Filter capacitance reduction in DC/DC step-down reconfigurable Switched-Capacitor Converters by a balanced switching

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

A challenge for DC-DC converters miniaturization is the inability to integrate passive components on silicon due to their relatively large size at modern operating frequencies of some MHz. Switched Capacitor Converters may be a preferred choice for developing new miniaturized product formats because of their relatively small size and elimination of magnetic elements. The size and cost a DC-DC power supply are essentially defined by its bulky filter (storage) capacitor that is selected to meet output voltage ripple requirements. This paper investigates into filter capacitance reduction possibilities in different reconfigurable step-down capacitive converters by capacitor balanced switching. It is shown that balanced switching approach allows for filter capacitor reduction by 30-50% for an open-loop operation with a target voltage conversion ratio. Reducing filter capacitance also allows to speed up converter open-loop dynamic response.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Optimisation of Electrical and Electronic Equipment, OPTIM
Pages776-782
Number of pages7
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 13th International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2012 - Brasov
Duration: May 24 2012May 26 2012

Other

Other2012 13th International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2012
CityBrasov
Period5/24/125/26/12

Fingerprint

Capacitors
Capacitance
Capacitor storage
Electric potential
DC-DC converters
Dynamic response
Silicon
Costs

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Ruderman, A. (2012). Filter capacitance reduction in DC/DC step-down reconfigurable Switched-Capacitor Converters by a balanced switching. In Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment, OPTIM (pp. 776-782). [6231830] https://doi.org/10.1109/OPTIM.2012.6231830

Filter capacitance reduction in DC/DC step-down reconfigurable Switched-Capacitor Converters by a balanced switching. / Ruderman, Alex.

Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment, OPTIM. 2012. p. 776-782 6231830.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ruderman, A 2012, Filter capacitance reduction in DC/DC step-down reconfigurable Switched-Capacitor Converters by a balanced switching. in Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment, OPTIM., 6231830, pp. 776-782, 2012 13th International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2012, Brasov, 5/24/12. https://doi.org/10.1109/OPTIM.2012.6231830
Ruderman A. Filter capacitance reduction in DC/DC step-down reconfigurable Switched-Capacitor Converters by a balanced switching. In Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment, OPTIM. 2012. p. 776-782. 6231830 https://doi.org/10.1109/OPTIM.2012.6231830
Ruderman, Alex. / Filter capacitance reduction in DC/DC step-down reconfigurable Switched-Capacitor Converters by a balanced switching. Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment, OPTIM. 2012. pp. 776-782
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