JPS61174900U - - Google Patents
Info
- Publication number
- JPS61174900U JPS61174900U JP5745985U JP5745985U JPS61174900U JP S61174900 U JPS61174900 U JP S61174900U JP 5745985 U JP5745985 U JP 5745985U JP 5745985 U JP5745985 U JP 5745985U JP S61174900 U JPS61174900 U JP S61174900U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- speed
- sawtooth wave
- programmable
- 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
- 239000000284 extract Substances 0.000 claims 2
- 238000000605 extraction Methods 0.000 claims 1
- 238000010304 firing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Control Of Ac Motors In General (AREA)
Description
第１図は本考案の実施例を示す制御回路図、第
２図はその回転速度特性図、第３図は従来例を示
す制御回路図、第４図はその回転速度特性図であ
る。
図中、Ｍは整流子電動機、ＳＣＲ１，ＳＣＲ２
はサイリスタ、ＰＵＴはプログラマブルユニジヤ
ンクシヨントランジスタ、抵抗Ｒ３存びコンデン
サＣはのこぎり波発生回路の各要素、ＶＲ１は速
度調節用の可変抵抗、ＶＲ２は最高速度設定回路
を構成する抵抗である。
FIG. 1 is a control circuit diagram showing an embodiment of the present invention, FIG. 2 is a rotation speed characteristic diagram thereof, FIG. 3 is a control circuit diagram showing a conventional example, and FIG. 4 is a rotation speed characteristic diagram thereof. In the figure, M is a commutator motor, SCR 1 , SCR 2
is a thyristor, PUT is a programmable union transistor, resistor R3 and capacitor C are elements of the sawtooth wave generation circuit, VR1 is a variable resistor for speed adjustment, and VR2 is a resistor that constitutes the maximum speed setting circuit. .
Claims (1)
よつて交流電源電圧を位相制御して速度制御する
回路において、前記サイリスタに点弧信号を与え
るプログラマブルユニジヤンクシヨントランジス
タと、該プログラマブルユニジヤンクシヨントラ
ンジスタのアノードに接続されていて交流電源電
圧と同期した一定傾斜ののこぎり波を発生するの
こぎり波発生回路と、定レベル電圧を分圧してそ
の分電圧を取出すポテンシヨメータ要素であつて
その調節に応じて前記のこぎり波の最大電圧を上
まわるレベルからのこぎり波の傾斜部と交叉可能
なレベルにわたる電圧を取出して前記プログラマ
ブルユニジヤンクシヨントランジスタのゲートに
与える速度調節用の可変抵抗と、一端が前記分電
圧の最大電圧取出し点近傍に接続され他端が前記
プログラマブルユニジヤンクシヨントランジスタ
のゲートに接続されてなる抵抗を含む回路であつ
て該抵抗の値をパラメータとして前記可変抵抗の
調節に基づいて設定されている始動回転速度が固
定されたままで前記可変抵抗の調節操作に対する
速度設定値の傾斜が加減されて最高回転速度が設
定される最高速度設定回路とを設けてなる整流子
電動機の速度制御回路。 A circuit for controlling the speed by controlling the phase of an AC power supply voltage using a thyristor connected in series with a commutator motor, comprising: a programmable unijunction transistor for providing a firing signal to the thyristor; and an anode of the programmable unijunction transistor. a sawtooth wave generation circuit that is connected to the circuit and generates a sawtooth wave with a constant slope in synchronization with the AC power supply voltage; and a potentiometer element that divides the constant level voltage and extracts the corresponding voltage. a variable resistor for speed adjustment that extracts a voltage ranging from a level exceeding the maximum voltage of the sawtooth wave to a level that can cross the slope part of the sawtooth wave and applies it to the gate of the programmable union transistor; A circuit including a resistor connected near a voltage extraction point and having the other end connected to the gate of the programmable union transistor, the starting circuit being set based on adjustment of the variable resistor using the value of the resistor as a parameter. A speed control circuit for a commutator motor, comprising: a maximum speed setting circuit in which the maximum rotation speed is set by adjusting the slope of the speed setting value in response to the adjustment operation of the variable resistor while the rotation speed remains fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985057459U JPH0540719Y2 (en) | 1985-04-19 | 1985-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985057459U JPH0540719Y2 (en) | 1985-04-19 | 1985-04-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61174900U true JPS61174900U (en) | 1986-10-31 |
| JPH0540719Y2 JPH0540719Y2 (en) | 1993-10-15 |
Family
ID=30582009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985057459U Expired - Lifetime JPH0540719Y2 (en) | 1985-04-19 | 1985-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0540719Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5694993A (en) * | 1979-12-27 | 1981-07-31 | Janome Sewing Mach Co Ltd | Speed control circuit for electromotor |
| JPS59159694A (en) * | 1983-03-02 | 1984-09-10 | Tokyo Electric Co Ltd | Input control circuit of motor driven blower |
-
1985
- 1985-04-19 JP JP1985057459U patent/JPH0540719Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5694993A (en) * | 1979-12-27 | 1981-07-31 | Janome Sewing Mach Co Ltd | Speed control circuit for electromotor |
| JPS59159694A (en) * | 1983-03-02 | 1984-09-10 | Tokyo Electric Co Ltd | Input control circuit of motor driven blower |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0540719Y2 (en) | 1993-10-15 |
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