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The mechanism of common-mode noise current in control and gate-drive circuits on a chopper circuit is discussed. For high power density configurations, common-mode noise current flows not only in the main circuit, but also in the control and gate-drive circuits. This noise current increases the risk of control circuit misoperation, and might flow out from control and gate-drive circuits and interfere...
A magnetron with a metallic cathode shield on the high voltage (HV) input side is newly designed for the purpose of reducing spurious noises generated from an oven magnetron. We experimentally found that the newly-designed magnetron suppressed sideband noises around the carrier frequency up to -10dB compared to the conventional magnetron. Moreover, both spurious noises in high frequency bands (4GHz~14GHz)...
A magnetron with a metallic cathode shield on the high-voltage (HV) input side is newly designed for the purpose of reducing the spurious noise generated from an oven magnetron. In this paper, it was experimentally found that the newly designed magnetron suppressed the sideband noise around the carrier frequency up to 10 dB, compared to the conventional magnetron. Moreover, both the spurious noise...
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