cupoftea
Advanced Member level 6
Hi,
No reasonably priced Offline Full Bridge controllers have overload shutdown (ie shutting down after say 300ms of operation with vout <demand)
Eg UC2825 etc don’t have it. You can add it, but its extra components. Its less components to do the following and use a simple cheap current mode controller eg NCP12XX.
Do any chips do this D type etc job, so that we don’t have to put the analog switch, D Type etc , in.?
As you can see, the schem is bog standard full bridge + CD
No reasonably priced Offline Full Bridge controllers have overload shutdown (ie shutting down after say 300ms of operation with vout <demand)
Eg UC2825 etc don’t have it. You can add it, but its extra components. Its less components to do the following and use a simple cheap current mode controller eg NCP12XX.
Do any chips do this D type etc job, so that we don’t have to put the analog switch, D Type etc , in.?
As you can see, the schem is bog standard full bridge + CD