UCC28710: looking for a QR controller with switching frequency above 100 kHz

Eric Dj

Part Number: UCC28710
Other Parts Discussed in Thread: UCC28782, UCC28600, UCC28630

Team,

I am working on a project which requires an ACDC to power an e-meter. I am looking for a QR controller which can operate above 100 kHz to minimize the size of the transformer. I realized that none of our QR controller can go above 100 kHz. Am I missing something?

Rgds, Eric

over 3 years ago

0 Jaden Ning over 3 years ago

TI__Expert 7080 points

Hi Eric,

We have some of QR controller which can support higher than 100khz switching frequency , UCC28630 can support 120khz , UCC28600 can support 130khz , and LM 5023 to 130khz . I'd like to know what maximum output power you want to design . we also have a active clamp flyback controller called UCC28782 can support up to 1Mhz frequency , which is a new topology compared with traditional QR . higher efficiency and high cost.

Thanks.