Patent ID: 6330176
Filing Date: 2001-12-11
Classification: H02J

Abstract:
A power transfer apparatus for selectively transferring power to an AC power bus from first and second AC power sources, the apparatus comprising:a first switch operative to couple and decouple the first AC power source to and from the AC power bus responsive to a first control signal;a second switch operative to couple and decouple the second AC power source to and from the AC power bus responsive to a second control signal;a first switch control circuit that generates the first control signal responsive to a first AC source voltage produced by the first AC power source and to a first inhibit signal and that generates a second inhibit signal responsive to a state of the first switch; anda second switch control circuit that generates the second control signal responsive to a second AC source voltage produced by the second AC power source and to the second inhibit signal and that generates the first inhibit signal responsive to a state of the second switch.