Journal article
Design of a 300-Watt Isolated Power Supply for Ultra-Fast Tracking Converters
This paper presents the design of a medium-powerrating isolated power supply for ultra-fast tracking converters and MOS-gate driver circuits in medium and high voltage applications. The key feature of the design is its very low circuit input-to-output parasitic capacitance, which maximizes its noise immunity from noise due to fast changes in voltage.
The converter is a voltage-controlled current source, utilizing a transformer with extremely low inter-winding parasitic capacitance, which is achieved by separating the windings by a significant distance. Experimental measurements show that an overall circuit input-to-output parasitic capacitance of 10 pF in a 300 W prototype can be achieved.
The circuit input-to-output capacitance per watt is therefore 30 times lower than that of existing approaches. A mathematical model of the inter-winding capacitance of the proposed transformer, circuit analysis, and experimental results are provided to prove the feasibility of the converter.
Language: | English |
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Publisher: | IEEE |
Year: | 2015 |
Pages: | 3319-3333 |
ISSN: | 08858993 and 19410107 |
Types: | Journal article |
DOI: | 10.1109/TPEL.2014.2338834 |
ORCIDs: | Ouyang, Ziwei , Petersen, Lars Press , Knott, Arnold and Andersen, Michael A. E. |
Current transformers Dc-dc power converters Parasitic capacitance Stacking Switching converters