JPS58174759U

JPS58174759U - 2 out of 3 redundant circuit system

Info

Publication number: JPS58174759U
Application number: JP7108782U
Authority: JP
Inventors: 工藤　正数
Original assignee: 日本電気株式会社
Priority date: 1982-05-14
Filing date: 1982-05-14
Publication date: 1983-11-22
Also published as: JPS6142190Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の２アウト・オブ３の冗長回路方式を示す
回路図、第２図は本考案による冗長回路方式の一実施例
を示す回路図、第３図は本回路の応用例を示す図である
。ＩＣ工〜■Ｃ３・・・・・・演算増幅器、Ｄ１〜Ｄ９・
・・・・・ダイオード、Ｑ□〜Ｑ６・・・・・・トラン
ジスタ、１〜３・・・・・・入力端子、４．５・・・・
・・出力端子、６・・・・・・センサ、７・・・・・・
冗長回路、８・・・・・・制御器、９．９ａ、　９ｂ。９Ｃ・・・・・・制御対象物。Figure 1 is a circuit diagram showing a conventional 2-out-of-3 redundant circuit system, Figure 2 is a circuit diagram showing an embodiment of the redundant circuit system according to the present invention, and Figure 3 is an example of application of this circuit. It is a diagram. IC engineering ~■C3...Operation amplifier, D1~D9・
...Diode, Q□~Q6...Transistor, 1-3...Input terminal, 4.5...
...Output terminal, 6...Sensor, 7...
Redundant circuit, 8...Controller, 9.9a, 9b. 9C... Controlled object.

Claims

[Scope of utility model registration request]

A first circuit that receives the first, second, and third detection signals as inputs, respectively.
, second and third detectors, and first, second and third transistor cascade circuits each having two transistors connected in cascade are connected in parallel, and each of the first and second transistor cascade circuits is connected in parallel. A first power section connected between the bases of one transistor, a second power section connected between the base of the other transistor of the first transistor cascade circuit and the base of one transistor of the third transistor cascade circuit, and a 2-out-of-3 circuit having a third power section connected between the base of the other transistor of the transistor cascade circuit and the other base of the third transistor cascade circuit; and the first detector output and the first transistor cascade circuit. a first diode connected in a reverse direction between the human power section, a second diode connected in a forward direction between the second detector output and the first human power section, and a third detector output and the first diode connected in a forward direction; a third diode connected in a forward direction between the first human power section; and a fourth diode connected in a reverse direction between the second detector output and the second human power section;
a fifth diode connected in a forward direction between the third detector output and the second human power section; and a sixth diode connected in a forward direction between the first detector output and the second human power section. a seventh diode connected in a reverse direction between the third detector and the third human power section, and a seventh diode connected in the forward direction between the first detector and the third human power section. A 2-out-of-3 redundant circuit system comprising an eighth diode and a ninth diode connected in a forward direction between the second detector output and the third human power section.