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. 22, 2018
Filed:
Sep. 07, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Tomohiro Nakamura, Miyoshi, JP;
Yuta Kojima, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A power supply device may include a first power line configured to connect a power source to a load via a relay, at least one diode disposed on the first power line between the relay and the load, a second power line disposed in parallel with the first power line and configured to connect the power source to the load via a switching element, and a controller configured to control on and off of the switching element. A voltage drop that occurs across the switching element when the switching element is turned on is smaller than a voltage drop that occurs across the at least one diode when the relay is turned on. The controller is configured to determine whether the switching element is on or off based on a voltage across the at least one diode and a voltage supplied to the load.