Air conditioning systems must, at times, maintain nearly constant operation. An inverter with PFC boost circuit for harmonic suppression is used to drive the fan motor and compressor in the package AC system. The power module can be used to provide DC power required for the inverter and for the microcontroller and other internal electronics. We have developed a power module to provide peak current required for 2 and 4 way solenoid valves used for outdoor unit in extreme temperature conditions. The low noise operation of the power module insures quiet as well as energy-saving high efficiency operation.