JPS59113766U - DC current detection circuit - Google Patents
DC current detection circuitInfo
- Publication number
- JPS59113766U JPS59113766U JP694283U JP694283U JPS59113766U JP S59113766 U JPS59113766 U JP S59113766U JP 694283 U JP694283 U JP 694283U JP 694283 U JP694283 U JP 694283U JP S59113766 U JPS59113766 U JP S59113766U
- Authority
- JP
- Japan
- Prior art keywords
- current detection
- detection means
- circuit
- current
- detection circuit
- 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
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (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、従来の直流電流検出回路の一例を示す回路図
、第２図および第３図は第１図の回路の動作例を示す波
形チャート、第４図はこの考案による直流電流検出回路
の一実施例を示す回路図、第５図は第４図の回路の動作
例を示す波形チャート、第６図は他の実施例を示す回路
図である。 １・・・減算回路、２・・・磁電変換
素子、３・・・磁気面路、４・・・増幅器、■・・・被
検出回路の電流、Ｖｄ・・・□ 直流電流検出電圧、Ｒ
ｓ・・・シャント抵抗、ＣＴ・・・検流トランス、■・
・・電流目盛りを有する電圧計、Ｉａｃ・・・交流成分
、Ｌｌ、Ｌ２・・・コイル。
１
１ ”
一一一一−一−ｔｄ−−−−−一一Figure 1 is a circuit diagram showing an example of a conventional DC current detection circuit, Figures 2 and 3 are waveform charts showing an example of the operation of the circuit in Figure 1, and Figure 4 is a DC current detection circuit according to this invention. FIG. 5 is a waveform chart showing an example of the operation of the circuit of FIG. 4, and FIG. 6 is a circuit diagram showing another embodiment. 1... Subtraction circuit, 2... Magnetoelectric conversion element, 3... Magnetic surface path, 4... Amplifier, ■... Current of detected circuit, Vd...□ DC current detection voltage, R
s...Shunt resistance, CT...galvanic transformer, ■・
...Voltmeter with current scale, Iac...AC component, Ll, L2...coil. 1 1 ” 1111-1-td----11
Claims (3)
流検出手段と、上記回路に重畳して流れる交流電流成分
を抽出する第２の電流検出手段とを有し、この第２の電
流検出手段の検出出力によって上記第１の電流検出手段
の検出出力に含まれる交流電流成分を相殺するようにし
たことを特徴とする直流電流検出回路。(1) It has a first current detection means for detecting a direct current flowing in a circuit to be detected, and a second current detection means for extracting an alternating current component flowing superimposed on the circuit, A direct current detection circuit characterized in that an alternating current component included in the detection output of the first current detection means is canceled out by the detection output of the detection means.
て、第１の電流検出手段はシャント抵抗、第２の電流検
出手段は検流トランスであることを特徴とする直流電流
検出回路。(2) Utility Model Registration A DC current detection circuit according to claim (1), characterized in that the first current detection means is a shunt resistor, and the second current detection means is a galvanic transformer.
□第１の電流検出手段は上記被検出回路に流れる電流に
より生ずる磁束を検出する磁電変換素子であり、第２の
電流検出手段は上記磁束から交流成分を検出するコイル
であることを特徴とする直流電流検出回路。(3) In the circuit of claim (1) for utility model registration,
□The first current detection means is a magnetoelectric conversion element that detects magnetic flux generated by the current flowing through the detected circuit, and the second current detection means is a coil that detects an alternating current component from the magnetic flux. DC current detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP694283U JPS59113766U (en) | 1983-01-20 | 1983-01-20 | DC current detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP694283U JPS59113766U (en) | 1983-01-20 | 1983-01-20 | DC current detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59113766U true JPS59113766U (en) | 1984-08-01 |
Family
ID=30138482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP694283U Pending JPS59113766U (en) | 1983-01-20 | 1983-01-20 | DC current detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59113766U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09166626A (en) * | 1995-12-18 | 1997-06-24 | U R D:Kk | Sensor for detecting very small current superposed upon large alternating current |
| JP2015210272A (en) * | 2014-04-28 | 2015-11-24 | タイコ エレクトロニクス アンプ コリア カンパニーＴｙｃｏ Ｅｌｅｃｔｒｏｎｉｃｓ ＡＭＰ Ｋｏｒｅａ Ｃｏ．，Ｌｔｄ | Hybrid current sensor assembly |
-
1983
- 1983-01-20 JP JP694283U patent/JPS59113766U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09166626A (en) * | 1995-12-18 | 1997-06-24 | U R D:Kk | Sensor for detecting very small current superposed upon large alternating current |
| JP2015210272A (en) * | 2014-04-28 | 2015-11-24 | タイコ エレクトロニクス アンプ コリア カンパニーＴｙｃｏ Ｅｌｅｃｔｒｏｎｉｃｓ ＡＭＰ Ｋｏｒｅａ Ｃｏ．，Ｌｔｄ | Hybrid current sensor assembly |
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