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:
Feb. 20, 2024
Filed:
Jun. 23, 2022
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventor:
Kazuo Hattori, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02M 7/06 (2006.01); H02J 9/06 (2006.01);
U.S. Cl.
CPC ...
H02J 9/061 (2013.01); H02M 1/32 (2013.01); H02M 7/06 (2013.01);
Abstract
A switching module includes mechanical relays, semiconductor switches, voltage detectors to detect an input voltage to a power converter, and a controller. When the controller determines that the waveform of the input voltage is abnormal during a first determination period, the controller outputs an open command signal to mechanical relays corresponding to a power source electrically coupled to the power converter. When the controller subsequently determines that the waveform of the input voltage is normal during a second determination period, the controller outputs a close command signal to the mechanical relays.