Patent ID: 7557464

Claim:
An input power control (IPC) module for transferring power from a plurality of power sources to an alternating current (AC) system, comprising: a direct current (DC) bus operable at a DC bus voltage; a non-isolated first primary converter module electrically coupled to the DC bus and operable to receive a first amount of power from a first power source, and operable to convert the received power from the first power source into a first amount of DC power at the DC bus voltage, wherein the first primary converter module comprises a first alternating current to direct current (AC/DC) converter and a first direct current to direct current (DC/DC) converter with only one of the first AC/AC converter and the first DC/DC converter coupled to the first power source; and an isolated second primary converter module electrically coupled to the DC bus and operable to receive a second amount of power from a second power source, and operable to convert the received power from the second power source into a second amount of DC power at the DC bus voltage, wherein the second primary converter module comprises second AC/DC converter and a second DC/DC converter with only one of the second AC/AC converter and the DC/DC converted coupled to the second power source, wherein the second power source is electrically isolated from the DC bus by the isolated second primary converter module.