JPS58180474U - Load current detection device - Google Patents
Load current detection deviceInfo
- Publication number
- JPS58180474U JPS58180474U JP7868582U JP7868582U JPS58180474U JP S58180474 U JPS58180474 U JP S58180474U JP 7868582 U JP7868582 U JP 7868582U JP 7868582 U JP7868582 U JP 7868582U JP S58180474 U JPS58180474 U JP S58180474U
- Authority
- JP
- Japan
- Prior art keywords
- load current
- current detection
- relay
- detection device
- voltage
- 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
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Measurement Of Current Or Voltage (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図は従来の負荷電流検知装置および圧縮機モータ回
路の一例を示す電気回路の構成図、第２図はリレーの磁
気回路のＢ−１−Ｈ特性曲線図、第３図はこの考案の一
実施例を示す電気回路の構成図、第４図は第３図を具体
的に示す構成図、第５図は同実施例に用いられるリレー
の具体例を示す概略構成図である。
１・・・圧縮機モータ（負荷）、２・・・リレー、２ａ
・・・接点、２Ｃ・・・励磁コイル、２０・・・増幅回
路。Fig. 1 is a configuration diagram of an electric circuit showing an example of a conventional load current detection device and compressor motor circuit, Fig. 2 is a B-1-H characteristic curve diagram of a magnetic circuit of a relay, and Fig. 3 is a diagram of a B-1-H characteristic curve of a relay magnetic circuit. FIG. 4 is a block diagram specifically showing the configuration of FIG. 3, and FIG. 5 is a schematic block diagram showing a specific example of a relay used in the same embodiment. 1... Compressor motor (load), 2... Relay, 2a
...Contact, 2C...Excitation coil, 20...Amplification circuit.
Claims (1)
前記リレーとこのリレーの接点回路に流れる負荷電流に
よって誘起する電圧を取出す手段と、この手段により取
出される電圧を前記リレーに対する駆動電圧のレベルに
応じた増幅度で増幅する増幅回路とを具備し、この増幅
回路の出力電圧を負荷電流検知信号とすることを特徴と
する負荷電流検知装置。In those that control energization to loads using relays,
The relay includes means for extracting a voltage induced by a load current flowing through the relay and a contact circuit of the relay, and an amplifier circuit for amplifying the voltage extracted by the means with an amplification degree corresponding to the level of the drive voltage for the relay. A load current detection device characterized in that the output voltage of this amplifier circuit is used as a load current detection signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7868582U JPS58180474U (en) | 1982-05-28 | 1982-05-28 | Load current detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7868582U JPS58180474U (en) | 1982-05-28 | 1982-05-28 | Load current detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58180474U true JPS58180474U (en) | 1983-12-02 |
| JPH0240540Y2 JPH0240540Y2 (en) | 1990-10-29 |
Family
ID=30087891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7868582U Granted JPS58180474U (en) | 1982-05-28 | 1982-05-28 | Load current detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58180474U (en) |
-
1982
- 1982-05-28 JP JP7868582U patent/JPS58180474U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0240540Y2 (en) | 1990-10-29 |
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