CN105071693B - A kind of supersonic motor drives match circuit and adapts to the driving method of wide temperature range - Google Patents
A kind of supersonic motor drives match circuit and adapts to the driving method of wide temperature range Download PDFInfo
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- CN105071693B CN105071693B CN201510518812.XA CN201510518812A CN105071693B CN 105071693 B CN105071693 B CN 105071693B CN 201510518812 A CN201510518812 A CN 201510518812A CN 105071693 B CN105071693 B CN 105071693B
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Abstract
A kind of supersonic motor drives match circuit and adapts to the driving method of wide temperature range, and circuit includes voltage-regulator diode D1, D2, electric capacity C1, inductance L1, L2；Drive signal main track is respectively connected to one end of electric capacity C1 and the negative electrode of voltage-regulator diode D1；The anode of voltage-regulator diode D1 is connected to the anode of voltage-regulator diode D2, and the other end of electric capacity C1 is respectively connected to the negative electrode of one end of inductance L1, one end of inductance L2 and voltage-regulator diode D2；The other end of inductance L1 is respectively connected to one end of drive signal loop line and motor；Another other end for being connected to supersonic motor of inductance L2.Circuit form of the present invention is have certain gain to voltage amplitude using duopole resonance step-up circuit.The circuit has quasi- band-pass function amplitude in ultrasound drive frequency relatively flat.Inhibit the triple-frequency harmonics (suppression of 13dB can be reached) of drive signal to realize square wave well simultaneously and be converted to sine wave.
Description
Technical field
Wide temperature range (environment temperature is adapted to the present invention relates to one kind：- 40~+75 DEG C) supersonic motor drive matching electricity
Road and method.
Background technology
In lunar exploration the third stage of the project, lunar orbital rendezvous dock microwave radar because power consumption, weight demands are harsh.Main frame day
Supersonic motor is employed after line generalization the two factors., because of small volume, small power consumption is extensively using various electricity for supersonic motor
The new high-tech industries such as sub- equipment, precision instrument.
Supersonic motor itself direct capacitance is understood variation with temperature and is changed so as to influence the driving voltage of drive circuit
Amplitude.Therefore direct capacitance must be corrected during design driven match circuit to driving the influence of match circuit.It is current domestic and international
Popular driving match circuit mainly has LCC forms, LC forms, LLCC forms, and these formal driving match circuits are not
Influence of the direct capacitance to drive signal can be solved, so as to not adapt to the application of temperature range wide.Other supersonic motor
At low temperature torque can decline therefore also need under low temperature driving voltage will height, therefore the problem of heat consumption needs low electricity again under high temperature
Pressure, it is therefore desirable to which a kind of parametric technique for designing and adapting to this demand is provided.
The content of the invention
Technology solve problem of the invention is：In view of the shortcomings of the prior art, there is provided a kind of to adapt to the super of wide temperature range
Sound wave motor drives match circuit and driving method.
Technical solution of the invention is：A kind of supersonic motor driving match circuit, including voltage-regulator diode D1,
D2, electric capacity C1, inductance L1, L2；Drive signal main track is respectively connected to one end of electric capacity C1 and the negative electrode of voltage-regulator diode D1；Surely
The anode of pressure diode D1 is connected to the anode of voltage-regulator diode D2, and the other end of electric capacity C1 is respectively connected to one end of inductance L1, electricity
Feel one end of L2 and the negative electrode of voltage-regulator diode D2；The other end of inductance L1 is respectively connected to the one of drive signal loop line and motor
End；Another other end for being connected to supersonic motor of inductance L2.
Described inductance L1, L2 uses magnet ring coiling inductance.
A kind of supersonic motor driving method for adapting to wide temperature range, the lower limit of described wide temperature range is referred to as low temperature, on
Limit is referred to as high temperature, realizes driving by installing above-mentioned drive circuit between the drive signal main track and loop line of supersonic motor,
Each component value in drive circuit determines that step is as follows：
(1) measurement supersonic motor direct capacitance C0 and resonant frequency f at low temperature0；
(2) according to the voltage amplitude Vpp under supersonic motor low temperature, the amplitude Vpp_drive of input drive signal is calculated
Gain
(3) pass throughCalculate the value of inductance L2；
(4) pass throughCalculate the value of inductance L1；
(5) pass throughCalculate the value of electric capacity C1；
(6) pressure drop at measurement electric capacity C1 two ends, selects voltage-regulator diode so that the voltage stabilizing value of voltage-regulator diode is more than C1 two
The pressure drop at end..
Increase step (5.1) between step (5) and step (6)：Reduce the value of electric capacity C1, pass through
The value of inductance L1 is recalculated, then the value of inductance L2 is calculated by L2=L1 (G-1).
The present invention has the following advantages that compared with prior art：
(1) circuit form of the present invention is using duopole resonance step-up circuit, by one-level high pass resonance step-up circuit and one
Level low pass resonance step-up circuit connected in series composition has certain gain to voltage amplitude.The circuit has quasi- band-pass function in ultrasound
Amplitude is relatively flat in driving frequency.The triple-frequency harmonics (suppression of 13dB can be reached) of drive signal is inhibited simultaneously well
Realize square wave and be converted to sine wave.
(2) circuit of the present invention can be realized protecting circuit without motor mistiming hair drive signal using back to back diode
Shield.
(3) the inventive method can realize high voltage when output low-voltage, low temperature during electromotor high-temperature, both met motor and existed
Application in wide temperature range also provides the working life and reliability of motor.
Brief description of the drawings
Fig. 1 is circuit diagram of the present invention；
Fig. 2 is the amplitude versus frequency characte of LPF；
Fig. 3 is the amplitude versus frequency characte of high-pass filtering circuit；
Fig. 4 is the artificial circuit figure provided according to the present invention；
The practical circuit figure that Fig. 5 is realized for the mentality of designing provided according to the present invention.
Specific embodiment
The present invention is described further with reference to accompanying drawing just below.
It is as shown in Figure 1 present invention reality schematic diagram.Drive signal main track is respectively connected to one end and the voltage stabilizing two of electric capacity C1
The negative electrode of pole pipe D1；The other end of electric capacity C1 is respectively connected to one end of inductance L1, one end of inductance L2 and voltage-regulator diode D2
Negative electrode；The other end of inductance L1 is respectively connected to one end of drive signal loop line and motor；The another of inductance L2 is connected to ultrasound
The other end of ripple motor.The anode of voltage-regulator diode D1 is connected to the anode of voltage-regulator diode D2.In order to the Q values for improving circuit are advised
Use magnet ring coiling inductance.
Two-stage resonance step-up circuit connected necessarily circuit possess two limits, a limit<Mono- pole of 40kHz
Point>40kHz, due to the equivalent circuit characteristic of motor, therefore motor is suitable as the electric capacity of low pass resonance circuit and uses.To ensure
Low temperature high voltage high temperature and low voltage should be the resonant frequency of the low temperature resonance point in the motor of low pass resonance circuit.Therefore just can be with
Resonant frequency according to low temperature static capacitor's capacity and low temperature electric machine directly calculates the inductance value of the inductance of low pass filter.Work as temperature
The gain of the resonance point of low pass resonance circuit toward frequency movement so low pass resonance circuit in direction high constantly increases when degree is reduced
Plus therefore voltage amplitude is raised as shown in Fig. 2 the resonance point of circuit is moved so toward the low direction of frequency when the temperature increases
Voltage amplitude is just reduced.The signal frequency of supersonic motor work should be operated between the resonance point of high pass resonance and passband, no
Then device parameter shift can bring the serious change of gain.The resonance point of high pass resonance circuit should<40kHz.High pass resonance
Circuit is mainly used in the gain of quasi-complement low pass resonance circuit and realizes quasi- band logical effect, and its amplitude-frequency is special as shown in Figure 3.According to height
The yield value of the lower desired voltage signal of temperature suitably adjusts the parameter of high pass resonance circuit so that electric motor starting voltage is expired under low temperature
Foot is required.
Based on above-mentioned analysis, the present invention provides a kind of supersonic motor driving method for adapting to wide temperature range, described width
The lower limit of warm scope is referred to as low temperature, and the upper limit is referred to as high temperature, crosses and is installed between the drive signal main track and loop line of supersonic motor
Above-mentioned drive circuit is realized driving, and each component value in drive circuit determines that step is as follows：
(1) measurement supersonic motor direct capacitance C0 and resonant frequency f at low temperature0；
(2) according to the voltage amplitude Vpp under supersonic motor low temperature, the amplitude Vpp_drive of input drive signal is calculated
Gain
(3) pass throughCalculate the value of inductance L2；
(4) pass throughCalculate the value of inductance L1；
(5) pass throughCalculate the value of electric capacity C1；
(6) pressure drop at measurement electric capacity C1 two ends, selects voltage-regulator diode so that the voltage stabilizing value of voltage-regulator diode is more than C1 two
The pressure drop at end..
Increase step (5.1) between step (5) and step (6)：The value of increase electric capacity C1, passes through
The value of inductance L1 is recalculated, then the value of inductance L2 is calculated by L2=L1 (G-1).
(6) pressure drop for measuring electric capacity C1 two ends by workbench, multisim (as shown in Figure 4) simulation software (also may be used
To calculate the pressure drop at C1 two ends by matlab softwares), select voltage-regulator diode so that the voltage stabilizing value of voltage-regulator diode is more than C1
The pressure drop at two ends.
Embodiment
Driving chip uses LMD18200, and transformer voltage ratio is 1:5, the design load of electric capacity and inductance is as shown in Figure 5.The electricity
Road can well realize the driving to supersonic motor and pass through experimental verification.The current circuit is applied to wound connection
On USM45 motors, -40 DEG C~75 DEG C of use scope is adapted to.
Unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (4)
1. a kind of supersonic motor drives match circuit, it is characterised in that：Including voltage-regulator diode D1, D2, electric capacity C1, inductance
L1、L2；Drive signal main track is respectively connected to one end of electric capacity C1 and the negative electrode of voltage-regulator diode D1；The sun of voltage-regulator diode D1
Pole is connected to the anode of voltage-regulator diode D2, the other end of electric capacity C1 be respectively connected to one end of inductance L1, one end of inductance L2 and
The negative electrode of voltage-regulator diode D2；The other end of inductance L1 is respectively connected to one end of drive signal loop line and motor；Inductance L2's is another
One end is connected to the other end of supersonic motor.
2. a kind of supersonic motor according to claim 1 drives match circuit, it is characterised in that：Described inductance L1,
L2 uses magnet ring coiling inductance.
3. a kind of supersonic motor driving method for adapting to wide temperature range, the lower limit of described wide temperature range is referred to as low temperature, the upper limit
Referred to as high temperature, it is characterised in that：Installed described in claim 1 by between the drive signal main track and loop line of supersonic motor
Driving match circuit realize driving, each component value in drive circuit determines that step is as follows：
(1) measurement supersonic motor direct capacitance C0 and resonant frequency f at low temperature0；
(2) according to the voltage amplitude Vpp under supersonic motor low temperature, the amplitude Vpp_drive of input drive signal calculates gain
(3) pass throughCalculate the value of inductance L2；
(4) pass throughCalculate the value of inductance L1；
(5) pass throughCalculate the value of electric capacity C1；
(6) pressure drop at measurement electric capacity C1 two ends, selects voltage-regulator diode so that the voltage stabilizing value of voltage-regulator diode is more than C1 two ends
Pressure drop.
4. it is according to claim 3 it is a kind of adapt to wide temperature range supersonic motor driving method, it is characterised in that：In step
Suddenly step (5.1) is increased between (5) and step (6)：The value of increase electric capacity C1, passes throughAgain
The value of inductance L1 is calculated, then the value of inductance L2 is calculated by L2=L1 (G-1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518812.XA CN105071693B (en) | 2015-08-21 | 2015-08-21 | A kind of supersonic motor drives match circuit and adapts to the driving method of wide temperature range |
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| CN201510518812.XA CN105071693B (en) | 2015-08-21 | 2015-08-21 | A kind of supersonic motor drives match circuit and adapts to the driving method of wide temperature range |
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| CN105071693A CN105071693A (en) | 2015-11-18 |
| CN105071693B true CN105071693B (en) | 2017-05-31 |
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| CN112204864A (en) * | 2019-08-29 | 2021-01-08 | 深圳市大疆创新科技有限公司 | Drive circuit, drive circuit board and driver |
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| US6304460B1 (en) * | 2000-05-05 | 2001-10-16 | Slobodan Cuk | Switching DC-to-DC converter utilizing a soft switching technique |
| FR2846485B1 (en) * | 2002-10-23 | 2005-01-28 | Renault Sa | DEVICE FOR ELECTRONICALLY CONTROLLING AN ULTRASONIC PIEZOELECTRIC ACTUATOR |
| CN102097972B (en) * | 2011-02-15 | 2013-06-19 | 南京航空航天大学 | Resonance device used in driver of piezoelectric actuator |
| CN202424571U (en) * | 2012-01-12 | 2012-09-05 | 河南科技大学 | Ultrasonic motor control circuit |
| CN103567134B (en) * | 2013-11-11 | 2016-01-13 | 河海大学常州校区 | The coalignment of ultrasonic-frequency power supply and matching process thereof |
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