Buckconverter is showing wrong output voltage - simscape model

Hi everybody, I've been running this model of a buck converter with simulink simscape. The inductor is in CCM, so the output voltage should be the input voltage times the duty cycle of the pulse. Somehow the output voltage is much higher. Somebody has an idea of what I'm doing wrong and how to fix this?

Respuestas (1)

Fri
Fri el 29 de Mzo. de 2018
I realized, one reason might be the diode forward voltage. But this doesn't solve it yet. With a semiconductor ideal switch instead, I get the right output if i set the diode voltage to nearly zero. So i guess I'm doing something wrong with the mosfet?

1 comentario

same problem here. I tried tweaking the mosfet and diode parameters, but to no avail. Anyone any updates?

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Preguntada:

Fri
el 29 de Mzo. de 2018

Comentada:

el 31 de Mayo de 2020

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