Charge transfer apparatus and method therefore
DCFirst Claim
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; and
interchanging charge between the charge storage device and the second first-node through the inductive section.
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Abstract
An apparatus and method therefore transfers electric charge between a charge storage device (25) and a first power terminal (11) having a plurality of first-nodes. The method interchanges charge between the charge storage device and a first first-node of the plurality of first-nodes through an inductive section (22); and, when a predetermined charge has been interchanged between the charge storage device and the first first-node, replacing the first first-node by a second first-node of the plurality of first-nodes. Charge is interchanged between the charge storage device and the second first-node through the inductive section. Preferably, the ratio of the 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. Charge can also be interchanged between the charge storage device and a second power terminal (12) using a similar method.
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Citations
52 Claims
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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:
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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; and interchanging charge between the charge storage device and the second first-node through the inductive section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A charge transfer apparatus comprising:
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an inductive section; a charge storage device coupled with the inductive section to form a resonant circuit with the inductive section; a first power terminal having a plurality of first nodes; a plurality of first switches coupling the first power terminal with the resonant circuit; and a control unit for controlling the operation of the plurality of first switches to interchange a first predetermined amount of charge between a first node of the plurality of first nodes and the energy storage element and to interchange a second predetermined amount of charge between a second node of the plurality of first nodes and the energy storage element, wherein the ratio of the first predetermined amount of charge interchanged between the charge storage device and the first node and the second predetermined amount of charge interchanged between the charge storage device and the second node is equal to a ratio of the currents drawn from the first node and the second node.
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18. A charge transfer apparatus comprising:
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an inductive section; a charge storage device coupled with the inductive section to form a resonant circuit with the inductive section; a first power terminal having a plurality of first nodes; a plurality of first switches coupling the first power terminal with the resonant circuit; a control unit for controlling the operation of the plurality of first switches to interchange a first predetermined amount of charge between a first node of the plurality of first nodes and the charge storage device and to interchange a second predetermined amount of charge between a second node of the plurality of first nodes and the charge storage device, wherein the ratio of the first predetermined amount of charge interchanged between the charge storage device and the first node and the second predetermined amount of charge interchanged between the charge storage device and the second node is equal to a ratio of the currents drawn from the first node and the second node; a second power terminal having a plurality of second nodes; and a plurality of second switches coupling the second power terminal and the resonant circuit; the control unit for controlling the operation of the plurality of second switches to interchange a third predetermined amount of charge between a first second-node of the plurality of second nodes and the charge storage device and to interchange a fourth predetermined amount of charge between a second second-node ofthe plurality of second nodes and the charge storage device, wherein the ratio of the third predetermined amount of charge interchanged between the charge storage device and the first second-node and the fourth predetermined amount of charge interchanged between the charge storage device and the second second-node is equal to a ratio ofthe currents injected into the first node and the second node. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A charge transfer apparatus for directly transferring energy from an input terminal having a plurality of input nodes to an output terminal having a plurality of output nodes, said charge transfer apparatus comprising:
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a plurality of input switches coupled with the input nodes; a plurality of output switches coupled with the output nodes; a charge storage device coupled in series between the plurality of input switches and the plurality of output switches; an inductive section coupled in series with the charge storage device such that the inductive section and the charge storage device form a series resonant circuit; and a control unit for operating the plurality of input switches and the plurality of output switches, wherein the control unit simultaneously turns on two input switches and two output switches to forming a connection between two input nodes and two output nodes with the inductive section and the charge storage device in series, and, when a predetermined charge has been extracted from a one of the two input nodes, the control unit turns on a third input switch, and, when sufficient charge has been injected into a one of the two output nodes, the control unit turns on a third output switch. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. An electronic transformer circuit for transferring power from an input terminal having a plurality of input nodes to an output terminal having a plurality of output nodes, the electronic transformer circuit comprising:
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a plurality of input switches coupled with the input node; an inductive section coupled with the plurality of input switches; a charge storage device coupled in series with the inductive section; a single-phase transformer having a primary winding and a secondary winding, the primary winding coupled in parallel with the charge storage device; a plurality of output switches, the secondary winding coupled in series with the plurality of output switches; and a control unit for operating of the plurality of input switches and the plurality of output switches, wherein the control unit alternately turns on the plurality of input switches, to transfer charge from the input terminal to the charge storage device, and turns on the plurality of output switches, to transfer charge from the charge storage device through the single-phase transformer to the output terminal. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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Specification