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Performance Improvement of Power Control System for Driving MGT

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주제분류기계공학

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Abstract

This paper describes the performance improvement of power control system of magnetron(MGT) for microwave oven. The MGT is used extensively in household microwave oven and industrial microwave heating devices, and is operated by 3.0[kV]~5.0[kV] dc high voltage. The proposed power supply is consisted of a bridge rectifier, step-up converter(SUC) and its controller, half bridge inverter(HBI) and its controller, and full wave double voltage rectifier(DVR). In the proposed system, a good power factor can be obtained by the SUC' switching method that the inductor current waveforms follows that of the rectified voltage, and a line input power can be controlled to a range of 17.5[%] by duty ratio(DR) adjustment of the HBI.

참고문헌 (6)

  1. "A Study on the Development of a Power Supply for Driving Magnetron International journal of Maritime Information and Communication Sciences", 6, pp.744~746 (2002)
  2. "Development of Power Supply for Driving High Power Magnetron in a Microwave Oven", 5 no. 3, pp.300~306 (2000)
  3. "Series Resonant Full Bridge Inverter for Battery-fed Microwave oven", 7 no. 2, pp.165~170 (2002)
  4. "A Study on PFC of Active Clamp ZVS Flyback Converter Journal of the Korean Institite of Illuminating and Electrical Installation Engineers", 15 (2001)
  5. "Motorola analog IC device(mc34262) data", pp. 1-15, pp.1999~
  6. "Fairchild semiconductor application note 4107", pp.1~10 (2000)

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