[KSCI] Korea Science Citation Index Service

Performance Improvement of Power Control System for Driving MGT

Lee Sung-Geun (Division of Electrical and Electronics Engineering, Korea Maritime University)

Publication Information

Journal of Advanced Marine Engineering and Technology / v.29, no.7, 2005 , pp. 744-749 More about this Journal

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.

Keywords

Magnetron; Microwave oven; Step-up converter; Power factor;

Citations & Related Records

Reference

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