JP2001057766A - Rotational speed detecting circuit for dc brushless motor - Google Patents
Rotational speed detecting circuit for dc brushless motorInfo
- Publication number
- JP2001057766A JP2001057766A JP11260893A JP26089399A JP2001057766A JP 2001057766 A JP2001057766 A JP 2001057766A JP 11260893 A JP11260893 A JP 11260893A JP 26089399 A JP26089399 A JP 26089399A JP 2001057766 A JP2001057766 A JP 2001057766A
- Authority
- JP
- Japan
- Prior art keywords
- brushless motor
- rotational speed
- motor
- revolutions
- detecting 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
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明は、直流ブラシレス・
モーターの回転速度及び回転数を検出するものである。TECHNICAL FIELD The present invention relates to a direct current brushless
It detects the rotation speed and the number of rotations of the motor.
【０００２】[0002]
【従来の技術】従来、直流ブラシレス・モーターの回転
速度及び回転数を検出するためには、回転軸にフォトイ
ンタラプタを取付ける方法、ＦＧによる方法、モーター
の駆動制御回路より直接信号を取り出す方法が採用され
ている。2. Description of the Related Art Conventionally, in order to detect the rotation speed and the number of rotations of a DC brushless motor, a method of mounting a photo interrupter on a rotating shaft, a method of FG, and a method of directly extracting a signal from a motor drive control circuit have been adopted. Have been.
【０００３】[0003]
【発明が解決しようとする課題】従来一的に使用されて
いる回転検出の付いていない直流ブラシレス・モーター
の回転速度及び回転数の検出を行なう。SUMMARY OF THE INVENTION The rotation speed and number of rotations of a DC brushless motor without rotation detection, which is conventionally conventionally used, is detected.
【０００４】[0004]
【課題を解決するための手段】本発明は、直流ブラシレ
ス・モーターの極性が転換する際に起こる電流の変化を
外部に付加した電子回路で検出する事により、回転を検
出する。SUMMARY OF THE INVENTION According to the present invention, rotation is detected by detecting a change in current that occurs when the polarity of a DC brushless motor is changed by an externally added electronic circuit.
【０００５】[0005]
【発明の実施の形態】直流ブラシレス・モーターにトラ
ンス又はフォトカプラ又は抵抗を直列に配置し、電流の
変化から回転速度及び回転数を検出する。（図１ａ、図
１ｂ、図１ｃ）DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A transformer, a photocoupler or a resistor is arranged in series with a DC brushless motor, and a rotation speed and a rotation speed are detected from a change in current. (FIGS. 1a, 1b, 1c)
【０００６】[0006]
【発明の効果】直流ブラシレス・モーターの回転速度、
回転数を検出して、マイコンによるモーターの制御が可
能になる。（図２）The rotation speed of a DC brushless motor,
The motor speed can be controlled by the microcomputer by detecting the rotation speed. (Fig. 2)
【０００９】回転検出付きのモーターを使う必要がな
い。There is no need to use a motor with rotation detection.
【図１ａ】トランスを使用した回路図である。FIG. 1a is a circuit diagram using a transformer.
【図１ｂ】フォトカプラを使用した回路図である。FIG. 1b is a circuit diagram using a photocoupler.
【図１ｃ】抵抗を使用した回路図である。FIG. 1c is a circuit diagram using resistors.
【図２】本発明を使用した直流ブラシレス・モーター速
度制御の回路図である。FIG. 2 is a circuit diagram of DC brushless motor speed control using the present invention.
１ モーター ２ トランス ３ フォトカプラ ４ 抵抗 1 Motor 2 Transformer 3 Photocoupler 4 Resistance
Claims (3)
直列に配置して、回転速度及び回転数の検出を行なう。1. A transformer is arranged in series with a DC brushless motor to detect a rotation speed and a rotation speed.
ラを直列に配置して、回転速度及び回転数の検出を行な
う。2. A photocoupler is arranged in series with a DC brushless motor to detect a rotation speed and a rotation speed.
に配置して、回転速度及び回転数の検出を行なう。3. A rotational speed and a rotational speed are detected by arranging a resistor in series with a DC brushless motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11260893A JP2001057766A (en) | 1999-08-10 | 1999-08-10 | Rotational speed detecting circuit for dc brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11260893A JP2001057766A (en) | 1999-08-10 | 1999-08-10 | Rotational speed detecting circuit for dc brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001057766A true JP2001057766A (en) | 2001-02-27 |
Family
ID=17354227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11260893A Pending JP2001057766A (en) | 1999-08-10 | 1999-08-10 | Rotational speed detecting circuit for dc brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001057766A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2844932A1 (en) * | 2002-09-24 | 2004-03-26 | Arvinmeritor Light Vehicle Sys | Motor/reducer motor having coil and shaft current rotating with current feed varying following shaft motor coupling from primary winding and secondary winding passing induced current following current feed. |
-
1999
- 1999-08-10 JP JP11260893A patent/JP2001057766A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2844932A1 (en) * | 2002-09-24 | 2004-03-26 | Arvinmeritor Light Vehicle Sys | Motor/reducer motor having coil and shaft current rotating with current feed varying following shaft motor coupling from primary winding and secondary winding passing induced current following current feed. |
| WO2004030188A1 (en) * | 2002-09-24 | 2004-04-08 | Arvinmeritor Light Vehicle Systems-France | Motor and gear motor |
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