OVERVOLTAGE REPETITION PREVENTION CIRCUIT, METHOD THEREOF, AND POWER FACTOR COMPENSATION CIRCUIT USING THE SAME

摘要

The present invention relates to an overvoltage repetition prevention circuit, a method thereof, and a power factor correction circuit including the same. The power factor correction circuit includes: an inductor receiving an input voltage and supplying an output voltage; a power switch connected to the inductor and controlling an inductor current to the inductor; and a power factor correction controller differently controlling a control structure generating a control voltage controlling a switching operation of the power switch during a predetermined overvoltage stabilization period generated in synchronization with a time that an output voltage is an overvoltage and the control structure generating the control voltage in a normal state in which the output voltage is not the overvoltage, wherein the control structure is determined according to a difference between the output voltage and a predetermined output target voltage during the overvoltage stabilization period.