JPS5832541U - Backup switching device - Google Patents
Backup switching deviceInfo
- Publication number
- JPS5832541U JPS5832541U JP12439481U JP12439481U JPS5832541U JP S5832541 U JPS5832541 U JP S5832541U JP 12439481 U JP12439481 U JP 12439481U JP 12439481 U JP12439481 U JP 12439481U JP S5832541 U JPS5832541 U JP S5832541U
- Authority
- JP
- Japan
- Prior art keywords
- backup
- turned
- switch
- limiting circuit
- switching device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Power Sources (AREA)
- Hardware Redundancy (AREA)
- Stand-By Power Supply Arrangements (AREA)
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
第１図は本考案の説明に供するバックアップ切換の一例
を示す回路図、第２図は本考案によるバックアップ切換
装置の一実施例を示す回路図、第３図は第２図の実施例
における電流制限回路の特性図である。
ＰＲＩ・・・・・・主装置、ＲＥＳ・・・・・・バック
アップ装置、ＬＤ・・・・・・負荷、ＩＣ・・・・・・
電流制限回路、Ｄ・・・・・・逆流防止ダイオード、Ｒ
Ｌ・・・・・・リレー、ｒｌａ、 ｒｌｂ・・・・・・
リレー接点、Ｒ・・・・・・抵抗。FIG. 1 is a circuit diagram showing an example of a backup switching device for explaining the present invention, FIG. 2 is a circuit diagram showing an embodiment of a backup switching device according to the present invention, and FIG. 3 is a current flow diagram in the embodiment of FIG. 2. FIG. 3 is a characteristic diagram of a limiting circuit. PRI...Main device, RES...Backup device, LD...Load, IC...
Current limiting circuit, D...Reverse current prevention diode, R
L...Relay, rla, rlb...
Relay contact, R...Resistance.
Claims (1)
がディジタル出力信号であるバックアップ装置が代って
負荷に出力を送出すべく切換えるためのバックアップ切
換装置において、前記主装置の出力端と前記負荷との間
に電流制限回路と逆流防止ダイオードを直列接続して設
け、この電流制限回路と逆流防止ダイオードの接続点に
バックアップ時のみオンする第１のスイッチを介してバ
イアスを与えると共に、前記第１のスイッチのオンと同
時にバックアップ時のみオンする第２のスイッチを介し
て前記バックアップ装置の出力端を前記負荷に接続する
ようになし、前記第１および第２の両スイッチはバック
アップ時のみ励磁されるリレーによりオンするように開
閉制御されることを特徴とするバックアップ切換装置。In a backup switching device for switching a backup device whose output is a digital output signal to send an output to a load instead of the main device when the main device whose output is a digital output signal fails, the output terminal of the main device and the load are connected. A current limiting circuit and a reverse current prevention diode are connected in series between the current limiting circuit and the reverse current preventing diode, and a bias is applied to the connection point between the current limiting circuit and the reverse current preventing diode through a first switch that is turned on only during backup. The output end of the backup device is connected to the load via a second switch that is turned on only during backup at the same time as the switch is turned on, and both the first and second switches are relays that are energized only during backup. A backup switching device characterized in that it is controlled to open and close so as to turn on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12439481U JPS5832541U (en) | 1981-08-22 | 1981-08-22 | Backup switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12439481U JPS5832541U (en) | 1981-08-22 | 1981-08-22 | Backup switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5832541U true JPS5832541U (en) | 1983-03-03 |
| JPS6132439Y2 JPS6132439Y2 (en) | 1986-09-20 |
Family
ID=29918260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12439481U Granted JPS5832541U (en) | 1981-08-22 | 1981-08-22 | Backup switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832541U (en) |
-
1981
- 1981-08-22 JP JP12439481U patent/JPS5832541U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6132439Y2 (en) | 1986-09-20 |
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