How to create a dead time between two signal in Simulink ??

Question

Gökhan Bayraktar 2018-6-25

0
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https://ww2.mathworks.cn/matlabcentral/answers/407359-how-to-create-a-dead-time-between-two-signal-in-simulink

回答： Sabin 2024-1-23

Hi

I have 2 pulse signals which are output of two different PWM Generator(DC-DC) block. I will apply these signals to two mosfet. But i need an dead time gap between them to prevent short circuit.

Without time delay both of the PWM signals are working well as in the picture("current without transport delay").

I tried to use "transport delay" block to create dead time. Although i create the 3e-6 s dead time the current of the circuit became weird as the picture(current with transport delay.png).

I also attached a picture of pulse signals and zoom into the time where the current become weird in the delayed circuit.

I know i attached lots of picture but i think it is the best way to explain my problem. Also for PS, in the solver parameter the refine factor is 500.

Thank you for future helping.