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:
Aug. 13, 2013
Filed:
Sep. 20, 2011
Jo-yu Wang, New Taipei, TW;
Wei-jhih Wen, Taichung, TW;
Jo-Yu Wang, New Taipei, TW;
Wei-Jhih Wen, Taichung, TW;
Richtek Technology Corporation, R.O.C., Chupei, Hsin-Chu, TW;
Abstract
The present invention discloses a switching regulator including: a power stage having an upper gate device and a lower gate device coupled with each other, for converting an input voltage to an output voltage and generating a phase voltage at a node between the upper gate device and the lower gate device; and a control circuit including: a switch operation circuit controlling the power stage, the switch operation circuit generating a test signal turning on the upper gate device for a period of time and then turning it off; and a comparator for generating a ready signal indicating that the input voltage is ready according to comparison between the phase voltage and a reference voltage after the upper gate device is turned off.