- 专利标题: Totem-pole circuit driver
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申请号: US16367755申请日: 2019-03-28
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公开(公告)号: US10547309B2公开(公告)日: 2020-01-28
- 发明人: Shinichi Tezuka
- 申请人: FUJI ELECTRIC CO., LTD.
- 申请人地址: JP Kawasaki-Shi, Kanagawa
- 专利权人: FUJI ELECTRIC CO., LTD.
- 当前专利权人: FUJI ELECTRIC CO., LTD.
- 当前专利权人地址: JP Kawasaki-Shi, Kanagawa
- 代理机构: Rabin & Berdo, P.C.
- 优先权: JP2018-091813 20180511
- 主分类号: H03K17/687
- IPC分类号: H03K17/687 ; H03K17/567 ; H02M7/48 ; H01L29/739
摘要:
A totem-pole circuit driver for driving cascade-connected high-side and low-side power devices. The driver includes a high-side drive circuit and a low-side drive circuit that respectively drive the high-side and low-side power devices, a pulse generation circuit which generates a set signal and a reset signal respectively upon detecting a first edge and a second edge of a high-side input logic signal, and generates a control signal from a low-side input logic signal, a high-side potential determination circuit which compares a high-side reference potential detected by a high-side potential detection circuit and a reference voltage, and an event signal generation circuit which outputs an event signal in accordance with the comparison. Upon receiving the event signal, and upon detecting that the high-side input logic signal instructs to turn off the high-side power device, the pulse generation circuit stops outputting the control signal for a period of time.
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