JPS6261200U - - Google Patents
Info
- Publication number
- JPS6261200U JPS6261200U JP1985151894U JP15189485U JPS6261200U JP S6261200 U JPS6261200 U JP S6261200U JP 1985151894 U JP1985151894 U JP 1985151894U JP 15189485 U JP15189485 U JP 15189485U JP S6261200 U JPS6261200 U JP S6261200U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- voltage
- control
- resistor
- current
- 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 8
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Direct Current Motors (AREA)
Description
第１図は本考案の直流モータの速度制御回路の
回路図、第２図は従来の直流モータの速度制御回
路の回路図である。
１……直流モータ、２……電圧制御用トランジ
スタ、３……モータ駆動用電源、４……ＰＷＭ制
御回路（制御部）、８……分圧用抵抗、９……電
流信号検出部、１０……電流制御用トランジスタ
、Ｒ１，Ｒ２……分圧用抵抗、Ｒ３……電流制御
用抵抗、Ｒ４……電圧変換用抵抗。
FIG. 1 is a circuit diagram of a speed control circuit for a DC motor according to the present invention, and FIG. 2 is a circuit diagram of a conventional speed control circuit for a DC motor. DESCRIPTION OF SYMBOLS 1... DC motor, 2... Voltage control transistor, 3... Motor drive power supply, 4... PWM control circuit (control unit), 8... Voltage dividing resistor, 9... Current signal detection unit, 10... ... Current control transistor, R 1 , R 2 ... Voltage dividing resistor, R 3 ... Current control resistor, R 4 ... Voltage conversion resistor.
Claims (1)
電圧を調整する電圧制御用トランジスタと、上記
直列に接続された直流モータと電圧制御用トラン
ジスタの両端に接続されるモータ駆動用電源と、
上記電圧制御用トランジスタを制御する制御部と
、該制御部にモータの速度検出信号を与える速度
検出部を備えてなる直流モータの速度制御回路に
おいて、 上記速度検出部は直流モータの両端子間に接続
される分圧用抵抗と、電流制御用抵抗とそれに直
列に接続される電流制御用トランジスタ及び電圧
変換用抵抗とを有し上記モータ駆動用電源の両端
に接続される電流信号検出部とを具備し、上記電
流制御用トランジスタのベースは上記分圧用抵抗
の中間点に接続し、上記直流モータの端子間電圧
を上記電流信号検出部を流れる電流信号によつて
検出し、該電流信号から上記電圧変換用抵抗によ
つて速度検出信号を作り上記制御部に与えること
を特徴とする直流モータの速度制御回路。[Claims for Utility Model Registration] A voltage control transistor connected in series to a DC motor to adjust the terminal voltage of the DC motor, and a motor drive connected to both ends of the DC motor and voltage control transistor connected in series. power supply for
In a speed control circuit for a DC motor, the speed detection circuit includes a control unit that controls the voltage control transistor, and a speed detection unit that provides a motor speed detection signal to the control unit, wherein the speed detection unit is connected between both terminals of the DC motor. A current signal detection unit is provided, which has a voltage dividing resistor connected to the current control resistor, a current control transistor connected in series with the current control resistor, and a voltage conversion resistor connected to both ends of the motor drive power source. The base of the current control transistor is connected to the midpoint of the voltage dividing resistor, and the voltage between the terminals of the DC motor is detected by the current signal flowing through the current signal detection section, and the voltage is determined from the current signal. A speed control circuit for a DC motor, characterized in that a speed detection signal is generated by a conversion resistor and is applied to the control section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985151894U JPS6261200U (en) | 1985-10-03 | 1985-10-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985151894U JPS6261200U (en) | 1985-10-03 | 1985-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6261200U true JPS6261200U (en) | 1987-04-16 |
Family
ID=31069375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985151894U Pending JPS6261200U (en) | 1985-10-03 | 1985-10-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6261200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0927978A (en) * | 1995-07-13 | 1997-01-28 | Nec Shizuoka Ltd | Radio selective calling receiver |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662084A (en) * | 1979-10-23 | 1981-05-27 | Fuji Electric Co Ltd | Controlling circuit for speed of motor |
-
1985
- 1985-10-03 JP JP1985151894U patent/JPS6261200U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662084A (en) * | 1979-10-23 | 1981-05-27 | Fuji Electric Co Ltd | Controlling circuit for speed of motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0927978A (en) * | 1995-07-13 | 1997-01-28 | Nec Shizuoka Ltd | Radio selective calling receiver |
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