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:
May. 07, 2019
Filed:
Mar. 30, 2018
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Abstract
A voltage selection circuit includes: a power detection circuit configured to compare an output voltage with a first input voltage and a second input voltage, respectively; a latch circuit, coupled to the power detection circuit, and configured to flip respective logic states of a pair of output signals when the output voltage is lower than either the first input voltage or the second input voltage; and a selection circuit, coupled to the latch circuit, and configured to use either the first input voltage or the second input voltage as the output voltage based on the respective logic states of the pair of output signals.