CN204597833U - A kind of motor speed control circuit - Google Patents
A kind of motor speed control circuit Download PDFInfo
- Publication number
- CN204597833U CN204597833U CN201520232769.6U CN201520232769U CN204597833U CN 204597833 U CN204597833 U CN 204597833U CN 201520232769 U CN201520232769 U CN 201520232769U CN 204597833 U CN204597833 U CN 204597833U
- Authority
- CN
- China
- Prior art keywords
- resistance
- chip
- pin
- triode
- diode
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Direct Current Motors (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The utility model discloses a kind of motor speed control circuit, comprise chip U1, chip U2, resistance R1, current rectifying and wave filtering circuit and photoelectrical coupler U3.The utility model motor speed control circuit is by switch element break-make direct voltage, the mode changing make-and-break time ratio changes voltage swing, the rotating speed of motor is controlled with this, this control mode can be level and smooth change motor speed, even reach the effect of variable frequency control, function-stable, structure is simple, cheap, be applicable to promoting the use of.
Description
Technical field
The utility model relates to a kind of alignment circuit, specifically a kind of motor speed control circuit.
Background technology
Mechanical speed governors actuator on existing market is mainly realized by the mechanical structure of complexity, advantage of lower cost, but there is the integrity problem such as response lag, complex structure; And most electronic speed regulation actuator is by gathering tach signal on market, the processing mode controlling motor speed is all extremely complicated, and electric circuit electronics technical element used is many, and control complicated, cost is very high.
Utility model content
The purpose of this utility model is the motor speed control circuit providing a kind of smooth speed control, structure simple, with low cost, 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 motor speed control circuit, comprise chip U1, chip U2, resistance R1, current rectifying and wave filtering circuit and photoelectrical coupler U3, described resistance R1 one end connects power supply VCC respectively, chip U1 pin 4, chip U1 pin 8, resistance R3, resistance R4, resistance R5, photoelectrical coupler U3 pin 1, chip U2 pin 4 and chip U2 pin 8, the resistance R1 other end is contact resistance R2 and chip U1 pin 7 respectively, the resistance R2 other end connects ground capacity C1 respectively, chip U1 pin 2 and chip U1 pin 6, chip U1 pin 1 connects electric capacity C2 and ground connection, the electric capacity C2 other end connects chip U1 pin 5, chip U1 pin 3 is the contact resistance R3 other end and chip U2 pin 2 respectively, the described resistance R4 other end connects ground capacity C3 respectively, chip U2 pin 6 and chip U2 pin 7, chip U2 pin 1 connects electric capacity C4 and ground connection, chip U2 pin 5 connects the electric capacity C4 other end, chip U2 pin 3 is the contact resistance R5 other end and not gate F1 input respectively, not gate F1 output connects photoelectrical coupler U3 pin 2, photoelectrical coupler U3 pin 3 connecting triode VT1 base stage, triode VT1 collector electrode connects diode D1 negative pole and resistance R7 respectively, the resistance R7 other end is contact resistance R6 and triode VT2 base stage respectively, described diode D1 positive pole connects diode D2 positive pole and electric capacity C6 respectively, electric capacity C6 other end connecting triode VT4 base stage, triode VT4 collector electrode connects diode D2 negative pole and resistance R11 respectively, the resistance R11 other end is contact resistance R13 respectively, triode VT5 base stage, diode D3 negative pole and triode VT3 emitter, triode VT3 base stage is by resistance R9 connecting triode VT2 collector electrode, triode VT2 emitter is the contact resistance R6 other end respectively, resistance R10 and rectification filter circuit output end 1, described triode VT4 emitter is connecting triode VT5 base stage and resistance R12 respectively, the resistance R12 other end connects rectification filter circuit output end 2, described triode VT5 collector electrode is contact resistance R15 respectively, diode D5 positive pole and diode D4 negative pole, diode D4 positive pole is connecting triode VT6 emitter respectively, resistance R14, diode D6 negative pole and motor M, the resistance R14 other end is connecting triode VT5 emitter respectively, triode VT6 base stage and diode D3 positive pole, described diode D5 negative pole is the contact resistance R15 other end and electric capacity C7 respectively, electric capacity C7 other end contact resistance R8, the resistance R8 other end connects photoelectrical coupler U3 pin 4 and electric capacity C5 respectively, the electric capacity C5 other end is connecting triode VT1 emitter and triode VT5 emitter respectively, described diode D6 positive pole connects the motor M other end.
As further program of the utility model: described chip U1 and chip U2 model are MC14049B.
As the utility model further scheme: described photoelectrical coupler U3 model is 4N25.
Compared with prior art, the beneficial effects of the utility model are: the utility model motor speed control circuit is by switch element break-make direct voltage, the mode changing make-and-break time ratio changes voltage swing, control the rotating speed of motor with this, the change motor speed that this control mode can be level and smooth, even reaches the effect of variable frequency control, function-stable, structure is simple, cheap, is applicable to promoting the use of.
Accompanying drawing explanation
Fig. 1 is a kind of circuit diagram of motor speed control 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, in the utility model embodiment, a kind of motor speed control circuit, comprise chip U1, chip U2, resistance R1, current rectifying and wave filtering circuit and photoelectrical coupler U3, resistance R1 one end connects power supply VCC respectively, chip U1 pin 4, chip U1 pin 8, resistance R3, resistance R4, resistance R5, photoelectrical coupler U3 pin 1, chip U2 pin 4 and chip U2 pin 8, the resistance R1 other end is contact resistance R2 and chip U1 pin 7 respectively, the resistance R2 other end connects ground capacity C1 respectively, chip U1 pin 2 and chip U1 pin 6, chip U1 pin 1 connects electric capacity C2 and ground connection, the electric capacity C2 other end connects chip U1 pin 5, chip U1 pin 3 is the contact resistance R3 other end and chip U2 pin 2 respectively, the resistance R4 other end connects ground capacity C3 respectively, chip U2 pin 6 and chip U2 pin 7, chip U2 pin 1 connects electric capacity C4 and ground connection, chip U2 pin 5 connects the electric capacity C4 other end, chip U2 pin 3 is the contact resistance R5 other end and not gate F1 input respectively, not gate F1 output connects photoelectrical coupler U3 pin 2, photoelectrical coupler U3 pin 3 connecting triode VT1 base stage, triode VT1 collector electrode connects diode D1 negative pole and resistance R7 respectively, the resistance R7 other end is contact resistance R6 and triode VT2 base stage respectively, diode D1 positive pole connects diode D2 positive pole and electric capacity C6 respectively, electric capacity C6 other end connecting triode VT4 base stage, triode VT4 collector electrode connects diode D2 negative pole and resistance R11 respectively, the resistance R11 other end is contact resistance R13 respectively, triode VT5 base stage, diode D3 negative pole and triode VT3 emitter, triode VT3 base stage is by resistance R9 connecting triode VT2 collector electrode, triode VT2 emitter is the contact resistance R6 other end respectively, resistance R10 and rectification filter circuit output end 1, triode VT4 emitter is connecting triode VT5 base stage and resistance R12 respectively, the resistance R12 other end connects rectification filter circuit output end 2, triode VT5 collector electrode is contact resistance R15 respectively, diode D5 positive pole and diode D4 negative pole, diode D4 positive pole is connecting triode VT6 emitter respectively, resistance R14, diode D6 negative pole and motor M, the resistance R14 other end is connecting triode VT5 emitter respectively, triode VT6 base stage and diode D3 positive pole, diode D5 negative pole is the contact resistance R15 other end and electric capacity C7 respectively, electric capacity C7 other end contact resistance R8, the resistance R8 other end connects photoelectrical coupler U3 pin 4 and electric capacity C5 respectively, the electric capacity C5 other end is connecting triode VT1 emitter and triode VT5 emitter respectively, diode D6 positive pole connects the motor M other end.
Chip U1 and chip U2 model are MC14049B.
Photoelectrical coupler U3 model is 4N25.
Operation principle of the present utility model is: the utility model motor speed control circuit is by switch element break-make direct voltage, the mode changing make-and-break time ratio changes voltage swing, the rotating speed of motor is controlled with this, refer to Fig. 1, chip U1 is oscillator, chip U2 is monostable multivibrator, control signal is through photoelectrical coupler U3, the power transistor module comprising triode VT5 and triode VT6 is controlled after triode VT2 ~ VT4 amplifies, the voltage on direct current machine M is added in by power transistor module, in the power-off pair controlling break-make, electric current flows through sustained diode 6 and continues circulation, smoothly motor M rotating speed is changed with this.
Claims (3)
1. a motor speed control circuit, comprise chip U1, chip U2, resistance R1, current rectifying and wave filtering circuit and photoelectrical coupler U3, it is characterized in that, described resistance R1 one end connects power supply VCC respectively, chip U1 pin 4, chip U1 pin 8, resistance R3, resistance R4, resistance R5, photoelectrical coupler U3 pin 1, chip U2 pin 4 and chip U2 pin 8, the resistance R1 other end is contact resistance R2 and chip U1 pin 7 respectively, the resistance R2 other end connects ground capacity C1 respectively, chip U1 pin 2 and chip U1 pin 6, chip U1 pin 1 connects electric capacity C2 and ground connection, the electric capacity C2 other end connects chip U1 pin 5, chip U1 pin 3 is the contact resistance R3 other end and chip U2 pin 2 respectively, the described resistance R4 other end connects ground capacity C3 respectively, chip U2 pin 6 and chip U2 pin 7, chip U2 pin 1 connects electric capacity C4 and ground connection, chip U2 pin 5 connects the electric capacity C4 other end, chip U2 pin 3 is the contact resistance R5 other end and not gate F1 input respectively, not gate F1 output connects photoelectrical coupler U3 pin 2, photoelectrical coupler U3 pin 3 connecting triode VT1 base stage, triode VT1 collector electrode connects diode D1 negative pole and resistance R7 respectively, the resistance R7 other end is contact resistance R6 and triode VT2 base stage respectively, described diode D1 positive pole connects diode D2 positive pole and electric capacity C6 respectively, electric capacity C6 other end connecting triode VT4 base stage, triode VT4 collector electrode connects diode D2 negative pole and resistance R11 respectively, the resistance R11 other end is contact resistance R13 respectively, triode VT5 base stage, diode D3 negative pole and triode VT3 emitter, triode VT3 base stage is by resistance R9 connecting triode VT2 collector electrode, triode VT2 emitter is the contact resistance R6 other end respectively, resistance R10 and rectification filter circuit output end 1, described triode VT4 emitter is connecting triode VT5 base stage and resistance R12 respectively, the resistance R12 other end connects rectification filter circuit output end 2, described triode VT5 collector electrode is contact resistance R15 respectively, diode D5 positive pole and diode D4 negative pole, diode D4 positive pole is connecting triode VT6 emitter respectively, resistance R14, diode D6 negative pole and motor M, the resistance R14 other end is connecting triode VT5 emitter respectively, triode VT6 base stage and diode D3 positive pole, described diode D5 negative pole is the contact resistance R15 other end and electric capacity C7 respectively, electric capacity C7 other end contact resistance R8, the resistance R8 other end connects photoelectrical coupler U3 pin 4 and electric capacity C5 respectively, the electric capacity C5 other end is connecting triode VT1 emitter and triode VT5 emitter respectively, described diode D6 positive pole connects the motor M other end.
2. motor speed control circuit according to claim 1, is characterized in that, described chip U1 and chip U2 model are MC14049B.
3. motor speed control circuit according to claim 1, is characterized in that, described photoelectrical coupler U3 model is 4N25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520232769.6U CN204597833U (en) | 2015-04-12 | 2015-04-12 | A kind of motor speed control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520232769.6U CN204597833U (en) | 2015-04-12 | 2015-04-12 | A kind of motor speed control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204597833U true CN204597833U (en) | 2015-08-26 |
Family
ID=53933940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520232769.6U Expired - Fee Related CN204597833U (en) | 2015-04-12 | 2015-04-12 | A kind of motor speed control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204597833U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106843302A (en) * | 2016-11-28 | 2017-06-13 | 林桂清 | A kind of agricultural machinery expanding unit |
-
2015
- 2015-04-12 CN CN201520232769.6U patent/CN204597833U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106843302A (en) * | 2016-11-28 | 2017-06-13 | 林桂清 | A kind of agricultural machinery expanding unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204597833U (en) | A kind of motor speed control circuit | |
| CN203675019U (en) | Drive circuit of brushless motor | |
| CN204046477U (en) | A kind of measuring pump stepper motor driving circuit | |
| CN204304853U (en) | A kind of elevator starts and brake control circuit | |
| CN204155153U (en) | A kind of motors of metering pumps control system | |
| CN204633657U (en) | A kind of DC motor speed-regulating circuit | |
| CN204498405U (en) | Based on the LED drive system that bootstrapping controls | |
| CN209638067U (en) | A kind of processing of brushless electronic fan PWM speed-regulating signal and stand-by circuit | |
| CN205647316U (en) | High stability motor timing control ware | |
| CN205545038U (en) | Direct current motor speed regulation controller | |
| CN203532289U (en) | Intelligent temperature controller circuit for computer case | |
| CN204335056U (en) | Based on the LED bootstrapping control system of Linear Driving | |
| CN206221326U (en) | A kind of gear circuit of blower fan negative pole three based on metal-oxide-semiconductor reverse connecting protection | |
| CN205533377U (en) | Computer intelligence radiator fan of USB power supply | |
| CN204616157U (en) | A kind of photo-electric control power saving apparatus based on bistable trigger-action circuit | |
| CN204442743U (en) | Bootstrapping based on phase shift process controls LED drive system | |
| CN204652206U (en) | A kind of power-switching circuit | |
| CN204717814U (en) | A kind of SCM Based energy-conserving and environment-protective smoke exhaust ventilator | |
| CN204316393U (en) | A kind of Direct Current Governor System based on double-closed-loop control | |
| CN204349849U (en) | A kind of bidirectional, dc electric machine control system based on DSP | |
| CN204718643U (en) | A kind of green house of vegetables humiture transfinites comprehensive alarm device | |
| CN204614733U (en) | A kind of bistable state trigger-type photo-electric control power saving apparatus based on phase shift process | |
| CN204465923U (en) | Based on the great power LED drive system of Linear Driving | |
| CN204244073U (en) | A kind of controllable direct current power supply circuit | |
| CN204652274U (en) | A kind of motor constant speed control circuit |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160412 |