Load adaptive, high efficiency, switched capacitor intermediate bus converter

Bradley Oraw, Raja Ayyanar

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

13 Citations (Scopus)

Abstract

A new non-isolated Intermediate Bus Converter is proposed using a divide-by-4 switched capacitor network. A load adaptive scheme is designed that maximizes the efficiency for all load currents. Detailed analysis using steady-state charge transfer is provided with a static charge constraint concept for degenerate switched capacitor networks. Simple average models for output impedance, capacitor and switch RMS currents, and efficiency are defined. A bus stability criterion is established, and a novel current splitting technique is introduced that reduces the capacitors' RMS currents. A 300W 48V to 12V prototype is designed using a provided efficiency-specified design procedure that achieves 96%-97% over the full range of load current, IA-25A.

Original languageEnglish (US)
Title of host publicationINTELEC, International Telecommunications Energy Conference (Proceedings)
Pages628-635
Number of pages8
DOIs
StatePublished - 2007
EventInternational Telecommunication Energy Conference, INTELEC 2007 - Rome, Italy
Duration: Sep 30 2007Oct 4 2007

Other

OtherInternational Telecommunication Energy Conference, INTELEC 2007
CountryItaly
CityRome
Period9/30/0710/4/07

Fingerprint

Switched capacitor networks
Capacitors
Stability criteria
Charge transfer
Switches

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Oraw, B., & Ayyanar, R. (2007). Load adaptive, high efficiency, switched capacitor intermediate bus converter. In INTELEC, International Telecommunications Energy Conference (Proceedings) (pp. 628-635). [4448856] https://doi.org/10.1109/INTLEC.2007.4448856

Load adaptive, high efficiency, switched capacitor intermediate bus converter. / Oraw, Bradley; Ayyanar, Raja.

INTELEC, International Telecommunications Energy Conference (Proceedings). 2007. p. 628-635 4448856.

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

Oraw, B & Ayyanar, R 2007, Load adaptive, high efficiency, switched capacitor intermediate bus converter. in INTELEC, International Telecommunications Energy Conference (Proceedings)., 4448856, pp. 628-635, International Telecommunication Energy Conference, INTELEC 2007, Rome, Italy, 9/30/07. https://doi.org/10.1109/INTLEC.2007.4448856
Oraw B, Ayyanar R. Load adaptive, high efficiency, switched capacitor intermediate bus converter. In INTELEC, International Telecommunications Energy Conference (Proceedings). 2007. p. 628-635. 4448856 https://doi.org/10.1109/INTLEC.2007.4448856
Oraw, Bradley ; Ayyanar, Raja. / Load adaptive, high efficiency, switched capacitor intermediate bus converter. INTELEC, International Telecommunications Energy Conference (Proceedings). 2007. pp. 628-635
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