100 to 50 V Buck converter

221

03:14:06

It's just a try

published 6 years ago

PrathikP

6 years ago

A Buck converter does not use a zener diode for voltage regulation

FlashNoob98

6 years ago

ok, how to reduce overvolt in transient of the circuit?

FlashNoob98

6 years ago

without zener it goes up to 60 Volts

hurz

6 years ago

The zener is not needed, in case its a powerful buck it will burn tje zener anyway. Reduce the pulse length this will give you the control above the output voltage. The way you drive the transistor (high side) is not what a noob would do. You have seen this somewhere or you are a clever noob 😁! http://everycircuit.com/circuit/4959798140076032

FlashNoob98

6 years ago

so the Duty cicle should rise gradually from 0 to desired percentage to obtain a stable voltage increase? i removed the zener

hurz

6 years ago

in continues mode a buck converter out voltage = input voltage*pulse ratio in your case 100 * 50% = 50V

FlashNoob98

6 years ago

yes but watch the initial time, the voltage rise up to 60 volts (for about 2-3 ms) and then stabilize at 50 V

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