From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 1691/CH6/EX6.6/Exmp6_6.sce | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100755 1691/CH6/EX6.6/Exmp6_6.sce (limited to '1691/CH6/EX6.6') diff --git a/1691/CH6/EX6.6/Exmp6_6.sce b/1691/CH6/EX6.6/Exmp6_6.sce new file mode 100755 index 000000000..d2a9206c1 --- /dev/null +++ b/1691/CH6/EX6.6/Exmp6_6.sce @@ -0,0 +1,16 @@ +//Example 6.6 +clc +disp("R_L = 4 k-ohm, (P_ac)_D = 0.85 W") +disp("The current without signal is I_CQ = 31 mA") +disp("The current with signal is I_CQ + B0 = 34 mA") +disp("The increase is due to harmonic content in the signal") +disp("Therefore, B0 = 34 - 31 = 3 mA") +disp("But, B2 = B0 = 3 mA") +disp("Now (P_ac)_D = P_ac * [1+D2^2] ... Assuming only second harmonic") +disp("Therefore, (P_ac)_D = 1/2*B1^2*R_L * [1 + B2^2/B1^2]") +disp("Therefore, (P_ac)_D = 1/2*B1^2*R_L + 1/2*B2^2*R_L") +disp("0.85 = 1/2*B1^2*(4*10^3) + 1/2*(9*10^-6)*(4*10^3)") +disp("Therefore, B1 = 20.396 mA") +d2=300/20.396 +format(7) +disp(d2,"Therefore, D2(in percentage) = |B2|/|B1| * 100 =") -- cgit