The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 04, 2012
Filed:
Jun. 14, 2010
Applicant:
Wei-ming Ku, Taipei County, TW;
Inventor:
Wei-Ming Ku, Taipei County, TW;
Assignee:
eMemory Technology Inc., Hsinchu Science Park, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/00 (2006.01);
U.S. Cl.
CPC ...
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.