- Joined Nov 28, 2012
I have been studying buck converters and I have a question about a simple one. At the output of the buck I see people making a voltage divider and sending this voltage back to the drive circuit to control the pwm. How do you determine what to send back to the control ic, or what resistors to use for the divider. Does the control circuit look at whatever feedback is there and just try to maintain whatever it was. Thanks for any help.