公开(公告)号：US20220416676A1

公开(公告)日：2022-12-29

申请号：US17362875

申请日：2021-06-29

Applicant: Texas Instruments Incorporated

Inventor： Ramkumar Sivakumar ,  Brent Alan McDonald ,  Yalong Li

IPC: H02M3/335 ,  H02M1/00 ,  H02M1/08

Abstract: A method for operating a resonant converter in a burst mode includes determining the polarity of a transformer voltage across a secondary winding of a transformer. The method includes determining, from the polarity of the transformer voltage, on/off states of first and second transistors coupled to the secondary winding of the transformer. If the transformer voltage has a first polarity, the method includes commencing a burst period by alternately turning on/off high-side and low-side transistors electrically connected to a primary winding of the transformer.

公开(公告)号：US11843320B2

公开(公告)日：2023-12-12

申请号：US17362875

申请日：2021-06-29

Applicant: Texas Instruments Incorporated

Inventor： Ramkumar Sivakumar ,  Brent Alan McDonald ,  Yalong Li

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33592 ,  H02M1/0035

Abstract: A method for operating a resonant converter in a burst mode includes determining the polarity of a transformer voltage across a secondary winding of a transformer. The method includes determining, from the polarity of the transformer voltage, on/off states of first and second transistors coupled to the secondary winding of the transformer. If the transformer voltage has a first polarity, the method includes commencing a burst period by alternately turning on/off high-side and low-side transistors electrically connected to a primary winding of the transformer.