Invention Grant
- Patent Title: Totem-pole circuit driver
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Application No.: US16367755Application Date: 2019-03-28
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Publication No.: US10547309B2Publication Date: 2020-01-28
- Inventor: Shinichi Tezuka
- Applicant: FUJI ELECTRIC CO., LTD.
- Applicant Address: JP Kawasaki-Shi, Kanagawa
- Assignee: FUJI ELECTRIC CO., LTD.
- Current Assignee: FUJI ELECTRIC CO., LTD.
- Current Assignee Address: JP Kawasaki-Shi, Kanagawa
- Agency: Rabin & Berdo, P.C.
- Priority: JP2018-091813 20180511
- Main IPC: H03K17/687
- IPC: H03K17/687 ; H03K17/567 ; H02M7/48 ; H01L29/739

Abstract:
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.
Information query
IPC分类: