cupoftea
Advanced Member level 5
Hi,
We've all heard of the PSFB....what about its cousin, the PSHB?
Simply replace two leg fets with caps (split caps)....leave the big leakage inductance in the primary side, short out the output inductor, and there you go.
Ive seen this supply quite a few times...but no documentation on it.
It gets switched at max duty cycle all the time.......in burst mode when light load.
Whats its problems?....i would imagine reverse recovery like PSFB?
We've all heard of the PSFB....what about its cousin, the PSHB?
Simply replace two leg fets with caps (split caps)....leave the big leakage inductance in the primary side, short out the output inductor, and there you go.
Ive seen this supply quite a few times...but no documentation on it.
It gets switched at max duty cycle all the time.......in burst mode when light load.
Whats its problems?....i would imagine reverse recovery like PSFB?