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:
Oct. 05, 2021
Filed:
May. 27, 2020
Jtekt Corporation, Osaka, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Fumihiko Sato, Kashiwara, JP;
Masataka Okuda, Toyota, JP;
Toshiyuki Mikida, Anpachi-gun, JP;
Hiroaki Hanzawa, Toyota, JP;
JTEKT CORPORATION, Osaka, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An auxiliary power source device includes a main power source-side path, an auxiliary power source-side path, a power source control circuit, an analog determination circuit that is provided separately from the power source control circuit, and a power source switching circuit. The power source control circuit controls switching between a conduction state and an interruption state on the main power source-side path and the auxiliary power source-side path. The analog determination circuit determines an occurrence of abnormality in the main power source and generates a switching signal when the occurrence of the abnormality in the main power source is determined. The power source switching circuit switches a power source for supplying power to a power supply target, from the main power source to the auxiliary power source.