A Current-Efficient Pseudo-3D Regulated Dickson Charge Pump

A pseudo-3D regulated dc-dc boost converter, based on a modified Dickson charge pump (DCP) topology, is presented as an effective solution to achieve optimized current conversion efficiency. In this solution, currents of the clock generator are directly conveyed to the DCP, with the result of reduci...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2024-08, Vol.39 (8), p.9878-9890
Main Authors: Ballo, Andrea, Grasso, Alfio Dario, Palumbo, Gaetano
Format: Article
Language:English
Subjects:
Capacitors
Charge pumps
Circuits
Clock generators
Clocks
dc–dc boost converter
Dickson charge pump (DCP)
Feedback loops
Oscillators
Regulation
regulation scheme
switched capacitor
Switches
Topology
Voltage dividers
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Summary:A pseudo-3D regulated dc-dc boost converter, based on a modified Dickson charge pump (DCP) topology, is presented as an effective solution to achieve optimized current conversion efficiency. In this solution, currents of the clock generator are directly conveyed to the DCP, with the result of reducing the power wasted by drivers and oscillator. The whole converter implements two concurrent feedback loops: the external one, constituted by the output voltage divider and the error amplifier, serving to set the output voltage; the internal one, included in the DCP core, automatically tunes the clock frequency and makes the system efficient in terms of current conversion. A prototype of the design was implemented in a standard 130-nm CMOS process and its operation was tested and compared to the previous arts.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2024.3397791