US Patent 7893680 Power control using at least 540 degrees of phase
Patent 7893680 was granted and assigned to Xerox on February, 2011 by the United States Patent and Trademark Office.
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Patent abstract
A circuit and method for generating an electrical alternating current power signal in which the alternating current signal is dropped once at a non-zero crossing point in every 540 plus N degrees, where N is a non-negative number. This manner of controlling power to a device enables wide ranges of power control while generating acceptable levels of power line harmonics and while conforming to existing international regulations governing voltage variations.
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Patent Inventor Names
Barry J. Thurlow0
Duncan I. Stevenson0
John W D. Cooper0
Scott M. Potter0
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US Patent 07893680 Power control using at least 540 degrees of phase US Patent 7893680 Power control using at least 540 degrees of phase
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Patent Number
078936800
Patent Number
78936800
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Patent Number
078936800
Date of Patent
February 22, 2011
0Patent Application Number
109742130
Date Filed
October 27, 2004
0Official Website
Patent Primary Examiner
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US Patent 07893680 Power control using at least 540 degrees of phase
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07893680
Date of patent
February 22, 2011
Patent application number
10974213
Date Filed
October 27, 2004
Patent primary examiner
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