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:
Nov. 29, 2011
Filed:
Dec. 17, 2008
Yen-hui Wang, Hsinchu, TW;
Chi-hao Wu, Taipei, TW;
Chia-chieh Hung, Taoyuan County, TW;
Chin-yen Lin, Hsinchu County, TW;
Yen-Hui Wang, Hsinchu, TW;
Chi-Hao Wu, Taipei, TW;
Chia-Chieh Hung, Taoyuan County, TW;
Chin-Yen Lin, Hsinchu County, TW;
Grenergy Opto, Inc., Hsinchu Science Park, Hsinchu, TW;
Abstract
A current-level controlling device for a power supply includes a reception end for receiving a current sense signal, a reference voltage generator for generating a reference voltage, an adaptive reference voltage generator, coupled to the reference voltage generator and the reception end, for adjusting the reference voltage according to variation of peak values of the current sense signal, so as to generate an adaptive reference voltage, a comparator, coupled to the reception end and the adaptive reference voltage generator, for comparing the current sense signal and the adaptive reference voltage, to generate a comparison result, and a control unit, coupled to the comparator, for controlling a switch transistor of the power supply according to the comparison result.