JPH0363093U - - Google Patents
Info
- Publication number
- JPH0363093U JPH0363093U JP1989121179U JP12117989U JPH0363093U JP H0363093 U JPH0363093 U JP H0363093U JP 1989121179 U JP1989121179 U JP 1989121179U JP 12117989 U JP12117989 U JP 12117989U JP H0363093 U JPH0363093 U JP H0363093U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- circuit
- transistor
- current mirror
- torque setting
- 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
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案に係る直流モータの回転数制御
装置の一実施例を示す回路図、第２図は本考案装
置での直流モータの回転数特性図である。第３図
は直流モータの回転数制御装置の従来例を示す回
路図、第４図は従来装置での直流モータの回転数
特性図である。
Ｍ……直流モータ、ＱＸ……分流トランジスタ
、ＱＹ……駆動トランジスタ、ＲＴ……トルク設
定用抵抗、Ａ……コンパレータ、Ｂ……定電圧発
生回路。
FIG. 1 is a circuit diagram showing an embodiment of a DC motor rotation speed control device according to the present invention, and FIG. 2 is a rotation speed characteristic diagram of a DC motor in the device according to the present invention. FIG. 3 is a circuit diagram showing a conventional example of a DC motor rotation speed control device, and FIG. 4 is a rotation speed characteristic diagram of a DC motor in the conventional device. M: DC motor, QX: shunt transistor, QY: drive transistor, RT: torque setting resistor, A: comparator, B: constant voltage generation circuit.
Claims (1)
トルク設定用抵抗と分流トランジスタの直列回路
を並列接続し、上記各トランジスタにてカレント
ミラー回路を形成すると共に、直流モータ及びト
ルク設定用抵抗と各トランジスタとの各接続点に
コンパレータの２入力を接続し、その出力をカレ
ントミラー回路の制御入力に接続して回路構成し
、上記コンパレータでの比較によりカレントミラ
ー回路を制御して直流モータの回転数を一定に保
持する装置であつて、 上記コンパレータの１入力に定電圧を印加する
定電圧発生回路を上記トルク設定用抵抗と直流モ
ータ間に直列接続したことを特徴とする直流モー
タの回転数制御装置。[Claims for Utility Model Registration] In a series circuit of a DC motor and a drive transistor,
A series circuit of a torque setting resistor and a shunt transistor is connected in parallel to form a current mirror circuit with each transistor, and two inputs of a comparator are connected to each connection point between the DC motor, torque setting resistor, and each transistor. and connects its output to the control input of a current mirror circuit to configure a circuit, and controls the current mirror circuit by comparison with the above comparator to keep the rotational speed of the DC motor constant. A rotation speed control device for a DC motor, characterized in that a constant voltage generating circuit that applies a constant voltage to one input is connected in series between the torque setting resistor and the DC motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989121179U JP2521527Y2 (en) | 1989-10-16 | 1989-10-16 | DC motor rotation speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989121179U JP2521527Y2 (en) | 1989-10-16 | 1989-10-16 | DC motor rotation speed control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0363093U true JPH0363093U (en) | 1991-06-20 |
| JP2521527Y2 JP2521527Y2 (en) | 1996-12-25 |
Family
ID=31669217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989121179U Expired - Lifetime JP2521527Y2 (en) | 1989-10-16 | 1989-10-16 | DC motor rotation speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2521527Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5686085A (en) * | 1979-11-16 | 1981-07-13 | Matsushita Electric Ind Co Ltd | Controlling device for speed of dc motor |
| JPS61104797U (en) * | 1984-12-12 | 1986-07-03 | ||
| JPS6281987A (en) * | 1985-10-02 | 1987-04-15 | Matsushita Electric Ind Co Ltd | Speed controller for small-sized dc motor |
-
1989
- 1989-10-16 JP JP1989121179U patent/JP2521527Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5686085A (en) * | 1979-11-16 | 1981-07-13 | Matsushita Electric Ind Co Ltd | Controlling device for speed of dc motor |
| JPS61104797U (en) * | 1984-12-12 | 1986-07-03 | ||
| JPS6281987A (en) * | 1985-10-02 | 1987-04-15 | Matsushita Electric Ind Co Ltd | Speed controller for small-sized dc motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2521527Y2 (en) | 1996-12-25 |