Invention Grant
- Patent Title: Free-wheeling diode control method and apparatus and power switching apparatus
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Application No.: US16805092Application Date: 2020-02-28
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Publication No.: US10917014B2Publication Date: 2021-02-09
- Inventor: Chengfeng Jiang , Hongfeng Liang
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Agency: Conley Rose, P.C.
- Priority: CN201710777928 20170901
- Main IPC: H02M3/156
- IPC: H02M3/156 ; H02M3/158
Abstract:
A free-wheeling diode control method includes determining whether a sum of a first pulse width value of a free-wheeling diode obtained according to an inductance current law and a third pulse width value of a main control tube meets a first preset condition, obtaining a determining result, and controlling, according to the determining result, conduction of the free-wheeling diode according to the first pulse width value or a second pulse width value of the free-wheeling diode obtained according to a volt-second balance law.
Information query
IPC分类:
