Method and apparatus for using an energy reserve to provide voltage to a power factor correction circuit in the event of a power interuption

摘要

A power factor correction circuit is disclosed. The power factor correction circuit comprises a converter portion, a boost stage portion coupled to the converter portion, and an energy reserve portion coupled to the boost stage portion, the energy reserve portion for providing a voltage for the power factor correction circuit in the event of an interruption of power to the circuit. Through the use of the circuit in accordance with the present invention, the use of expensive, higher rated circuitry components is avoided. By avoiding the use of expensive higher rated circuitry components a significant reduction in manufacturing costs is achieved.