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.

Date of Patent:
Aug. 06, 2019

Filed:

Dec. 28, 2015
Applicant:

Infineon Technologies Austria Ag, Villach, AT;

Inventors:

Xiaowu Gong, Singapore, SG;

Siu Kam Kok, Singapore, SG;

Yong Siang Teo, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/12 (2006.01); H02M 1/32 (2007.01); H02M 7/06 (2006.01); G01R 19/155 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/126 (2013.01); G01R 19/155 (2013.01); H02M 7/06 (2013.01); H02M 2001/322 (2013.01);
Abstract

An example method includes storing a peak voltage level, a valley voltage level, and a frequency of a signal that corresponds to an alternating current (AC) signal across a capacitor; periodically determining whether a current peak voltage level of the signal is different than the stored peak voltage level of the signal or a current valley voltage level of the signal is different than the stored valley voltage level of the signal; determining, based on whether the current peak voltage level of the signal is different than the stored peak voltage level or the current valley voltage level of the signal is different than the stored valley voltage level, whether the AC signal has been removed from the capacitor; and in response to determining that the AC signal has been removed from the capacitor, discharging the capacitor.


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