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

Off the shelf ferrite core for 45Amp, 9uH inductor?

Status
Not open for further replies.
T

treez

Guest
Hello,
Here in MaryLand we have to make a 9uH inductor which will be used in a 650W, 200KHz, CCM boost converter.
The inductor current is triangle between 47 Amps and 42Amps, with around 45 Amps RMS current.

We only have the PQ40/40 ferrite core set so far, but is there any smaller type of ferrite formers which are used for inductors specifically? The PQ4040 former is a bit too big and spacious for us.

PQ40/40 ferrite core datasheet:
**broken link removed**
 

What material are you using? Have you done any actual calculations of power loss/temperature rise? That has to be the starting point.

For a 650W supply, such an inductor size is not really big at all, even at 200kHz. If power density is a priority you may consider integrated magnetics.
 
  • Like
Reactions: treez

    T

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top