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.

Interleaved Boost PFC datasheet (UCC28070)

Status
Not open for further replies.
T

treez

Guest
Maximum duty cycle for Boost PFC stage?

Hello,
We wish to set the maximum duty cycle of our 45khz boost pfc stage to 0.9. The controller is UCC28070.
Do you believe we will get problems from this.? We don't want it too high or else the current sense transformer reset voltage gets too high.

UCC28070 datasheet
https://www.ti.com/lit/ds/symlink/ucc28070.pdf
 

D.A.(Tony)Stewart

Advanced Member level 5
Joined
Sep 26, 2007
Messages
7,078
Helped
1,724
Reputation
3,447
Reaction score
1,729
Trophy points
1,413
Location
Richmond Hill, ON, Canada
Activity points
51,937
Re: Maximum duty cycle for Boost PFC stage?

interleaved cancellation degrades away from 50% d.f. so the size of core must be increased to avoid saturation of boost inductors.
 
  • 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

Top