I want solve this equation to find Vcp value, and i am expecting Vcp value to be around 80 for the given constants.
options = optimoptions('fsolve');
options.MaxIterations = 1000;
options.MaxFunctionEvaluations = 500;
Po = 1000;
Vin = 90;
Vo = 500;
n = 2;
fsw = 100e3;
Lr = 10e-6;
Cr = 35.29e-9;
Iin = Po/Vin;
Zr = sqrt(Lr/Cr);
fr = 1/(2*pi*sqrt(Lr*Cr));
eqn = @(Vcp) -2*Vcp + ((Vo/(2*n)) +Vcp)* (1+ sqrt(1-(Iin*Zr/((Vo/(2*n))+Vcp))^2))+ (Iin/Cr)*( (0.5/fsw)- (1/wr)*(pi-asin((Iin*Zr)/((Vo/(2*n))+Vcp))) );
x = fsolve(@(Vcp) eqn(Vcp),80, options);
By using this code, without using options it says the iterations have reached maximum limit.
And if include "options" then NO SOLUTION FOUND.
( fsolve stopped because the relative size of the current step is less than the default value of the step size tolerance squared, but the vector of function values is not near zero as measured by the default value of the function tolerance.)
Could anyone suggest what can i chnage in my code to get the correct result. Any help would be deeply appreciated.
Thanks in advance!