Wrote first sketch of ideas how to derive the gain response of the CLLC...

Wrote first sketch of ideas how to derive the gain response of the CLLC resonant converter as a function of the switching frequency and a primary side phase shift, see CLLC/TransferFunc/CLLC_TF_Doku.

Converters/CLLC/TransferFunc/CLLC_TF_PFM_plot.m

@@ -24,7 +24,7 @@ L_m = 20 * L_r1;
 R_load = 0.375;                 % Load resistor
 R_equ = (8 * R_load)/(pi^2);    % Equivalent load resistance
 N = 1;                          % Transformer turn ratio prim to sec
-% delta = (1 - 0.45);             % Tastgrad (duty cycle) for trying equation (2),
+% delta = 0.1;                    % Tastgrad (duty cycle) for trying equation (2),
 % % but the output voltage does not match the simulation results in the Plecs model
 
 % Zr = (Lr/Cr);                 % This must be wrong in the paper!
@@ -42,7 +42,8 @@ Z3 = 1i*ws*L_r2 + 1/(1i*ws*C_r2);
 Z4 = R_equ;
 
 H_r = (Z2*Z4)/(Z1*Z2 + Z1*Z3 + Z1*Z4 + Z2*Z3 + Z2*Z4);                    %(1) TF without phase shift
-% H_r = (Z2*Z4)/(Z1*Z2 + Z1*Z3 + Z1*Z4 + Z2*Z3 + Z2*Z4) * sin(delta*pi);      %(2) TF with phase shift, doesn't work :(
+% H_r = (Z2*Z4)/(Z1*Z2 + Z1*Z3 + Z1*Z4 + Z2*Z3 + Z2*Z4) * sin(delta*pi);      %(2) TF with phase shift, doesn't work
+% H_r = (Z2*Z4)/(Z1*Z2 + Z1*Z3 + Z1*Z4 + Z2*Z3 + Z2*Z4) * cos(ws*delta*pi/2);   %(3) TF with phase shift, also wrong                 
 H_abs = abs(H_r);
 % pretty(simplify(H_abs));