CN1050244C - Dring power source for activating piezoelectric device - Google Patents
Dring power source for activating piezoelectric device Download PDFInfo
- Publication number
- CN1050244C CN1050244C CN98102187A CN98102187A CN1050244C CN 1050244 C CN1050244 C CN 1050244C CN 98102187 A CN98102187 A CN 98102187A CN 98102187 A CN98102187 A CN 98102187A CN 1050244 C CN1050244 C CN 1050244C
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- pulse
- power supply
- transistor
- 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
Images
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The present invention relates to a novel driving power supply for activating piezoelectric apparatuses. The present invention comprises a high-voltage fast switching circuit and a direct-current stabilized voltage power supply circuit, wherein the high-voltage fast switching circuit is composed of an optical coupling isolating circuit, a voltage comparing circuit, an integrator, an amplifier and a switch transistor circuit. The direct-current stabilized voltage power supply circuit is fabricated by pulse width modulation principles. The present invention has the conspicuous advantages that the output of the present invention can rapidly follow the variation of control signals, achieves fast response, can output 300 V pulse voltage, can adjust the front edge and the back edge of square wave pulse, has 8 mA load current, and can be widely used for all application areas of piezoelectric materials and other technical fields of switching pulse control and high voltage requirements for power supply.
Description
The present invention relates to a kind of novel driving power that is used for the piezoelectric device exciting, belong to electronic instrument technology field.Be particularly related to the design of the novel practical circuit of the piezoelectric driving power that is used for the piezoelectric application technology.
Piezo technology is an emerging technology, and it mainly studies piezoelectric effect, and promptly piezoelectric the mechanism of dilatation takes place and in application in engineering under electric field action.
The applying piezoelectric effect is utilized bionic " wriggling " step-by-step system, can constitute a kind of stepper motor that is used for the precise jiggle location and drives.The driving power of piezoelectricity stepper motor needs a kind of direct-current switch power supply of hundreds of volts.The flex effect that utilizes piezoelectric in other form carries out in the device of work, also all needs a kind of like this direct-current switch power supply.At present, though domestic also have such piezoelectric driving power, cost is higher, and one the tunnel will be more than 5,000 yuan, and frequency response is lower, can only arrive about 100Hz.
The objective of the invention is to design a kind of novel driving power that is used for the piezoelectric device exciting, provide that a kind of cost is lower, frequency response range is wide, safe, reliable, the simple power supply of circuit for the driving of piezoelectric.The front and back of the high-voltage pulse of power supply output are adjustable along gradient.
The novel driving power that is used for the piezoelectric device exciting of the present invention's design partly is made up of D.C. regulated power supply part and control circuit,
Described D.C. regulated power supply partly comprises:
(1) transformer that alternating current is boosted;
(2) rectification of forming by rectifier diode and electrochemical capacitor, filter circuit, alternating current carried out filter rectification after, the input switch transistor;
(3) pulse frequency and the pulse-width modulation circuit of being made up of two monostable flipflops is in order to the transistorized break-make of control switch;
(4), provide the driving power of subsequent conditioning circuit by a triode and the amplifying circuit that diode is formed;
(5) clamp circuit that is composed in series by three diodes is to accelerate switching speed;
Described control circuit partly comprises:
(6) optical coupling isolation circuit of being made up of opto-coupler chip is realized the isolation between this power supply and control signal source;
(7) comparison circuit of being made up of comparator and outer meeting resistance carries out shaping to input signal;
(8) integrating circuit of being made up of comparator and resistance capacitance is used for adjusting rising edge and the trailing edge of exporting pulse;
(9) amplifying circuit of being made up of comparator and resistance is in order to provide subsequent conditioning circuit required electric current;
(10) switching circuit of being made up of transistor and divider resistance is used to export direct impulse voltage;
(11) rev switch circuitry of being made up of transistor and divider resistance is used for the output by forward voltage, and extracts the electric charge of load;
(12) both positive and negative polarity of the output voltage in the D.C. regulated power supply is received respectively on the input voltage both positive and negative polarity of control circuit.
Operation principle of the present invention is described below in conjunction with Fig. 1: direct current regulation circuit provides 300 volts of direct voltages by pulsewidth and warbled mode to control circuit, control circuit is controlled the break-make of DC power supply under the control of input control signal, when input control signal is high level, the switching transistor conducting, the high direct voltage of input is exported to output, and when control signal was low level, transistor ended, the high direct voltage of input is not to output output, and the high-voltage pulse output end voltage is zero.Like this, when DC high-voltage power supply is connected on the input of switching transistor, pulse signal of control impuls input input, the high-voltage pulse output will be exported a high-voltage pulse, the frequency of high-voltage pulse is consistent with the frequency of control signal, and pulsewidth is consistent with the pulsewidth of control signal.
Outstanding advantage of the present invention is that enough simple pulsewidths of energy and frequency modulation(FM) mode obtain 300 volts of D.C. regulated power supplies, D.C. regulated power supply to 300 volts under the control of Transistor-Transistor Logic level control wave carries out copped wave, and but the high-voltage pulse waveform output that acquisition meets the demands is regulated in the front and back of the waveform of paired pulses output along gradient.Compare with existing Piezoelectric Driving power circuit, it is low that the present invention has a cost, frequency response range wide (frequency range 0～200Hz), element is easily selected, debugging is convenient, reliability height, advantage of wide range of application.The present invention not only provides safety, reliable, simple, the lower-cost driving power of circuit for the application of piezoelectric in stepper motor, and can be widely used in the other technologies field that has similar voltage and impulse waveform to require to power supply.
Brief Description Of Drawings:
Fig. 1 totally constitutes block diagram for the present invention.
Fig. 2 is DC-stabilized circuit figure in the embodiments of the invention.
Fig. 3 is an output control circuit schematic diagram in the embodiments of the invention.
The both positive and negative polarity of the output voltage among Fig. 2 in the D.C. regulated power supply is received respectively on the input voltage both positive and negative polarity of control circuit among Fig. 3.
Introduce one embodiment of the present of invention in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3.
Fig. 1 is an overall formation block diagram of the present invention.This system is made up of D.C. regulated power supply and two parts of output control circuit.
1, D.C. regulated power supply part
Form by transformer T2, rectification (B1), filtering (E1), pulse frequency and pulse-width modulation circuit (two monostable flipflop 74LS123 of A, B), amplifying circuit (M1/9013 and D1), clamp circuit (D2, D3, D4).Alternating current (220V) input transformer T2 carries out transformation, through current rectifying and wave filtering circuit input switch transistor, by the transistorized break-make of clock control switch of turnable pulse width and frequency, export high-voltage dc voltage through filter circuit again by the voltage of switching transistor output.Transformation is finished by a step-up transformer T2, current rectifying and wave filtering circuit is made up of a rectifier bridge B1 and big capacitor C 1, pulse frequency and pulse-width modulation circuit add that by two chip 74LS123 external resistance capacitance has constituted the pulse generating circuit of adjustable pulse frequency and pulsewidth, amplifying circuit is made up of a triode M1/9013 and diode D1, clamp circuit by three diodes connect (D2, D3, D4) add that resistance capacitance forms.
2, control circuit part
Constitute by light-coupled isolation, comparison circuit, integrating circuit, amplifying circuit, forward switching circuit, back discharge circuit.This circuit receives the road pulse control signal that is sent by computer or other control circuits, this pulse control signal one tunnel is through light-coupled isolation, carry out waveform shaping through comparator, and then the transistorized forward conduction of signal controlling charge switch after integrator integration and amplifier amplification, the forward conduction of switching transistor forward conduction control DC high-voltage power supply.Another road control signal after integrator integration and amplifier amplification, is controlled the transistorized conducting of discharge switch after light-coupled isolation and reverse shaping.During the discharge transistor conducting, extract the store charge of piezoelectric, back discharge quickens the shutoff of high-voltage pulse.Light-coupled isolation is finished by opto-coupler chip 4N25, comparison circuit is made up of comparator LM741 and outer meeting resistance, integrating circuit is made of comparator chip LM741 and resistance capacitance, amplifying circuit is made of comparator LM741 and resistance, the forward switching circuit is made of transistor D1575 and divider resistance, and rev switch circuitry is made of transistor D1575 and divider resistance.
Fig. 2 is the DC-stabilized circuit figure of present embodiment.D.C. regulated power supply part, present embodiment comprise transformation, rectifying and wave-filtering, pulse frequency and pulse-width modulation circuit, amplifying circuit, clamp circuit.220 volts of alternating currents insert transformer T2, insert the collector electrode of triode after rectifier bridge B1 rectification and electrochemical capacitor E1 filtering through the alternating current behind the transformer.The pulse generating circuit of adjustable frequency pulsewidth adds external circuits by two monostable flipflop 74LS123 (A and B) and constitutes, and one (A) is used to control pulsewidth, and another (B) is used for control frequency.When circuit start, always there is interference signal to scurry into circuit, the output rising edge of A triggers B, does not stop repeatedly, so form consecutive pulses.The present invention has adopted LS123 can trigger one-shot multivibrator again.When C＞1000pF, the monostable output pulse width of 74LS123 is T, is determined by formula T=0.45RC.The output of pulse generator is isolated with pulse transformer after amplifying through triode, drives two switching transistors simultaneously.Can guarantee the voltage signal symmetry exported like this, and it is also very convenient to adjust magnitude of voltage.In order to accelerate switching speed, adopted simple base drive circuit.Its operation principle is: if positive pulse V
P1When being added to former limit winding, the pulse V of secondary winding induction
C1Make T
R1Conducting.V
G1Make T
R1Conducting.V
G1Make capacitor C that as shown in the figure voltage direction is arranged simultaneously, the circuit of C is by D2, D3, D4 forward voltage drop (within 3 volts) institute clamp (also available voltage-stabiliser tube Z1 replaces).As original edge voltage V
P1During to zero volt, secondary also is zero, and the stored charge of C produces and turn-offs T
R1Negative base current, so just reduced transistorized memory time.Simple isolating transformer produces the conducting pulse, with the negative pulse of C discharge generation shutoff.
Fig. 3 is the output control circuit schematic diagram of the embodiment of the invention.The control circuit part is made of light-coupled isolation, comparison circuit, integrating circuit, amplifying circuit, forward switching circuit, back discharge circuit.After control signal (Transistor-Transistor Logic level pulse signal) input, the one tunnel is connected on 1 and 2 pins of U7 RN25, and 1 just connects, 2 connect negatively, and-12 volts of voltages are connected on its 4 pins, pulse of 1 and 2 inputs, will export a pulse at its 5 pins, realize the isolation of input control circuit and this circuit.(LM741 is a voltage comparator through current limliting divider resistance R17 input comparator U5:LM741 in the pulse of 5 pins output, during work+12 voltages connect its 8 pins,-12 volts of voltages connect its 4 pins, in this circuit with the input of two comparators ground connection all) 2 pins, resistance R 19 plays the dividing potential drop effect, 6 pins are with regard to output waveform pulse preferably, insert integrator (by comparator U3:LM741 and resistance R 15, R13 capacitor C 1 is formed, the gradient of the rising and falling edges of the resistance value of R15 and capacitor C 1 decision pulse signal, regulate the gradient of the waveform that R15 then can the regulating impulse signal), integrator can be regulated the width of the direct impulse of output high-voltage pulse within the specific limits, the signal that comes out through integrator inserts amplifier, and (amplifier is by a slice U1:CA314 amplifier and resistance R 5, R6, R9 constitutes feedback amplifier, the resistance of three resistance has determined the multiplication factor of amplifier), act between the base stage of transistor T1 D1575 and the emitter through the dividing potential drop of potentiometer R1 and fixed resistance R4 through signal that amplifier comes out and to add a voltage, the conducting of control transistor, speed when regulator potentiometer can be added in magnitude of voltage on transistor T 1 base stage and reaches the transistor turns required voltage by adjusting is regulated the speed of transistor T1 conducting, thereby can regulate the gradient of rising edge of the high-voltage pulse of output.Another road of control signal (Transistor-Transistor Logic level pulse signal) is connected on 1 and 2 pins of U8 4N25, and 1 just connects, 2 connect negative,-12 volts of voltages are connected on its 4 pins, pulse of 1 and 2 inputs will be exported a pulse at its 5 pins, has realized the isolation of input control circuit and this circuit.The pulse of 5 pins output is through 3 pins of current limliting divider resistance R18 input comparator U6:LM741, with respect to the input of U5 anti-a second phase, resistance R 20 plays the dividing potential drop effect, pulse behind the 6 pin output Shapings of U6, inserting integrator (is made up of comparator U4:LM741 and resistance R 14, R16, capacitor C 2, the rising edge of the resistance value of R16 and capacitor C 2 decision pulse signals and the gradient of trailing edge, regulate the gradient of the waveform that R16 then can the regulating impulse signal), integrator can be regulated the width of the direct impulse of output high-voltage pulse within the specific limits.(amplifier constitutes feedback amplifier by a slice CA3140 amplifier and resistance R 7, R8, R10 to the signal access amplifier that comes out through integrator, the resistance of three resistance has determined the multiplication factor of amplifier), the signal that is come out by amplifier is through the dividing potential drop effect of potentiometer R2 and fixed resistance R3, between the base stage of transistor T2 D1575 and emitter, add a voltage, the conducting of control transistor.Speed when regulator potentiometer can be added in magnitude of voltage on transistor T 2 base stages and reaches the transistor turns required voltage by adjusting is regulated the speed of transistor T2 conducting and the size of discharging current, thereby can regulate the gradient of trailing edge of the high-voltage pulse of output, i.e. the discharge speed of piezoelectric.Among Fig. 2+among 300V place and Fig. 3+300V is connected, and the ground wire corresponding with two+300V done corresponding connection.The Piezoelectric Driving power supply that two parts circuit is produced after connecting is used achieving success in piezoelectricity-electrorheological motor system.
Claims (1)
1, a kind of novel driving power that is used for the piezoelectric device exciting is characterized in that this driving power partly is made up of D.C. regulated power supply part and control circuit,
Described D.C. regulated power supply partly comprises:
(1) transformer that alternating current is boosted;
(2) rectification of forming by rectifier diode and electrochemical capacitor, filter circuit, alternating current carried out filter rectification after, the input switch transistor;
(3) pulse frequency and the pulse-width modulation circuit of being made up of two monostable flipflops is in order to the transistorized break-make of control switch;
(4), provide the driving power of subsequent conditioning circuit by a triode and the amplifying circuit that diode is formed;
(5) clamp circuit that is composed in series by three diodes is to accelerate switching speed;
Described control circuit partly comprises:
(6) optical coupling isolation circuit of being made up of opto-coupler chip is realized the isolation between this power supply and control signal source;
(7) comparison circuit of being made up of comparator and outer meeting resistance carries out shaping to input signal;
(8) integrating circuit of being made up of comparator and resistance capacitance is used for adjusting rising edge and the trailing edge of exporting pulse;
(9) amplifying circuit of being made up of comparator and resistance is in order to provide subsequent conditioning circuit required electric current;
(10) switching circuit of being made up of transistor and divider resistance is used to export direct impulse voltage;
(11) rev switch circuitry of being made up of transistor and divider resistance is used for the output by forward voltage, and extracts the electric charge of load.
(12) both positive and negative polarity of the output voltage in the D.C. regulated power supply is received respectively on the input voltage both positive and negative polarity of control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98102187A CN1050244C (en) | 1998-05-29 | 1998-05-29 | Dring power source for activating piezoelectric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98102187A CN1050244C (en) | 1998-05-29 | 1998-05-29 | Dring power source for activating piezoelectric device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1206950A CN1206950A (en) | 1999-02-03 |
| CN1050244C true CN1050244C (en) | 2000-03-08 |
Family
ID=5217186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98102187A Expired - Fee Related CN1050244C (en) | 1998-05-29 | 1998-05-29 | Dring power source for activating piezoelectric device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1050244C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468943C (en) * | 2004-03-31 | 2009-03-11 | 中国科学院电子学研究所 | Piezoelectric executor driving power supply |
| CN1564450B (en) * | 2004-04-20 | 2010-05-26 | 哈尔滨工业大学 | Double-polar piezoelectric ceramic drive power supply having waveform generation function |
| CN100448145C (en) * | 2005-07-27 | 2008-12-31 | 南京航空航天大学 | Control and driving apparatus of voltage and or piezoelectric composite material |
| US8704581B2 (en) * | 2007-04-23 | 2014-04-22 | Qualcomm Incorporated | Switched capacitor integration and summing circuits |
| CN101895219B (en) * | 2010-07-22 | 2012-08-08 | 鞍山起重控制设备有限公司 | Pulse trigger type master control signal level converter and application method thereof |
| CN102545846B (en) | 2011-12-31 | 2015-11-25 | 同方威视技术股份有限公司 | The equipment exported for control impuls and method |
| CN104639095B (en) * | 2015-03-19 | 2017-10-24 | 山东大学 | A kind of variable element Non-drift active low-pass filter circuit |
| CN106549600A (en) * | 2016-10-27 | 2017-03-29 | 深圳市汉拓数码有限公司 | Drive circuit |
| CN110233577B (en) * | 2019-07-02 | 2024-04-09 | 中国电子科技集团公司第四十三研究所 | Controllable high-voltage power pulse generation circuit and control method |
| CN112332694A (en) * | 2020-10-27 | 2021-02-05 | 西安工程大学 | Piezoelectric ceramic drive circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092345A (en) * | 1993-03-17 | 1994-09-21 | 哈尔滨工业大学 | Pulse width modulating electric spark working pulse power source |
-
1998
- 1998-05-29 CN CN98102187A patent/CN1050244C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092345A (en) * | 1993-03-17 | 1994-09-21 | 哈尔滨工业大学 | Pulse width modulating electric spark working pulse power source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1206950A (en) | 1999-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4395675A (en) | Transformerless noninverting buck boost switching regulator | |
| US6922044B2 (en) | Synchronization of multiphase synthetic ripple voltage regulator | |
| CN1050244C (en) | Dring power source for activating piezoelectric device | |
| US20030198064A1 (en) | Device and method of commutation control for an isolated boost converter | |
| CN1806380A (en) | Primary-side regulated pulse width modulation controller with improved load regulation | |
| CN101754560B (en) | Grid modulator | |
| CA1150353A (en) | Dc-to-dc converter with reduced power loss during turn off | |
| JPH0530147B2 (en) | ||
| CN111245403B (en) | Pulse high-voltage generator | |
| Saravanan et al. | Distinguished DC-DC Converter for an Electric Vehicle | |
| MX2011004632A (en) | Low voltage power supply. | |
| Chinnaiyan et al. | Design and implementation of high power DC-DC converter and speed control of DC motor using TMS320F240 DSP | |
| JP3211463B2 (en) | Switch circuit | |
| US6028760A (en) | Resonant power converter for energizing a coil | |
| JP7020737B1 (en) | Charge control device | |
| CN111555601A (en) | Soft start method of three-phase Vienna power factor correction circuit | |
| US20230032942A1 (en) | Power converter comprising series resonant converter(s) having a full-bridge series resonant topology and methods of operating same | |
| CN107947655A (en) | A kind of DC motor speed-regulating system with buffering protection function | |
| CN215894496U (en) | High-voltage narrow-pulse ultrasonic drive circuit | |
| CN110611442A (en) | PWM (pulse-width modulation) rectifying circuit for charging pile | |
| CN211577313U (en) | Submarine cable positioning power supply generating device | |
| CN211239409U (en) | Photovoltaic power generation's storage control circuit | |
| CN212305169U (en) | DC power supply for energy consumption braking | |
| CN109763902B (en) | Quick automatic control circuit for engine flameout | |
| KR102526264B1 (en) | Device for controlling single-phase transformerless virtual-ground buck-boost inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| 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: 20000308 Termination date: 20150529 |
|
| EXPY | Termination of patent right or utility model |