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. 27, 2014
Filed:
Jun. 20, 2011
Tetsuya Matsuyama, Nara, JP;
Tetsuya Matsuyama, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The present invention provides a power supply device for an electric vehicle that allows highly efficient operation of a compressor inverter. A power supply device for motor vehiclehas: a main circuithaving a power source, a DC-DC converter, and a main inverterthat drives a main motor; an auxiliary circuithaving an auxiliary inverterthat drives an auxiliary motor, a first electrical circuitthat is connected to the main circuiton a primary side of the DC-DC converter, a second electrical circuitthat is connected to the main circuiton a secondary side of the DC-DC converter, and a connection circuitconfigured to be capable of selecting one of the first electrical circuitand the second electrical circuitas a path for supplying a direct current voltage to the auxiliary inverter; and a control devicethat controls the connection circuitwhen the main motoris in power running operation so that switching between the first electrical circuitand the second electrical circuitis performed corresponding to a required voltage of the auxiliary inverter