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:
May. 07, 1985
Filed:
Jul. 29, 1983
Applicant:
Inventor:
Robert J Nowakowski, Indianapolis, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 15 ; 307 16 ; 320 17 ; 320 64 ; 322 59 ; 322 26 ;
Abstract
A battery charging system for a dual-voltage motor vehicle electrical system that has a pair of series-connected batteries that can energize an electric cranking motor. One of the batteries is charged from a diode-rectified alternating current generator. A voltage regulator regulates the output voltage of the generator and includes a switching means connected in series with the field winding of the generator to control field current. The other battery is charged by field discharge current that is produced by the voltage induced in the generator field winding when the switching means is switched to a nonconductive state.