Abstract
A novel high frequency high voltage (HV) generator circuit with air-core transformer is proposed in this paper to achieve high power density packaging structure and compact size advantages. Planar multi-layer printed circuit board(PCB) winding and litz wire wound winding structure are investigated for air-core HV transformer. The electrical design of air-core HV transformer with HV multiplier circuit based on 1.2kV SiC Schottky diode are introduced. A with 450 kHz switching frequency HV generator prototype with 310W output power and 1kV output voltage is built in lab. The litz wire air-core HV transformer prototype is built to compare the efficiency, thermal performance and size with planar air-core HV transformer. The planar PCB air-core transformer based on HV generator can achieve 80.5% efficiency and 1.09kW/L power density. The litz wire wounded transformer based HV generator provide 89.0% efficiency and around 0.53kW/L power density. The design with planar PCB air-core transformer enable high voltage generation circuit system compact planar packaging. The design with litz wire air-core HV transformer behaves higher efficiency and thermal performance with low high frequency AC winding loss.
Original language | English |
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Title of host publication | 2017 IEEE International Workshop on Integrated Power Packaging, IWIPP 2017 |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 1-5 |
Number of pages | 5 |
ISBN (Electronic) | 978-1-5090-4278-4 |
DOIs | |
Publication status | Published - Apr 2017 |
Event | International Workshop on Integrated Power Packaging 2017, IWIPP 2017 - Delft, Netherlands Duration: 5 Apr 2017 → 7 Apr 2017 http://iwipp.org/ |
Workshop
Workshop | International Workshop on Integrated Power Packaging 2017, IWIPP 2017 |
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Abbreviated title | IWIPP 2017 |
Country/Territory | Netherlands |
City | Delft |
Period | 5/04/17 → 7/04/17 |
Internet address |
Keywords
- air-core transformer
- High frequency
- high voltage generator
- litz wire wounded transformer
- planar transformer