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:
Aug. 03, 1999
Filed:
Apr. 11, 1997
Tatsuki Kouwa, Tokyo, JP;
Keiichi Komurasaki, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A control device for a vehicle generator which includes a semiconductor switching element for controlling the flow of current in a field winding of a generator driven by a vehicle internal combustion engine; a control unit which outputs a control signal for turning the semiconductor switching element on and off to thereby control the output voltage of the generator; and a field current detecting element for detecting the field current. The control unit has a field current limiter which outputs the control signal, depending on the output from the field current detecting element. The field current detecting element and the field current limiter are constituted as a hybrid integrated circuit. The field current detecting element and the field current limiter have respective ground patterns coupled at a location other than the ground terminal of the hybrid integrated circuit.