公开(公告)号：US09906143B1

公开(公告)日：2018-02-27

申请号：US15282189

申请日：2016-09-30

Applicant: Dell Products L.P.

Inventor： Wei Cheng Yu ,  Tsung Cheng Liao ,  Merle Wood ,  Geroncio O. Tan

IPC: H02M3/335 ,  H02M1/08 ,  H02H7/12 ,  H02H11/00 ,  H02H3/087 ,  H02M1/00

CPC classification number: H02M3/33507 ,  H02H3/087 ,  H02H7/1213 ,  H02H11/007 ,  H02M1/08 ,  H02M2001/0009

Abstract: Systems and methods are provided that may be implemented to provide a power supply with automatic overcurrent protection (OCP) point calibration and/or current sense resistor (Rsense) verification. The provided systems and methods may implement auto-calibration techniques on the secondary side of a power supply to achieve a more precise OCP point than is possible with conventional adapter technology, and in one example may implement auto trimming for OCP voltage threshold value.

公开(公告)号：US09979300B1

公开(公告)日：2018-05-22

申请号：US15417498

申请日：2017-01-27

Applicant: Dell Products L.P.

Inventor： Merle Wood ,  Wei-Cheng Yu ,  Tun-Chieh Liang ,  Tsung-Cheng Liao ,  Wen-Yung Chang

IPC: H02M3/335 ,  H02M1/00 ,  H02M7/757 ,  H02M5/42 ,  H02M7/68 ,  H02M3/24 ,  H02M7/44 ,  H02M1/44

CPC classification number: H02M3/33507 ,  H02M1/44 ,  H02M3/33569 ,  H02M3/337 ,  H02M2001/0058

Abstract: Systems and methods for enhancing peak power capability and hold-up time in a resonant converter having a LLC topology may include a couple choke transformer circuit that may control an inductance of the couple choke transformer circuit and improve power efficiency of the resonant converter. The resonant converter may also include a resonant tank circuit that may provide improved peak power delivery of the resonant converter. The resonant converter may further include a resonant tank control circuit to control the resonant tank circuit and may increase the peak gain of the resonant converter, increase a voltage range of the input voltage, and extend a hold-up time of the input voltage when an AC power failure occurs.