Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 9, 2010
Patent Application Number
12091074
Date Filed
October 18, 2006
Patent Primary Examiner
Patent abstract
The invention relates to a power factor controller for use in a power factor correction circuit. The power factor controller comprises a first input (VinSense) for receiving an input voltage (Vin) of the power factor correction circuit, a second input (VoSense) for receiving an output voltage (Vout) of the power factor correction circuit, and a controllable current source (VCCI) having a control input coupled to the first input, and a current supply output coupled to the second input, wherein said controllable current source (VCCI) sources a current to the second input (VoSense) that is inversely proportional to the input voltage.
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