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. 26, 2019
Filed:
Mar. 22, 2017
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Abstract
A voltage regulator circuit includes a comparator configured to compare whether an output voltage of the voltage regulator circuit is either equal to or less than a reference voltage; a control unit, coupled to the comparator, and configured to use a duty ratio of the output voltage to an input voltage of the control unit to estimate a time period; a first transistor, coupled to the control unit, and configured to be selectively turned on based on the estimated time period; and an inductor, coupled to the first transistor, configured to conduct an inductor current, wherein when the comparator determines that the output voltage is either equal to or less than the reference voltage, the first transistor is turned on during the estimated time period to allow the inductor current to be increased so as to accordingly increase the output voltage.