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:
Apr. 14, 2020
Filed:
Sep. 27, 2017
Applicant:
Quanta Computer Inc., Taoyuan, TW;
Inventors:
Assignee:
QUANTA COMPUTER INC., Taoyuan, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); H02M 1/42 (2007.01); G01R 31/40 (2020.01); G06F 1/28 (2006.01); H02M 3/157 (2006.01);
U.S. Cl.
CPC ...
G01R 27/2605 (2013.01); G01R 31/40 (2013.01); G06F 1/28 (2013.01); H02M 1/42 (2013.01); H02M 3/157 (2013.01);
Abstract
A power supply unit that allows measurement of the capacitance without interrupting operation of the unit is disclosed. The unit includes a controller that causes a voltage change of a capacitor from a first threshold voltage between two periods of time. The time difference of when the voltage reaches a second threshold voltage is measured and the capacitance is determined from the time measurement, voltage change and power dissipation. The determination of capacitance may be performed while the power supply unit is actively supplying power.