Patent ID: 7528502

Claim:
A circuit for providing power to a load, said circuit comprising: a main power/energy source coupled to the load and used to provide power to the load; a power generating circuit coupled to the load, and in parallel with the main power/energy source, for providing power to the load, a pair of capacitors arranged in parallel and coupled between said power generating circuit and said load; a first switching element coupled between the power generating circuit and the pair of capacitors; a second switching element coupled between the pair of capacitors and the load; and a controller for activating the first and second switching elements, wherein the first and second switching elements are alternately activated such that the first switching element allows charge to be stored from the power generating circuit onto one of the capacitors, while the second switching element allows charge previously stored on the other capacitor to be delivered to the load, thereby reducing the amount of power drawn from the main power/energy source.