Patent ID: 7638982
Filing Date: 2009-12-29
Classification: H02M

Abstract:
1. A switched capacitor regulator for driving high load currents from a DC voltage source comprising: a pumping capacitor; a load capacitor; and a plurality of switches configured to place the regulator into a first charging stage and, alternately, a second charging stage, wherein in the first charging stage, the DC voltage source is coupled in series with the pumping capacitor which is further coupled in series with the load capacitor such that current from the DC voltage source charges the pumping capacitor and the load capacitor in a first direction, and wherein in the second charging stage, the DC voltage source is coupled in series with the pumping capacitor which is further coupled in series with the load capacitor such that current from the DC voltage source charges the pumping capacitor in a second direction opposing the first direction and the load capacitor in the first direction.