Patent ID: 8193758
Filing Date: 2012-06-05
Classification: H02J

Abstract:
1. A power conversion circuit comprising: a first terminal for receiving electric power having an output voltage from a solar panel exposed to light; and a power converter coupled between said first terminal and a second terminal, and for selectively operating in a charging mode and a powering mode, wherein said power converter receives said output voltage at said first terminal, transfers said electric power to provide a voltage at said second terminal to a power source and maintains said output voltage at said first terminal at a threshold voltage in said charging mode, wherein said power converter reduces an output current of said solar panel to maintain said output voltage at said threshold voltage if an illumination level of said light decreases in said charging mode, wherein said power converter increases said output current of said solar panel to maintain said output voltage at said threshold voltage if said illumination level of said light increases in said charging mode, and wherein said power converter delivers power from said power source to a load in said powering mode.