On-chip surge protection circuit
TW202640799APending Publication Date: 2026-10-01AIROHA TECHNOLOGY CORPORATION
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Patent Information
- Application Number
- TW115110149
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-24
- Filing Date
- 2026-03-18
- Publication Date
- 2026-10-01
Smart Images
Figure TWG2TA001079592_001 
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Abstract
An on-chip surge protection circuit includes a first voltage rail, a second voltage rail, a third voltage rail, a coupling circuit, and a protection circuit. The first voltage rail provides a first voltage to at least one protected device. The second voltage rail provides a second voltage to the at least one protected device, where the second voltage is lower than the first voltage. The coupling circuit is coupled between the first voltage rail and the third voltage rail. The protection circuit is coupled between the third voltage rail and the second voltage rail. The on-chip surge protection circuit and the at least one protected device are integrated in a same chip.
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