JPS6172040U - - Google Patents
Info
- Publication number
- JPS6172040U JPS6172040U JP15523684U JP15523684U JPS6172040U JP S6172040 U JPS6172040 U JP S6172040U JP 15523684 U JP15523684 U JP 15523684U JP 15523684 U JP15523684 U JP 15523684U JP S6172040 U JPS6172040 U JP S6172040U
- Authority
- JP
- Japan
- Prior art keywords
- supply line
- voltage supply
- detection signal
- detection
- line
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 15
- 230000002159 abnormal effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の実施例を示す回路図である。
１……電源部、２……制御装置、３Ａ……正電
圧供給ライン、３Ｂ……負電圧供給ライン、３Ｃ
……共通ライン、ｒｙａ，ｒｙｂ……スイツチ部
としてのリレー接点、４……第１の検出部、５…
…第２の検出部、６……第３の検出部、７……第
４の検出部。
FIG. 1 is a circuit diagram showing an embodiment of the present invention. 1...Power supply unit, 2...Control device, 3A...Positive voltage supply line, 3B...Negative voltage supply line, 3C
... common line, rya, ryb ... relay contact as a switch section, 4 ... first detection section, 5 ...
... second detection section, 6 ... third detection section, 7 ... fourth detection section.
Claims (1)
る制御装置との間に各々設けられた正電圧供給ラ
イン、共通ライン及び負電圧供給ラインと、前記
正電圧供給ラインと共通ラインと共通ラインとの
間に夫々設けられ、正電圧供給ラインの電圧の異
常降下を検出して検出信号を出力する第１の検出
部及び正電圧供給ラインの電圧の異常上昇を検出
して検出信号を出力する第２の検出部と、前記負
電圧供給ラインと共通ラインとの間に夫々設けら
れ、負電圧供給ラインの電圧の異常降下を検出し
て検出信号を出力する第３の検出部及び負電圧供
給ラインの電圧の異常上昇を検出して検出信号を
出力する第４の検出部と、前記第１〜第４の検出
部のうちの少なくとも１つからの検出信号に基づ
いて正電圧供給ライン及び負電圧供給ラインをし
や断するスイツチ部とを有して成ることを特徴と
する制御装置の保護回路。 A positive voltage supply line, a common line, and a negative voltage supply line each provided between a power supply unit and a control device operated by voltage from the power supply unit, and the positive voltage supply line, the common line, and the common line. a first detection section that detects an abnormal drop in the voltage of the positive voltage supply line and outputs a detection signal; and a first detection section that detects an abnormal rise in the voltage of the positive voltage supply line and outputs a detection signal. a third detection section and a negative voltage supply line that are respectively provided between the second detection section and the negative voltage supply line and the common line, and that detect an abnormal drop in the voltage of the negative voltage supply line and output a detection signal; a fourth detection section that detects an abnormal rise in voltage and outputs a detection signal; and a positive voltage supply line and a negative voltage based on a detection signal from at least one of the first to fourth detection sections. 1. A protection circuit for a control device, comprising a switch section for cutting off a supply line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15523684U JPS6172040U (en) | 1984-10-15 | 1984-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15523684U JPS6172040U (en) | 1984-10-15 | 1984-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6172040U true JPS6172040U (en) | 1986-05-16 |
Family
ID=30713231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15523684U Pending JPS6172040U (en) | 1984-10-15 | 1984-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6172040U (en) |
-
1984
- 1984-10-15 JP JP15523684U patent/JPS6172040U/ja active Pending