CN105429506B - More level driver circuit for piezoelectric ceramics and its drive control method - Google Patents
More level driver circuit for piezoelectric ceramics and its drive control method Download PDFInfo
- Publication number
- CN105429506B CN105429506B CN201510908904.9A CN201510908904A CN105429506B CN 105429506 B CN105429506 B CN 105429506B CN 201510908904 A CN201510908904 A CN 201510908904A CN 105429506 B CN105429506 B CN 105429506B
- Authority
- CN
- China
- Prior art keywords
- voltage
- level
- module
- low
- grades
- 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.)
- Active
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title abstract description 7
- 230000003321 amplification Effects 0.000 claims abstract description 17
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 17
- 230000005611 electricity Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004621 scanning probe microscopy Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/06—Drive circuits; Control arrangements or methods
Landscapes
- Dc-Dc Converters (AREA)
- Amplifiers (AREA)
Abstract
The present invention provides one kind to be suitable for high-power more level driver circuit for piezoelectric ceramics and its drive control method.More level driver circuit for piezoelectric ceramics according to the present invention, including：N grades of more level cascade modules, n grades of more level cascade modules include being sequentially connected in series setting, and busbar voltage is respectively E, 2E, 4E ... 2n‑1The n multi-level-cell of E, E is differentiates voltage；Fixed voltage DC Module is connected in series in the output terminal of n grades of more level cascade modules；Push-pull type amplification module, high-voltage side are connected to fixed voltage DC Module high-voltage output terminal UH, and low voltage side is connected to the low-voltage output end UL of fixed voltage DC Module.For the present invention by using the cascade mode of the more level of anisobaric, realization exports the voltage of high scope with low-voltage device, and the working frequency of switching tube can be reduced with the frequency of output voltage and be reduced, and reduce the switching loss of switching tube；The power attenuation of push-pull type amplification module can also be greatly reduced simultaneously, improve its efficiency.
Description
Technical field
The present invention relates to drive areas, are controlled in particular to a kind of more level driver circuit for piezoelectric ceramics and its driving
Method processed.
Background technology
In recent years, demand of the fields such as industry, aerospace, biology to high accuracy positioning and actuation techniques is more and more apparent, example
Such as scanning probe microscopy, axis Nano-positioners and vibration control system, it is especially higher and higher to nanotechnology demand.
One of scheme of nanotechnology is as executing agency using piezoelectric actuator.
Driving circuit based on more level blocks also applies to the high drive of piezoelectric actuator gradually, big absolutely at present
Most more level driving circuits are all isobaric multi-level-cells.
Invention content
The present invention is intended to provide one kind is suitable for powerful more level driver circuit for piezoelectric ceramics and its drive control side
Method.
The present invention is while the output voltage range for ensureing more level driving circuits, in output low frequency voltage or static state
During output, the switching number of multi-level-cell switching tube can be reduced to the greatest extent, to reduce the switch of switching tube damage
Consumption, and its modulator approach is made to become simpler direct, it is proposed that a kind of successive approximation multi-level high-voltage driving strategy.The driving
Strategy uses the modulator approach of the more level blocks of anisobaric and Approach by inchmeal, and the two-way voltage exported gives push-pull type amplifying circuit
Power supply.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of successive approximation multi-level high-voltage driving strategy, drives including the more level topologys of anisobaric and successive approximation
Strategy.The output of the topology of the more level of anisobaric is connected to push-pull type amplification module, powers for it；Push-pull type amplifying circuit is driving
Under the driving of signal, the voltage of generation directly drives piezoelectric ceramic actuator work；It is each according to successive approximation driving plan control
The switching tube work of a multi-level circuit module, can obtain desired two output voltage.
The more level topologys of anisobaric include fixed voltage DC Module and n grades of more level cascade modules, fixed voltage direct current
Module is located at the output terminal of the more level topologys of anisobaric, and is connect with n grades of more level cascade modules by series system.Fixed electricity
The voltage of straightening flow module is Ud, and anode and cathode are respectively the high voltage output UH and low-voltage of the more level topologys of anisobaric
UL is exported, this two output voltage is connected to the high-voltage side and low voltage side of push-pull type amplification module, powers for it, in this way may be used
To greatly reduce the power attenuation of push-pull type amplification module, its efficiency is improved.N more level lists of n grades of more level cascade modules
The busbar voltage of member is respectively E, 2E, 4E ... 2n-1E, and they are sequentially connected in series, then the output of n grades of more level cascade modules
Voltage range is 0~(2n-1) E.By adjusting the size of E, the resolution ratio of more level topology output voltages is can adjust, is selected more
The size of level series n can adjust the range of more level topology output voltages.Such more level topological structures of anisobaric,
Only when output voltage needs to change, switching tube just carries out switching manipulation, when output low frequency voltage, multi-level-cell switching tube
It is operated in low frequency；When Static output, switching tube does not need to carry out switching manipulation, can reduce the switch damage of switching tube in this way
Consumption.
Successive approximation driving strategy, is that desired output voltage Uexp is converted into n bits, n bits
I-th bit correspond to i-th of multi-level-cell switching tube working condition, 0 represent upper tube shutdown and down tube it is open-minded, 1 represent on
Pipe is opened and down tube turns off.The first step calculates the value of Uexp/E, obtains integer Sint, Sint and represents n grades of more level cascade modules
Sint*E is exported altogether to match desired output voltage Uexp.Second step, to Sint carry out Binary Conversion, obtain n positions two into
Number Sbit processed.0~n-1 according to Sbit correspond to the switch plumber of 0~n-1 grades of multi-level circuit modules of control respectively
Make, desired output voltage can be obtained, such modulator approach becomes simpler direct.
Description of the drawings
The attached drawing for forming the part of the application is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the anisobaric multi-level high-voltage drive circuit schematic diagram of the present invention；
Fig. 2 is the block diagram of the successive approximation driving strategy of the present invention；
Fig. 3 is the output voltage schematic diagram of the present invention.
Specific embodiment
The specific embodiment of the present invention is described in further details below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of anisobaric of successive approximation anisobaric multi-level high-voltage driving strategy disclosed by the invention
Multi-level high-voltage driving circuit, the anisobaric multi-level high-voltage driving circuit include fixed voltage DC Module, n grades of more level
Cascade module and push-pull type amplification module.Wherein, n grades of more level cascade modules pass through series system with fixed voltage DC Module
Connection, the two-way voltage output of fixed voltage DC Module are connected to push-pull type amplification module, and push-pull type amplification module is not as
The output terminal of isobaric multi-level high-voltage driving circuit.
The voltage of the fixed voltage DC Module is Ud, and anode and cathode are respectively the height of the more level topologys of anisobaric
Voltage output UH and low-voltage output UL, this two output voltage are connected to the high-voltage side and low-voltage of push-pull type amplification module
Side powers for it.
The push-pull type amplification module is by drive signal VdrDriving generates output voltage UO, to directly drive piezoelectric ceramics
Actuator.The voltage follow drive signal V of UOdrVariation and change, but be exaggerated output power.By adjusting VdrVoltage
The output voltage UO of push-pull type amplification module can be adjusted.
The busbar voltage of n multi-level-cell of n grades of more level cascade modules is respectively E, 2E, 4E ... 2n-1E, and
They are sequentially connected in series, then the output voltage range of n grades of more level cascade modules is 0~(2n-1) E.
The transformable minimum voltage of output voltage is E, by adjusting the size of E, you can adjusts more level topology output electricity
The resolution ratio of pressure selects the size of more level series n, can adjust the range of more level topology output voltages.To select E=5V, n
For=8, ranging from 0V~1275V of output voltage, resolution ratio 5V.
As shown in Fig. 2, successive approximation driving strategy disclosed by the invention, in order to which desired output voltage Uexp is converted into
The control signal of each multi-level-cell switching tube is controlled, the successive approximation driving strategy carries out as follows.
The first step calculates the value of Uexp/E, obtains integer Sint, and Sint represents n grades of more level cascade modules and to export altogether
Sint*E matches desired output voltage Uexp.
Second step carries out Binary Conversion to Sint, obtains n bits Sbit.
Third walks, and 0~n-1 roads control signal g, and g [i]=Sbit [i] are generated respectively according to 0~n-1 of Sbit.
4th step, control signal g [i] control the switching tube work of multi-level-cell i, as g [i]=1, corresponding more level
The upper tube of unit is opened and down tube turns off, on the contrary, as g [i]=0, the upper tube of corresponding multi-level-cell turns off and down tube is open-minded.
Desired output voltage can so be obtained.
It is illustrated in figure 3 the more level topology output voltage schematic diagrames of anisobaric, high voltage output UH and low-voltage
It exports UL and gradually increases and reduce with minimum change voltage E, and the moment maintains the voltage difference that size is Ud.Due to anisobaric
The high voltage output UH and low-voltage output UL of more level topologys is that the high-voltage side of push-pull type amplification module and low voltage side supply
Electricity, it is ensured that whenever UH is not overlapped in size with UL, and when multiple switch pipe carries out switching manipulation together,
It can not ensure switching tube absolutely while open or turn off, then require Ud>E.To make push-pull type amplification module when controlling output
There are enough margin voltages, when choosing E=5V, margin voltage as 5V, Ud=10V may be selected.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
1st, using the cascade mode of the more level of anisobaric, the voltage of high scope can be exported with low-voltage device, switching tube
Working frequency can be reduced with the frequency of output voltage and be reduced, and reduce the switching loss of switching tube.
2nd, it is powered with the two-way adjustable voltage with fixed voltage difference to push-pull type amplification module, can greatly reduce and recommend
The power attenuation of formula amplification module improves its efficiency.
3rd, using the modulator approach of Approach by inchmeal, its modulation is made to become simpler direct.
4th, during Static output, because without the switching manipulation of switching tube, output voltage does not have high-frequency harmonic, does not need to
Filtering.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (2)
- It is 1. a kind of applied to aerospace, more level driver circuit for piezoelectric ceramics of biological field, which is characterized in that including n grades mostly electric Flat cascade module, fixed voltage DC Module and push-pull type amplification module；N grades of more level cascade modules include being sequentially connected in series setting, and busbar voltage is respectively E, 2E, 4E ... 2n-1N of E Multi-level-cell, E is differentiates voltage；The fixed voltage DC Module is connected in series in the output terminal of described n grades more level cascade modules；The high-voltage side of the push-pull type amplification module is connected to fixed voltage DC Module high-voltage output terminal UH, low-voltage Side is connected to the low-voltage output end UL of fixed voltage DC Module；What each multi-level-cell included the first switch pipe being connect with high-voltage side and connect with low voltage side second opens Guan Guan, and the first switch pipe and the second switch pipe connect respectively with the low voltage side of multi-level-cell described in upper level It connects；The first switch pipe and second switch pipe of first order multi-level-cell low electricity with the fixed voltage DC Module respectively Press side connection；The high-voltage output terminal UH and low-voltage output end UL is gradually increased or reduced with differentiating voltage E, and the moment protects Hold the voltage difference for the voltage Ud that size is fixed voltage DC Module, wherein Ud>E, E=5V.
- 2. more level driver circuit for piezoelectric ceramics according to claim 1, which is characterized in that Ud=2E.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908904.9A CN105429506B (en) | 2015-12-10 | 2015-12-10 | More level driver circuit for piezoelectric ceramics and its drive control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908904.9A CN105429506B (en) | 2015-12-10 | 2015-12-10 | More level driver circuit for piezoelectric ceramics and its drive control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105429506A CN105429506A (en) | 2016-03-23 |
| CN105429506B true CN105429506B (en) | 2018-06-15 |
Family
ID=55507490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510908904.9A Active CN105429506B (en) | 2015-12-10 | 2015-12-10 | More level driver circuit for piezoelectric ceramics and its drive control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105429506B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113012B (en) * | 2019-05-05 | 2022-02-01 | 武汉大学 | Circuit topology and method for improving efficiency of linear power amplifier |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042633A (en) * | 1988-11-10 | 1990-05-30 | 清华大学 | Digital/analogue converter of current model |
| CN2579081Y (en) * | 2002-11-08 | 2003-10-08 | 中国科学院武汉岩土力学研究所 | Low non-linear charge amplifier |
| US7079066B1 (en) * | 2005-07-06 | 2006-07-18 | Faraday Technology Corp. | D/A converter |
| CN101373937A (en) * | 2008-10-08 | 2009-02-25 | 南京航空航天大学 | Ultrasound motor drive controller based on embedded system level chip |
| CN101795136A (en) * | 2010-02-05 | 2010-08-04 | 电子科技大学 | Digital-to-analog conversion circuit |
| CN104601040A (en) * | 2014-12-26 | 2015-05-06 | 北京理工大学 | Switch linear mixed type piezoelectric ceramic drive circuit |
| CN204652315U (en) * | 2015-06-11 | 2015-09-16 | 苏州索拉科技有限公司 | A kind of high-power amplifier drive circuit |
-
2015
- 2015-12-10 CN CN201510908904.9A patent/CN105429506B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042633A (en) * | 1988-11-10 | 1990-05-30 | 清华大学 | Digital/analogue converter of current model |
| CN2579081Y (en) * | 2002-11-08 | 2003-10-08 | 中国科学院武汉岩土力学研究所 | Low non-linear charge amplifier |
| US7079066B1 (en) * | 2005-07-06 | 2006-07-18 | Faraday Technology Corp. | D/A converter |
| CN101373937A (en) * | 2008-10-08 | 2009-02-25 | 南京航空航天大学 | Ultrasound motor drive controller based on embedded system level chip |
| CN101795136A (en) * | 2010-02-05 | 2010-08-04 | 电子科技大学 | Digital-to-analog conversion circuit |
| CN104601040A (en) * | 2014-12-26 | 2015-05-06 | 北京理工大学 | Switch linear mixed type piezoelectric ceramic drive circuit |
| CN204652315U (en) * | 2015-06-11 | 2015-09-16 | 苏州索拉科技有限公司 | A kind of high-power amplifier drive circuit |
Non-Patent Citations (1)
| Title |
|---|
| New concept of a hybrid amplifier for driving piezoelectric actuators;Christoph Stiebel;《Proceeding of the 1st International Federation of Automatic Control. Mechatronic System》;20001231;第379-381页，图1-5 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105429506A (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102611413B (en) | Insulated gate bipolar translator (IGBT) series connection type high-voltage pulse generator | |
| CN102075149B (en) | Power envelope tracing power supply of multi-phase interleaving radio-frequency power amplifier | |
| CN101483345B (en) | Control method for photovoltaic grid connection inverter with wide input range | |
| CN101521491A (en) | Radio-frequency power regulation method and radio-frequency power amplifier | |
| CN106533173B (en) | High-gain DC/DC converter with adjustable input phase number | |
| CN106169868A (en) | The DC converter topology of wide input and feed-forward type Average Current Control method thereof | |
| CN105743329A (en) | IGBT shunt-wound dynamic current-sharing circuit and control method | |
| CN101373965B (en) | Switching circuit for power supply switch | |
| CN104601040A (en) | Switch linear mixed type piezoelectric ceramic drive circuit | |
| CN106981987A (en) | A kind of DC booster converter and system based on switching capacity inductance | |
| CN105429506B (en) | More level driver circuit for piezoelectric ceramics and its drive control method | |
| CN108988646B (en) | DAB (digital audio broadcasting) optimization control method with voltage transmission ratio larger than 1 under zero-voltage switch | |
| CN105429476B (en) | A kind of linear compound piezoelectric ceramic driving power supply of more level switches | |
| CN101397674B (en) | Intelligent full-bridge soft-switching potentiostat | |
| CN102983776B (en) | Ultrasonic motor dual pulse-width modulation (PWM) power drive topological structure | |
| CN103401468A (en) | Plasma arc starting circuit | |
| CN201178380Y (en) | Three-transistor step-up/step-down circuit with wide voltage inputting range for interconnected electricity power | |
| CN207368879U (en) | A kind of quasi- boost switching DC/DC converters of the high-gain of low voltage stress | |
| CN102802324A (en) | Double-loop driving system | |
| CN104953869A (en) | Nonlinear negative feedback LED (light emitting diode) switch voltage stabilizing power supply based on phase-sensitive wave detection circuit | |
| CN101777846A (en) | System and method for controlling switch power supply | |
| CN112421959A (en) | Direct-current transformer topology and control method thereof | |
| CN207399158U (en) | A kind of highpowerpulse current source circuit | |
| CN114397935B (en) | High-voltage high-precision large-current piezoelectric ceramic constant-current driving circuit | |
| CN201994864U (en) | Power supply voltage stabilizing circuit for CW traveling-wave tube slow wave line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |