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. 14, 2010
Filed:
Jan. 17, 2008
Chun-hua Xia, Shanghai, CN;
Xiao-ru Wu, Shanghai, CN;
LI Zeng, Shanghai, CN;
Da-wei HU, Shanghai, CN;
Shih-hao Liu, Taipei, TW;
Chun-Hua Xia, Shanghai, CN;
Xiao-Ru Wu, Shanghai, CN;
Li Zeng, Shanghai, CN;
Da-Wei Hu, Shanghai, CN;
Shih-Hao Liu, Taipei, TW;
Inventec corporation, Taipei, TW;
Abstract
A voltage regulating circuit including an error signal generator, a comparator, a switch unit, a low-pass filter and a modulating unit is provided. The error signal generator respectively receives a reference voltage signal and a feedback signal, and generates an error signal. The comparator respectively receives the error signal and a comparing signal, and generates a pulse width modulation signal. The switch unit regulates an input voltage signal to generate an output voltage signal according the pulse width modulation signal. The low-pass filter filters out the high frequency of the output signal and produces the feedback signal. The modulating unit is coupled to the low-pass filter and the error signal generator for regulating a transient voltage of the output voltage signal.