Patent ID: 8179698

Claim:
A power converter system that receives an input supply voltage to power at least one load, comprising: at least one power converter operating at a desired efficiency; a power storage system coupled to the at least one power converter for receiving power supplied from the at least one power converter and storing power therein; and a controller that turns on the power converter during a first time interval and turns off the power converter during a second time interval any time the at least one power converter operates at an efficiency that is below the desired efficiency while the power converter receives the input supply voltage, wherein during the first time interval, the power converter operates at the desired efficiency to supply power to the power storage system and the at least one load, and wherein during the second time interval when the at least one power converter is turned off, the power storage system supplies power to the at least one load, wherein the ratio of the first time interval and the second time interval is controlled to operate the power converter at the desired efficiency.