Design of a 300-Watt Isolated Power Supply with Minimized Circuit Input-to-Output Parasitic Capacitance

Khiem Nguyen-Duy, Lars Press Petersen, Arnold Knott, Ole Cornelius Thomsen, Michael A. E. Andersen

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Abstract

This paper presents the design of a 300-Watt isolated power supply for MOS gate driver circuit in medium and high voltage applications. The key feature of the developed power supply is having a very low circuit input-to-output parasitic capacitance, thus maximizing its noise immunity. This makes it suitable for modular stacking applications. The converter is a voltage-controlled current source, utilizing a transformer
that has an extremely low inter-winding parasitic capacitance. The experiments show that an overall circuit input-to-output parasitic capacitance of 10 pF can be achieved. Design analysis and experimental results are provided to prove the feasibility of the converter.
Original languageEnglish
Title of host publicationProceedings of the 7th IET international conference on power electronics, machines and drives PEMD 2014
Number of pages6
PublisherIEEE
Publication date2014
ISBN (Electronic)978-1-84919-815-8
DOIs
Publication statusPublished - 2014
Event7th IET international conference on Power Electronics, Machines and Drives - Midland Hotel, Manchester, United Kingdom
Duration: 8 Apr 201410 Apr 2014

Conference

Conference7th IET international conference on Power Electronics, Machines and Drives
LocationMidland Hotel
Country/TerritoryUnited Kingdom
CityManchester
Period08/04/201410/04/2014

Keywords

  • Current transformers
  • Parasitic capacitance
  • Switching converters
  • Stacking
  • dc-dc power converters

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