Patent ID: 7034472
Filing Date: 2006-04-25
Classification: H01J

Abstract:
1. A power supply apparatus for a traveling-wave tube for controlling application of voltages to said traveling-wave tube, comprising: an oscillator circuit for generating an oscillating signal at a frequency optionally selected from a plurality of frequencies; an inverter applied with the oscillating signal from said oscillator circuit to generate an AC voltage signal at the frequency of the oscillating signal; a transformer for transforming the AC voltage signal generated by said inverter disposed on a primary side to supply the resulting signal to a secondary side; a rectifier circuit disposed on the secondary side of said transformer for rectifying the AC voltage signal transformed by said transformer into a DC signal for application to said traveling-wave tube; a frequency detector circuit for detecting the frequency of the AC voltage signal applied from said transformer to said rectifier circuit to generate a device control signal for controlling the application of a voltage to an anode electrode of said traveling-wave tube in accordance with the frequency; and a control device for controlling the application of the voltage to the anode electrode of said traveling-wave tube in response to the device control signal.