GeniusPooh
Newbie level 4
Why welding or big power supply don't use mosfet or IGBT at first place?
I know now. I can use small transformer if hertz is higher ..
But why they don't use switching chip at just in front of AC input?
I think It save a lot space and electricity.
and If so . Can I make palm size 10kw ac-dc power source?
I know now. I can use small transformer if hertz is higher ..
But why they don't use switching chip at just in front of AC input?
I think It save a lot space and electricity.
and If so . Can I make palm size 10kw ac-dc power source?