Invention Grant
- Patent Title: Precision surge clamp with constant clamping voltage and near-zero dynamic resistance under various thermal, power and current levels
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Application No.: US14693410Application Date: 2015-04-22
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Publication No.: US10014682B2Publication Date: 2018-07-03
- Inventor: Dening Wang , Roland Son
- 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: H02H9/00
- IPC: H02H9/00 ; H02H9/04 ; H02H1/06
Abstract:
A system includes a voltage surge protection circuit that receives a source voltage from a source. The voltage surge protection circuit includes a reference circuit to generate a reference voltage based on the source voltage when the source voltage exceeds a clamping voltage and a feedback control circuit to receive the reference voltage and clamp an output voltage to the clamping voltage when the voltage from the source exceeds the clamping voltage. A dynamic resistance of the feedback control circuit is substantially zero.
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