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.

Date of Patent:
Sep. 05, 2006

Filed:

Sep. 12, 2003
Applicants:

Brian Thomas Branecky, Oconomowoc, WI (US);

William L. Mehlhorn, Menomonee Falls, WI (US);

Andrew W. Phillips, West Bend, WI (US);

Albert Keith Pant, Carlisle, OH (US);

Inventors:

Brian Thomas Branecky, Oconomowoc, WI (US);

William L. Mehlhorn, Menomonee Falls, WI (US);

Andrew W. Phillips, West Bend, WI (US);

Albert Keith Pant, Carlisle, OH (US);

Assignee:

A.O. Smith Corporation, Milwaukee, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 23/00 (2006.01); H02P 25/00 (2006.01); H02P 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A controller for an electric machine. The controller includes a first voltage input that directly provides a first voltage to the electric machine, a second voltage input configured to receive a second voltage, and an inverter coupled to the second voltage input. The inverter is configured to be activated by the second voltage, to frequency-regulate the second voltage to generate a frequency-regulated voltage, and to provide the frequency-regulated voltage to the electric machine.


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