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US 10,897,195 B2Granted
Apparatus and method for charge pump power conversion
AssigneeChaoyang Semiconductor Jiangyin Technology Co., Ltd.
InventorsMykhaylo Teplechuk, Davide Cartasegna, Arnaud Toni, Bertrand Diotte
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Abstract
Present invention is an apparatus and method for power conversion charge pumps that uses cross-coupling capacitors. High efficiency power converter charge pump for both divide by 3 (⅓), divide by 3/2 (⅔) are explicitly discussed. The power conversion charge pumps utilizing cross coupled capacitors may provide up to 40% reduction in a number of switches required for a charge pump implementation, thus reducing design area cost while also resulting in high-efficiency performance.
Claims13
A power conversion charge pump, comprising:
- a first switching network having a first plurality of switches and at least one first flying capacitor, the first switching network coupled between a voltage input and a lower voltage;
- a second switching network having a second plurality of switches and at least one second flying capacitor, the second switching network coupled between the voltage input and the lower voltage;
- and
- at least two cross-coupling capacitors, the cross-coupling capacitors coupling the first switching network and the second switching network;
- with the first switching network and the second switching network each coupled to a load;
- with switches of the first switching network and switches of the second switching network configured to couple the at least one first flying capacitor, the at least one second flying capacitor, and the two cross-coupling capacitors in a plurality of configurations with respect to the voltage input, the lower voltage, and the load.
3 more elements
Dependencies are inferred from the claim text.