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:
Jul. 25, 2017
Filed:
Aug. 19, 2014
Lear Corporation, Southfield, MI (US);
Zhonghui Bing, Canton, MI (US);
Lear Corporation, Southfield, MI (US);
Abstract
A power supply system and method for providing uninterrupted low voltage electrical power to control circuitry in an electric or hybrid-electric vehicle. A transformer includes a first primary side configured to receive a low voltage input from a vehicle battery and a second primary side configured to receive a rectified AC high voltage input. A first controller coupled to the low voltage input is operational to drive a first switching device to regulate a low voltage output using energy from the low voltage input when the rectified AC high voltage input is absent. A second controller connectable to the rectified AC high voltage input is operational to drive a second switching device to regulate the low voltage output using energy from the rectified AC high voltage input and deactivate or activate the first controller using a switching signal when the rectified AC high voltage input is present or absent, respectively.