Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Flyback core losses are less than woudl think

Status
Not open for further replies.
C

cupoftea

Advanced Member level 5
Joined
Jun 13, 2021
Messages
2,642
Helped
54
Reputation
108
Reaction score
116
Trophy points
63
Activity points
13,874
Hi,
Supposing an Offline Flyback has a Bpk of 300mT.....then the peak B for the core loss charts is half that, ie 0.15T.
But due to remnance, would you agree that its actually some 20% less than that?

(..the remnance residual magnetic flux "loitering" there , unlike in a Bridge type SMPS, where the flux is bipolar.)
 

Sort by date Sort by votes
you have not stated what you think the remanance is for the material you have in mind.

For 300mT peak the ac flux is 150mT peak - but there will be some extra ( anomalous ) losses due to running close to saturation ...
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top