blob: 7b8b86c97bd77a56b36a86cf26d87b0abaa31b05 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
// calculating of dc load voltage and ripple
// Electronic Principles
// By Albert Malvino , David Bates
// Seventh Edition
// The McGraw-Hill Companies
// Example 4-9, page 111
clear;clc; close;
// Given data
V1=120;// rms input voltage in volts
Rl=500;// dc load resistance in ohms
f=60;// frequency in hertz
C=4700*10^-6// capacitance in farads
// 15:1 step down transformer
// Calculations
V2=V1/15;// rms secondary voltage in volts
Vp=V2/0.707;// peak secondary voltage
Vl=Vp-1.4;// using second approximation
Il=Vl/Rl;// dc load current in amperes
Vr=Il/(2*f*C);// ripple in vpp,bridge rectifier
disp("Volts",Vl,"dc load voltage =")
disp("Volts",Vr,"riple =")
// Result
// dc load voltage is 9.9 volts
// ripple is 35 mVpp
|
