JPH0267607U - - Google Patents
Info
- Publication number
- JPH0267607U JPH0267607U JP14635388U JP14635388U JPH0267607U JP H0267607 U JPH0267607 U JP H0267607U JP 14635388 U JP14635388 U JP 14635388U JP 14635388 U JP14635388 U JP 14635388U JP H0267607 U JPH0267607 U JP H0267607U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- conversion element
- core device
- magneto
- switching means
- 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
- 238000004804 winding Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims 3
- 230000004907 flux Effects 0.000 claims 2
- 230000005669 field effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measuring Magnetic Variables (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
第１図はこの考案の一実施例を示すブロツク線
図、第２図ａ，ｂ，ｃおよびｄは第１図の交流発
振器、直流検波器、ＦＥＴの各出力および消磁回
路のループゲインを説明するための波形図、第３
図は従来の磁気コア装置の消磁回路の一例を示す
ブロツク線図である。
図面において、１は磁気コア、３はホール素子
、４は一次巻線、５は帰還巻線、６は定電流電源
、７は差動増幅器７、８は電力増幅器、９は交流
発振器、１０は出力端子、１１は基準抵抗、２１
はＦＥＴ、２２は直流検波器である。
Figure 1 is a block diagram showing one embodiment of this invention, and Figures 2 a, b, c, and d illustrate the outputs of the AC oscillator, DC detector, FET, and loop gain of the degaussing circuit in Figure 1. Waveform diagram for
The figure is a block diagram showing an example of a degaussing circuit of a conventional magnetic core device. In the drawing, 1 is a magnetic core, 3 is a Hall element, 4 is a primary winding, 5 is a feedback winding, 6 is a constant current power supply, 7 is a differential amplifier 7, 8 is a power amplifier, 9 is an AC oscillator, and 10 is a Output terminal, 11 is reference resistance, 21
is an FET, and 22 is a DC detector.
Claims (1)
換する磁電変換素子と、前記磁気コアに発生する
磁束を打ち消すための電気信号が印加される前記
磁気コア上に設けられた帰還巻線とを有する磁気
コア装置において、消磁用の交流信号源と、この
交流信号源からの出力により前記磁電変換素子に
対する電源を切り、前記交流信号源が動作してい
ない時は前記磁電変換素子に前記電源を接続する
ように自動的に切換わるスイツチング手段とを備
え、前記交流信号源は前記帰還巻線に電流を印加
するように接続されていることを特徴とする磁気
コア装置の消磁回路。 (2) 前記スイツチング手段は電界効果トランジ
スタのような無接点スイツチで構成されているこ
とを特徴とする請求項１に記載の磁気コア装置の
消磁回路。[Claims for Utility Model Registration] (1) A magneto-electric conversion element that converts magnetic flux induced in a magnetic core into an electrical signal, and a magneto-electric conversion element on the magnetic core to which an electrical signal is applied to cancel the magnetic flux generated in the magnetic core. In a magnetic core device having a feedback winding provided at a switching means that automatically switches to connect the power supply to the magnetoelectric conversion element, and the AC signal source is connected to apply a current to the feedback winding. Core device degaussing circuit. (2) The degaussing circuit for a magnetic core device according to claim 1, wherein the switching means is constituted by a non-contact switch such as a field effect transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14635388U JPH0427138Y2 (en) | 1988-11-09 | 1988-11-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14635388U JPH0427138Y2 (en) | 1988-11-09 | 1988-11-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0267607U true JPH0267607U (en) | 1990-05-22 |
| JPH0427138Y2 JPH0427138Y2 (en) | 1992-06-30 |
Family
ID=31415760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14635388U Expired JPH0427138Y2 (en) | 1988-11-09 | 1988-11-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0427138Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05227782A (en) * | 1992-02-14 | 1993-09-03 | Sankyo Seiki Mfg Co Ltd | Motor controller |
-
1988
- 1988-11-09 JP JP14635388U patent/JPH0427138Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05227782A (en) * | 1992-02-14 | 1993-09-03 | Sankyo Seiki Mfg Co Ltd | Motor controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0427138Y2 (en) | 1992-06-30 |
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