Bidirectional buck-boost converter with variable output voltage

Bhaskar Krishnamachari, Dariusz Czarkowski

Research output: Contribution to journalConference articlepeer-review


An increasing number of manufacturing processes rely on ultra-high speed and accuracy machines. Piezoceramic actuators are being utilized as parts of such machines. So far, only linear and switched-capacitor power supplies have been used for driving piezoceramic actuators in such applications. This paper proposes a switch-mode power supply to reduce cost and increase system efficiency. In the proposed design, the traditional PWM buck-boost topology is modified to accommodate bidirectional operation, and dynamic compensation is applied between the reference and the output to ensure good frequency response and low steady-state error of the variable output voltage. The converter operation is verified by Saber simulations.

Original languageEnglish (US)
Pages (from-to)446-449
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - 1998
EventProceedings of the 1998 IEEE International Symposium on Circuits and Systems, ISCAS. Part 5 (of 6) - Monterey, CA, USA
Duration: May 31 1998Jun 3 1998

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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