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:
Aug. 18, 2009
Filed:
Jul. 20, 2006
Jiancheng Zhang, Los Altos Hills, CA (US);
Shaoan Dai, Cupertino, CA (US);
Jiancheng Zhang, Los Altos Hills, CA (US);
Shaoan Dai, Cupertino, CA (US);
Marvell International Ltd., , BM;
Abstract
A voltage converter includes, among other things, an amplifier, a voltage combiner, and a hysteretic comparator. The amplifier has a first input terminal which receives a first voltage representative of an output voltage of the voltage converter, a second input terminal which receives a first reference voltage, and an output terminal which generates a second voltage proportional to a difference between the first voltage and the first reference voltage. The voltage combiner combines the second voltage with a second reference voltage to generate a combined voltage. The comparator causes a third voltage to decrease if a feedback voltage defined by the third voltage is detected by the comparator as being greater than a first threshold voltage defined by the combined voltage, and further to cause the third voltage to increase if the feedback voltage is detected by the comparator as being less than the first threshold. The third voltage is applied to a first terminal of a load external to the voltage converter.