JPH01150493U - - Google Patents
Info
- Publication number
- JPH01150493U JPH01150493U JP4427688U JP4427688U JPH01150493U JP H01150493 U JPH01150493 U JP H01150493U JP 4427688 U JP4427688 U JP 4427688U JP 4427688 U JP4427688 U JP 4427688U JP H01150493 U JPH01150493 U JP H01150493U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- circuit
- frequency
- voltage
- generation 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
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Stopping Of Electric Motors (AREA)
Description
第１図は本考案のモータの回転速度制御回路の
一実施例のブロツク構成図、第２図はその具体的
回路構成図、第３図は従来のモータの駆動回路の
ブロツク図、第４図は本考案回路の動作説明用タ
イミングチヤートである。
２…モータ、３…駆動回路（ＭＤＡ）、４…Ｆ
Ｇ（周波数発電機）、５…１Ｎ分周器、６…Ｆ／
Ｖ変換器、１０…回転速度制御回路、１２，１９
…インバータ、１３…モノマルチ、１５…方向変
換回路、１６…制御電圧切換え回路、１７…タイ
ミング発生回路、１８…ブレーキ電圧発生回路、
Ｉｎ１，Ｉｎ２…入力端子、Ｓｗ１…切換えスイ
ツチ、Ｃ１…コンデンサ、Ｒ１〜Ｒ３…抵抗。
Fig. 1 is a block diagram of an embodiment of the motor rotational speed control circuit of the present invention, Fig. 2 is a specific circuit diagram thereof, Fig. 3 is a block diagram of a conventional motor drive circuit, and Fig. 4. is a timing chart for explaining the operation of the circuit of the present invention. 2...Motor, 3...Drive circuit (MDA), 4...F
G (frequency generator), 5...1N frequency divider, 6...F/
V converter, 10... Rotation speed control circuit, 12, 19
... Inverter, 13... Monomulti, 15... Direction conversion circuit, 16... Control voltage switching circuit, 17... Timing generation circuit, 18... Brake voltage generation circuit,
In1 , In2 ...input terminal, Sw1 ...changeover switch, C1 ...capacitor, R1 to R3 ...resistance.
Claims (1)
路に回転方向指示用信号を印加する第１の入力端
子と、上記モータの回転速度に比例した周波数を
持つ信号を出力する周波数発電機と、該周波数発
電機の出力信号周波数を１Ｎの周波数に分周する
１Ｎ分周器と、該１Ｎ分周器の出力信号周波数に
応じた制御電圧を発生して上記駆動回路に印加す
るＦ／Ｖ変換器と、上記１Ｎ分周器に分周率を設
定する指示用信号を印加するための第２の入力端
子とを備えたモータの回転速度制御回路において
、 所定の直流電圧を発生するブレーキ電圧発生回
路と、上記１Ｎ分周器からのパルスを入力して所
定の時定数τの期間だけＨレベルが持続する信号
を出力するタイミング発生回路と、該タイミング
発生回路の出力信号レベルがＨのときに上記Ｆ／
Ｖ変換器より上記ブレーキ電圧発生回路の出力に
切換えて上記駆動回路に供給する制御電圧切換え
回路と、上記タイミング発生回路の出力信号レベ
ルがＨのときに上記モータの回転方向電圧を逆方
向に変換するための方向変換回路とを備えること
により、上記モータを減速する際に該モータにブ
レーキ電圧が印加されるよう構成したことを特徴
とするモータの回転速度制御回路。[Claims for Utility Model Registration] A drive circuit that rotationally drives a motor, a first input terminal that applies a rotation direction instruction signal to the drive circuit, and outputs a signal having a frequency proportional to the rotation speed of the motor. a 1N frequency divider that divides the output signal frequency of the frequency generator into a 1N frequency, and a control voltage that generates a control voltage according to the output signal frequency of the 1N frequency divider and supplies it to the drive circuit. In a motor rotational speed control circuit comprising an F/V converter for applying voltage, and a second input terminal for applying an instruction signal for setting a frequency division ratio to the 1N frequency divider, a predetermined DC voltage is applied. a brake voltage generation circuit that generates a brake voltage generation circuit, a timing generation circuit that inputs the pulse from the 1N frequency divider and outputs a signal that remains at an H level for a period of a predetermined time constant τ, and an output signal of the timing generation circuit. When the level is H, the above F/
A control voltage switching circuit which switches the output of the brake voltage generation circuit from the V converter and supplies it to the drive circuit, and converts the rotation direction voltage of the motor to the opposite direction when the output signal level of the timing generation circuit is H. 1. A rotational speed control circuit for a motor, comprising a direction conversion circuit for controlling the rotational speed of the motor, so that a brake voltage is applied to the motor when the motor is decelerated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4427688U JPH01150493U (en) | 1988-04-01 | 1988-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4427688U JPH01150493U (en) | 1988-04-01 | 1988-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01150493U true JPH01150493U (en) | 1989-10-18 |
Family
ID=31270643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4427688U Pending JPH01150493U (en) | 1988-04-01 | 1988-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01150493U (en) |
-
1988
- 1988-04-01 JP JP4427688U patent/JPH01150493U/ja active Pending
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