Invention Grant
- Patent Title: Protection to avoid abnormal operation caused by a shorted parameter setting pin of an integrated circuit
- Patent Title (中): 避免由集成电路的参数设置短路引起的异常操作
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Application No.: US13092282Application Date: 2011-04-22
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Publication No.: US08687331B2Publication Date: 2014-04-01
- Inventor: Shao-Hung Lu , Jing-Meng Liu , Jo-Yu Wang , Isaac Y. Chen , An-Tung Chen
- Applicant: Shao-Hung Lu , Jing-Meng Liu , Jo-Yu Wang , Isaac Y. Chen , An-Tung Chen
- Applicant Address: TW Hsinchu
- Assignee: Richtek Technology Corp.
- Current Assignee: Richtek Technology Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: TW99113278A 20100427
- Main IPC: H02H3/00
- IPC: H02H3/00
Abstract:
For a system to avoid abnormal operation caused by a shorted parameter setting pin of an integrated circuit, a protection apparatus and method apply a buffered reference voltage to the parameter setting pin to define an internal parameter of the integrated circuit by the buffered reference voltage and an external element connected to the parameter setting pin, and detect the rapid variation of the internal parameter to trigger a shutdown signal or slow down the speed of the variation of the internal parameter reflected to an adjustable signal of the integrated circuit.
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