Patent ID: 7687935
Filing Date: 2010-03-30
Classification: B60H,H02H,H02J,Y02T

Abstract:
1. An electrical power control system for use with an electrical load to selectively control power thereto from a power source comprising a power control stage coupled to the power source by a power supply stage wherein said power supply stage includes a low-voltage direct current power supply to operate said power control stage and a switch arrangement to selectively direct the power from the power source to the electrical load wherein said power control stage includes a control processor section to monitor polarity, phase and voltage levels from the power source and a load management section to control the operation of the electrical power control system to control said switch arrangement to selectively feed power from the power source to the electrical load under a predetermined plurality of operating parameters or conditions and fault conditions, said low-voltage direct current power supply being electrically isolated and magnetically coupled such that direct current power is fed to said power control stage independent of the power fed to the electrical load.