Patent ID: 7462952
Filing Date: 2008-12-09
Classification: B60H,H02H,H02J,Y02T

Abstract:
1. An electrical power control system for use with a recreational vehicle or similar load to selectively control power thereto from either a utility power source or a generator power source comprising a power control stage coupled to the utility power source and the generator power source by a power supply stage wherein said power supply stage includes a low-voltage direct current power supply to operate the electrical power control stage and a utility/generator switch arrangement to selectively direct the power from either the utility power source or the generator power source to the recreational vehicle and wherein said power control stage includes a control processor section to monitor polarity, phase and voltage levels, and a load management section to control the operation of the electrical power control system to control the utility/generator switch arrangement to selectively feed power from either the utility power source or the generator power source to the recreational vehicle under a predetermined plurality of operating parameters or conditions and fault conditions, said switch arrangement comprises a first power control switch selectively operable in a first state or a second state coupled between the first power source and the operating load to feed power from the first power source to the operating load when said first power control switch is in said first state and a second power control switch selectively operable in a first state or a second state coupled between the second power source and the operating load to feed power from the second power source to the operating load when said second power control switch is in said first state, further including a power control switch selector selectively operable in a first state and a second state coupled between said first power control switch and said power control stage and between said second power control switch and said power control stage such that power is fed from the first power source to the operating load when said first power control switch is in said first state and said power control switch selector is in said first state and power is fed from the second power source to the operating load when said second power control switch is in said first state and said power control switch selector is in said second state, said power control stage generates a control signal to activate the other of said first power control switch or said second power control switch to said first state to supply power to the operating load from the corresponding power source when a malfunction signal is received from said first power control switch or said second power control switch to be deactivated.