JPH0253292U - - Google Patents
Info
- Publication number
- JPH0253292U JPH0253292U JP1988131610U JP13161088U JPH0253292U JP H0253292 U JPH0253292 U JP H0253292U JP 1988131610 U JP1988131610 U JP 1988131610U JP 13161088 U JP13161088 U JP 13161088U JP H0253292 U JPH0253292 U JP H0253292U
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- forming means
- position detection
- motor
- magnetic sensor
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
第１図は本考案に係るモータの回転位置検出装
置の検出部の回路図、第２図は第５Ｂ図の放電波
形の拡大波形図、第３図は回転位置検出装置の説
明図、第４図は従来の検出部の回路図、第５Ａ図
はコイル４に生じる起電力の出力波形図、第５Ｂ
図はモノマルチバイブレータに入力される直前の
（第１図Ａにおける）出力波形図、第５Ｃ図はモ
ノマルチバイブレータによつて形成されるパルス
の波形図、第６図は本考案に従つた場合における
第５Ｂ図の放電波形の拡大図である。
１…回転部材（ロータ）、２…磁極、４…コイ
ル、５…コア、７…比較回路、８…モノマルチバ
イブレータ、９…コンデンサ、１０…抵抗。
Fig. 1 is a circuit diagram of the detection unit of the motor rotational position detection device according to the present invention, Fig. 2 is an enlarged waveform diagram of the discharge waveform in Fig. 5B, Fig. 3 is an explanatory diagram of the rotational position detection device, and Fig. 4 The figure is a circuit diagram of a conventional detection unit, Figure 5A is an output waveform diagram of the electromotive force generated in the coil 4, and Figure 5B is a diagram of the output waveform of the electromotive force generated in the coil 4.
The figure is a diagram of the output waveform (in Figure 1A) immediately before being input to the mono-multivibrator, Figure 5C is a waveform diagram of the pulse formed by the mono-multivibrator, and Figure 6 is the case according to the present invention. It is an enlarged view of the discharge waveform of FIG. 5B in FIG. DESCRIPTION OF SYMBOLS 1... Rotating member (rotor), 2... Magnetic pole, 4... Coil, 5... Core, 7... Comparison circuit, 8... Mono multivibrator, 9... Capacitor, 10... Resistor.
Claims (1)
れるロータに設けられる位置検出用のインデツク
スマグネツトと、磁気センサと、この磁気センサ
に生じた起電力が印加される比較手段と、この比
較手段から出力される信号に基づいてパルス信号
を形成するパルス形成手段と、このパルス形成手
段の前段に設けられ、前記パルス形成手段より出
力されるパルス信号のパルス幅を設定する容量と
を備えたモータの回転位置検出装置であつて、前
記容量に負荷が接続されていることを特徴とする
モータの回転位置検出装置。 An index magnet for position detection provided on a rotor rotationally driven by a drive magnet and a coil, a magnetic sensor, a comparison means to which the electromotive force generated in the magnetic sensor is applied, and from this comparison means. A motor comprising a pulse forming means for forming a pulse signal based on an output signal, and a capacitor provided at a stage upstream of the pulse forming means for setting the pulse width of the pulse signal output from the pulse forming means. 1. A rotational position detection device for a motor, characterized in that a load is connected to the capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988131610U JPH0253292U (en) | 1988-10-06 | 1988-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988131610U JPH0253292U (en) | 1988-10-06 | 1988-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0253292U true JPH0253292U (en) | 1990-04-17 |
Family
ID=31387842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988131610U Pending JPH0253292U (en) | 1988-10-06 | 1988-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0253292U (en) |
-
1988
- 1988-10-06 JP JP1988131610U patent/JPH0253292U/ja active Pending
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