Invention Grant
- Patent Title: Totem-pole circuit driver
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Application No.: US16523677Application Date: 2019-07-26
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Publication No.: US10560088B1Publication Date: 2020-02-11
- 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: JP2018-152167 20180813
- Main IPC: H03K17/16
- IPC: H03K17/16 ; H03K3/356 ; H03K19/20

Abstract:
A driver circuit for driving a totem-pole circuit including cascade-connected high-side and low-side power devices. The driver circuit includes high-side and low-side drive circuits which respectively drive the high-side and low-side power devices, a pulse generation circuit which generates set and reset signals based on a high-side input logic signal, a level shift circuit which transmits the set and reset signals to the high-side drive circuit, a high-side potential detection circuit which detects a high-side reference potential, a high-side potential determination circuit which outputs an event signal upon detecting that the high-side reference potential exceeds a reference voltage, and an on-pulse stop circuit which validates or invalidates a low-side input logic signal based on the high-side input logic signal and the event signal. When the high-side input logic signal is at a low level and upon receiving the event signal, the on-pulse stop circuit invalidates the low-side input logic signal.
Public/Granted literature
- US20200052690A1 TOTEM-POLE CIRCUIT DRIVER Public/Granted day:2020-02-13
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