Invention Grant
- Patent Title: Protective circuit enabling different bias levels responsive to event faults
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Application No.: US15225507Application Date: 2016-08-01
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Publication No.: US10284191B2Publication Date: 2019-05-07
- Inventor: Md. Abidur Rahman , Adam Quirk , Stephen Nortman , Sualp Aras
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Lawrence J. Bassuk; Charles A. Brill; Frank D. Cimino
- Main IPC: H02H3/00
- IPC: H02H3/00 ; H03K17/082 ; H02H5/04 ; H02H3/06 ; H03K17/08

Abstract:
A circuit protective system. The system includes an output controlling enablement of a transistor and an input sensing an operational parameter associated with the transistor. The system also includes detection circuitry providing an event fault indicator if the operational parameter violates a condition. The system also includes protective circuitry disabling the transistor in response to the event fault indicator and subsequently selectively applying an enabling bias to the transistor; the enabling bias is selected from at least two different bias levels and in response to a number of event fault indications from the detection circuitry.
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