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:
Jun. 13, 1989
Filed:
Feb. 25, 1988
Kazutoshi Kaneyuki, Hyogo, JP;
Shiro Iwatani, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A controller for an AC power generator in vehicles having a rectifier for rectifying an AC output of an AC power generator equipped with a field coil, a battery charged with a rectified output of the rectifier, and a voltage regulator for adjusting an output voltage of the AC power generator by controlling a current flowing through the field coil to turn on and off; the voltage regulator being equipped with a detecting portion to detect the field current flowing through said field coil; and further comprising a field current controller, having a reference voltage supplying portion which generates a reference voltage to determine the field current by charging a set value which depends on the intermittent condition of the field current of the voltage regulator on the basis of a larger time constant than that of the field coil, and a comprising and controlling portion which compares each output of the detecting portion for a field current and the reference voltage supplying portion so as to control the voltage regulator to change successively a conductive condition of the field coil; whereby the field current can be increased slowly.