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:
May. 16, 2023
Filed:
Jan. 14, 2020
Applicant:
Hitachi Astemo, Ltd., Hitachinaka, JP;
Inventors:
Hiroyoshi Gomi, Hitachinaka, JP;
Masaki Itabashi, Hitachinaka, JP;
Yawara Kato, Hitachinaka, JP;
Kazutoshi Tanabe, Hitachinaka, JP;
Assignee:
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 27/08 (2006.01); H02P 23/14 (2006.01);
U.S. Cl.
CPC ...
H02P 27/08 (2013.01); H02P 23/14 (2013.01);
Abstract
A motor actuator of the present invention includes, between a battery and an inverter, a first solid state relay and a second solid state relay in which directions of parasitic diodes are opposite to each other. When supply of power from the battery to the inverter is to be interrupted, the first solid state relay is brought into an OFF state or all of a plurality of field effect transistors are brought into the OFF state, and then the second solid state relay is brought into the OFF state.