Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 26, 2010
Patent Application Number
11967254
Date Filed
December 30, 2007
Patent Primary Examiner
Patent abstract
A power converter for compensating a maximum output power includes a power switch, a control circuit, an oscillator and a frequency modulator. The control circuit generates a PWM signal in response to the pulse signal generated by the oscillator. The frequency modulator generates a second discharge signal to the oscillator for controlling the maximum output power of the power converter. The second discharge signal is decreased for prolonging a switching period of the PWM signal under a high-line voltage of the power converter.
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