JPS6238045U - - Google Patents
Info
- Publication number
- JPS6238045U JPS6238045U JP12801185U JP12801185U JPS6238045U JP S6238045 U JPS6238045 U JP S6238045U JP 12801185 U JP12801185 U JP 12801185U JP 12801185 U JP12801185 U JP 12801185U JP S6238045 U JPS6238045 U JP S6238045U
- Authority
- JP
- Japan
- Prior art keywords
- breaker
- trip coil
- whose
- voltage
- current trip
- 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
- 238000012544 monitoring process Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Keying Circuit Devices (AREA)
Description
第１図は本考案の過電圧、逆接続入力遮断回路
の一実施例の回路図、第２図は過電圧入力時のタ
イムチヤート、第３図は逆接続時のタイムチヤー
トである。
１……２連ブレーカ、２……ブレーカ電流トリ
ツプコイル、３……ブレーカ電圧トリツプコイル
、４……ＦＥＴ、５……ツエナーダイオード、６
……可変抵抗、７……ダイオード、９……正入力
端子、１０……負入力端子、１１……正出力端子
、１２……負出力端子、１３……実負荷、Ｖｉｎ
……入力電圧、Ｖ１……ブレーカ電圧トリツプコ
イル３の電圧、Ｖ２……ＦＥＴ４のドレイン電圧
、Ｖ３……定格電圧、ａ……入力電圧ノイズ、ｂ
……入力電圧過電圧部。
FIG. 1 is a circuit diagram of an embodiment of the overvoltage/reverse connection input cutoff circuit of the present invention, FIG. 2 is a time chart at the time of overvoltage input, and FIG. 3 is a time chart at the time of reverse connection. 1... Double breaker, 2... Breaker current trip coil, 3... Breaker voltage trip coil, 4... FET, 5... Zener diode, 6
...Variable resistor, 7...Diode, 9...Positive input terminal, 10...Negative input terminal, 11...Positive output terminal, 12...Negative output terminal, 13...Actual load, Vin
... Input voltage, V 1 ... Voltage of breaker voltage trip coil 3, V 2 ... Drain voltage of FET 4, V 3 ... Rated voltage, a ... Input voltage noise, b
...Input voltage overvoltage section.
Claims (1)
カと、 ブレーカの２次側正端子に設けられたブレーカ
電流トリツプコイルと、 ブレーカ電流トリツプコイルとブレーカの２次
側負端子の間に設けられ、可変抵抗および該可変
抵抗に直列に接続され、入力電圧が該可変抵抗に
より予め定められた電圧に達するとオンするツエ
ナーダイオードからなる監視回路と、 ブレーカ電流トリツプコイルの出力に一端が接
続されたブレーカ電圧トリツプコイルと、ドレイ
ンがブレーカ電圧トリツプコイルの他端に、ソー
スがブレーカの２次側負端子に、ゲートが可変抵
抗の摺動子に接続されたＦＥＴからなる負荷回路
と、 アノードがブレーカ電流トリツプコイルの出力
に、カソードが実負荷への出力端子に接続された
ダイオードを有する過電圧、逆接続入力遮断回路
。[Scope of claim for utility model registration] A double breaker that turns on/off both the positive and negative input voltage circuits, a breaker current trip coil installed at the secondary positive terminal of the breaker, and a breaker current trip coil and the secondary negative terminal of the breaker. A monitoring circuit is provided between the terminals and consists of a variable resistor and a Zener diode that is connected in series with the variable resistor and turns on when the input voltage reaches a voltage predetermined by the variable resistor, and a monitoring circuit that is connected to the output of the breaker current trip coil. A load circuit consisting of a breaker voltage trip coil connected at one end, a FET whose drain is connected to the other end of the breaker voltage trip coil, whose source is connected to the secondary negative terminal of the breaker, and whose gate is connected to a variable resistance slider; Overvoltage, reverse connection input cutoff circuit with a diode whose anode is connected to the output of the breaker current trip coil and whose cathode is connected to the output terminal to the actual load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12801185U JPH0348815Y2 (en) | 1985-08-21 | 1985-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12801185U JPH0348815Y2 (en) | 1985-08-21 | 1985-08-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6238045U true JPS6238045U (en) | 1987-03-06 |
| JPH0348815Y2 JPH0348815Y2 (en) | 1991-10-18 |
Family
ID=31023292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12801185U Expired JPH0348815Y2 (en) | 1985-08-21 | 1985-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348815Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0442924U (en) * | 1990-08-13 | 1992-04-13 | ||
| JP2009005535A (en) * | 2007-06-25 | 2009-01-08 | Fujitsu Telecom Networks Ltd | Power source protection circuit |
-
1985
- 1985-08-21 JP JP12801185U patent/JPH0348815Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0442924U (en) * | 1990-08-13 | 1992-04-13 | ||
| JP2009005535A (en) * | 2007-06-25 | 2009-01-08 | Fujitsu Telecom Networks Ltd | Power source protection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0348815Y2 (en) | 1991-10-18 |
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