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:
Apr. 10, 2001
Filed:
Oct. 20, 1999
Jack Douglas Harmon, Carmel, IN (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
An apparatus and method are provided to deliver an output signal indicative of engine rotational speed and/or generator rotational speed. The output signal preferably is delivered to, or developed internally and used by, a voltage regulator. The output signal can be generated based on a ripple on a positive voltage input to the voltage regulator from a generator. A charging system containing such a voltage regulator and/or apparatus also is provided. Use of this apparatus and method advantageously circumvents the need for a separate connection between one or more phases of the generator (e.g., taken from an AC input to a bridge rectifier of the generator) and the voltage regulator, which connection typically was heretofore required by voltage regulators that are load-responsive or otherwise operate in a manner dependent upon the rotational speed of the generator and/or engine.