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:
Nov. 05, 2013
Filed:
Aug. 11, 2009
Weihong Qiu, San Jose, CA (US);
Shangyang Xiao, Sunnyvale, CA (US);
Nattorn Pongratanankul, Sunnyvale, CA (US);
Weihong Qiu, San Jose, CA (US);
Shangyang Xiao, Sunnyvale, CA (US);
Nattorn Pongratanankul, Sunnyvale, CA (US);
Intersil Americas LLC, Milpitas, CA (US);
Abstract
A voltage regulation circuit includes a power stage for generating a regulated output voltage responsive to an input voltage and at least one PWM signal. A voltage divider circuit is connected to the output of the power stage and generates a feedback voltage. First circuitry generates the at least one PWM signal responsive to a voltage error signal, a filtered output voltage signal and a ramp voltage signal. The filtered output voltage is used for substantially removing loop gain change caused by the voltage divider circuit. A voltage compensation circuit generates the voltage error signal responsive to a feedback voltage and a reference voltage.