JPS6288424U - - Google Patents
Info
- Publication number
- JPS6288424U JPS6288424U JP17856785U JP17856785U JPS6288424U JP S6288424 U JPS6288424 U JP S6288424U JP 17856785 U JP17856785 U JP 17856785U JP 17856785 U JP17856785 U JP 17856785U JP S6288424 U JPS6288424 U JP S6288424U
- Authority
- JP
- Japan
- Prior art keywords
- current limiting
- inrush
- switch
- control
- inrush current
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000009499 grossing Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 230000007257 malfunction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Power Conversion In General (AREA)
Description
第１図は本考案の原理ブロツク図、第２図は本
考案による一実施例の回路図、第３図は本考案に
よる各部の波形の説明図、第４図は従来のグロツ
ク図、第５図はシーケンスの説明図を示す。
図において、１は整流平滑ユニツト、２は信号
変換回路、３は制御部、４は電流検出器、５は入
力側、７は負荷側、６はＤＣ／ＤＣコンバータを
示す。
Fig. 1 is a principle block diagram of the present invention, Fig. 2 is a circuit diagram of an embodiment of the invention, Fig. 3 is an explanatory diagram of waveforms of various parts according to the invention, Fig. 4 is a conventional circuit diagram, and Fig. 5 is a diagram of the conventional circuit. The figure shows an explanatory diagram of the sequence. In the figure, 1 is a rectifier and smoothing unit, 2 is a signal conversion circuit, 3 is a control section, 4 is a current detector, 5 is an input side, 7 is a load side, and 6 is a DC/DC converter.
Claims (1)
つてクローズ、オープンされる第１のスイツチｒ
ｌ１と、電流の突入を制限する突入電流制限抵抗
Ｒと、該突入電流制限抵抗Ｒの短絡路を該制御部
３の制御によつて形成する第２のスイツチｒｌ２
とを介して整流平滑ユニツト１に接続され、該整
流平滑ユニツト１によつて整流されたＶ１のＤＣ
電源がＤＣ／ＤＣコンバータ６により、更にＶ２
のＤＣ電源に変換されて負荷側７に出力されるよ
うに形成された突入電流制限回路において、 前記第２のスイツチｒｌ１の誤動作を検出する
よう前記短絡路に流れる電流を検出する電流検出
器４と、 該電流検出器４からの検出信号Ｓ１をパルス信
号Ｓ２に変換して前記制御部３に送出する信号変
換回路２とが具備されたことを特徴とする突入電
流制限回路。[Claims for Utility Model Registration] A first switch r to which AC power from the input side 5 is closed and opened under the control of the control unit 3.
l1, an inrush current limiting resistor R that limits the inrush of current, and a second switch rl2 that forms a short circuit between the inrush current limiting resistor R under the control of the control section 3.
The DC of V1 is connected to the rectifying and smoothing unit 1 via
The power supply is further increased to V2 by the DC/DC converter 6.
In the inrush current limiting circuit configured to be converted into a DC power source and output to the load side 7, a current detector 4 detects the current flowing through the short circuit to detect malfunction of the second switch RL1. An inrush current limiting circuit comprising: a signal conversion circuit 2 that converts a detection signal S1 from the current detector 4 into a pulse signal S2 and sends it to the control section 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17856785U JPS6288424U (en) | 1985-11-20 | 1985-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17856785U JPS6288424U (en) | 1985-11-20 | 1985-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6288424U true JPS6288424U (en) | 1987-06-05 |
Family
ID=31120819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17856785U Pending JPS6288424U (en) | 1985-11-20 | 1985-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6288424U (en) |
-
1985
- 1985-11-20 JP JP17856785U patent/JPS6288424U/ja active Pending