Patent ID: 6493243
Filing Date: 2002-12-10
Classification: H02J

Abstract:
A power supply for operation in a redundant power system, the power supply comprising:a power section comprising a power output for sharing a load with at least one other power supply; a redundant circuit controlling the power section for cooperation with a corresponding redundant circuit of the at least one other power supply, the redundant circuit operating as determined by a local master/slave status as one of a master and a slave; a common master-present connection for connection to a corresponding common master-present connection of the at least one other power supply; and arbitration logic in communication with the common master-present connection, wherein if the arbitration logic senses a master-not-present signal at the common master-present connection, then the arbitration logic sets the local master/slave status to master and transmits a master-present signal to the common master-present connection, and wherein if the arbitration logic senses a master-present signal at the common master-present connection and the local master/slave status is not set to master, then the arbitration logic sets the local master/slave status to slave.