US Patent 7863879 AC signal producer and method thereof
Patent 7863879 was granted and assigned to Holtek Semiconductor Inc. on January, 2011 by the United States Patent and Trademark Office.
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Patent abstract
An AC signal producer comprises a controlling unit, a Class-D switch circuit, and a low-pass filter. The control unit receives a DC signal and produces a PWM control signal via checking reference tables. The Class-D switch circuit receives the PWM control signal and outputs a square-wave signal. The low-pass filter converts the square-wave signal into the AC signal. Thereby, disadvantages associated with the utilization of an oscillator and a transformer to convert the DC signal to an AC signal could be solved.
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Patent Inventor Names
Yi-Chen Lin0
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US Patent 07863879 AC signal producer and method thereof US Patent 7863879 AC signal producer and method thereof
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Patent Number
07863879
Patent Number
7863879
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US Patent 07863879 AC signal producer and method thereof
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Is a
Current assignee
Patent jurisdiction
Patent number
07863879
Date of patent
January 4, 2011
Patent application number
12007604
Date Filed
January 14, 2008
Patent primary examiner
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