Patent ID: 7898104

Claim:
An apparatus for arbitrarily connecting a load across two output terminals wherein any one of the two output terminals is connected to any of a selected one of a plurality of polyphase power sources, comprising: a controller comprising: one or more sets of output terminals, each set comprising a first output terminal and a second output terminal; and means for providing a control signal to the first output terminal and to the second output terminal of each output terminal set; one or more pair of switches, each pair of switches comprising: a first switch, comprising: a first input terminal for receiving a control signal on a line from the first output terminal of a given controller output terminal set; a second input terminal for receiving a signal on a line from a first power source; a third input terminal for receiving a signal on a line from a second power source; and an output terminal; a second switch, comprising: a first input terminal for receiving a control signal on a line from the second output terminal of the given controller output terminal set; a second input terminal for receiving a signal on a line from the second power source; a third input terminal for receiving a signal on a line from a third power source; and an output terminal, wherein an electrical load is connected between the output terminal of the first switch and the output terminal of the second switch.