Invention Grant
US08258853B2 Power switch circuit for tracing a higher supply voltage without a voltage drop
有权
电源开关电路，用于跟踪较高的电源电压，无电压降
- Patent Title: Power switch circuit for tracing a higher supply voltage without a voltage drop
- Patent Title (中): 电源开关电路，用于跟踪较高的电源电压，无电压降
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Application No.: US12815387Application Date: 2010-06-14
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Publication No.: US08258853B2Publication Date: 2012-09-04
- Inventor: Wei-Ming Ku
- Applicant: Wei-Ming Ku
- Applicant Address: TW Hsinchu Science Park, Hsin-Chu
- Assignee: eMemory Technology Inc.
- Current Assignee: eMemory Technology Inc.
- Current Assignee Address: TW Hsinchu Science Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Main IPC: H03K17/00
- IPC: H03K17/00
Abstract:
A power switch circuit includes a voltage selecting circuit, an auxiliary transistor and a control circuit. The control circuit includes an inverter, or a first inverter and a second inverter forming a latch. The power switch circuit is capable of tracing a higher supply voltage and outputting the voltage level of the higher supply voltage without a voltage drop, so the junction leakage can be eliminated and the drive capability of the power switch circuit is ensured.
Public/Granted literature
- US20110304381A1 POWER SWITCH CIRCUIT FOR TRACING A HIGHER SUPPLY VOLTAGE WITHOUT A VOLTAGE DROP Public/Granted day:2011-12-15
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