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. 20, 2012
Filed:
Jul. 01, 2009
Yen-hui Wang, Hsinchu, TW;
Wei-chun Hsiao, Jhonghe, TW;
Yen-Hui Wang, Hsinchu, TW;
Wei-Chun Hsiao, Jhonghe, TW;
Grenergy Opto, Inc., Hsinchu Science Park, Hsinchu, TW;
Abstract
A system corrected programmable integrated circuit is applied to a power supply and includes a comparator unit, a digital output unit and a programming unit. The comparator unit includes an external feedback voltage input end and a reference voltage input end for inputting a feedback voltage and a reference voltage respectively, such that when the feedback voltage equals the reference voltage, the comparator unit transmits a control signal to the digital output unit. When receiving the control signal, the digital output unit stops outputting the reference voltage and the current reference voltage is recorded as a programming voltage for outputting to the programming unit. When receiving the programming voltage, the programming unit programs the programming voltage and transmits the voltage to the reference voltage input end. Accordingly, the present invention automatically detects and compensates a system error to reduce external element, yet still achieving a qualified range of product specification.