JPH01180142U - - Google Patents
Info
- Publication number
- JPH01180142U JPH01180142U JP7621488U JP7621488U JPH01180142U JP H01180142 U JPH01180142 U JP H01180142U JP 7621488 U JP7621488 U JP 7621488U JP 7621488 U JP7621488 U JP 7621488U JP H01180142 U JPH01180142 U JP H01180142U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- converter
- detection part
- break signal
- overcurrent
- 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 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
- Rectifiers (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図は従来のＡＣ―ＤＣコンバータの保護回路のブ
ロツク図である。
１……ＡＣ―ＤＣコンバータ、２，５，６……
回路しや断器、３……検出部、４……フイルタ回
路、７……回路しや断信号送出部、８，９……Ａ
Ｃ―ＤＣコンバータの保護回路。
Figure 1 is a block diagram of one embodiment of the present invention, Figure 2 is a block diagram of an embodiment of the present invention.
The figure is a block diagram of a conventional AC-DC converter protection circuit. 1...AC-DC converter, 2, 5, 6...
Circuit breaker, 3...Detection unit, 4...Filter circuit, 7...Circuit break signal sending unit, 8, 9...A
Protection circuit for C-DC converter.
Claims (1)
記ＡＣ―ＤＣコンバータの入力側に設けられ過電
流を検出すると回路の切断を行う第１の回路しや
断器と、その第１の回路しや断器が回路を閉じた
ことを機械的に検出し接点を閉じる検出部と、そ
の検出部の接点の閉じたことを電気的に知り継電
器を復旧させることにより外部に対する回路しや
断信号の送出を中止する回路しや断信号送出部と
、前記ＡＣ―ＤＣコンバータの出力側に設けられ
過電流を検出すると回路の切断を行うと共に前記
第１の回路しや断器が回路を開いていることを前
記回路しや断信号を受信することで知ると常に回
路を切断状態とする第２の回路しや断器とを有す
ることを特徴とするＡＣ―ＤＣコンバータの保護
回路。 In a protection circuit for an AC-DC converter, a first circuit breaker is provided on the input side of the AC-DC converter and disconnects the circuit when an overcurrent is detected; A detection part that mechanically detects that the circuit is closed and closes the contact, and a detection part that electrically knows that the contact of the detection part is closed and restores the relay to stop sending the circuit break signal to the outside. A circuit break signal sending section is provided on the output side of the AC-DC converter, and when an overcurrent is detected, the circuit is disconnected, and the first circuit break signal is connected to the circuit to indicate that the circuit is open. 1. A protection circuit for an AC-DC converter, comprising a second circuit disconnector that always disconnects the circuit when it is determined by receiving a disconnection signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7621488U JPH01180142U (en) | 1988-06-07 | 1988-06-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7621488U JPH01180142U (en) | 1988-06-07 | 1988-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01180142U true JPH01180142U (en) | 1989-12-25 |
Family
ID=31301255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7621488U Pending JPH01180142U (en) | 1988-06-07 | 1988-06-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01180142U (en) |
-
1988
- 1988-06-07 JP JP7621488U patent/JPH01180142U/ja active Pending
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