MATLAB user defined function results in finite rise time

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Anirudh Roy
Anirudh Roy 2019-12-1
编辑： Anirudh Roy 2019-12-1
I am writing a behavioural code fo driving some setiches for a DC DC power converter. My code should produce (ideally) quasi squre waves (ie zero rise time) however during simulation its not the case.
Any help would be appreciated (regarding why this is happening and what can be done)Output_Waveforms_Gate_Driver.bmp
function [DIP1,DIP2,DN1,DN2,DOP1,DOP2,DOP3] = GATE_DRIVER(T,Tper) %T-real time, Tper- Period
t=mod(T,Tper);DOP2=0;DOP3=0;
if(t<3e-5) %Ton
DN2=1;
DN1=0;
DOP1=0;
DIP1=1;
DIP2=0;
else %Toff
DIP1=0;
DIP2=0;
DN2=0;
DN1=1;
DOP1=1;
end
Gate_Driver_Test.bmp

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Anirudh Roy
Anirudh Roy 2019-12-1
编辑：Anirudh Roy 2019-12-1
The problem was that the step size was not fixed, fo example T=[1e-5,2e-5,4-5......] so at 2e-5 the utput was 1 but at 4-5 it was zero (for one particaular signal) so MATLAB made a linear interpolation for 3e-5.
The soln is to speicfy the step size keeping this interpolation in mind.

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