A capacitive level shifter for high voltage (2.5kV)

Thomas Andersen, Michael A. E. Andersen, Ole Cornelius Thomsen, M. P. Foster, D. A. Stone

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

A capacitive level-shifter as a part of a high voltage halfbridge gate driver is resented in this work. The levelshifter utilizes a differential capacitor pair to transfer the information from low side to high side. A thorough evaluation of the critical parts of the level-shifter is presented with focus on low power consumption as well as low capacitive load between the floating half-bridge node and ground (output capacitance). The operation of the level-shifter is tested and verified by measurements on a prototype half-bridge gate driver. Results conclude stabile operation at 2.44kV, 50kHz with a current consumption of 0.5mA. Operation voltage was limited by test equipment. The output capacitance is 4pF@1.5kV.
Original languageEnglish
Title of host publicationProceedings of the International Power Modulator Symposium and High Voltage Workshop
PublisherIEEE
Publication date2012
Pages450-453
ISBN (Print)9781467312226
DOIs
Publication statusPublished - 2012
Event2012 IEEE International Power Modulator and High Voltage Conference - Hilton San Diego Bayfront, San Diego, CA, United States
Duration: 3 Jun 20127 Jun 2012

Conference

Conference2012 IEEE International Power Modulator and High Voltage Conference
LocationHilton San Diego Bayfront
CountryUnited States
CitySan Diego, CA
Period03/06/201207/06/2012

Keywords

  • Gate driver

Cite this

Andersen, T., Andersen, M. A. E., Thomsen, O. C., Foster, M. P., & Stone, D. A. (2012). A capacitive level shifter for high voltage (2.5kV). In Proceedings of the International Power Modulator Symposium and High Voltage Workshop (pp. 450-453). IEEE. https://doi.org/10.1109/IPMHVC.2012.6518777