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:
Dec. 05, 2017
Filed:
Dec. 03, 2014
Applicant:
Denso Corporation, Kariya, Aichi-pref., JP;
Inventor:
Mitsuhiro Kanayama, Takahama, JP;
Assignee:
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 9/00 (2006.01); H02J 9/06 (2006.01); H01H 63/36 (2006.01); H02J 3/00 (2006.01); B60L 11/18 (2006.01);
U.S. Cl.
CPC ...
H02J 9/062 (2013.01); B60L 11/1816 (2013.01); B60L 11/1824 (2013.01); B60L 11/1861 (2013.01); H01H 63/36 (2013.01); H02J 3/005 (2013.01); B60L 2210/10 (2013.01); B60L 2210/30 (2013.01); B60L 2210/40 (2013.01); B60L 2230/16 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2240/80 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/705 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7088 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/7241 (2013.01); Y02T 90/121 (2013.01); Y02T 90/127 (2013.01); Y02T 90/128 (2013.01); Y02T 90/14 (2013.01); Y02T 90/163 (2013.01); Y10T 307/625 (2015.04);
Abstract
An AC power supply source switching apparatus includes a switch and a switch connecting a load to an AC power supply system and a DC secondary battery, respectively. When one switch, which is driven to turn off, did not actually turn off, the switch is driven to turn off again after being turned on. When an impedance of the load decreases and a load current flows in a load line, no AC voltage is developed on the load line. As a result, it is determined that the switch has actually turned off. Then the other switch is turned on thereby to switch over connection of the load.