Step-down converter with switched capacitors at high frequency

Authors :: S. Conti
L. Isabella
Luca Carraresi
Giuliano Parrini
Source :: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 596:117-121
Publication Year :: 2008
Publisher :: Elsevier BV, 2008.
Abstract: The characteristics of two hybrid step-down charge-pump voltage regulators (2.5, 1.25 V) are presented. The regulators feature a current multiplication factor 4 and two capacitor banks structure which allows to work easily in the megahertz region and with currents up to 1.5 A. Attention has been dedicated to the study of the power efficiency as a function of the frequency, in particular to the charge transfer factor leading to the voltage efficiency which has been fully described in an analytic way. This has allowed to evaluate possible improvements of the present prototypes.

Subjects :: Physics
Nuclear and High Energy Physics
Charge (physics)
Function (mathematics)
Voltage regulator
law.invention
Capacitor
law
Electronic engineering
Charge pump
Multiplication
Instrumentation
Electrical efficiency
Voltage

ISSN :: 01689002
Volume :: 596
Database :: OpenAIRE
Journal :: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Accession number :: edsair.doi...........f51f92778123fda7cfec51264dc5b7f3
Full Text :: https://doi.org/10.1016/j.nima.2008.07.119