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:
Sep. 22, 1987
Filed:
May. 20, 1986
Applicant:
Inventors:
Pietro Menniti, Milan, IT;
Fabio Marchio, Busto Arsizio, IT;
Assignee:
SGS Microelettronica SpA, Agrate Brianza, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ; H02P / ;
U.S. Cl.
CPC ...
323303 ; 323275 ; 322 60 ;
Abstract
A voltage regulator for an alternator has an integrated actuator stage consisting of a Darlington transistor pair and includes an auxiliary stage which, at the time of starting of the alternator, causes a low voltage drop across the actuator stage by causing only one of the two transistors in the Darlington transistor pair to conduct. This provides, at the exciter winding of the alternator, disposed in series with the actuator stage, the current required for the starting of the alternator at a low rotational speed.