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. 24, 2006
Filed:
Nov. 19, 2003
Satoru Shigeta, Hitachinaka, JP;
Yuuji Maeda, Hitachiota, JP;
Junichi Sakano, Hitachi, JP;
Shinji Shirakawa, Hitachi, JP;
Satoru Shigeta, Hitachinaka, JP;
Yuuji Maeda, Hitachiota, JP;
Junichi Sakano, Hitachi, JP;
Shinji Shirakawa, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In order to provide an interface circuit, a power converter using the same and an electric vehicle using the same, wherein this interface circuit ensures improved control reliability without employing a photo-coupler, an interface circuitA transfers control signals to the power transistor in a large-current circuitfrom a small-signal circuitfor driving a power transistor. The interface circuitA has a noise absorberthat electrically absorbs a noise voltage produced between the ground of the small-signal circuitand that of the power transistor. The noise absorbertransfers to the power transistor the control signals generated by the small-signal circuit, without being affected by the noise voltage if produced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile