Other Parts Discussed in Thread: UCC28810, UCC28910
Hi all,
I want to give me cct.
Because WEBENCH cannot meat this design.
Vin DC38V to DC156V
Vout 20V
Iout 30mA
Freq. Over 20kHz (all Vin range)
No isolation
No stop at Input voltage increasing.
No big losses by Preload
Not must, but want to use 2.2mH or 2.7mH use.
Actual cct problem is,
Inductor value reduce -> Stop osc. High Vin
Inductor value increase -> Freq. under 20kHz
Please give me cct. using UCC28880.