CN208675131U - A kind of massage device direct current generator PWM drive circuit - Google Patents
A kind of massage device direct current generator PWM drive circuit Download PDFInfo
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- CN208675131U CN208675131U CN201821274467.5U CN201821274467U CN208675131U CN 208675131 U CN208675131 U CN 208675131U CN 201821274467 U CN201821274467 U CN 201821274467U CN 208675131 U CN208675131 U CN 208675131U
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Abstract
The utility model discloses a kind of massage device direct current generator PWM drive circuits, including transistor Q1, the pin 1 of the transistor Q1, pin 2 and pin 3 are all connected with one end of voltage Vs, the other end of voltage Vs is connected with one end of resistance R1, one end of the pin 4 of the other end and transistor Q1 of resistance R1 is all connected with one end of voltage Vg, one end of the other end connection resistance R2 of voltage Vg, the other end of resistance R2 is connect with the collector of triode Q2, the emitter of triode Q2 is grounded, the base stage of the triode Q2 is connected with one end of resistance R4 and one end of resistance R5, the other end of resistance R5 is grounded, the other end of the resistance R4 is connected with control signal 12V_Motor_PWM.The utility model can open the oscillation intensity of control motor by controlling the PWM duty cycle of direct current generator, and then reach the adjustable effect of vibration, flexibility and the comfort of system are greatly improved, the control voltage of system only has 12V, and human electric shock's accident will not be caused because of electric leakage.
Description
Technical field
The utility model relates to driving circuit technical field more particularly to a kind of massage device direct current generator PWM drive circuits.
Background technique
Most of massage device is massaged using the rotation drive associated mechanisms vibration of motor on the market at present, has plenty of use
Alternating current 220V motor, this safety is lower, once there is drain conditions, there is the danger that electricity is hurted sb.'s feelings, while needing with cunning
Dynamic resistor is adjusted the speed, and is adjusted the speed at high cost；Have plenty of using direct current generator but speed it is uncontrollable, significantly reducing makes
With comfort and flexibility, it cannot like according to individual subscriber and carry out oscillation intensity control.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of massage device direct current proposed
Motor PWM driving circuit.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of massage device direct current generator PWM drive circuit, including transistor Q1, the pin of the transistor Q1
1, pin 2 and pin 3 are all connected with one end of voltage Vs, and the other end of voltage Vs is connected with one end of resistance R1, and resistance R1's is another
One end of the pin 4 of one end and transistor Q1 is all connected with one end of voltage Vg, the other end connection resistance R2's of voltage Vg
The other end of one end, resistance R2 is connect with the collector of triode Q2, the emitter ground connection of triode Q2, the triode Q2's
Base stage is connected with one end of resistance R4 and one end of resistance R5, the other end ground connection of resistance R5, and the other end of the resistance R4 connects
It is connected to control signal 12V_Motor_PWM, pin 5, pin 6, pin 7 and the pin 8 of the transistor Q1 is respectively connected with
One end of voltage Vd, the other end of voltage Vd are connected with one end of resistance R3 and the cathode of diode D1, the anode of diode D1
Ground connection, the other end ground connection of resistance R3, the cathode of diode D1 are connected with the cathode of power supply VCC, the other end of the voltage Vs
It is connected with one end of capacitor C2 and one end of capacitor C1, the other end of capacitor C2 is connected with one end of capacitor C3, and capacitor C3's is another
One end ground connection, the other end ground connection of the capacitor C1, one end of capacitor C1 and one end of capacitor C2 connect with the anode of power supply VCC
It connects.
Preferably, the model SI4835 of the transistor Q1.
Preferably, the resistance value of described resistance R1, R2 and R3 are respectively 10K, 10K and 100K.
Preferably, the model IN4007 of the diode D1.
Preferably, the capacitance of the capacitor C1 is 680uF.
Preferably, the voltage of the power supply VCC is 12V.
Compared with prior art, the utility model has the beneficial effects that can be opened by controlling the PWM duty cycle of direct current generator
The oscillation intensity of motor is controlled, and then reaches the adjustable effect of vibration, greatly improves flexibility and the comfort of system, system
Control voltage only has 12V, and human electric shock's accident will not be caused because of electric leakage.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of massage device direct current generator PWM drive circuit circuit diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1, a kind of massage device direct current generator PWM drive circuit, including transistor Q1, transistor Q1's
Pin 1, pin 2 and pin 3 are all connected with one end of voltage Vs, and the other end of voltage Vs is connected with one end of resistance R1, resistance R1
The other end and one end of pin 4 of transistor Q1 be all connected with one end of voltage Vg, the other end of voltage Vg connects resistance
The other end of one end of R2, resistance R2 is connect with the collector of triode Q2, the emitter ground connection of triode Q2, triode Q2's
Base stage is connected with one end of resistance R4 and one end of resistance R5, the other end ground connection of resistance R5, and the other end of resistance R4 is connected with
Signal 12V_Motor_PWM is controlled, pin 5, pin 6, pin 7 and the pin 8 of transistor Q1 is respectively connected with voltage Vd's
One end, the other end of voltage Vd are connected with one end of resistance R3 and the cathode of diode D1, the plus earth of diode D1, resistance
The other end of R3 is grounded, and the cathode of diode D1 is connected with the cathode of power supply VCC, and the other end of voltage Vs is connected with capacitor C2's
One end of one end and capacitor C1, the other end of capacitor C2 are connected with one end of capacitor C3, the other end ground connection of capacitor C3, capacitor C1
Other end ground connection, one end of capacitor C1 connect with the anode of power supply VCC with one end of capacitor C2, passes through control direct current generator
PWM duty cycle open the oscillation intensity of control motor, and then reach the adjustable effect of vibration, greatly improve system flexibility and
The control voltage of comfort, system only has 12V, and human electric shock's accident will not be caused because of electric leakage.
In the utility model, the model SI4835 of transistor Q1, the resistance value of resistance R1, R2 and R3 be respectively 10K,
The capacitance of the model IN4007 of 10K and 100K, diode D1, capacitor C1 are 680uF, and the voltage of power supply VCC is 12V, is passed through
The PWM duty cycle of control direct current generator opens the oscillation intensity of control motor, and then reaches the adjustable effect of vibration, greatly improves and is
The control voltage of the flexibility of system and comfort, system only has 12V, and human electric shock's accident will not be caused because of electric leakage.
Working principle: being erected using metal-oxide-semiconductor and triode and control driving circuit come PWM, realizes that motor output voltage is big
It is small adjustable, and then realize that motor oscillating intensity is adjustable, under default situations, the motor PWM of MCU controls signal 12V_Motor_PWM
Grid voltage Vg=source voltage Vs=12V, mos pipe for 0V, mos pipe ends, drain voltage Vd=0V, and motor stops turning
Dynamic, when the motor PWM of MCU control signal 12V_Motor_PWM is 5V, the grid voltage Vg of mos pipe presses Vs=12V (R2/
(R1+R2))=6V, Vgs=6V, mos pipe are opened, and drain voltage Vd=12V, motor starts turning, 12V_Motor_PWM signal
Be one between 0 and 5V according to certain frequency change pulse width modulating signal, motor under the control of this signal,
It is carrying out stopping-cycle of rotation rotation with certain frequency, thus is driving whole system vibration, by adjusting the duty of its PWM
Than can achieve the purpose of adjustment oscillation intensity.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of massage device direct current generator PWM drive circuit, including transistor Q1, which is characterized in that three pole of crystal
Pin 1, pin 2 and the pin 3 of pipe Q1 are all connected with one end of voltage Vs, and the other end of voltage Vs is connected with one end of resistance R1,
One end of the pin 4 of the other end and transistor Q1 of resistance R1 is all connected with one end of voltage Vg, and the other end of voltage Vg connects
The other end of one end of connecting resistance R2, resistance R2 is connect with the collector of triode Q2, the emitter ground connection of triode Q2, described
The base stage of triode Q2 is connected with one end of resistance R4 and one end of resistance R5, the other end ground connection of resistance R5, the resistance R4
The other end be connected with control signal 12V_Motor_PWM, pin 5, pin 6, pin 7 and the pin of the transistor Q1
8 are respectively connected with one end of voltage Vd, and the other end of voltage Vd is connected with one end of resistance R3 and the cathode of diode D1, diode
The plus earth of D1, the other end ground connection of resistance R3, the cathode of diode D1 are connected with the cathode of power supply VCC, the voltage Vs
The other end be connected with one end of capacitor C2 and one end of capacitor C1, the other end of capacitor C2 is connected with one end of capacitor C3, electricity
Hold the other end ground connection of C3, the other end ground connection of the capacitor C1, one end of one end of capacitor C1 and capacitor C2 with power supply VCC
Anode connection.
2. a kind of massage device direct current generator PWM drive circuit according to claim 1, which is characterized in that the crystal three
The model SI4835 of pole pipe Q1.
3. a kind of massage device direct current generator PWM drive circuit according to claim 1, which is characterized in that the resistance R1,
The resistance value of R2 and R3 is respectively 10K, 10K and 100K.
4. a kind of massage device direct current generator PWM drive circuit according to claim 1, which is characterized in that the diode
The model IN4007 of D1.
5. a kind of massage device direct current generator PWM drive circuit according to claim 1, which is characterized in that the capacitor C1
Capacitance be 680uF.
6. a kind of massage device direct current generator PWM drive circuit according to claim 1, which is characterized in that the power supply VCC
Voltage be 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821274467.5U CN208675131U (en) | 2018-08-08 | 2018-08-08 | A kind of massage device direct current generator PWM drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821274467.5U CN208675131U (en) | 2018-08-08 | 2018-08-08 | A kind of massage device direct current generator PWM drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208675131U true CN208675131U (en) | 2019-03-29 |
Family
ID=65835826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821274467.5U Expired - Fee Related CN208675131U (en) | 2018-08-08 | 2018-08-08 | A kind of massage device direct current generator PWM drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208675131U (en) |
-
2018
- 2018-08-08 CN CN201821274467.5U patent/CN208675131U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190329 Termination date: 20200808 |