JPH042996U - - Google Patents
Info
- Publication number
- JPH042996U JPH042996U JP1990042701U JP4270190U JPH042996U JP H042996 U JPH042996 U JP H042996U JP 1990042701 U JP1990042701 U JP 1990042701U JP 4270190 U JP4270190 U JP 4270190U JP H042996 U JPH042996 U JP H042996U
- Authority
- JP
- Japan
- Prior art keywords
- electromotive force
- back electromotive
- motor
- phase
- drive 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
- 230000001934 delay Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
第１図は本考案になるモータの駆動回路の一実
施例回路図、第２図Ａ〜Ｄはコントローラ出力波
形、ＦＧ波形、Ｅｕ点の逆起電力波形、駆動テー
ブル、駆動インデツクスを示す図、第３図は位相
関係が正しい場合のシーケンス、第４図Ａ〜Ｃは
位相関係が正しくない場合のシーケンス、第５図
Ａ，Ｂは本考案になるモータの駆動回路動作を示
すフローチヤート、第６図Ａ，ＢはＦＧパルスの
周期のρ倍（０＜ρ＜１）だけ遅らせたパルス波
形図ある。
１……モータの駆動回路、２……Ａ／Ｄコンバ
ータ（逆起電力測定器）、３……記憶器、４……
エンコーダＦＧ、５……エツジ検出器、６……カ
ウンター、７……調整器、８……比較器、９……
コントローラ、Ｕ，Ｖ，Ｗ……コイル。
FIG. 1 is a circuit diagram of an embodiment of a motor drive circuit according to the present invention, and FIGS. 2A to 2D are diagrams showing a controller output waveform, an FG waveform, a back electromotive force waveform at point Eu, a drive table, and a drive index. FIG. 3 is a sequence when the phase relationship is correct, FIGS. 4 A to C are sequences when the phase relationship is incorrect, and FIGS. 5 A and B are flowcharts showing the operation of the motor drive circuit according to the present invention. 6A and 6B are pulse waveform diagrams delayed by ρ times the period of the FG pulse (0<ρ<1). 1... Motor drive circuit, 2... A/D converter (back electromotive force measuring device), 3... Memory device, 4...
Encoder FG, 5... Edge detector, 6... Counter, 7... Adjuster, 8... Comparator, 9...
Controller, U, V, W...coil.
Claims (1)
トすることにより、前記モータのコイルに流す電
流を切り替えるモータの駆動回路において、 前記コイルの接続時と切断時に発生する、前記
コイルからの逆起電力を測定する逆起電力測定器
と、 この逆起電力測定器からの出力を記憶する記憶
器と、 前記エンコーダからのパルスのエツジを検出し
てカウントするカウンターと、 前回の逆起電力波形の位相と今回の逆起電力の
波形の位相を比較する比較器と、 この比較器からの位相情報に基づき、切り替え
タイミングを遅らせ、又は進める信号を出力する
調整器とから構成されたことを特徴とするモータ
の駆動回路。[Claims for Utility Model Registration] In a motor drive circuit that switches a current flowing through a coil of the motor by counting pulse outputs from an encoder of the motor, a back electromotive force measuring device for measuring the back electromotive force of the back electromotive force; a memory device for storing the output from the back electromotive force measuring device; a counter for detecting and counting the edges of the pulses from the encoder; It consists of a comparator that compares the phase of the power waveform with the phase of the current back electromotive force waveform, and a regulator that outputs a signal that delays or advances the switching timing based on the phase information from this comparator. A motor drive circuit featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990042701U JPH042996U (en) | 1990-04-20 | 1990-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990042701U JPH042996U (en) | 1990-04-20 | 1990-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH042996U true JPH042996U (en) | 1992-01-10 |
Family
ID=31554475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990042701U Pending JPH042996U (en) | 1990-04-20 | 1990-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005341702A (en) * | 2004-05-26 | 2005-12-08 | Kyocera Mita Corp | Motor control device |
-
1990
- 1990-04-20 JP JP1990042701U patent/JPH042996U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005341702A (en) * | 2004-05-26 | 2005-12-08 | Kyocera Mita Corp | Motor control device |
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