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.

Date of Patent:
Dec. 11, 2012

Filed:

Feb. 23, 2010
Applicants:

Wei Han, Taipei, TW;

Ching-ji Liang, Taipei, TW;

Tao Liu, Taipei, TW;

Inventors:

Wei Han, Taipei, TW;

Ching-Ji Liang, Taipei, TW;

Tao Liu, Taipei, TW;

Assignee:

Asus Technology Pte Ltd., Eightrium, SG;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

A DC to DC converter includes a control circuit, a gate driver circuit, and a power stage circuit. The control circuit receives and compares a DC output voltage. When the DC output voltage lower than a first threshold voltage, a PWM signal with a first frequency is outputted, and when the DC output voltage higher than the first threshold voltage, the PWM signal with a second frequency is outputted. The second frequency is higher than the first frequency. The gate driver circuit receives the PWM signal and converts the PWM signal to a first driving signal and a second driving signal. The power stage circuit converts a DC input voltage to the DC output voltage according to the first driving signal and the second driving signal.


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