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:
Mar. 04, 1986
Filed:
Mar. 21, 1983
Mitsuharu Morishita, Himeji, JP;
Shinichi Kouge, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A battery charge indicator circuit includes a voltage regulator 3 which maintains the voltage at a supply terminal 202 of an alternator rectifier 2 at a first predetermined value. A diode 404 and an indicating lamp 7 are connected in series between the alternator and a battery 5, and a switching circuit 406, 407 is connected between ground and the junction of the diode and indicating lamp. A capacitor 408 is connected in parallel to the switching circuit, and a Zener diode 403 causes the switching circuit to conduct when the supply terminal voltage reaches a second predetermined value higher than the first predetermined value. The charge on the capacitor causes the indicating lamp to remain illuminated to warn the driver that the battery is not being charged, in spite of the Zener diode being cyclicly rendered conductive and non-conductive.