Accession Number : ADD012376

Title :   Unique Mechanization to Fault Isolate Failures of an Electron Tube Radio Frequency (RF) Amplifier and Its High Voltage Power Supply.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Miller,Daniel G

Report Date : 04 Mar 1986

Pagination or Media Count : 11

Abstract : An electronics circuit for improving the fault isolation of failures between an electron tube radio frequency (RF) amplifier and its high voltage power supply is disclosed. High voltage power supplies control their output voltage by comparing a feedback voltage against a reference. This comparison is used to develop an error voltage which, in turn, drives a pulsewidth modulator that corrects the feedback voltage to the reference. The output of a digital-to-analog converter (DAC) is used as the reference voltage. The DAC is driven by a counter which would count to the correct reference voltage represented by a specific count. The final count is determined by a comparator which compares the counter output to the desired final counter and stopps the counter when it is reached. (Patent Applications)

Descriptors :   *ELECTRONICS, *FEEDBACK, *POWER SUPPLIES, *ELECTRON TUBES, *PATENT APPLICATIONS, DIGITAL TO ANALOG CONVERTERS, CIRCUITS, VOLTAGE, HIGH VOLTAGE, OUTPUT, RADIOFREQUENCY, ERRORS, COUNTING METHODS, FAULTS, MECHANIZATION

Subject Categories : Electrical and Electronic Equipment
      Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE