Patent ID: 8422256

Claim:
A control system for inverters connected in parallel energized by a power source for servicing a load, comprising: a first inverter connected to a power source by a first inverter feed path, the first inverter being switchable “on” or “off” via a control signal; an output transformer in circuit with the first inverter and in circuit with the load via the first inverter feed path; at least one second inverter connected to a power source by a second inverter feed path, the second inverter being switchable “on” or “off” via a control signal; and an output transformer in circuit with the second inverter and in circuit with the load via the second inverter feed path and wherein the output transformer is configured to remain magnetized via a back-feed from the output transformer of the first inverter feed path; control circuitry in electrical communication with each inverter; at least one means for determining the demand of the load; wherein the control circuitry is configured to communicate a signal to each inverter for switching it “on” or “off” to accommodate increases or decreases in load demand.