Invention Grant
- Patent Title: Driver circuit for switching edge modulation of a power switch
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Application No.: US17252461Application Date: 2019-07-15
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Publication No.: US11646730B2Publication Date: 2023-05-09
- Inventor: Alexander Spaeth , Joachim Joos
- Applicant: Robert Bosch GmbH
- Applicant Address: DE Stuttgart
- Assignee: ROBERT BOSCH GMBH
- Current Assignee: ROBERT BOSCH GMBH
- Current Assignee Address: DE Stuttgart
- Agency: Norton Rose Fulbright US LLP
- Agent Gerard Messina
- Priority: DE 2018211841.8 2018.07.17
- International Application: PCT/EP2019/069003 2019.07.15
- International Announcement: WO2020/016178A 2020.01.23
- Date entered country: 2020-12-15
- Main IPC: H03K17/74
- IPC: H03K17/74 ; H03K17/16 ; H03K17/687

Abstract:
A driver circuit for switching edge modulation of a power switch. The driver circuit includes a first driver circuit input including a downstream input node, and a power switch including an upstream first gate node. A charging path including a charging resistor is situated between the input node and the first gate node. A discharging path including a discharging resistor is situated between the input node and the first gate node. A gate path is situated between the input node and the first gate node. A power switch transistor, whose gate is connected to the first gate node, is provided. A gate path includes a gate resistor. The driver circuit is configured so that, during a switching process of the power switch, the gate path is temporarily short-circuited either via the charging path or the discharging path, to increase the slope of the switching behavior of the power switch.
Public/Granted literature
- US20210281257A1 DRIVER CIRCUIT FOR SWITCHING EDGE MODULATION OF A POWER SWITCH Public/Granted day:2021-09-09
Information query
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