Patent ID: 9036386
Filing Date: 2015-05-19
Classification: H02M,Y02B,Y02P

Abstract:
1. A power factor correction system comprising: a first power factor correction stage coupleable to an AC power source to receive a current from the AC power source and configured to provide a first output current to a capacitor and a load, the capacitor being coupled in parallel to the load, the first power factor correction stage including a first controllable switch for controlling phasing of the first output current of the first power factor correction stage; a second power factor correction stage coupleable to the AC power source to receive the current from the AC power source and configured to provide a second output current to the capacitor and the load such that the second output current from the second stage is combined with the first output current from the first power factor correction stage, the second power factor correction stage including a second controllable switch for controlling phasing of the second output current; and a controller configured to