68Views4Replies

Author Options:

Why do DC-DC buck-converters not start at 0 volts? Answered

I have been looking into DC-DC converters to build a variable power supply but I've haven't been able to find one which starts at 0 volts. Most of them seem to start at 5-10 volts with the lowest I've seen starting at 0.8 volts. Is there any reason for this?

Thanks,

Comments

The forums are retiring in 2021 and are now closed for new topics and comments.
0
steveastrouk
steveastrouk

4 years ago

Think about it: At zero volts, what energy is available ?

0
Quadrifoglio
Quadrifoglio

Answer 4 years ago

+1 At 0 volts, you have turned it off.