JPS5925998U - Electric motor speed control device - Google Patents
Electric motor speed control deviceInfo
- Publication number
- JPS5925998U JPS5925998U JP1982120090U JP12009082U JPS5925998U JP S5925998 U JPS5925998 U JP S5925998U JP 1982120090 U JP1982120090 U JP 1982120090U JP 12009082 U JP12009082 U JP 12009082U JP S5925998 U JPS5925998 U JP S5925998U
- Authority
- JP
- Japan
- Prior art keywords
- monostable multivibrator
- circuit
- pulse width
- resistor
- speed
- 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
Landscapes
- Control Of Electric Motors In General (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は電動機の速度制御装置のブロック図、第2図は
従来の速度制御装置における速度切替回路の回路図、第
3図は同単安定マルチバイブレータにおける出力パルス
幅とスレシュホールド電圧の関係を示す図、第4図は本
考案の実施例にかかる速度切替回路の回路図、第5図は
同単安定マルチバイブレータにおける出力パルス幅吉ス
レシュホールド電圧の関係を示す図である。
1・・・モニタ、4・・・トリガ発生回路、5・・・単
安定マルチバイブレーク、9・・・駆動回路、10・・
・速度切替回路、R1〜Rr・・・固定抵抗器、81〜
Sr・・・スイッチ、C・・・コンデンサ、VF6・・
・可変抵抗器、V、。
・・・電源。
lw IW
° →T
第4図Figure 1 is a block diagram of a motor speed control device, Figure 2 is a circuit diagram of a speed switching circuit in a conventional speed control device, and Figure 3 shows the relationship between output pulse width and threshold voltage in the same monostable multivibrator. 4 is a circuit diagram of a speed switching circuit according to an embodiment of the present invention, and FIG. 5 is a diagram showing the relationship between output pulse width and threshold voltage in the same monostable multivibrator. DESCRIPTION OF SYMBOLS 1... Monitor, 4... Trigger generation circuit, 5... Monostable multi-bi break, 9... Drive circuit, 10...
・Speed switching circuit, R1~Rr...Fixed resistor, 81~
Sr...Switch, C...Capacitor, VF6...
・Variable resistor, V. ···power supply. lw IW ° →T Figure 4
Claims (1)
トリガ発生回路と、このトリガ発生回路の出力側に接続
され、前記トリガパルスを受けたのち抵抗とコンデンサ
よりなる時定数回路により決定される一定のパルス幅を
有する信号を出力する単安定マルチバイブレータと、こ
の単安定マルチバイブレータからの信号に基づきモータ
への通電を制御する駆動回路と、前記単安定マル゛チバ
イブレータの出力パルス幅を選択する速度切替回路とを
備え、前記速度切替回路は、コンデンサとにより前記時
定数回路を構成し、前記単安定マルチバイブレータの出
力パルス幅を定める並列接続された複数個の固定抵抗器
と、この抵抗器と前記コンデンサとの間に接続され、前
記抵抗器を選択切替える複数個のスイッチと、前記抵抗
器と電源との間に接続した前記単安定マルチバイブレー
タの出力パルス幅調整用の可変抵抗器とにより構成して
なる電動機の速度制御装置。A trigger generation circuit that generates a trigger pulse with a period corresponding to the speed of the motor, and a constant time constant circuit that is connected to the output side of this trigger generation circuit and that is determined by a time constant circuit made of a resistor and a capacitor after receiving the trigger pulse. A monostable multivibrator that outputs a signal having a pulse width, a drive circuit that controls energization of a motor based on the signal from the monostable multivibrator, and a speed for selecting the output pulse width of the monostable multivibrator. a switching circuit, and the speed switching circuit includes a capacitor that constitutes the time constant circuit, and a plurality of parallel-connected fixed resistors that determine the output pulse width of the monostable multivibrator; Consisting of a plurality of switches connected between the capacitor and selectively switching the resistor, and a variable resistor connected between the resistor and a power source for adjusting the output pulse width of the monostable multivibrator. A speed control device for electric motors.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1982120090U JPS5925998U (en) | 1982-08-07 | 1982-08-07 | Electric motor speed control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1982120090U JPS5925998U (en) | 1982-08-07 | 1982-08-07 | Electric motor speed control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5925998U true JPS5925998U (en) | 1984-02-17 |
Family
ID=30275355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1982120090U Pending JPS5925998U (en) | 1982-08-07 | 1982-08-07 | Electric motor speed control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5925998U (en) |
-
1982
- 1982-08-07 JP JP1982120090U patent/JPS5925998U/en active Pending
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