US Patent 7477025 Power control circuit for adjusting light
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Patent Inventor Names
Chih-Jen Teng0
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Patent abstract
The present invention discloses a power control circuit for adjusting light, which adopts both frequency modulation and amplitude modulation for the control and starts using the amplitude modulation control after the frequency change exceeds a predetermined limit range, such that the voltage and frequency for driving the lamp set fall within a range acceptable to the lamp set and minimize the effect of frequency interferences.
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US Patent 07477025 Power control circuit for adjusting light US Patent 7477025 Power control circuit for adjusting light
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Patent Number
07477025
Patent Number
7477025
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US Patent 07477025 Power control circuit for adjusting light
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Is a
Patent jurisdiction
Patent number
07477025
Date of patent
January 13, 2009
Patent application number
11790002
Date Filed
April 23, 2007
Patent primary examiner
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