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. 27, 1979
Filed:
Mar. 08, 1976
Applicant:
Inventor:
James B Farr, Ann Arbor, MI (US);
Assignee:
Tecumseh Products Company, Tecumseh, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
322 94 ; 320 39 ; 320 70 ; 320D / ;
Abstract
A permanent magnet alternator is connected directly across the battery through a full-wave bridge rectifier. The bridge includes a pair of controlled rectifiers which are selectively rendered conductive to charge the battery through the bridge when the battery voltage drops below a preset value. A Zener diode and one transistor monitor the battery voltage and control a second transistor which in turn controls gating current from the alternator to the controlled rectifiers.