AC-DC CONVERTER WITH UNITY POWER FACTOR

摘要

A method for construction of voltage or current power sources receiving an AC input, the power sources based on inclusion of a buffer stage feeding a converter operating with an output driver to a load. The buffer stage includes a buffer capacitance and a control means, such that the consumed input current from the AC input is proportional to the AC input voltage to the power source. The buffer capacitance functions as a charge buffer, enabling maintenance of the consumed input current over the entire period of the AC input voltage, and acting to separate the load from the consumed input current.