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. 01, 2002
Filed:
Feb. 28, 2000
Hidenori Yamanashi, Shizuoka, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
In a system for controlling electromotive force of a motor of an electric vehicle, an intelligent-power switch unit (IPS1) is connected to a power supply line ( ) between a battery ( ) and a motor controller ( ) in parallel with a main relay ( ) instead of a precharge circuits having mechanical relays and charge resistors. The intelligent-power switch unit (IPS1) mainly has an electric-power-supply control unit including a MOSFET (QA) serving as a semiconductor switching device, and is integrated in one chip structure. Accordingly, the cost and size can be reduced, and damage of the motor controller ( ) caused from a rush current occurring when electric power has been supplied can effectively be prevented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile