A simple hybrid 3-level buck-boost DC-DC converter with efficient PWM regulation scheme

Abdullah Abdulslam, Baker Mohammad, Mohammad Ismail, Yehea Ismail

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

This paper describes a 3-level buck-boost converter with an output voltage range up to double the input voltage. The proposed converter can be used for applications that require stepping up/down the input voltage depending on the operating conditions like solar power harvesting. The converter has a hybrid structure between inductor-based converters and capacitor-based converters by utilizing a one flying capacitor and an inductor in the charge transfer process. The converter features smaller inductor size and current ripples as compared to the traditional buck-boost inductor-based converter while offering a high efficiency as compared to SC converters making it suitable for efficient on-chip integration. A prototype circuit has been designed on a 65nm technology using a 5-nH parasitic bondwire inductor. Simulation results show that the proposed converter features up to 20% improvement in the efficiency over a conventional 1:2 SC converter for a wide range of output voltage values.

Original languageBritish English
Title of host publication2015 IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages368-371
Number of pages4
ISBN (Electronic)9781509002467
DOIs
StatePublished - 23 Mar 2016
EventIEEE International Conference on Electronics, Circuits, and Systems, ICECS 2015 - Cairo, Egypt
Duration: 6 Dec 20159 Dec 2015

Publication series

NameProceedings of the IEEE International Conference on Electronics, Circuits, and Systems
Volume2016-March

Conference

ConferenceIEEE International Conference on Electronics, Circuits, and Systems, ICECS 2015
Country/TerritoryEgypt
CityCairo
Period6/12/159/12/15

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