PARALLEL-STACKED MINI INVERTER FOR CONTINUOUS HIGH EFFICIENCY LOW-POWER OUTPUT DURING MAIN INVERTER SLEEP MODE

摘要

A power converter for converting direct current (DC) power to alternating current (AC) power includes a first power converter section and a second power converter section connected in parallel with the first power converter section. A power rating of the first power converter section is substantially greater than a power rating of the second power converter section. A controller is operatively coupled to the first power converter section and the second power converter section, the controller configured to enable at least the first power controller section when a power demand placed on the power converter exceeds a prescribed power level, and disable the first power controller and enable the second power controller section when the power demand placed on the power converter is below the prescribed power level. An advantage of the power converter in accordance with the present disclosure is that it minimizes parasitic losses associated with larger power sections of the converter.