741		
+v3  Net-_X1-Pad7_ GND DC		
+v2  GND Net-_X1-Pad4_ DC		
 
 .end
diff --git a/Examples/Differentiator/Differentiator.cir.out b/Examples/Differentiator/Differentiator.cir.out
index 348f6751..fcc73306 100644
--- a/Examples/Differentiator/Differentiator.cir.out
+++ b/Examples/Differentiator/Differentiator.cir.out
@@ -1,16 +1,18 @@
-* /home/saurabh/downloads/esim-1.1.2/examples/differentiator/differentiator.cir
+* /home/saurabh/desktop/esim/examples/differentiator/differentiator.cir
 
-.include ua741.sub
-x1 net-_r2-pad2_ net-_c1-pad2_ out ua741
-r3  out net-_c1-pad2_ 10k
-r1  net-_c1-pad1_ in 100k
-r2  gnd net-_r2-pad2_ 1k
-r4  gnd out 1k
-c1  net-_c1-pad1_ net-_c1-pad2_ 20n
+.include lm_741.sub
 v1  in gnd pwl(0m 0 0.5m 5 25m 5 25.5m -5 50m -5 50.5m 5 75m 5 75.5m -5 100m -5)
 * u1  in plot_v1
 * u2  out plot_v1
-.tran 10e-03 100e-03 0e-00
+r1  in net-_c1-pad2_ 100k
+c1  net-_c1-pad1_ net-_c1-pad2_ 10n
+r2  net-_r2-pad1_ gnd 1k
+r3  net-_c1-pad1_ out 1k
+r4  out gnd 1k
+x1 ? net-_c1-pad1_ net-_r2-pad1_ net-_x1-pad4_ ? out net-_x1-pad7_ ? lm_741
+v3 net-_x1-pad7_ gnd  dc 15
+v2 gnd net-_x1-pad4_  dc 15
+.tran 1e-03 100e-03 0e-00
 
 * Control Statements 
 .control
diff --git a/Examples/Differentiator/Differentiator.sch b/Examples/Differentiator/Differentiator.sch
index 24ff6636..9c2e3f23 100644
--- a/Examples/Differentiator/Differentiator.sch
+++ b/Examples/Differentiator/Differentiator.sch
@@ -51,17 +51,6 @@ Comment3 ""
 Comment4 ""
 $EndDescr
 $Comp
-L UA741 X1
-U 1 1 56B85B7E
-P 6050 2950
-F 0 "X1" H 6200 2950 60  0000 C CNN
-F 1 "UA741" H 6300 2800 60  0000 C CNN
-F 2 "" H 6050 2950 60  0000 C CNN
-F 3 "" H 6050 2950 60  0000 C CNN
-	1    6050 2950
-	1    0    0    1   
-$EndComp
-$Comp
 L pwl v1
 U 1 1 56B85E24
 P 4500 3300
@@ -73,36 +62,36 @@ F 3 "" H 4500 3300 60  0000 C CNN
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR1
+L GND #PWR01
 U 1 1 56B85ECF
-P 4500 3750
-F 0 "#PWR1" H 4500 3500 50  0001 C CNN
-F 1 "GND" H 4500 3600 50  0000 C CNN
-F 2 "" H 4500 3750 50  0000 C CNN
-F 3 "" H 4500 3750 50  0000 C CNN
-	1    4500 3750
+P 4500 3900
+F 0 "#PWR01" H 4500 3650 50  0001 C CNN
+F 1 "GND" H 4500 3750 50  0000 C CNN
+F 2 "" H 4500 3900 50  0000 C CNN
+F 3 "" H 4500 3900 50  0000 C CNN
+	1    4500 3900
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR2
+L GND #PWR02
 U 1 1 56B85EF6
-P 5550 3350
-F 0 "#PWR2" H 5550 3100 50  0001 C CNN
-F 1 "GND" H 5550 3200 50  0000 C CNN
-F 2 "" H 5550 3350 50  0000 C CNN
-F 3 "" H 5550 3350 50  0000 C CNN
-	1    5550 3350
+P 5550 3400
+F 0 "#PWR02" H 5550 3150 50  0001 C CNN
+F 1 "GND" H 5550 3250 50  0000 C CNN
+F 2 "" H 5550 3400 50  0000 C CNN
+F 3 "" H 5550 3400 50  0000 C CNN
+	1    5550 3400
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR3
+L GND #PWR03
 U 1 1 56B85F16
-P 7350 2950
-F 0 "#PWR3" H 7350 2700 50  0001 C CNN
-F 1 "GND" H 7350 2800 50  0000 C CNN
-F 2 "" H 7350 2950 50  0000 C CNN
-F 3 "" H 7350 2950 50  0000 C CNN
-	1    7350 2950
+P 7700 3000
+F 0 "#PWR03" H 7700 2750 50  0001 C CNN
+F 1 "GND" H 7700 2850 50  0000 C CNN
+F 2 "" H 7700 3000 50  0000 C CNN
+F 3 "" H 7700 3000 50  0000 C CNN
+	1    7700 3000
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
@@ -112,22 +101,18 @@ Wire Wire Line
 Wire Wire Line
 	5700 2850 5850 2850
 Wire Wire Line
-	5850 3050 5550 3050
-Wire Wire Line
-	6600 2950 7050 2950
-Wire Wire Line
-	6350 2300 6800 2300
+	5850 3100 5550 3100
 Wire Wire Line
-	6800 2300 6800 2950
-Connection ~ 6800 2950
+	6950 3000 7400 3000
 Wire Wire Line
-	6050 2300 5750 2300
+	6700 2350 7150 2350
 Wire Wire Line
-	5750 2300 5750 2850
+	7150 2350 7150 3000
+Connection ~ 7150 3000
 Connection ~ 5750 2850
 Text GLabel 4550 2700 0    60   Input ~ 0
 in
-Text GLabel 6950 2800 2    60   Input ~ 0
+Text GLabel 7300 2850 2    60   Input ~ 0
 out
 Wire Wire Line
 	4550 2700 4600 2700
@@ -135,10 +120,10 @@ Wire Wire Line
 	4600 2600 4600 2850
 Connection ~ 4600 2850
 Wire Wire Line
-	6950 2800 6900 2800
+	7300 2850 7250 2850
 Wire Wire Line
-	6900 2750 6900 2950
-Connection ~ 6900 2950
+	7250 2800 7250 3000
+Connection ~ 7250 3000
 $Comp
 L plot_v1 U1
 U 1 1 56D46BCE
@@ -153,16 +138,16 @@ $EndComp
 $Comp
 L plot_v1 U2
 U 1 1 56D46C5F
-P 6900 2950
-F 0 "U2" H 6900 3450 60  0000 C CNN
-F 1 "plot_v1" H 7100 3300 60  0000 C CNN
-F 2 "" H 6900 2950 60  0000 C CNN
-F 3 "" H 6900 2950 60  0000 C CNN
-	1    6900 2950
+P 7250 3000
+F 0 "U2" H 7250 3500 60  0000 C CNN
+F 1 "plot_v1" H 7450 3350 60  0000 C CNN
+F 2 "" H 7250 3000 60  0000 C CNN
+F 3 "" H 7250 3000 60  0000 C CNN
+	1    7250 3000
 	1    0    0    -1  
 $EndComp
 Connection ~ 4600 2700
-Connection ~ 6900 2800
+Connection ~ 7250 2850
 $Comp
 L resistor R1
 U 1 1 5E68BD57
@@ -188,34 +173,107 @@ $EndComp
 $Comp
 L resistor R2
 U 1 1 5E68BF22
-P 5500 3150
-F 0 "R2" H 5550 3280 50  0000 C CNN
-F 1 "1k" H 5550 3100 50  0000 C CNN
-F 2 "" H 5550 3130 30  0000 C CNN
-F 3 "" V 5550 3200 30  0000 C CNN
-	1    5500 3150
+P 5500 3200
+F 0 "R2" H 5550 3330 50  0000 C CNN
+F 1 "1k" H 5550 3150 50  0000 C CNN
+F 2 "" H 5550 3180 30  0000 C CNN
+F 3 "" V 5550 3250 30  0000 C CNN
+	1    5500 3200
 	0    1    1    0   
 $EndComp
 $Comp
 L resistor R3
 U 1 1 5E68BFEA
-P 6150 2350
-F 0 "R3" H 6200 2480 50  0000 C CNN
-F 1 "1k" H 6200 2300 50  0000 C CNN
-F 2 "" H 6200 2330 30  0000 C CNN
-F 3 "" V 6200 2400 30  0000 C CNN
-	1    6150 2350
+P 6500 2400
+F 0 "R3" H 6550 2530 50  0000 C CNN
+F 1 "1k" H 6550 2350 50  0000 C CNN
+F 2 "" H 6550 2380 30  0000 C CNN
+F 3 "" V 6550 2450 30  0000 C CNN
+	1    6500 2400
 	1    0    0    -1  
 $EndComp
 $Comp
 L resistor R4
 U 1 1 5E68C095
-P 7150 3000
-F 0 "R4" H 7200 3130 50  0000 C CNN
-F 1 "1k" H 7200 2950 50  0000 C CNN
-F 2 "" H 7200 2980 30  0000 C CNN
-F 3 "" V 7200 3050 30  0000 C CNN
-	1    7150 3000
+P 7500 3050
+F 0 "R4" H 7550 3180 50  0000 C CNN
+F 1 "1k" H 7550 3000 50  0000 C CNN
+F 2 "" H 7550 3030 30  0000 C CNN
+F 3 "" V 7550 3100 30  0000 C CNN
+	1    7500 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L lm_741 X1
+U 1 1 5E7DF220
+P 6400 3000
+F 0 "X1" H 6200 3000 60  0000 C CNN
+F 1 "lm_741" H 6300 2750 60  0000 C CNN
+F 2 "" H 6400 3000 60  0000 C CNN
+F 3 "" H 6400 3000 60  0000 C CNN
+	1    6400 3000
 	1    0    0    -1  
 $EndComp
+$Comp
+L DC v3
+U 1 1 5E7DF2B6
+P 5750 1950
+F 0 "v3" H 5550 2050 60  0000 C CNN
+F 1 "DC" H 5550 1900 60  0000 C CNN
+F 2 "R1" H 5450 1950 60  0000 C CNN
+F 3 "" H 5750 1950 60  0000 C CNN
+	1    5750 1950
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	6200 1950 6250 1950
+Wire Wire Line
+	6250 1950 6250 2550
+$Comp
+L GND #PWR04
+U 1 1 5E7DF3B7
+P 5100 1950
+F 0 "#PWR04" H 5100 1700 50  0001 C CNN
+F 1 "GND" H 5100 1800 50  0000 C CNN
+F 2 "" H 5100 1950 50  0000 C CNN
+F 3 "" H 5100 1950 50  0000 C CNN
+	1    5100 1950
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	5100 1950 5300 1950
+$Comp
+L DC v2
+U 1 1 5E7DF447
+P 5700 4000
+F 0 "v2" H 5500 4100 60  0000 C CNN
+F 1 "DC" H 5500 3950 60  0000 C CNN
+F 2 "R1" H 5400 4000 60  0000 C CNN
+F 3 "" H 5700 4000 60  0000 C CNN
+	1    5700 4000
+	0    -1   -1   0   
+$EndComp
+Wire Wire Line
+	6150 4000 6250 4000
+$Comp
+L GND #PWR05
+U 1 1 5E7DF44E
+P 5050 4000
+F 0 "#PWR05" H 5050 3750 50  0001 C CNN
+F 1 "GND" H 5050 3850 50  0000 C CNN
+F 2 "" H 5050 4000 50  0000 C CNN
+F 3 "" H 5050 4000 50  0000 C CNN
+	1    5050 4000
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	5050 4000 5250 4000
+Wire Wire Line
+	6250 4000 6250 3450
+Wire Wire Line
+	6400 2350 5750 2350
+Wire Wire Line
+	5750 2350 5750 2850
+Wire Wire Line
+	4500 3900 4500 3750
 $EndSCHEMATC
diff --git a/Examples/Differentiator/Differentiator_Previous_Values.xml b/Examples/Differentiator/Differentiator_Previous_Values.xml
index f7484c7d..b4574b3d 100644
--- a/Examples/Differentiator/Differentiator_Previous_Values.xml
+++ b/Examples/Differentiator/Differentiator_Previous_Values.xml
@@ -1 +1 @@
-<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time">0</field1><field2 name="Step Time">10</field2><field3 name="Stop Time">100</field3><field4 name="Start Combo">Sec</field4><field5 name="Step Combo">ms</field5><field6 name="Stop Combo">ms</field6></tran></analysis><source><v1 name="Source type">pwl<field1 name="Enter in pwl format">0m 0 0.5m 5 25m 5 25.5m -5 50m -5 50.5m 5 75m 5 75.5m -5 100m -5</field1></v1></source><model /><devicemodel /><subcircuit><x1><field>/home/saurabh/Downloads/eSim-1.1.2/src/SubcircuitLibrary/ua741</field></x1></subcircuit></KicadtoNgspice>
\ No newline at end of file
+<KicadtoNgspice><source><v1 name="Source type">pwl<field1 name="Enter in pwl format">0m 0 0.5m 5 25m 5 25.5m -5 50m -5 50.5m 5 75m 5 75.5m -5 100m -5</field1></v1><v3 name="Source type">dc<field1 name="Value">15</field1></v3><v2 name="Source type">dc<field1 name="Value">15</field1></v2></source><model /><devicemodel /><subcircuit><x1><field>/home/saurabh/Desktop/eSim-2.0/library/SubcircuitLibrary/lm_741</field></x1></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time">0</field1><field2 name="Step Time">1</field2><field3 name="Stop Time">100</field3><field4 name="Start Combo">Sec</field4><field5 name="Step Combo">ms</field5><field6 name="Stop Combo">ms</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/Examples/Differentiator/NPN.lib b/Examples/Differentiator/NPN.lib
new file mode 100644
index 00000000..6509fe7a
--- /dev/null
+++ b/Examples/Differentiator/NPN.lib
@@ -0,0 +1,4 @@
+.model Q2N2222  NPN( Is=14.34f Xti=3 Eg=1.11 Vaf=74.03 Bf=400 Ne=1.307 
++ Ise=14.34f Ikf=.2847 Xtb=1.5 Br=6.092 Nc=2 Isc=0 Ikr=0 Rc=1 Cjc=7.306p 
++ Mjc=.3416 Vjc=.75 Fc=.5 Cje=22.01p Mje=.377 Vje=.75 Tr=46.91n Tf=411.1p 
++ Itf=.6 Vtf=1.7 Xtf=3 Rb=10) 
diff --git a/Examples/Differentiator/PNP.lib b/Examples/Differentiator/PNP.lib
new file mode 100644
index 00000000..7edda0ea
--- /dev/null
+++ b/Examples/Differentiator/PNP.lib
@@ -0,0 +1,4 @@
+.model Q2N2907A PNP(Is=650.6E-18 Xti=3 Eg=1.11 Vaf=115.7 Bf=231.7 Ne=1.829
++		Ise=54.81f Ikf=1.079 Xtb=1.5 Br=3.563 Nc=2 Isc=0 Ikr=0 Rc=.715
++		Cjc=14.76p Mjc=.5383 Vjc=.75 Fc=.5 Cje=19.82p Mje=.3357 Vje=.75
++		Tr=111.3n Tf=603.7p Itf=.65 Vtf=5 Xtf=1.7 Rb=10)
diff --git a/Examples/Differentiator/analysis b/Examples/Differentiator/analysis
index d5e13546..f496aec4 100644
--- a/Examples/Differentiator/analysis
+++ b/Examples/Differentiator/analysis
@@ -1 +1 @@
-.tran 10e-03 100e-03 0e-00
\ No newline at end of file
+.tran 1e-03 100e-03 0e-00
\ No newline at end of file
diff --git a/Examples/Differentiator/lm_741-cache.lib b/Examples/Differentiator/lm_741-cache.lib
new file mode 100644
index 00000000..32e31aa1
--- /dev/null
+++ b/Examples/Differentiator/lm_741-cache.lib
@@ -0,0 +1,120 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# eSim_C
+#
+DEF eSim_C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "eSim_C" 25 -100 50 H V L CNN
+F2 "" 38 -150 30 H V C CNN
+F3 "" 0 0 60 H V C CNN
+ALIAS capacitor
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 40 40 1 1 P
+X ~ 2 0 -150 110 U 40 40 1 1 P
+ENDDRAW
+ENDDEF
+#
+# eSim_NPN-RESCUE-lm_741
+#
+DEF eSim_NPN-RESCUE-lm_741 Q 0 0 Y N 1 F N
+F0 "Q" -100 50 50 H V R CNN
+F1 "eSim_NPN-RESCUE-lm_741" -50 150 50 H V R CNN
+F2 "" 200 100 29 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X C 1 100 200 100 D 50 50 1 1 C
+X B 2 -200 0 225 R 50 50 1 1 I
+X E 3 100 -200 100 U 50 50 1 1 E
+ENDDRAW
+ENDDEF
+#
+# eSim_PNP-RESCUE-lm_741
+#
+DEF eSim_PNP-RESCUE-lm_741 Q 0 0 Y N 1 F N
+F0 "Q" -100 50 50 H V R CNN
+F1 "eSim_PNP-RESCUE-lm_741" -50 150 50 H V R CNN
+F2 "" 200 100 29 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 90 -70 70 -90 50 -50 90 -70 90 -70 F
+X C 1 100 200 100 D 50 50 1 1 C
+X B 2 -200 0 225 R 50 50 1 1 I
+X E 3 100 -200 100 U 50 50 1 1 E
+ENDDRAW
+ENDDEF
+#
+# eSim_R
+#
+DEF eSim_R R 0 0 N Y 1 F N
+F0 "R" 50 130 50 H V C CNN
+F1 "eSim_R" 50 -50 50 H V C CNN
+F2 "" 50 -20 30 H V C CNN
+F3 "" 50 50 30 V V C CNN
+ALIAS resistor
+$FPLIST
+ R_*
+ Resistor_*
+$ENDFPLIST
+DRAW
+S 150 10 -50 90 0 1 10 N
+X ~ 1 -100 50 50 R 60 60 1 1 P
+X ~ 2 200 50 50 L 60 60 1 1 P
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/Examples/Differentiator/lm_741-rescue.lib b/Examples/Differentiator/lm_741-rescue.lib
new file mode 100644
index 00000000..1ac4cbd4
--- /dev/null
+++ b/Examples/Differentiator/lm_741-rescue.lib
@@ -0,0 +1,42 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# eSim_NPN-RESCUE-lm_741
+#
+DEF eSim_NPN-RESCUE-lm_741 Q 0 0 Y N 1 F N
+F0 "Q" -100 50 50 H V R CNN
+F1 "eSim_NPN-RESCUE-lm_741" -50 150 50 H V R CNN
+F2 "" 200 100 29 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X C 1 100 200 100 D 50 50 1 1 C
+X B 2 -200 0 225 R 50 50 1 1 I
+X E 3 100 -200 100 U 50 50 1 1 E
+ENDDRAW
+ENDDEF
+#
+# eSim_PNP-RESCUE-lm_741
+#
+DEF eSim_PNP-RESCUE-lm_741 Q 0 0 Y N 1 F N
+F0 "Q" -100 50 50 H V R CNN
+F1 "eSim_PNP-RESCUE-lm_741" -50 150 50 H V R CNN
+F2 "" 200 100 29 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 90 -70 70 -90 50 -50 90 -70 90 -70 F
+X C 1 100 200 100 D 50 50 1 1 C
+X B 2 -200 0 225 R 50 50 1 1 I
+X E 3 100 -200 100 U 50 50 1 1 E
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/Examples/Differentiator/lm_741.cir b/Examples/Differentiator/lm_741.cir
new file mode 100644
index 00000000..4a5917ea
--- /dev/null
+++ b/Examples/Differentiator/lm_741.cir
@@ -0,0 +1,43 @@
+* C:\Users\malli\eSim\src\SubcircuitLibrary\lm_741\lm_741.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 05/25/19 19:37:28
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+Q1  Net-_Q1-Pad1_ Net-_Q1-Pad2_ Net-_Q1-Pad3_ eSim_NPN		
+Q2  Net-_Q1-Pad1_ Net-_Q2-Pad2_ Net-_Q2-Pad3_ eSim_NPN		
+Q6  Net-_Q3-Pad2_ Net-_Q13-Pad1_ Net-_Q1-Pad3_ eSim_PNP		
+Q5  Net-_C1-Pad2_ Net-_Q13-Pad1_ Net-_Q2-Pad3_ eSim_PNP		
+Q3  Net-_Q10-Pad3_ Net-_Q3-Pad2_ Net-_Q3-Pad3_ eSim_NPN		
+Q4  Net-_Q1-Pad1_ Net-_Q1-Pad1_ Net-_Q10-Pad3_ eSim_PNP		
+Q9  Net-_Q13-Pad1_ Net-_Q1-Pad1_ Net-_Q10-Pad3_ eSim_PNP		
+Q8  Net-_C1-Pad2_ Net-_Q3-Pad3_ Net-_Q8-Pad3_ eSim_NPN		
+Q7  Net-_Q3-Pad2_ Net-_Q3-Pad3_ Net-_Q7-Pad3_ eSim_NPN		
+R1  Net-_Q7-Pad3_ Net-_Q12-Pad3_ 1k		
+R2  Net-_Q3-Pad3_ Net-_Q12-Pad3_ 50k		
+R3  Net-_Q8-Pad3_ Net-_Q12-Pad3_ 1k		
+Q12  Net-_Q12-Pad1_ Net-_Q12-Pad1_ Net-_Q12-Pad3_ eSim_NPN		
+Q13  Net-_Q13-Pad1_ Net-_Q12-Pad1_ Net-_Q13-Pad3_ eSim_NPN		
+R4  Net-_Q13-Pad3_ Net-_Q12-Pad3_ 5k		
+R11  Net-_Q10-Pad1_ Net-_Q12-Pad1_ 39k		
+Q10  Net-_Q10-Pad1_ Net-_Q10-Pad1_ Net-_Q10-Pad3_ eSim_PNP		
+Q11  Net-_C1-Pad1_ Net-_Q10-Pad1_ Net-_Q10-Pad3_ eSim_PNP		
+Q14  Net-_C1-Pad1_ Net-_Q14-Pad2_ Net-_Q14-Pad3_ eSim_NPN		
+R8  Net-_C1-Pad1_ Net-_Q14-Pad2_ 4.5k		
+R7  Net-_Q14-Pad3_ Net-_Q14-Pad2_ 7.5k		
+C1  Net-_C1-Pad1_ Net-_C1-Pad2_ 30p		
+Q16  Net-_Q14-Pad3_ Net-_C1-Pad2_ Net-_Q15-Pad2_ eSim_NPN		
+Q15  Net-_Q14-Pad3_ Net-_Q15-Pad2_ Net-_Q15-Pad3_ eSim_NPN		
+R5  Net-_Q15-Pad2_ Net-_Q12-Pad3_ 50k		
+R6  Net-_Q15-Pad3_ Net-_Q12-Pad3_ 50		
+Q17  Net-_C1-Pad2_ Net-_Q15-Pad3_ Net-_Q12-Pad3_ eSim_NPN		
+Q18  Net-_Q10-Pad3_ Net-_C1-Pad1_ Net-_Q18-Pad3_ eSim_NPN		
+Q20  Net-_C1-Pad1_ Net-_Q18-Pad3_ Net-_Q20-Pad3_ eSim_NPN		
+R9  Net-_Q18-Pad3_ Net-_Q20-Pad3_ 25		
+R10  Net-_Q20-Pad3_ Net-_Q19-Pad3_ 50		
+Q19  Net-_Q12-Pad3_ Net-_Q14-Pad3_ Net-_Q19-Pad3_ eSim_PNP		
+U1  Net-_Q7-Pad3_ Net-_Q2-Pad2_ Net-_Q1-Pad2_ Net-_Q12-Pad3_ Net-_Q8-Pad3_ Net-_Q20-Pad3_ Net-_Q10-Pad3_ ? PORT		
+
+.end
diff --git a/Examples/Differentiator/lm_741.cir.out b/Examples/Differentiator/lm_741.cir.out
new file mode 100644
index 00000000..a00bd86a
--- /dev/null
+++ b/Examples/Differentiator/lm_741.cir.out
@@ -0,0 +1,46 @@
+* c:\users\malli\esim\src\subcircuitlibrary\lm_741\lm_741.cir
+
+.include npn_1.lib
+.include pnp_1.lib
+q1 net-_q1-pad1_ net-_q1-pad2_ net-_q1-pad3_ npn_1
+q2 net-_q1-pad1_ net-_q2-pad2_ net-_q2-pad3_ npn_1
+q6 net-_q3-pad2_ net-_q13-pad1_ net-_q1-pad3_ pnp_1
+q5 net-_c1-pad2_ net-_q13-pad1_ net-_q2-pad3_ pnp_1
+q3 net-_q10-pad3_ net-_q3-pad2_ net-_q3-pad3_ npn_1
+q4 net-_q1-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q9 net-_q13-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q8 net-_c1-pad2_ net-_q3-pad3_ net-_q8-pad3_ npn_1
+q7 net-_q3-pad2_ net-_q3-pad3_ net-_q7-pad3_ npn_1
+r1  net-_q7-pad3_ net-_q12-pad3_ 1k
+r2  net-_q3-pad3_ net-_q12-pad3_ 50k
+r3  net-_q8-pad3_ net-_q12-pad3_ 1k
+q12 net-_q12-pad1_ net-_q12-pad1_ net-_q12-pad3_ npn_1
+q13 net-_q13-pad1_ net-_q12-pad1_ net-_q13-pad3_ npn_1
+r4  net-_q13-pad3_ net-_q12-pad3_ 5k
+r11  net-_q10-pad1_ net-_q12-pad1_ 39k
+q10 net-_q10-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q11 net-_c1-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q14 net-_c1-pad1_ net-_q14-pad2_ net-_q14-pad3_ npn_1
+r8  net-_c1-pad1_ net-_q14-pad2_ 4.5k
+r7  net-_q14-pad3_ net-_q14-pad2_ 7.5k
+c1  net-_c1-pad1_ net-_c1-pad2_ 30p
+q16 net-_q14-pad3_ net-_c1-pad2_ net-_q15-pad2_ npn_1
+q15 net-_q14-pad3_ net-_q15-pad2_ net-_q15-pad3_ npn_1
+r5  net-_q15-pad2_ net-_q12-pad3_ 50k
+r6  net-_q15-pad3_ net-_q12-pad3_ 50
+q17 net-_c1-pad2_ net-_q15-pad3_ net-_q12-pad3_ npn_1
+q18 net-_q10-pad3_ net-_c1-pad1_ net-_q18-pad3_ npn_1
+q20 net-_c1-pad1_ net-_q18-pad3_ net-_q20-pad3_ npn_1
+r9  net-_q18-pad3_ net-_q20-pad3_ 25
+r10  net-_q20-pad3_ net-_q19-pad3_ 50
+q19 net-_q12-pad3_ net-_q14-pad3_ net-_q19-pad3_ pnp_1
+* u1  net-_q7-pad3_ net-_q2-pad2_ net-_q1-pad2_ net-_q12-pad3_ net-_q8-pad3_ net-_q20-pad3_ net-_q10-pad3_ ? port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/Examples/Differentiator/lm_741.pro b/Examples/Differentiator/lm_741.pro
new file mode 100644
index 00000000..ea47a221
--- /dev/null
+++ b/Examples/Differentiator/lm_741.pro
@@ -0,0 +1,45 @@
+update=Fri Mar 20 14:12:34 2020
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=lm_741-rescue
+LibName2=power
+LibName3=eSim_Analog
+LibName4=eSim_Devices
+LibName5=eSim_Digital
+LibName6=eSim_Hybrid
+LibName7=eSim_Miscellaneous
+LibName8=eSim_Plot
+LibName9=eSim_Power
+LibName10=eSim_User
+LibName11=eSim_Sources
+LibName12=eSim_Subckt
diff --git a/Examples/Differentiator/lm_741.sch b/Examples/Differentiator/lm_741.sch
new file mode 100644
index 00000000..698b434e
--- /dev/null
+++ b/Examples/Differentiator/lm_741.sch
@@ -0,0 +1,697 @@
+EESchema Schematic File Version 2
+LIBS:lm_741-rescue
+LIBS:power
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Plot
+LIBS:eSim_Power
+LIBS:eSim_User
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:lm_741-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L eSim_NPN-RESCUE-lm_741 Q1
+U 1 1 5CE90A7B
+P 2650 2700
+F 0 "Q1" H 2550 2750 50  0000 R CNN
+F 1 "eSim_NPN" H 2600 2850 50  0000 R CNN
+F 2 "" H 2850 2800 29  0000 C CNN
+F 3 "" H 2650 2700 60  0000 C CNN
+	1    2650 2700
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 5CE90A7C
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+F 0 "Q2" H 4200 2750 50  0000 R CNN
+F 1 "eSim_NPN" H 4250 2850 50  0000 R CNN
+F 2 "" H 4500 2800 29  0000 C CNN
+F 3 "" H 4300 2700 60  0000 C CNN
+	1    4300 2700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L eSim_PNP-RESCUE-lm_741 Q6
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+P 3000 3200
+F 0 "Q6" H 2900 3250 50  0000 R CNN
+F 1 "eSim_PNP" H 2950 3350 50  0000 R CNN
+F 2 "" H 3200 3300 29  0000 C CNN
+F 3 "" H 3000 3200 60  0000 C CNN
+	1    3000 3200
+	-1   0    0    1   
+$EndComp
+$Comp
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+U 1 1 5CE90A7E
+P 3950 3200
+F 0 "Q5" H 3850 3250 50  0000 R CNN
+F 1 "eSim_PNP" H 3900 3350 50  0000 R CNN
+F 2 "" H 4150 3300 29  0000 C CNN
+F 3 "" H 3950 3200 60  0000 C CNN
+	1    3950 3200
+	1    0    0    1   
+$EndComp
+$Comp
+L eSim_NPN-RESCUE-lm_741 Q3
+U 1 1 5CE90A7F
+P 3300 4000
+F 0 "Q3" H 3200 4050 50  0000 R CNN
+F 1 "eSim_NPN" H 3250 4150 50  0000 R CNN
+F 2 "" H 3500 4100 29  0000 C CNN
+F 3 "" H 3300 4000 60  0000 C CNN
+	1    3300 4000
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 4050 2100 29  0000 C CNN
+F 3 "" H 3850 2000 60  0000 C CNN
+	1    3850 2000
+	-1   0    0    1   
+$EndComp
+$Comp
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+U 1 1 5CE90A81
+P 5200 2000
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+F 2 "" H 5400 2100 29  0000 C CNN
+F 3 "" H 5200 2000 60  0000 C CNN
+	1    5200 2000
+	1    0    0    1   
+$EndComp
+$Comp
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+F 2 "" H 4150 4700 29  0000 C CNN
+F 3 "" H 3950 4600 60  0000 C CNN
+	1    3950 4600
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 5CE90A83
+P 3000 4600
+F 0 "Q7" H 2900 4650 50  0000 R CNN
+F 1 "eSim_NPN" H 2950 4750 50  0000 R CNN
+F 2 "" H 3200 4700 29  0000 C CNN
+F 3 "" H 3000 4600 60  0000 C CNN
+	1    3000 4600
+	-1   0    0    -1  
+$EndComp
+$Comp
+L eSim_R R1
+U 1 1 5CE90A84
+P 2850 5200
+F 0 "R1" H 2900 5330 50  0000 C CNN
+F 1 "1k" H 2900 5250 50  0000 C CNN
+F 2 "" H 2900 5180 30  0000 C CNN
+F 3 "" V 2900 5250 30  0000 C CNN
+	1    2850 5200
+	0    1    1    0   
+$EndComp
+$Comp
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+U 1 1 5CE90A85
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+F 1 "50k" H 3600 5250 50  0000 C CNN
+F 2 "" H 3600 5180 30  0000 C CNN
+F 3 "" V 3600 5250 30  0000 C CNN
+	1    3550 5200
+	0    1    1    0   
+$EndComp
+$Comp
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+U 1 1 5CE90A86
+P 4000 5200
+F 0 "R3" H 4050 5330 50  0000 C CNN
+F 1 "1k" H 4050 5250 50  0000 C CNN
+F 2 "" H 4050 5180 30  0000 C CNN
+F 3 "" V 4050 5250 30  0000 C CNN
+	1    4000 5200
+	0    1    1    0   
+$EndComp
+$Comp
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+U 1 1 5CE90A87
+P 6300 4700
+F 0 "Q12" H 6200 4750 50  0000 R CNN
+F 1 "eSim_NPN" H 6250 4850 50  0000 R CNN
+F 2 "" H 6500 4800 29  0000 C CNN
+F 3 "" H 6300 4700 60  0000 C CNN
+	1    6300 4700
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 5CE90A88
+P 5400 4700
+F 0 "Q13" H 5300 4750 50  0000 R CNN
+F 1 "eSim_NPN" H 5350 4850 50  0000 R CNN
+F 2 "" H 5600 4800 29  0000 C CNN
+F 3 "" H 5400 4700 60  0000 C CNN
+	1    5400 4700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L eSim_R R4
+U 1 1 5CE90A89
+P 5250 5200
+F 0 "R4" H 5300 5330 50  0000 C CNN
+F 1 "5k" H 5300 5250 50  0000 C CNN
+F 2 "" H 5300 5180 30  0000 C CNN
+F 3 "" V 5300 5250 30  0000 C CNN
+	1    5250 5200
+	0    1    1    0   
+$EndComp
+$Comp
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+U 1 1 5CE90A8A
+P 6350 2750
+F 0 "R11" H 6400 2880 50  0000 C CNN
+F 1 "39k" H 6400 2800 50  0000 C CNN
+F 2 "" H 6400 2730 30  0000 C CNN
+F 3 "" V 6400 2800 30  0000 C CNN
+	1    6350 2750
+	0    1    1    0   
+$EndComp
+$Comp
+L eSim_PNP-RESCUE-lm_741 Q10
+U 1 1 5CE90A8B
+P 6500 1950
+F 0 "Q10" H 6400 2000 50  0000 R CNN
+F 1 "eSim_PNP" H 6450 2100 50  0000 R CNN
+F 2 "" H 6700 2050 29  0000 C CNN
+F 3 "" H 6500 1950 60  0000 C CNN
+	1    6500 1950
+	-1   0    0    1   
+$EndComp
+$Comp
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+U 1 1 5CE90A8C
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+F 2 "" H 7700 2050 29  0000 C CNN
+F 3 "" H 7500 1950 60  0000 C CNN
+	1    7500 1950
+	1    0    0    1   
+$EndComp
+$Comp
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+U 1 1 5CE90A8D
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+F 1 "eSim_NPN" H 7450 3200 50  0000 R CNN
+F 2 "" H 7700 3150 29  0000 C CNN
+F 3 "" H 7500 3050 60  0000 C CNN
+	1    7500 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L eSim_R R8
+U 1 1 5CE90A8E
+P 7300 2600
+F 0 "R8" H 7350 2730 50  0000 C CNN
+F 1 "4.5k" H 7350 2650 50  0000 C CNN
+F 2 "" H 7350 2580 30  0000 C CNN
+F 3 "" V 7350 2650 30  0000 C CNN
+	1    7300 2600
+	-1   0    0    1   
+$EndComp
+$Comp
+L eSim_R R7
+U 1 1 5CE90A8F
+P 7300 3400
+F 0 "R7" H 7350 3530 50  0000 C CNN
+F 1 "7.5k" H 7350 3450 50  0000 C CNN
+F 2 "" H 7350 3380 30  0000 C CNN
+F 3 "" V 7350 3450 30  0000 C CNN
+	1    7300 3400
+	-1   0    0    1   
+$EndComp
+$Comp
+L eSim_C C1
+U 1 1 5CE90A90
+P 6600 3200
+F 0 "C1" H 6625 3300 50  0000 L CNN
+F 1 "30p" H 6625 3100 50  0000 L CNN
+F 2 "" H 6638 3050 30  0000 C CNN
+F 3 "" H 6600 3200 60  0000 C CNN
+	1    6600 3200
+	1    0    0    -1  
+$EndComp
+$Comp
+L eSim_NPN-RESCUE-lm_741 Q16
+U 1 1 5CE90A91
+P 7050 3950
+F 0 "Q16" H 6950 4000 50  0000 R CNN
+F 1 "eSim_NPN" H 7000 4100 50  0000 R CNN
+F 2 "" H 7250 4050 29  0000 C CNN
+F 3 "" H 7050 3950 60  0000 C CNN
+	1    7050 3950
+	1    0    0    -1  
+$EndComp
+$Comp
+L eSim_NPN-RESCUE-lm_741 Q15
+U 1 1 5CE90A92
+P 7500 4300
+F 0 "Q15" H 7400 4350 50  0000 R CNN
+F 1 "eSim_NPN" H 7450 4450 50  0000 R CNN
+F 2 "" H 7700 4400 29  0000 C CNN
+F 3 "" H 7500 4300 60  0000 C CNN
+	1    7500 4300
+	1    0    0    -1  
+$EndComp
+$Comp
+L eSim_R R5
+U 1 1 5CE90A93
+P 7100 5050
+F 0 "R5" H 7150 5180 50  0000 C CNN
+F 1 "50k" H 7150 5100 50  0000 C CNN
+F 2 "" H 7150 5030 30  0000 C CNN
+F 3 "" V 7150 5100 30  0000 C CNN
+	1    7100 5050
+	0    1    1    0   
+$EndComp
+$Comp
+L eSim_R R6
+U 1 1 5CE90A94
+P 7550 5050
+F 0 "R6" H 7600 5180 50  0000 C CNN
+F 1 "50" H 7600 5100 50  0000 C CNN
+F 2 "" H 7600 5030 30  0000 C CNN
+F 3 "" V 7600 5100 30  0000 C CNN
+	1    7550 5050
+	0    1    1    0   
+$EndComp
+$Comp
+L eSim_NPN-RESCUE-lm_741 Q17
+U 1 1 5CE90A95
+P 6800 4700
+F 0 "Q17" H 6700 4750 50  0000 R CNN
+F 1 "eSim_NPN" H 6750 4850 50  0000 R CNN
+F 2 "" H 7000 4800 29  0000 C CNN
+F 3 "" H 6800 4700 60  0000 C CNN
+	1    6800 4700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L eSim_NPN-RESCUE-lm_741 Q18
+U 1 1 5CE90A96
+P 8800 2300
+F 0 "Q18" H 8700 2350 50  0000 R CNN
+F 1 "eSim_NPN" H 8750 2450 50  0000 R CNN
+F 2 "" H 9000 2400 29  0000 C CNN
+F 3 "" H 8800 2300 60  0000 C CNN
+	1    8800 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L eSim_NPN-RESCUE-lm_741 Q20
+U 1 1 5CE90A97
+P 8400 2750
+F 0 "Q20" H 8300 2800 50  0000 R CNN
+F 1 "eSim_NPN" H 8350 2900 50  0000 R CNN
+F 2 "" H 8600 2850 29  0000 C CNN
+F 3 "" H 8400 2750 60  0000 C CNN
+	1    8400 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L eSim_R R9
+U 1 1 5CE90A98
+P 8850 3000
+F 0 "R9" H 8900 3130 50  0000 C CNN
+F 1 "25" H 8900 3050 50  0000 C CNN
+F 2 "" H 8900 2980 30  0000 C CNN
+F 3 "" V 8900 3050 30  0000 C CNN
+	1    8850 3000
+	0    1    1    0   
+$EndComp
+$Comp
+L eSim_R R10
+U 1 1 5CE90A99
+P 8850 3750
+F 0 "R10" H 8900 3880 50  0000 C CNN
+F 1 "50" H 8900 3800 50  0000 C CNN
+F 2 "" H 8900 3730 30  0000 C CNN
+F 3 "" V 8900 3800 30  0000 C CNN
+	1    8850 3750
+	0    1    1    0   
+$EndComp
+$Comp
+L eSim_PNP-RESCUE-lm_741 Q19
+U 1 1 5CE90A9A
+P 8800 4600
+F 0 "Q19" H 8700 4650 50  0000 R CNN
+F 1 "eSim_PNP" H 8750 4750 50  0000 R CNN
+F 2 "" H 9000 4700 29  0000 C CNN
+F 3 "" H 8800 4600 60  0000 C CNN
+	1    8800 4600
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 3 1 5CE90A9B
+P 1900 1200
+F 0 "U1" H 1950 1300 30  0000 C CNN
+F 1 "PORT" H 1900 1200 30  0000 C CNN
+F 2 "" H 1900 1200 60  0000 C CNN
+F 3 "" H 1900 1200 60  0000 C CNN
+	3    1900 1200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 5CE90A9C
+P 4500 1050
+F 0 "U1" H 4550 1150 30  0000 C CNN
+F 1 "PORT" H 4500 1050 30  0000 C CNN
+F 2 "" H 4500 1050 60  0000 C CNN
+F 3 "" H 4500 1050 60  0000 C CNN
+	2    4500 1050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 5CE90A9D
+P 9750 1650
+F 0 "U1" H 9800 1750 30  0000 C CNN
+F 1 "PORT" H 9750 1650 30  0000 C CNN
+F 2 "" H 9750 1650 60  0000 C CNN
+F 3 "" H 9750 1650 60  0000 C CNN
+	7    9750 1650
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 6 1 5CE90A9E
+P 9750 3500
+F 0 "U1" H 9800 3600 30  0000 C CNN
+F 1 "PORT" H 9750 3500 30  0000 C CNN
+F 2 "" H 9750 3500 60  0000 C CNN
+F 3 "" H 9750 3500 60  0000 C CNN
+	6    9750 3500
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 4 1 5CE90A9F
+P 9700 5550
+F 0 "U1" H 9750 5650 30  0000 C CNN
+F 1 "PORT" H 9700 5550 30  0000 C CNN
+F 2 "" H 9700 5550 60  0000 C CNN
+F 3 "" H 9700 5550 60  0000 C CNN
+	4    9700 5550
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	3200 3200 3750 3200
+Wire Wire Line
+	2750 2900 2750 2950
+Wire Wire Line
+	2750 2950 2900 2950
+Wire Wire Line
+	2900 2950 2900 3000
+Wire Wire Line
+	4200 2900 4200 2950
+Wire Wire Line
+	4200 2950 4050 2950
+Wire Wire Line
+	4050 2950 4050 3000
+Wire Wire Line
+	2900 3400 2900 4400
+Wire Wire Line
+	2900 4000 3100 4000
+Wire Wire Line
+	4200 2000 4200 2500
+Wire Wire Line
+	4200 2350 2750 2350
+Wire Wire Line
+	2750 2350 2750 2500
+Wire Wire Line
+	5000 2000 4050 2000
+Connection ~ 4200 2350
+Connection ~ 4200 2000
+Wire Wire Line
+	3750 2200 3750 2350
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+Wire Wire Line
+	3750 1800 3750 1650
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+	3400 1650 7600 1650
+Wire Wire Line
+	3400 1650 3400 3800
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+	5300 1650 5300 1800
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+Wire Wire Line
+	5300 2200 5300 4500
+Wire Wire Line
+	5300 3500 3650 3500
+Wire Wire Line
+	3650 3500 3650 3200
+Connection ~ 3650 3200
+Connection ~ 2900 4000
+Wire Wire Line
+	4050 4400 4050 3400
+Wire Wire Line
+	3400 4200 3400 4600
+Wire Wire Line
+	3200 4600 3750 4600
+Connection ~ 3400 4600
+Wire Wire Line
+	4050 5100 4050 4800
+Wire Wire Line
+	3600 5100 3600 4600
+Connection ~ 3600 4600
+Wire Wire Line
+	2900 5100 2900 4800
+Wire Wire Line
+	2900 5400 2900 5550
+Wire Wire Line
+	2900 5550 9450 5550
+Wire Wire Line
+	4050 5550 4050 5400
+Wire Wire Line
+	3600 5400 3600 5550
+Connection ~ 3600 5550
+Wire Wire Line
+	6100 4700 5600 4700
+Wire Wire Line
+	6400 2950 6400 4500
+Wire Wire Line
+	6400 4250 5900 4250
+Wire Wire Line
+	5900 4250 5900 4700
+Connection ~ 5900 4700
+Wire Wire Line
+	5300 5100 5300 4900
+Wire Wire Line
+	5300 5550 5300 5400
+Connection ~ 4050 5550
+Wire Wire Line
+	6400 5550 6400 4900
+Connection ~ 5300 5550
+Connection ~ 5300 3500
+Wire Wire Line
+	6400 1650 6400 1750
+Connection ~ 5300 1650
+Wire Wire Line
+	6400 2150 6400 2650
+Connection ~ 6400 4250
+Wire Wire Line
+	6700 1950 7300 1950
+Wire Wire Line
+	7000 1950 7000 2250
+Wire Wire Line
+	7000 2250 6400 2250
+Connection ~ 6400 2250
+Wire Wire Line
+	7600 1650 7600 1750
+Connection ~ 6400 1650
+Connection ~ 7000 1950
+Wire Wire Line
+	7600 3250 7600 4100
+Wire Wire Line
+	7600 3450 7400 3450
+Wire Wire Line
+	6900 3450 7100 3450
+Wire Wire Line
+	6900 2650 6900 3450
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+Wire Wire Line
+	7600 2150 7600 2850
+Wire Wire Line
+	7600 2650 7400 2650
+Wire Wire Line
+	7100 2650 6900 2650
+Connection ~ 6900 3050
+Connection ~ 7600 2650
+Wire Wire Line
+	7300 4300 7150 4300
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+	7150 4150 7150 4950
+Connection ~ 7600 3450
+Wire Wire Line
+	7600 3700 7150 3700
+Wire Wire Line
+	7150 3700 7150 3750
+Connection ~ 7600 3700
+Wire Wire Line
+	6600 3050 6600 2450
+Wire Wire Line
+	6600 2450 7600 2450
+Connection ~ 7600 2450
+Wire Wire Line
+	6600 3350 6600 3950
+Wire Wire Line
+	4050 3950 6850 3950
+Wire Wire Line
+	6700 3950 6700 4500
+Connection ~ 6700 3950
+Wire Wire Line
+	6700 4900 6700 5550
+Connection ~ 6400 5550
+Connection ~ 7150 4300
+Wire Wire Line
+	7600 4950 7600 4500
+Wire Wire Line
+	7000 4700 7600 4700
+Connection ~ 7600 4700
+Wire Wire Line
+	7600 5550 7600 5250
+Connection ~ 6700 5550
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+Connection ~ 7150 5550
+Wire Wire Line
+	7600 2300 8600 2300
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+	8300 2300 8300 2550
+Connection ~ 8300 2300
+Connection ~ 7600 2300
+Wire Wire Line
+	8900 2100 8900 1650
+Wire Wire Line
+	7550 1650 9500 1650
+Connection ~ 7550 1650
+Connection ~ 8900 1650
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+	8900 2500 8900 2900
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+Connection ~ 8900 2750
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+	8300 2950 8300 3350
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+	8300 3350 8900 3350
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+	8900 3200 8900 3650
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+	8900 4400 8900 3950
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+	8900 3500 9500 3500
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+	4750 2700 4750 1050
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+F 1 "PORT" H 1850 4850 30  0000 C CNN
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+F 3 "" H 1850 4850 60  0000 C CNN
+	5    1850 4850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 5CE90AA1
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+	1    1850 5100
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	2100 5100 2700 5100
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+	2700 5050 2900 5050
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+	2100 4850 2550 4850
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+	2550 4850 2550 4900
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+$Comp
+L PORT U1
+U 8 1 5CE9368F
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+	8    9600 6050
+	-1   0    0    1   
+$EndComp
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+$EndSCHEMATC
diff --git a/Examples/Differentiator/lm_741.sub b/Examples/Differentiator/lm_741.sub
new file mode 100644
index 00000000..fa8d27b1
--- /dev/null
+++ b/Examples/Differentiator/lm_741.sub
@@ -0,0 +1,40 @@
+* Subcircuit lm_741
+.subckt lm_741 net-_q7-pad3_ net-_q2-pad2_ net-_q1-pad2_ net-_q12-pad3_ net-_q8-pad3_ net-_q20-pad3_ net-_q10-pad3_ ? 
+* c:\users\malli\esim\src\subcircuitlibrary\lm_741\lm_741.cir
+.include npn_1.lib
+.include pnp_1.lib
+q1 net-_q1-pad1_ net-_q1-pad2_ net-_q1-pad3_ npn_1
+q2 net-_q1-pad1_ net-_q2-pad2_ net-_q2-pad3_ npn_1
+q6 net-_q3-pad2_ net-_q13-pad1_ net-_q1-pad3_ pnp_1
+q5 net-_c1-pad2_ net-_q13-pad1_ net-_q2-pad3_ pnp_1
+q3 net-_q10-pad3_ net-_q3-pad2_ net-_q3-pad3_ npn_1
+q4 net-_q1-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q9 net-_q13-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q8 net-_c1-pad2_ net-_q3-pad3_ net-_q8-pad3_ npn_1
+q7 net-_q3-pad2_ net-_q3-pad3_ net-_q7-pad3_ npn_1
+r1  net-_q7-pad3_ net-_q12-pad3_ 1k
+r2  net-_q3-pad3_ net-_q12-pad3_ 50k
+r3  net-_q8-pad3_ net-_q12-pad3_ 1k
+q12 net-_q12-pad1_ net-_q12-pad1_ net-_q12-pad3_ npn_1
+q13 net-_q13-pad1_ net-_q12-pad1_ net-_q13-pad3_ npn_1
+r4  net-_q13-pad3_ net-_q12-pad3_ 5k
+r11  net-_q10-pad1_ net-_q12-pad1_ 39k
+q10 net-_q10-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q11 net-_c1-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q14 net-_c1-pad1_ net-_q14-pad2_ net-_q14-pad3_ npn_1
+r8  net-_c1-pad1_ net-_q14-pad2_ 4.5k
+r7  net-_q14-pad3_ net-_q14-pad2_ 7.5k
+c1  net-_c1-pad1_ net-_c1-pad2_ 30p
+q16 net-_q14-pad3_ net-_c1-pad2_ net-_q15-pad2_ npn_1
+q15 net-_q14-pad3_ net-_q15-pad2_ net-_q15-pad3_ npn_1
+r5  net-_q15-pad2_ net-_q12-pad3_ 50k
+r6  net-_q15-pad3_ net-_q12-pad3_ 50
+q17 net-_c1-pad2_ net-_q15-pad3_ net-_q12-pad3_ npn_1
+q18 net-_q10-pad3_ net-_c1-pad1_ net-_q18-pad3_ npn_1
+q20 net-_c1-pad1_ net-_q18-pad3_ net-_q20-pad3_ npn_1
+r9  net-_q18-pad3_ net-_q20-pad3_ 25
+r10  net-_q20-pad3_ net-_q19-pad3_ 50
+q19 net-_q12-pad3_ net-_q14-pad3_ net-_q19-pad3_ pnp_1
+* Control Statements
+
+.ends lm_741
\ No newline at end of file
diff --git a/Examples/Differentiator/lm_741_Previous_Values.xml b/Examples/Differentiator/lm_741_Previous_Values.xml
new file mode 100644
index 00000000..b61322bb
--- /dev/null
+++ b/Examples/Differentiator/lm_741_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><q1><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q1><q20><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q20><q3><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q3><q2><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q2><q5><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q5><q4><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q4><q7><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q7><q6><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q6><q9><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q9><q8><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q8><q15><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q15><q14><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q14><q17><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q17><q16><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q16><q11><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q11><q10><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q10><q13><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q13><q12><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q12><q19><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q19><q18><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q18></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">Sec</field4><field5 name="Step Combo">Sec</field5><field6 name="Stop Combo">Sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/Examples/Differentiator/npn_1.lib b/Examples/Differentiator/npn_1.lib
new file mode 100644
index 00000000..a1818ed8
--- /dev/null
+++ b/Examples/Differentiator/npn_1.lib
@@ -0,0 +1,29 @@
+.model npn_1 NPN(
++ Vtf=1.7 
++ Cjc=0.5p
++ Nc=2 
++ Tr=46.91n 
++ Ne=1.307 
++ Cje=0.5p
++ Isc=0 
++ Xtb=1.5 
++ Rb=500
++ Rc=1 
++ Tf=411.1p 
++ Xti=3 
++ Ikr=0 
++ Bf=125
++ Fc=.5 
++ Ise=14.34f 
++ Br=6.092 
++ Ikf=.2847 
++ Mje=.377 
++ Mjc=.3416 
++ Vaf=74.03 
++ Vjc=.75 
++ Vje=.75 
++ Xtf=3 
++ Itf=.6 
++ Is=14.34f 
++ Eg=1.11 
+)
\ No newline at end of file
diff --git a/Examples/Differentiator/pnp_1.lib b/Examples/Differentiator/pnp_1.lib
new file mode 100644
index 00000000..a4ee06da
--- /dev/null
+++ b/Examples/Differentiator/pnp_1.lib
@@ -0,0 +1,29 @@
+.model pnp_1 PNP(
++ Vtf=1.7 
++ Cjc=1.5p
++ Nc=2 
++ Tr=46.91n 
++ Ne=1.307 
++ Cje=0.3p
++ Isc=0 
++ Xtb=1.5 
++ Rb=250
++ Rc=1 
++ Tf=411.1p 
++ Xti=3 
++ Ikr=0 
++ Bf=25
++ Fc=.5 
++ Ise=14.34f 
++ Br=6.092 
++ Ikf=.2847 
++ Mje=.377 
++ Mjc=.3416 
++ Vaf=74.03 
++ Vjc=.75 
++ Vje=.75 
++ Xtf=3 
++ Itf=.6 
++ Is=14.34f 
++ Eg=1.11 
+)
\ No newline at end of file
diff --git a/Examples/Differentiator/ua741.cir b/Examples/Differentiator/ua741.cir
deleted file mode 100644
index de797429..00000000
--- a/Examples/Differentiator/ua741.cir
+++ /dev/null
@@ -1,15 +0,0 @@
-* EESchema Netlist Version 1.1 (Spice format) creation date: Monday 17 December 2012 11:16:58 AM IST
-
-* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
-* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
-
-*Sheet Name:/
-U1  6 7 3 PORT		
-Rout1  3 2 75		
-Eout1  2 0 1 0 1		
-Cbw1  1 0 31.85e-9		
-Rbw1  1 4 0.5e6		
-Ein1  4 0 7 6 100e3		
-Rin1  7 6 2e6		
-
-.end
diff --git a/Examples/Differentiator/ua741.cir.out b/Examples/Differentiator/ua741.cir.out
deleted file mode 100644
index 72e68514..00000000
--- a/Examples/Differentiator/ua741.cir.out
+++ /dev/null
@@ -1,18 +0,0 @@
-* eeschema netlist version 1.1 (spice format) creation date: monday 17 december 2012 11:16:58 am ist
-
-* u1  6 7 3 port
-rout1  3 2 75
-eout1  2 0 1 0 1
-cbw1  1 0 31.85e-9
-rbw1  1 4 0.5e6
-ein1  4 0 7 6 100e3
-rin1  7 6 2e6
-.ac lin 0 0Hz 0Hz
-
-* Control Statements 
-.control
-run
-print allv > plot_data_v.txt
-print alli > plot_data_i.txt
-.endc
-.end
diff --git a/Examples/Differentiator/ua741.pro b/Examples/Differentiator/ua741.pro
deleted file mode 100644
index c7b1d67b..00000000
--- a/Examples/Differentiator/ua741.pro
+++ /dev/null
@@ -1,17 +0,0 @@
-update=Wed Mar 18 14:21:29 2020
-last_client=eeschema
-[eeschema]
-version=1
-LibDir=/home/yogesh/FreeEDA/library
-[eeschema/libraries]
-LibName1=power
-LibName2=eSim_Devices
-LibName3=eSim_User
-LibName4=eSim_Subckt
-LibName5=eSim_Sources
-LibName6=eSim_Power
-LibName7=eSim_Plot
-LibName8=eSim_Miscellaneous
-LibName9=eSim_Hybrid
-LibName10=eSim_Digital
-LibName11=eSim_Analog
diff --git a/Examples/Differentiator/ua741.sch b/Examples/Differentiator/ua741.sch
deleted file mode 100644
index b06dcc17..00000000
--- a/Examples/Differentiator/ua741.sch
+++ /dev/null
@@ -1,229 +0,0 @@
-EESchema Schematic File Version 2
-LIBS:power
-LIBS:eSim_Devices
-LIBS:eSim_User
-LIBS:eSim_Subckt
-LIBS:eSim_Sources
-LIBS:eSim_Power
-LIBS:eSim_Plot
-LIBS:eSim_Miscellaneous
-LIBS:eSim_Hybrid
-LIBS:eSim_Digital
-LIBS:eSim_Analog
-EELAYER 25 0
-EELAYER END
-$Descr A4 11693 8268
-encoding utf-8
-Sheet 1 1
-Title ""
-Date "19 dec 2012"
-Rev ""
-Comp ""
-Comment1 ""
-Comment2 ""
-Comment3 ""
-Comment4 ""
-$EndDescr
-Text Notes 3800 2400 0    60   ~ 0
-Op-Amp
-Text Notes 3750 2850 0    60   ~ 0
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-Text Notes 5800 2500 0    60   ~ 0
-out
-Text Notes 2750 3100 0    60   ~ 0
--
-Text Notes 2700 2600 0    60   ~ 0
-+
-$Comp
-L PORT U1
-U 6 1 5082C027
-P 6250 2500
-F 0 "U1" H 6250 2450 30  0000 C CNN
-F 1 "PORT" H 6250 2500 30  0000 C CNN
-F 2 "" H 6250 2500 60  0001 C CNN
-F 3 "" H 6250 2500 60  0001 C CNN
-	6    6250 2500
-	-1   0    0    1   
-$EndComp
-$Comp
-L PORT U1
-U 2 1 5082C011
-P 2300 3100
-F 0 "U1" H 2300 3050 30  0000 C CNN
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-F 2 "" H 2300 3100 60  0001 C CNN
-F 3 "" H 2300 3100 60  0001 C CNN
-	2    2300 3100
-	1    0    0    -1  
-$EndComp
-$Comp
-L PORT U1
-U 3 1 5082C00B
-P 2250 2600
-F 0 "U1" H 2250 2550 30  0000 C CNN
-F 1 "PORT" H 2250 2600 30  0000 C CNN
-F 2 "" H 2250 2600 60  0001 C CNN
-F 3 "" H 2250 2600 60  0001 C CNN
-	3    2250 2600
-	1    0    0    -1  
-$EndComp
-$Comp
-L PWR_FLAG #FLG1
-U 1 1 508152A0
-P 3450 3200
-F 0 "#FLG1" H 3450 3470 30  0001 C CNN
-F 1 "PWR_FLAG" H 3450 3430 30  0000 C CNN
-F 2 "" H 3450 3200 60  0001 C CNN
-F 3 "" H 3450 3200 60  0001 C CNN
-	1    3450 3200
-	1    0    0    -1  
-$EndComp
-$Comp
-L VCVS Eout1
-U 1 1 50813F0F
-P 5200 2900
-F 0 "Eout1" H 5000 3000 50  0000 C CNN
-F 1 "1" H 5000 2850 50  0000 C CNN
-F 2 "" H 5200 2900 60  0001 C CNN
-F 3 "" H 5200 2900 60  0001 C CNN
-	1    5200 2900
-	0    1    1    0   
-$EndComp
-$Comp
-L GND #PWR1
-U 1 1 50813E0D
-P 3700 3400
-F 0 "#PWR1" H 3700 3400 30  0001 C CNN
-F 1 "GND" H 3700 3330 30  0001 C CNN
-F 2 "" H 3700 3400 60  0001 C CNN
-F 3 "" H 3700 3400 60  0001 C CNN
-	1    3700 3400
-	1    0    0    -1  
-$EndComp
-$Comp
-L VCVS Ein1
-U 1 1 50813D7C
-P 3650 2850
-F 0 "Ein1" H 3450 2950 50  0000 C CNN
-F 1 "100e3" H 3450 2800 50  0000 C CNN
-F 2 "" H 3650 2850 60  0001 C CNN
-F 3 "" H 3650 2850 60  0001 C CNN
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-	0    1    1    0   
-$EndComp
-Text Notes 2600 2900 0    60   ~ 0
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-Wire Wire Line
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-Connection ~ 4550 3300
-Wire Wire Line
-	5000 3300 5000 2950
-Connection ~ 3700 3300
-Wire Wire Line
-	4550 3000 4550 3300
-Wire Wire Line
-	3900 2500 3700 2500
-Wire Wire Line
-	3700 2500 3700 2550
-Wire Wire Line
-	3450 2900 3300 2900
-Wire Wire Line
-	3300 2900 3300 3200
-Wire Wire Line
-	3300 3200 2950 3200
-Connection ~ 2950 3100
-Wire Wire Line
-	2950 3200 2950 3100
-Wire Wire Line
-	3000 2600 2500 2600
-Wire Wire Line
-	2550 3100 3000 3100
-Wire Wire Line
-	2950 2600 2950 2500
-Connection ~ 2950 2600
-Wire Wire Line
-	2950 2500 3300 2500
-Wire Wire Line
-	3300 2500 3300 2800
-Wire Wire Line
-	3300 2800 3450 2800
-Wire Wire Line
-	3700 3150 3700 3400
-Wire Wire Line
-	4550 2500 4550 2700
-Wire Wire Line
-	4400 2500 5000 2500
-Wire Wire Line
-	5000 2500 5000 2850
-Connection ~ 4550 2500
-Wire Wire Line
-	5250 2600 5250 2500
-Wire Wire Line
-	5250 2500 5400 2500
-Wire Wire Line
-	5700 2500 6000 2500
-$Comp
-L resistor Rin1
-U 1 1 5E71E232
-P 2950 2900
-F 0 "Rin1" H 3000 3030 50  0000 C CNN
-F 1 "2e6" H 3000 2850 50  0000 C CNN
-F 2 "" H 3000 2880 30  0000 C CNN
-F 3 "" V 3000 2950 30  0000 C CNN
-	1    2950 2900
-	0    1    1    0   
-$EndComp
-Wire Wire Line
-	3000 2600 3000 2800
-$Comp
-L resistor Rbw1
-U 1 1 5E71E326
-P 4050 2100
-F 0 "Rbw1" H 4100 2230 50  0000 C CNN
-F 1 "0.5e6" H 4100 2050 50  0000 C CNN
-F 2 "" H 4100 2080 30  0000 C CNN
-F 3 "" V 4100 2150 30  0000 C CNN
-	1    4050 2100
-	1    0    0    -1  
-$EndComp
-Wire Wire Line
-	3900 2500 3900 2050
-Wire Wire Line
-	3900 2050 3950 2050
-Wire Wire Line
-	4250 2050 4400 2050
-Wire Wire Line
-	4400 2050 4400 2500
-$Comp
-L capacitor Cbw1
-U 1 1 5E71E45C
-P 4550 2850
-F 0 "Cbw1" H 4575 2950 50  0000 L CNN
-F 1 "31.85e-9" H 4575 2750 50  0000 L CNN
-F 2 "" H 4588 2700 30  0000 C CNN
-F 3 "" H 4550 2850 60  0000 C CNN
-	1    4550 2850
-	1    0    0    -1  
-$EndComp
-$Comp
-L resistor Rout1
-U 1 1 5E71E59C
-P 5500 2250
-F 0 "Rout1" H 5550 2380 50  0000 C CNN
-F 1 "75" H 5550 2200 50  0000 C CNN
-F 2 "" H 5550 2230 30  0000 C CNN
-F 3 "" V 5550 2300 30  0000 C CNN
-	1    5500 2250
-	1    0    0    -1  
-$EndComp
-Wire Wire Line
-	5400 2500 5400 2200
-Wire Wire Line
-	5700 2200 5700 2500
-$EndSCHEMATC
diff --git a/Examples/Differentiator/ua741.sub b/Examples/Differentiator/ua741.sub
deleted file mode 100644
index ad26c001..00000000
--- a/Examples/Differentiator/ua741.sub
+++ /dev/null
@@ -1,12 +0,0 @@
-* Subcircuit ua741
-.subckt ua741 6 7 3 
-* eeschema netlist version 1.1 (spice format) creation date: monday 17 december 2012 11:16:58 am ist
-rout1  3 2 75
-eout1  2 0 1 0 1
-cbw1  1 0 31.85e-9
-rbw1  1 4 0.5e6
-ein1  4 0 7 6 100e3
-rin1  7 6 2e6
-* Control Statements
-
-.ends ua741
\ No newline at end of file
-- 
cgit