CN205039728U - Direct -current motor speed regulating circuit - Google Patents
Direct -current motor speed regulating circuit Download PDFInfo
- Publication number
- CN205039728U CN205039728U CN201520635033.3U CN201520635033U CN205039728U CN 205039728 U CN205039728 U CN 205039728U CN 201520635033 U CN201520635033 U CN 201520635033U CN 205039728 U CN205039728 U CN 205039728U
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- chip
- triode
- pin
- diode
- potentiometer
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- Expired - Fee Related
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Abstract
The utility model discloses a direct -current motor speed regulating circuit, including triode V1, diode D2 and chip IC1, diode D1's positive pole, potentiometre RP1's a stiff end, potentiometre RP1's slip end, power VCC, chip IC1's pin 4 and chip IC1's pin 8 are connected to triode V1's projecting pole, and motor M is connected to triode V1's collecting electrode, and electric capacity C1, resistance R1, diode D2's positive pole and chip IC1's pin 1 and ground connection are connected to motor M's the other end. The utility model discloses direct -current motor speed regulating circuit simple structure, components and parts are few, and the accurate control to the direct current motor rotational speed has been realized to the oscillator and triode constitution power output stage that utilize 555 time -recorders to constitute to set up two kinds of mode of speed governing and variable speed, therefore the circuit has, and the cost of manufacture is low, control is accurate and convenient to use's advantage.
Description
Technical field
The utility model relates to alignment circuit, specifically a kind of DC motor speed-regulating circuit.
Background technology
Direct current machine is due to stable performance, the advantage that mechanical strength is good is widely used in the power part of various plant equipment and household electrical appliance, but the speed governing at present for motor adopts potentiometer to carry out coarse modulated mostly, can not meet the control for precision equipment, therefore need to be improved.
Summary of the invention
The purpose of this utility model is the DC motor speed-regulating circuit providing a kind of structure simple, easy to use, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of DC motor speed-regulating circuit, comprise triode V1, diode D2 and chip IC 1, the emitter of described triode V1 connects the anode of diode D1, a stiff end of potentiometer RP1, the sliding end of potentiometer RP1, power supply VCC, the pin 4 of chip IC 1 and the pin 8 of chip IC 1, the collector electrode of triode V1 connects motor M, the other end of motor M connects electric capacity C1, resistance R1, the anode of diode D2 and the pin 1 of chip IC 1 also ground connection, the emitter of the base stage connecting triode V2 of triode V1, the collector electrode of triode V2 connects the negative electrode of diode D2 and the other end of resistance R1, the base stage contact resistance R2 of triode V2, the other end contact resistance R3 of resistance R2 and the pin 3 of chip IC 1, the other end of the negative electrode contact resistance R3 of diode D1, the pin 2 of chip IC 1 connects the other end of electric capacity C1, a stiff end of potentiometer RP2 and the pin 6 of chip IC 1, the pin 7 of chip IC 1 connects another stiff end of potentiometer RP1, another stiff end of potentiometer RP2 and the sliding end of potentiometer RP2.Chip IC 1 is NE555 type timer.
Compared with prior art, the beneficial effects of the utility model are: the utility model DC motor speed-regulating circuit structure is simple, components and parts are few, utilize oscillator and the triode composition power output stage of 555 timer compositions, achieve the accurate control to DC motor speed, and be provided with speed governing and speed change two kinds of mode of operations, therefore circuit have cost of manufacture low, control advantage accurate and easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of DC motor speed-regulating circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of DC motor speed-regulating circuit, comprise triode V1, diode D2 and chip IC 1, the emitter of described triode V1 connects the anode of diode D1, a stiff end of potentiometer RP1, the sliding end of potentiometer RP1, power supply VCC, the pin 4 of chip IC 1 and the pin 8 of chip IC 1, the collector electrode of triode V1 connects motor M, the other end of motor M connects electric capacity C1, resistance R1, the anode of diode D2 and the pin 1 of chip IC 1 also ground connection, the emitter of the base stage connecting triode V2 of triode V1, the collector electrode of triode V2 connects the negative electrode of diode D2 and the other end of resistance R1, the base stage contact resistance R2 of triode V2, the other end contact resistance R3 of resistance R2 and the pin 3 of chip IC 1, the other end of the negative electrode contact resistance R3 of diode D1, the pin 2 of chip IC 1 connects the other end of electric capacity C1, a stiff end of potentiometer RP2 and the pin 6 of chip IC 1, the pin 7 of chip IC 1 connects another stiff end of potentiometer RP1, another stiff end of potentiometer RP2 and the sliding end of potentiometer RP2.
Chip IC 1 is NE555 type timer.
Operation principle of the present utility model is: the NE555 in circuit and peripheral cell thereof use as oscillator, and the pulse frequency of its output 3 pin can regulate within the scope of 5-20Hz.Adjustable range is decided by the value of potentiometer RP1 and electric capacity C1.Form power output stage by triode V1 and triode V2 and control motor.Potentiometer RP1 and potentiometer RP2 can the frequency of oscillation of control NE555.There are " speed governing " and " speed change " two kinds of patterns available." speed governing " pattern sets up potentiometer RP1 in a certain frequency, allows motor rotate by the speed determined." change " fast mode is then with the continuous regulator potentiometer RP1 of automatic control means, makes motor change rotating speed at any time.Circuit structure is simple, components and parts are few, utilize oscillator and the triode composition power output stage of 555 timer compositions, achieve the accurate control to DC motor speed, and be provided with speed governing and speed change two kinds of mode of operations, therefore circuit have cost of manufacture low, control advantage accurate and easy to use.
Claims (1)
1. a DC motor speed-regulating circuit, comprise triode V1, diode D2 and chip IC 1, it is characterized in that, the emitter of described triode V1 connects the anode of diode D1, a stiff end of potentiometer RP1, the sliding end of potentiometer RP1, power supply VCC, the pin 4 of chip IC 1 and the pin 8 of chip IC 1, the collector electrode of triode V1 connects motor M, the other end of motor M connects electric capacity C1, resistance R1, the anode of diode D2 and the pin 1 of chip IC 1 also ground connection, the emitter of the base stage connecting triode V2 of triode V1, the collector electrode of triode V2 connects the negative electrode of diode D2 and the other end of resistance R1, the base stage contact resistance R2 of triode V2, the other end contact resistance R3 of resistance R2 and the pin 3 of chip IC 1, the other end of the negative electrode contact resistance R3 of diode D1, the pin 2 of chip IC 1 connects the other end of electric capacity C1, a stiff end of potentiometer RP2 and the pin 6 of chip IC 1, the pin 7 of chip IC 1 connects another stiff end of potentiometer RP1, another stiff end of potentiometer RP2 and the sliding end of potentiometer RP2, described chip IC 1 is NE555 type timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520635033.3U CN205039728U (en) | 2015-08-21 | 2015-08-21 | Direct -current motor speed regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520635033.3U CN205039728U (en) | 2015-08-21 | 2015-08-21 | Direct -current motor speed regulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039728U true CN205039728U (en) | 2016-02-17 |
Family
ID=55298596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520635033.3U Expired - Fee Related CN205039728U (en) | 2015-08-21 | 2015-08-21 | Direct -current motor speed regulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205039728U (en) |
-
2015
- 2015-08-21 CN CN201520635033.3U patent/CN205039728U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20160821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |