JPS632359U

JPS632359U -

Info

Publication number: JPS632359U
Application number: JP9406486U
Authority: JP
Priority date: 1986-06-20
Filing date: 1986-06-20
Publication date: 1988-01-08

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す構成図、第
２図はグリツドパルスコントロール部、ボデイ電
流検出回路、コレクタ電流検出回路、最適カソー
ド電流設定回路および比較検出回路の一実施例を
示す構成図、第３図は従来のＴＷＴ作動装置の構
成図である。図において１はＴＷＴ、２はヒータ電源、３は
コレクタ電源、４はボデイ電源、５はグリツドパ
ルサー回路、６はグリツドパルスコントロール部
、７はボデイ電流検出回路、８はコレクタ電流検
出回路、９は最適カソード電流設定回路、１０は
比較検出回路、１１はボデイ電流入力、１２はボ
デイ電流を電圧値に算出する固定抵抗器、１３Ａ
〜１３Ｈはブツフアアンプ、１４Ａ〜１４Ｂはゲ
ート作成回路、１５Ａ〜１５ＢはＳ／Ｈ（サクプ
ルホールド）回路、１６はコレクタ電源入力、１
７はコレクタ電流を検出し電圧値に算出するカレ
ントトランス、１８Ａ〜１８Ｂは加算器、１９は
比較検出回路、２０Ａは最適カソード電流値を設
定する可変抵抗器、２０Ｂは予めグリツドパルス
電圧を設定する可変抵抗器、２１はグリツドパル
スコントロール信号である。なお、図中同一或い
は相当部分には同一符号を付してある。 Fig. 1 is a block diagram showing an embodiment of this invention, and Fig. 2 shows an embodiment of the grid pulse control section, body current detection circuit, collector current detection circuit, optimum cathode current setting circuit, and comparison detection circuit. Block diagram, FIG. 3 is a block diagram of a conventional TWT actuating device. In the figure, 1 is a TWT, 2 is a heater power supply, 3 is a collector power supply, 4 is a body power supply, 5 is a grid pulser circuit, 6 is a grid pulse control section, 7 is a body current detection circuit, 8 is a collector current detection circuit, 9 is an optimum cathode current setting circuit, 10 is a comparison detection circuit, 11 is a body current input, 12 is a fixed resistor that calculates the body current into a voltage value, 13A
~13H is a buffer amplifier, 14A~14B is a gate creation circuit, 15A~15B is an S/H (sample hold) circuit, 16 is a collector power input, 1
7 is a current transformer that detects the collector current and calculates it to a voltage value, 18A to 18B are adders, 19 is a comparison detection circuit, 20A is a variable resistor that sets the optimum cathode current value, and 20B is a variable that sets the grid pulse voltage in advance. Resistor 21 is a grid pulse control signal. Note that the same or corresponding parts in the figures are given the same reference numerals.

Claims

[Scope of utility model registration request]

In a traveling wave tube operating device that operates a traveling wave tube, which is one of the sources of high frequency and high power generation, there is a heater power source that supplies heater voltage to a heater that warms the electron gun part of the traveling wave tube, and a collector of the traveling wave tube. a collector power supply that supplies collector voltage; a body power supply that supplies cathode voltage to the cathode of the traveling wave tube; a grid pulser circuit that supplies bias voltage and grid pulse voltage to the grid of the traveling wave tube; a body current detection circuit that detects the flowing body current; a collector current detection circuit that detects the collector current flowing to the collector power supply; an optimal cathode current setting circuit for optimal operation of the traveling wave tube set in advance; A comparison detection circuit that compares and detects the signal obtained from the body current detection circuit, the signal obtained from the collector current detection circuit, and the signal set by the optimum cathode current setting circuit, and the comparison detection circuit uses the comparison detection circuit. and a grid pulse control section that controls the grid pulse voltage of the grid pulser circuit based on the detected signal, and the traveling wave tube is controlled so that the traveling wave tube always operates at an optimum cathode current. Actuation device.