Patent ID: 6044001
Filing Date: 2000-03-28
Classification: H01J,H02M

Abstract:
A control circuit for a power supply for at least one traveling wave tube having a cathode, at least one collector, and an independent anode, said control circuit for controlling a cathode current, said control circuit comprising:a cathode voltage at said cathode of said at least one traveling wave tube, said cathode voltage being a constant voltage generated by said power supply;a collector voltage at said at least one collector of said at least one traveling wave tube, said collector voltage generated by said power supply;a regulated anode voltage at said independent anode, said regulated anode voltage generated by said power supply and further comprising:a voltage regulator;a step up voltage generator tied to said voltage regulator, said step up voltage generator having first and second outputs, said first output of said step up voltage generator tied to said independent anode of said at least one traveling wave tube, said second output of said step up voltage generator tied to said cathode for generating a voltage to said independent anode that is variable from said independent anode voltage to said cathode voltage;whereby said cathode current is controlled by varying said anode voltage.