Invention Grant
- Patent Title: Fault and short-circuit protected output driver
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Application No.: US15903690Application Date: 2018-02-23
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Publication No.: US10560086B2Publication Date: 2020-02-11
- Inventor: Andre Mourrier , Vincent Thiery , Vincent Laville , Loic Bourguine
- Applicant: Infineon Technologies North America Corp.
- Applicant Address: US CA El Segundo
- Assignee: Infineon Technologies Americas Corp.
- Current Assignee: Infineon Technologies Americas Corp.
- Current Assignee Address: US CA El Segundo
- Agency: Slater Matsil, LLP
- Main IPC: H03K17/082
- IPC: H03K17/082 ; H02H7/08 ; H02H7/122 ; H02H3/08 ; H02H3/20 ; H02M7/5387 ; H03K17/284 ; H02H3/087

Abstract:
A driver and protection circuit for driving a power switch is disclosed. The driver and protection circuit includes a fault detection block configured to detect a discrepancy between a reference drive signal and a measured voltage at a gate of the power switch. The driver and protection circuit also includes a short circuit detection block configured to detect a gate-to-source short circuit or a gate-to-drain short circuit of the power switch. The driver and protection circuit further includes a latch coupled to the fault detection block and the short circuit detection block to selectively turn off an output driver coupled to the gate of the power switch when a fault or a short circuit is detected, and wherein the latch is configured to send a diagnostic signal when the fault or the short circuit is detected.
Public/Granted literature
- US20180183426A1 Fault and Short-Circuit Protected Output Driver Public/Granted day:2018-06-28
Information query
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