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Energy-efficient DC-DC regulators based on resonant structures with switched capacitors
https://doi.org/10.15518/isjaee.2024.01.062-074
Abstract
The new principle of designing of small-sized capacitor DC-DC regulators providing energy-efficient conversion and multizone regulation of output voltage of the alternative low-voltage power supply sources is proposed. It consists in alternately changing the low-voltage sub-ranges regulation by discretely changing the number of resonant chains involved in the conversion of a step-up capacitor DC-DC converter combined with a smooth change of the charge level of its first chain by a classic low-power PWM DC voltage regulator. Improvement of the regulator energy characteristics is achieved by multi-zone regulation and soft switching of the power circuit transistors of the capacitor DC-DC converter. The energy properties of the proposed DC-DC regulators are examined. It is shown that with increasing the number of resonant chains in the capacitor DC-DC converter, there is a tendency of regulator efficiency growth. For the considered in this paper circuits with a classic Buck and Boost PWM regulators the regulating characteristics are obtained and investigated and their efficiency is comparatively evaluated. The comparative analysis of energy and design properties shows a significant simplification of the power circuit by three semiconductor and two reactive elements, and also an increase in efficiency, on average over the control range by 1,5 % in the circuit with Boost PWM regulator.
About the Authors
L. G. Zotov
Novosibirsk State Technical University
Russian Federation
Russian Federation
Zotov Leonid -Dr. of Technical sciences, Prof., of the Theoretical Basis of Radio Engineering Department,
630073, Novosibirsk, K. Marx avenue, 20
K. A. Kuratov
Novosibirsk State Technical University
Russian Federation
Russian Federation
Kuratov Konstantin - Ph. D. of Technical sciences, Associate professor of the Design and technology of electronic devices Department,
630073, Novosibirsk, K. Marx avenue, 20
I. M. Bolshakov
Novosibirsk State Technical University
Russian Federation
Russian Federation
Bolshakov Ivan - graduate student of the Theoretical Basis of Radio Engineering Department,
630073, Novosibirsk, K. Marx avenue, 20
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Review
For citations:
Zotov L.G., Kuratov K.A., Bolshakov I.M. Energy-efficient DC-DC regulators based on resonant structures with switched capacitors. Alternative Energy and Ecology (ISJAEE). 2024;(1):62-74. (In Russ.) https://doi.org/10.15518/isjaee.2024.01.062-074
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