kappa_am
Full Member level 6
Hi all,
I am designing a buck DC/DC converter, and I would like to do it with minimum number of components. I have been looking for a controller chip that provides 20V firing signal but what I found is many of them use 12v and sometimes 5V. First, my question is why 12V? I think 15V is better voltage to fire a Mosfet and I have been doing this for a long time (except logic level MOSFETs and GaN). my second question is do you familiar with a chip that provides 20V gate signal. 15V is ok, however, the loss will increase.
Thank you for your help.
I am designing a buck DC/DC converter, and I would like to do it with minimum number of components. I have been looking for a controller chip that provides 20V firing signal but what I found is many of them use 12v and sometimes 5V. First, my question is why 12V? I think 15V is better voltage to fire a Mosfet and I have been doing this for a long time (except logic level MOSFETs and GaN). my second question is do you familiar with a chip that provides 20V gate signal. 15V is ok, however, the loss will increase.
Thank you for your help.