JPS59115356U - current detection device - Google Patents
current detection deviceInfo
- Publication number
- JPS59115356U JPS59115356U JP894983U JP894983U JPS59115356U JP S59115356 U JPS59115356 U JP S59115356U JP 894983 U JP894983 U JP 894983U JP 894983 U JP894983 U JP 894983U JP S59115356 U JPS59115356 U JP S59115356U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- duty
- current
- detection device
- detected
- 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
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図は本考案の一実施例の回路図、第２図〜第７図は
第１図に示される回路の動作を説明するための信号の波
形図、第８図は第１図におけるローパスフィルタ回路７
ａの他の実施例のローパスフィルタ回路７ｂの回路図で
ある。
１・・・電流検出装置、４・・・磁気マルチバイブレー
タ回路、５．６・・・デユーティ検出回路、７・・・差
動増幅回路、７ａ、７ｂ・・・ローパスフィルタ回路、
ト・・レベル弁別回路、９・・・応動回路、３１．３２
・・・ライン、４０・・・抵Ｌ ４１・・・可飽和リア
クトル、 ４４・・・２次コイル、４５・・・３次
コイル、４０１゜４０２・・・高周波発振検出回路。
第５図
（１）−−Ｎ−−−−−−心、
（２） ・１１ｊFig. 1 is a circuit diagram of an embodiment of the present invention, Figs. 2 to 7 are signal waveform diagrams for explaining the operation of the circuit shown in Fig. 1, and Fig. 8 is a low-pass diagram in Fig. 1. Filter circuit 7
FIG. 7 is a circuit diagram of a low-pass filter circuit 7b according to another embodiment of FIG. DESCRIPTION OF SYMBOLS 1... Current detection device, 4... Magnetic multivibrator circuit, 5.6... Duty detection circuit, 7... Differential amplifier circuit, 7a, 7b... Low pass filter circuit,
G... Level discrimination circuit, 9... Response circuit, 31.32
...Line, 40...Resistor L 41...Saturable reactor, 44...Secondary coil, 45...Tertiary coil, 401°402...High frequency oscillation detection circuit. Figure 5 (1) --N------heart, (2) ・11j
Claims (1)
けられるとともに被検出電流を検出するための２次およ
び３次コイルを有する可飽和リアクトル、２次および３
次コイルに流れる電流を検出するための抵抗、ならびに
被検出電流に応じて予め定める周期のデユーティを支え
て発振するマルチバイブレータ回路により磁気マルチバ
イブレータ回路を形成し、磁気マルチバイブレータ回路
からの互に反転した各信号のデユーティをそれぞれ検出
するための一対のデユーティ検出回路を設け、各デユー
ティ検出回路からのデユーティに対応した出力の相互の
差を検出する差動増幅回路の出力をローパスフィルタ回
路を介してレベル弁別して弁別レベルを超えたときに応
動回路を動作させるようにしたことを特徴とする電流検
出装置。A saturable reactor, secondary and tertiary, which is provided in connection with a line through which a current to be detected flows and has a secondary and tertiary coil for detecting the current to be detected.
Next, a magnetic multivibrator circuit is formed by a resistor for detecting the current flowing in the coil and a multivibrator circuit that oscillates while supporting a duty with a predetermined period according to the detected current. A pair of duty detection circuits are provided to detect the duty of each signal, and the output of a differential amplifier circuit that detects the difference between the outputs corresponding to the duty from each duty detection circuit is passed through a low-pass filter circuit. A current detection device characterized in that a current detection device performs level discrimination and operates a response circuit when the discrimination level is exceeded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP894983U JPS59115356U (en) | 1983-01-24 | 1983-01-24 | current detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP894983U JPS59115356U (en) | 1983-01-24 | 1983-01-24 | current detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59115356U true JPS59115356U (en) | 1984-08-03 |
Family
ID=30140432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP894983U Pending JPS59115356U (en) | 1983-01-24 | 1983-01-24 | current detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59115356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018044947A (en) * | 2016-09-14 | 2018-03-22 | 台達電子工業股▲ふん▼有限公司Ｄｅｌｔａ Ｅｌｅｃｔｒｏｎｉｃｓ，Ｉｎｃ． | Current detector and method of operation of the detector |
-
1983
- 1983-01-24 JP JP894983U patent/JPS59115356U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018044947A (en) * | 2016-09-14 | 2018-03-22 | 台達電子工業股▲ふん▼有限公司Ｄｅｌｔａ Ｅｌｅｃｔｒｏｎｉｃｓ，Ｉｎｃ． | Current detector and method of operation of the detector |
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