Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
권호 표지
DOI QR코드

DOI QR Code

Current Source ZCS PFM DC-DC Converter for Magnetron Power Supply

  • Kwon, Soon-Kurl (Department of Electrical Engineering, Kyungnam University)
  • Published : 2009.07.31
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents the design of zero current switching ZCS pulse frequency modulation type DC-DC converter for magnetron power supply. A magnetron serving as the microwave source in a microwave oven is driven by a switch mode power supply (SMPS). SMPSs have the advantages of improved efficiency, reduced size and weight, regulation and the ability to operate directly from the converter DC bus. The demands of the load system and the design of the power supply required to produce constant power at 4[kV]. A magnetron power supply requires the ability to limit the load current under short circuit conditions. The current source series resonant converter is a circuit configuration which can achieve this. The main features of the proposed converter are an inherent protection against a short circuit at the output, a high voltage gain and zero current switching over a large range of output power. These characteristics make it a viable choice for the implementation of a high voltage magnetron power supply.

Keywords

References

  1. Magnetron power supply with indirect sensing of magnetron current, US Patent pp.55-78 March 26, 1991
  2. Issa Batarseh, Power Electronic Circuits, Wiley & Sons,PP.25-90, 2004
  3. Das, P.; Moschopoulos, G.; "A comparative study of zero-current transition PWM converters", Proceeding of IEEE APEC ’06, March 2006
  4. Fuentes, R.C.; Hey, H.L.; "A comparative analysis of the behavior and of the switching losses for a group of ZCS-PWM converters using IGBT’s", IEEE PESC ’97 Record. Vol. 2, pp: 972 - 977, June 1997.Proceeding of IEEE PESC ’95 Record., Vol. 2, pp:1265-1271, June 1995
  5. Canesin, C.A.; Barbi, I.; "Comparison of experimental losses among six different topologies for a 1.6[kW] boost converter, using IGBTs", Proceeding of IEEE PESC ’95 Record., Vol. 2, pp:1265-1271 , June 1995
  6. Barbi, I.; Bolacell, J.C.O.; Martins, D.C.; Libano, F.B.;" Buck quasi-resonant converter operating at constant frequency: analysis, design, and experimentation", Power Electronics, IEEE Transactions on, Volume 5, Issue 3, July 1990 Page(s):276-283 https://doi.org/10.1109/63.56518