Added files for 5V flyback: transformer design spreadsheet, LTspice simulation…

Added files for 5V flyback: transformer design spreadsheet, LTspice simulation file using optocoupler, N vs D optimzation script

Added files for 5V flyback: transformer design spreadsheet, LTspice simulation…
Added files for 5V flyback: transformer design spreadsheet, LTspice simulation file using optocoupler, N vs D optimzation script
a6ea937e · Lalit Patnaik · 27d5e10a · a6ea937e · a6ea937e · a6ea937e
Commit a6ea937e authored Jun 18, 2020 by Lalit Patnaik
3 changed files
--- a/stages/dc_dc_5v/Documentation/flyback_xfr_design.xlsx
+++ b/stages/dc_dc_5v/Documentation/flyback_xfr_design.xlsx
--- a/stages/dc_dc_5v/Simulation/flyback_10W_cl_iso.asc
+++ b/stages/dc_dc_5v/Simulation/flyback_10W_cl_iso.asc
--- a/stages/dc_dc_5v/Simulation/flyback_NvsD.m
+++ b/stages/dc_dc_5v/Simulation/flyback_NvsD.m
+Vin = 48
+Vo  = 5
+Po  = 10
+Io  = Po/Vo
+Ts  = 3e-6
+D   = [0.1:0.05:0.9];
+Vs  = 1
+N   = (Vo+Vs)*(1-D)./(D*Vin);
+Lm  = 675e-6
+Icpkpk = Io./(1-D) + (Vo+Vs)*(1-D)*Ts./(2*N.^2*Lm);
+figure(1); plot(D,N,'b','linewidth',2); grid on; hold on;
+set(gca, 'fontsize', 16);
+ylabel('Ns/Np'); xlabel('D')
+figure(2); plot(D,Icpkpk,'b','linewidth',2); grid on; hold on;
+set(gca, 'fontsize', 16);
+ylabel('I_{C,pk-pk}'); xlabel('D')