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:
Mar. 24, 2009
Filed:
Oct. 13, 2005
Alexandru Hartular, San Jose, CA (US);
Chun LU, San Jose, CA (US);
You-yuh Shyr, San Jose, CA (US);
Constantin Bucur, Santa Clara, CA (US);
Vlad Mihail Popescu-stanesti, San Jose, CA (US);
Jiwei Chen, Santa Clara, CA (US);
Oleg Kobildjanov, San Jose, CA (US);
Alexandru Hartular, San Jose, CA (US);
Chun Lu, San Jose, CA (US);
You-Yuh Shyr, San Jose, CA (US);
Constantin Bucur, Santa Clara, CA (US);
Vlad Mihail Popescu-Stanesti, San Jose, CA (US);
Jiwei Chen, Santa Clara, CA (US);
Oleg Kobildjanov, San Jose, CA (US);
O2Micro International Limited, Georgetown, Grand Cayman, KY;
Abstract
A controller for a DC to DC converter. The controller may comprise linear mode circuitry and switch mode control circuitry. The linear mode control circuitry may be capable of providing a first control signal to a controlled device of the DC to DC converter. The controlled device may operate as a variable resistor in response to the first control signal to control an output voltage of the DC to DC converter. The switch mode control circuitry may be capable of providing a second control signal to the controlled device of the DC to DC converter. The controlled device may turn ON and OFF in response to the second control signal to control the output voltage of the DC to DC converter. One of the linear mode control circuitry and the switch mode control circuitry may be enabled. The controller may also include protection circuitry.