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:
Jun. 24, 2008

Filed:

May. 18, 2005
Applicants:

Kee-chee Tiew, Richardson, TX (US);

Jingwei Xu, Shanghai, CN;

Suribhotla Rajasekhar, Plano, TX (US);

Inventors:

Kee-Chee Tiew, Richardson, TX (US);

Jingwei Xu, Shanghai, CN;

Suribhotla Rajasekhar, Plano, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/40 (2006.01); G05F 1/56 (2006.01); G05F 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a method and system for controlling a direct current to direct current (DC-DC) converter includes an inductor coupled to receive a voltage input at an input terminal. A diode is coupled in series between the inductor and an output terminal of the DC-DC converter. A switch is coupled between the inductor and a ground reference. The switch receives a control signal from a controller for adjusting a duty cycle of the DC-DC converter. The duty cycle controls an output voltage at the output terminal. The controller generates the control signal in response to receiving a feedback signal, which is derived as a predefined function of a voltage feedback signal indicative of the output voltage and a current feedback signal indicative of a current flowing through the inductor.


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