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A method for controlling a switching power converter which includes a central capacitor exchanges charge between the capacitor and plural nodes of a first terminal, and then transfers the charge between the capacitor and plural nodes of a second terminal. The charge interchanged between the capacito

A method for controlling a switching power converter which includes a central capacitor exchanges charge between the capacitor and plural nodes of a first terminal, and then transfers the charge between the capacitor and plural nodes of a second terminal. The charge interchanged between the capacitor and the nodes establishes the amount of power transferred during each cycle. The charge which is interchanged is controlled by selecting the electrical phase between the currents drawn from the nodes and the voltages at the nodes.

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What is claimed is: 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

What is claimed is: 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. 2. A method according to claim 1, 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 drawn from the first first-node and the second first-node; and 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 drawn from the first first-node and the second first-node and the voltages at the first first-node and the second first-node, respectively. 3. 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 a first 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 said first 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; interchanging charge between the charge storage device and a first second-node of a plurality of second-nodes through a second inductive section; when a predetermined charge has been interchanged between the charge storage device and the first second-node, replacing the first second-node by a second second-node of the plurality of second-nodes; and interchanging charge between the charge storage device and the second second-node through the second inductive section; wherein the ratio of the predetermined charge interchanged between the charge storage device and the first second-node and the charge interchanged between the charge storage device and the second second-node is equal to a ratio of the currents injected into the first second-node and the second second-node; and wherein the magnitude of charge interchanged between the charge storage device and the first second-node and the magnitude of charge interchanged between the charge storage device and the second second-node are controlled by choosing the phase shift between the currents drawn from the first second-node and the second second-node and the voltages at the first second-node and the second second-node. 4. 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 a first 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 said first 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; interchanging charge between the charge storage device and a first second-node of a plurality of second-nodes through an inductive section; when a predetermined charge has been interchanged between the charge storage device and the first second-node, replacing the first second-node by a second second-node of the plurality of second-nodes; and interchanging charge between the charge storage device and the second second-node through an inductive section; wherein the ratio of the predetermined charge interchanged between the charge storage device and the first second-node and the charge interchanged between the charge storage device and the second second-node is equal to a ratio of the currents injected into the first second-node and the second second-node; wherein the magnitude of charge interchanged between the charge storage device and the first second-node and the magnitude of charge interchanged between the charge storage device and the second second-node are controlled by choosing the phase shift between the currents drawn from the first second-node and the second second-node and the voltages at the first second-node and the second second-node, respectively; and wherein interchanging of charge is performed through said first inductive section.