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


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
Publication date2012
ISBN (Print)9781467312226
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


Conference2012 IEEE International Power Modulator and High Voltage Conference
LocationHilton San Diego Bayfront
CountryUnited States
CitySan Diego, CA


  • Gate driver


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