Invention Grant
- Patent Title: Actively tracking switching speed control and regulating switching speed of a power transistor during turn-on
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Application No.: US17852785Application Date: 2022-06-29
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Publication No.: US11770119B2Publication Date: 2023-09-26
- Inventor: Zheming Li , Mark-Matthias Bakran , Daniel Domes , Robert Maier , Franz-Josef Niedernostheide
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Harrity & Harrity, LLP
- Main IPC: H03K17/042
- IPC: H03K17/042 ; H03K17/04

Abstract:
A gate driver system includes a gate driver circuit coupled to a gate terminal of a transistor and configured to generate an on-current during a plurality of turn-on switching events to turn on the transistor, wherein the gate driver circuit includes a first driver configured to source a first portion of the on-current to the gate terminal to charge a first portion of the gate voltage and a second driver configured to, during a first boost interval, source a second portion of the on-current to the gate terminal to charge a second portion of the gate voltage; a measurement circuit configured to measure a transistor parameter indicative of an oscillation of a load current for a turn-on switching event; and a controller configured to receive the measured transistor parameter and regulate a length of the first boost interval based on the measured transistor parameter.
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Information query
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