a PWM signal generating circuit based on LM393...


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This is a PWM signal generating circuit based on LM393.

image.png.0d8023e9b344204f198cabc1123b960e.png

When I was running this LM393 circuit, I found that this circuit only consumes about 10 milliwatts of power at a voltage of 5V. Not only that, this circuit can work normally at 3.3V, 12V and 18V.
But later I found that this circuit cannot be used in switching power supplies.

It is missing something: dead time.


So I would like to ask you how to make some changes to this circuit?

LM393 PWM Circuit.jpg

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