CN205453547U - Two PWM power drive's supersound machine controller - Google Patents
Two PWM power drive's supersound machine controller Download PDFInfo
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- CN205453547U CN205453547U CN201620010552.5U CN201620010552U CN205453547U CN 205453547 U CN205453547 U CN 205453547U CN 201620010552 U CN201620010552 U CN 201620010552U CN 205453547 U CN205453547 U CN 205453547U
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- enhancement mode
- mode nmos
- nmos tube
- inductance
- transformator
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Abstract
The utility model discloses an among the two PWM power drive's supersound machine controller, enhancement mode NMOS pipe Q1 and enhancement mode NMOS pipe Q2 have constituted half -bridge PWM structure jointly, adjust the regulation that realizes exporting supersound motor voltage signal according to external control signal's duty cycle. Enhancement mode NMOS pipe Q3 has constituted jointly with enhancement mode NMOS pipe Q4 and has recommended the PWM structure, adjusts the regulation that supersound motor frequency signal was exported in the realization according to external control signal's duty cycle. Half -bridge PWM structure and recommend the inductance L1 of PWM structure between passing through isolation for output signal does not influence mutually when voltage and power control, has realized independent control between them.
Description
Technical field
This utility model relates to a kind of ultrasound electric machine controller.
Background technology
Supersonic motor is the driving micro machine of a kind of novel concept, it transmits energy not against electromagnetic medium, but the inverse piezoelectric effect of application piezoelectric produces supersonic vibration, is transformed into rotation or the linear motion of rotor by the frictional force between pendulum and moving body.Supersonic motor has low speed high torque, runs noiseless, cuts off self-lock, be not better than the feature of electromagnetic machine by electromagnetic interference etc., therefore have broad application prospects in fields such as precision instrument, optical system, medical device, car electrics, Aero-Space.Appearance along with supersonic motor, the research that supersonic motor drives controller day by day heats up, but non-linear, the impedance operator of time-varying and the amplitude-frequency characteristic due to the vibration of supersonic motor stator, the most also not having accurate mathematical model to retouch, therefore the performance of motor and the driving control system of motor are closely related.
Summary of the invention
Goal of the invention: for above-mentioned prior art, propose the ultrasound electric machine controller that a kind of pair of pwm power drives, it is adaptable to rotary-type ultrasound electric machine, it is achieved the independence of ultrasound electric machine voltage and frequency control signal controls.
Technical scheme: the ultrasound electric machine controller that a kind of pair of pwm power drives, including enhancement mode NMOS tube Q1, enhancement mode NMOS tube Q2 of anti-parallel diodes, enhancement mode NMOS tube Q3 of anti-parallel diodes, enhancement mode NMOS tube Q4 of anti-parallel diodes, inductance L1, inductance L2, inductance L3, electric capacity C1, electric capacity C2 and the transformator T of anti-parallel diodes；nullThe drain electrode of described enhancement mode NMOS tube Q1 meets level VDD，The source electrode of described enhancement mode NMOS tube Q1 is simultaneously connected with drain electrode and one end of inductance L1 of enhancement mode NMOS tube Q2，The source ground of described enhancement mode NMOS tube Q2，The primary coil tap of another termination transformator T of described inductance L1，The primary coil of described electric capacity C1 and transformator T is connected in parallel between the drain electrode of enhancement mode NMOS tube Q3 and the drain electrode of enhancement mode NMOS tube Q4，One end of the secondary coil of described transformator T is connected with one end of inductance L2，The other end of inductance L2 is simultaneously connected with one end and one end of inductance L3 of electric capacity C2，The other end of the secondary coil of described transformator T is connected and as common port with the other end of described electric capacity C2，The other end of described inductance L3 is as the outfan of ultrasound electric machine controller，The grid of described enhancement mode NMOS tube Q1 to Q4 is all connected with external control signal.
Beneficial effect: in the ultrasound electric machine controller of of the present utility model pair of pwm power driving, enhancement mode NMOS tube Q1 and enhancement mode NMOS tube Q2 together constitute half-bridge PWM structure, realize the output regulation to ultrasound electric machine voltage signal according to the duty cycle adjustment of external control signal.Enhancement mode NMOS tube Q3 and enhancement mode NMOS tube Q4 together constitute recommends PWM structure, realizes the output regulation to ultrasound electric machine frequency signal according to the duty cycle adjustment of external control signal.Half-bridge PWM structure and recommend PWM structure pass through between the buffer action of inductance L1 so that output signal does not affects when regulating at voltage and frequency, it is achieved that both independence controls.
Accompanying drawing explanation
Fig. 1 is the ultrasound electric machine controller architecture schematic diagram that double pwm power drives.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is done and further explain.
As shown in Figure 1, the ultrasound electric machine controller that a kind of pair of pwm power drives, including enhancement mode NMOS tube Q1, enhancement mode NMOS tube Q2 of anti-parallel diodes, enhancement mode NMOS tube Q3 of anti-parallel diodes, enhancement mode NMOS tube Q4 of anti-parallel diodes, inductance L1, inductance L2, inductance L3, electric capacity C1, electric capacity C2 and the transformator T of anti-parallel diodes.The drain electrode of enhancement mode NMOS tube Q1 meets level VDD, and the source electrode of enhancement mode NMOS tube Q1 is simultaneously connected with drain electrode and one end of inductance L1 of enhancement mode NMOS tube Q2, the source ground of enhancement mode NMOS tube Q2.The primary coil tap of another termination transformator T of inductance L1, the primary coil of electric capacity C1 and transformator T is connected in parallel between the drain electrode of enhancement mode NMOS tube Q3 and the drain electrode of enhancement mode NMOS tube Q4, one end of the secondary coil of transformator T is connected with one end of inductance L2, and the other end of inductance L2 is simultaneously connected with one end and one end of inductance L3 of electric capacity C2.The other end of the secondary coil of transformator T is connected with the other end of electric capacity C2 and as common port, the other end of inductance L3 is as the outfan of ultrasound electric machine controller.The grid of enhancement mode NMOS tube Q1 to Q4 is all connected with external control signal.
For rotary-type ultrasound electric machine, it is carried in the signal frequency on this type ultrasound electric machine by change, voltage changes the speed of service of ultrasound electric machine, therefore the performance of ultrasound electric machine controller directly affects the performance of motor.In this controller, enhancement mode NMOS tube Q1 and enhancement mode NMOS tube Q2 together constitute half-bridge PWM structure, realize the output regulation to ultrasound electric machine voltage signal according to the duty cycle adjustment of external control signal.Enhancement mode NMOS tube Q3 and enhancement mode NMOS tube Q4 together constitute recommends PWM structure, realizes the output regulation to ultrasound electric machine frequency signal according to the duty cycle adjustment of external control signal.Half-bridge PWM structure and recommend PWM structure pass through between the buffer action of inductance L1 so that output signal does not affects when regulating at voltage and frequency, it is achieved that both independence controls.External control signal is the square-wave signal that the 4 tunnel phase places produced by PWM module look into 90 degree mutually, obtaining, with recommending PWM structure, the bipolar power square wave driving signal that biphase phase contrast is 90 degree through half-bridge PWM structure, the overmatching circuit that stimulates the menstrual flow output high-frequency and high-voltage sinusoidal excitation signal is to ultrasound electric machine.
Transformator T and the resonance circuit having inductance L2, inductance L3, electric capacity C2 to constitute solve resistance matching problem during ultrasound electric machine work, realize the output of constant voltage sine wave signal in the whole operating frequency range of ultrasound electric machine.It is experimentally confirmed, the ultrasound electric machine controller that the of the present utility model pair of pwm power drives can or output voltage one timing certain at output frequency, ultrasound electric machine is respectively provided with preferable linear characteristic and monambiguity, meets the application system mechanical property requirement to ultrasound electric machine.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model principle; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (1)
1. the ultrasound electric machine controller that double pwm powers drive, it is characterised in that: include enhancement mode NMOS tube Q1 of anti-parallel diodes, enhancement mode NMOS tube Q2 of anti-parallel diodes, enhancement mode NMOS tube Q3 of anti-parallel diodes, enhancement mode NMOS tube Q4 of anti-parallel diodes, inductance L1, inductance L2, inductance L3, electric capacity C1, electric capacity C2 and transformator T；nullThe drain electrode of described enhancement mode NMOS tube Q1 meets level VDD，The source electrode of described enhancement mode NMOS tube Q1 is simultaneously connected with drain electrode and one end of inductance L1 of enhancement mode NMOS tube Q2，The source ground of described enhancement mode NMOS tube Q2，The primary coil tap of another termination transformator T of described inductance L1，The primary coil of described electric capacity C1 and transformator T is connected in parallel between the drain electrode of enhancement mode NMOS tube Q3 and the drain electrode of enhancement mode NMOS tube Q4，One end of the secondary coil of described transformator T is connected with one end of inductance L2，The other end of inductance L2 is simultaneously connected with one end and one end of inductance L3 of electric capacity C2，The other end of the secondary coil of described transformator T is connected and as common port with the other end of described electric capacity C2，The other end of described inductance L3 is as the outfan of ultrasound electric machine controller，The grid of described enhancement mode NMOS tube Q1 to Q4 is all connected with external control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620010552.5U CN205453547U (en) | 2016-01-07 | 2016-01-07 | Two PWM power drive's supersound machine controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620010552.5U CN205453547U (en) | 2016-01-07 | 2016-01-07 | Two PWM power drive's supersound machine controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205453547U true CN205453547U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620010552.5U Expired - Fee Related CN205453547U (en) | 2016-01-07 | 2016-01-07 | Two PWM power drive's supersound machine controller |
Country Status (1)
| Country | Link |
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| CN (1) | CN205453547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289784A (en) * | 2019-07-09 | 2019-09-27 | 南京航大超控科技有限公司 | Monophasic pulses if method for controlling speed regulation based on double pwm powers driving topological structure |
-
2016
- 2016-01-07 CN CN201620010552.5U patent/CN205453547U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289784A (en) * | 2019-07-09 | 2019-09-27 | 南京航大超控科技有限公司 | Monophasic pulses if method for controlling speed regulation based on double pwm powers driving topological structure |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20160810 Termination date: 20200107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |