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:
Dec. 04, 2009
Applicants:
Sheng-chieh Su, Taipei, TW;
Jung-tai Chen, Taipei, TW;
Inventors:
Sheng-Chieh Su, Taipei, TW;
Jung-Tai Chen, Taipei, TW;
Assignee:
ASUSTeK Computer Inc., Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/00 (2006.01); G05F 1/00 (2006.01); H03K 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a switching power circuit connected to a motherboard of a computer system. The switching power circuit includes a PWM circuit and a snubber circuit. The PWM circuit includes a phase terminal, and it may output an output voltage to the motherboard via the phase terminal. The snubber circuit includes a zener diode. A negative terminal of the zener diode is connected to the phase terminal, and a positive terminal is connected to the ground terminal. The level of a breakdown voltage of the zener diode is equal to the level of the output voltage in a steady state.