JPS59119797U - DC motor speed control circuit - Google Patents
DC motor speed control circuitInfo
- Publication number
- JPS59119797U JPS59119797U JP1983012571U JP1257183U JPS59119797U JP S59119797 U JPS59119797 U JP S59119797U JP 1983012571 U JP1983012571 U JP 1983012571U JP 1257183 U JP1257183 U JP 1257183U JP S59119797 U JPS59119797 U JP S59119797U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- speed control
- control circuit
- motor
- 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
Landscapes
- 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のモータの速度制御回路、第２図−は本考
案の一実施例になるモータの速度制御回路を夫々示す。
Ｍ・・・直流モータ、Ｖｓ・・・基準電圧、Ｑ□・・・
制御用トランジスタ、Ｒ１〜９・・・抵抗、Ｖｚ・・・
定電圧源、Ｖｃｃ・・・直流電源端子、１・・・比較回
路、２・・・演算増巾器Ｌ Ｑ２． Ｑ３・・・トラン
ジスタ、Ｅｏ・・・モータの逆起電力、Ｒｏ・・・内部
抵抗。FIG. 1 shows a conventional motor speed control circuit, and FIG. 2 shows a motor speed control circuit according to an embodiment of the present invention. M...DC motor, Vs...Reference voltage, Q□...
Control transistor, R1-9...resistance, Vz...
Constant voltage source, Vcc... DC power supply terminal, 1... Comparison circuit, 2... Arithmetic amplifier L Q2. Q3...transistor, Eo...motor back electromotive force, Ro...internal resistance.
Claims (6)
ータ及び制御用トランジスタと、該第１の抵抗及びモー
タの両端に並列に接続された第２及び第３の抵抗とから
なるブリッジ回路において、出力端が該制御用トランジ
スタに接続され、−入力端が該第２及び第３の接続点に
接続され、他入力端が定電流回路に発生した定電流を第
４の抵抗に流して得られた基準電圧を介して該第１の抵
抗及びモータの接続点に夫々接続された比較回路を具備
してなる直流モータの速度制御回路。(1) A bridge circuit consisting of a first resistor connected to both ends of a DC power supply, a motor and a control transistor, and a second and third resistor connected in parallel to both ends of the first resistor and the motor. , the output terminal is connected to the control transistor, the - input terminal is connected to the second and third connection points, and the other input terminal allows a constant current generated in the constant current circuit to flow through the fourth resistor. A speed control circuit for a DC motor, comprising a comparator circuit connected to the first resistor and a connection point of the motor, respectively, via the obtained reference voltage.
とする実用新案登録請求の範囲第（１）項記載の直流モ
ータの速度制御回路。(2) The speed control circuit for a DC motor according to claim (1), wherein the fourth resistor or a part thereof is made variable.
抗を接続した事を特徴とする実用新案登録請求の範囲第
（１）項記載の直流モータの速度制御回路。(3) The speed control circuit for a DC motor according to claim 1, wherein a constant voltage element or a resistor with a negative temperature coefficient is connected to the fourth resistor.
電圧を可変にした事を特徴とする実用新案登録請求の範
囲第（１）項記載の直流モータの速度制御回路。(4) The speed control circuit for a DC motor according to claim 1, wherein the reference voltage is made variable by making the current generated in the constant current circuit variable.
圧を分圧する分圧手段と、演算増巾器と、制御入力がこ
の演算増巾器の出力に接続され一方の出力端が第５の抵
抗を介してアースされ他の出力端が該第４の抵抗に接続
された能動素子とからなり、該演算増巾器の一入力端が
該分圧手段に接続され、他入力端が該能動素子の該他の
出力端に接続された事を特徴とする実用新案登録請求の
範囲第（１）項記載の直流モニタの速度 ′制御
回路。(5) The constant current circuit includes a constant voltage source, voltage dividing means for dividing the voltage of the constant voltage source, an operational amplifier, a control input connected to the output of the operational amplifier, and one output. an active element whose end is grounded via a fifth resistor and whose other output end is connected to the fourth resistor; one input end of the operational amplifier is connected to the voltage dividing means; The speed control circuit for a DC monitor according to claim 1, wherein the input terminal is connected to the other output terminal of the active element.
を使用した事を特徴とする実用新案登録請求の範囲第（
５）項の直流モータの速度制御回路。(6) Utility model registration claim No.
5) DC motor speed control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983012571U JPS59119797U (en) | 1983-01-31 | 1983-01-31 | DC motor speed control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983012571U JPS59119797U (en) | 1983-01-31 | 1983-01-31 | DC motor speed control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59119797U true JPS59119797U (en) | 1984-08-13 |
Family
ID=30143971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983012571U Pending JPS59119797U (en) | 1983-01-31 | 1983-01-31 | DC motor speed control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59119797U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53110020A (en) * | 1977-03-08 | 1978-09-26 | Mabuchi Motor Co | Speed control device for dc motor |
-
1983
- 1983-01-31 JP JP1983012571U patent/JPS59119797U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53110020A (en) * | 1977-03-08 | 1978-09-26 | Mabuchi Motor Co | Speed control device for dc motor |
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