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:
Sep. 06, 2022
Filed:
Aug. 17, 2021
Applicant:
Xiamen Kiwi Instruments Corporation, Xiamen, CN;
Inventors:
Assignee:
Xiamen Kiwi Instruments Corporation, Xiamen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 29/02 (2016.01); H02P 25/04 (2006.01); H02P 6/26 (2016.01); H02P 29/024 (2016.01);
U.S. Cl.
CPC ...
H02P 29/027 (2013.01); H02P 25/04 (2013.01); H02P 2207/01 (2013.01);
Abstract
According to some embodiments, AC chopping circuit includes a switching circuit, a synchronizing signal generating circuit, a switch driving circuit and an auxiliary power supplying circuit. In some examples, the switching circuit are coupled to an AC power source and a load. In certain examples, the synchronizing signal generating circuit provides a synchronizing signal which is related to a polarity of the AC power source. In some examples, the switching circuit is controlled based at least in part on the synchronizing signal.