Patent ID: 7402983
Filing Date: 2008-07-22
Classification: H02M

Abstract:
1. A method of transferring electric charge between a charge storage device and a first power terminal having a plurality of first-nodes, said method comprising: interchanging charge between the charge storage device and a first first-node of the plurality of first-nodes through an inductive section; when a predetermined charge has been interchanged between the charge storage device and the first first-node, replacing the first first-nodes by a second first-node of the plurality of first-nodes; interchanging charge between the charge storage device and the second first-node through the inductive section; wherein the ratio of the predetermined charge interchanged between the charge storage device and the first first-node and the charge interchanged between the charge storage device and the second first-node is equal to a ratio of the currents flowing in the first first-node and the second first-node; wherein the magnitude of charge interchanged between the charge storage device and the first first-node and the magnitude of charge interchanged between the charge storage device and the second first-node are controlled by selecting the phase shift between the currents flowing in the first first-node and the second first-node and the voltages at the first first-node and the second first-node, respectively.