JPS61192696U - - Google Patents
Info
- Publication number
- JPS61192696U JPS61192696U JP1985074160U JP7416085U JPS61192696U JP S61192696 U JPS61192696 U JP S61192696U JP 1985074160 U JP1985074160 U JP 1985074160U JP 7416085 U JP7416085 U JP 7416085U JP S61192696 U JPS61192696 U JP S61192696U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- pulse signal
- circuit
- transistor
- energizes
- 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 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Direct Current Motors (AREA)
Description
第1図は本考案に係る直流モータの回転制御回
路におけるモータドライブ回路の一実施例を示す
回路図、第2図は直流モータの回転制御回路を示
すブロツク図、第3図は従来におけるモータドラ
イブ回路を示す回路図である。
6……直流モータ、11……リトリガー・ワン
シヨツトマルチバイブレータ、Q6〜Q9……ト
ランジスタ。
Fig. 1 is a circuit diagram showing an embodiment of a motor drive circuit in a DC motor rotation control circuit according to the present invention, Fig. 2 is a block diagram showing a DC motor rotation control circuit, and Fig. 3 is a conventional motor drive circuit. It is a circuit diagram showing a circuit. 6...DC motor, 11...Retrigger one-shot multivibrator, Q6 to Q9 ...Transistor.
Claims (1)
を制御するようにした直流モータの回転制御回路
において、パルス信号のオン・オフいづれかの周
期で直流モータに通電するトランジスタと、パル
ス信号が或る一定時間以上入力されない時に出力
を送出するリトリガー・ワンシヨツトマルチバイ
ブレータ等のパルス信号の有無検出回路と、該検
出回路のパルス信号無しの検出出力により前記直
流モータの電極間を短絡するトランジスタとを有
するモータドライブ回路を包含することを特徴と
する直流モータの回転制御回路。 In a DC motor rotation control circuit that controls the rotation speed by changing the pulse width of the input voltage, there is a transistor that energizes the DC motor at either the on or off period of the pulse signal, and a transistor that energizes the DC motor at either the on or off period of the pulse signal. A motor drive that has a circuit for detecting the presence or absence of a pulse signal such as a retrigger one-shot multivibrator that sends an output when no input is received, and a transistor that shorts the electrodes of the DC motor based on the detection output of the detection circuit that there is no pulse signal. 1. A rotation control circuit for a DC motor, comprising a circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985074160U JPS61192696U (en) | 1985-05-21 | 1985-05-21 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985074160U JPS61192696U (en) | 1985-05-21 | 1985-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61192696U true JPS61192696U (en) | 1986-11-29 |
Family
ID=30614195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985074160U Pending JPS61192696U (en) | 1985-05-21 | 1985-05-21 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61192696U (en) |
-
1985
- 1985-05-21 JP JP1985074160U patent/JPS61192696U/ja active Pending