CN101964497B - PZT drive circuit for tunable laser - Google Patents
PZT drive circuit for tunable laser Download PDFInfo
- Publication number
- CN101964497B CN101964497B CN2009100900108A CN200910090010A CN101964497B CN 101964497 B CN101964497 B CN 101964497B CN 2009100900108 A CN2009100900108 A CN 2009100900108A CN 200910090010 A CN200910090010 A CN 200910090010A CN 101964497 B CN101964497 B CN 101964497B
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- output
- audio frequency
- transformer group
- 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
- Amplifiers (AREA)
Abstract
The invention discloses a PZT drive circuit for a tunable laser. The PZT drive circuit comprises a sine wave generating circuit, a voltage control circuit and a booster circuit, wherein the signal output end of the sine wave generating circuit is connected with the input end of the voltage control circuit; the output end of the voltage control circuit is connected to the input end of the booster circuit; and the booster circuit boosts voltage.
Description
Technical field
The present invention relates to a kind of piezoelectric ceramic (PZT) drive circuit, be specifically related to a kind of PZT drive circuit that is used for tunable laser.
Background technology
Realize tunable laser, one of mode is for to be placed on fiber laser on the PZT, and the distance that the deformation through PZT changes grating is to reach sharp the tunable of optical maser wavelength of penetrating.Need add different frequency and different voltages with different to PZT like this; To reach the different modulation amplitude of laser; Characteristic according to the PZT of domestic manufacturer; Reach the modulation amplitude of 1pm, need to give PZT plus signal peak-to-peak value to surpass the voltage of 100V in the actual measurement, all signal generation apparatus can't satisfy this demand.
The device of the existing PZT of can be used as drive signal is divided into two kinds, and a kind of is frequency adjustable, but the output waveform peak-to-peak value is lower, generally can only reach about 30V, for example GWinstek SFG2104 type signal generator; The high pressure that a kind of peak can reach kilovolt is called high frequency inverter, but this in the majority with civil power 50Hz frequency.
According to above-mentioned requirements, this of development kind of PZT drive circuit purpose is to solve:
Output frequency can be at 1KHz to adjustable continuously between the 25KHz, and peak can reach the sinusoidal signal of 140V.
Summary of the invention
The objective of the invention is to, a kind of PZT drive circuit that is used for tunable laser is provided, to adjustable continuously between the 25KHz, peak can reach the sinusoidal signal of 140V to its output frequency at 1KHz.
Technical problem of the present invention solves through following technical scheme:
The present invention provides a kind of PZT drive circuit that is used for tunable laser, comprises sine wave generating circuit, voltage-regulating circuit and booster circuit, wherein:
The signal output part of sine wave generating circuit is connected with the input of voltage-regulating circuit;
The output of voltage-regulating circuit is connected with the input of booster circuit, and this booster circuit is realized the rising of voltage.
Wherein said voltage-regulating circuit is an operational amplifier.
Wherein this booster circuit is an audio frequency transformer.
Wherein said booster circuit comprises: two transformer group; Each transformer group is to be formed by connecting three audio frequency transformers; The turn ratio of each audio frequency transformer is 1: 1, a push-pull output circuit, and this push-pull output circuit is between two transformer group; In order to increase output current, strengthen the carrying load ability of back level.
The core material of wherein said each audio frequency transformer is a permalloy, and connected mode is the former limit parallel connection of three audio frequency transformers, and the breadths series connection is 1: 3 an audio frequency transformation to realize turn ratio.
The invention has the advantages that:
Remedied the defective that existing signal generator can't reach high pressure, it is high to have proposed a kind of output peak, and frequency arrives the continuously adjustable PZT drive circuit of 25KHz at 1KHz.
Description of drawings
For further specifying concrete technology contents of the present invention, below in conjunction with embodiment and accompanying drawing specifies as after, wherein:
Fig. 1 is the theory diagram of the specific embodiment of the invention;
Fig. 2 is the circuit theory diagrams of the specific embodiment of the invention one;
Fig. 3 is the circuit theory diagrams of the specific embodiment of the invention two.
Embodiment
See also Fig. 1-Fig. 3, a kind of PZT drive circuit that is used for tunable laser of the present invention comprises sine wave generating circuit 1, voltage-regulating circuit 2 and booster circuit 3, wherein:
The sine wave signal output of sine wave generating circuit 1 is connected with the normal phase input end of voltage-regulating circuit 2, and wherein said sine wave generating circuit 1 major part is a HF signal generator spare, can produce the waveform of frequency adjustable; Wherein said voltage-regulating circuit 2 is an operational amplifier, can realize that the ratio of signal is amplified, and the signal that offset of sinusoidal wave generation circuit 1 produces carries out the adjustment of amplitude;
The output of voltage-regulating circuit 2 is connected with the input of booster circuit 3; The output termination load P ZT of booster circuit 3; The transformer group of being made up of audio frequency transformer of this booster circuit selecting for use realizes the rising of voltage, and wherein said booster circuit 3 comprises: two transformer group, each transformer group are to be formed by connecting three audio frequency transformers; The turn ratio of each audio frequency transformer is 1: 1; A push-pull output circuit 31, this push-pull output circuit 31 are used for the carrying load ability of intensifier circuit between two transformer group.The former limit of one of them transformer group is as the input of this part, and breadths connects the input of push-pull output circuit 31, is used for realizing raising the first time of voltage; The signal amplification circuit that push-pull output circuit 31 is made up of the transistor of two identical opposed polarities of parameter is in order to improve the load capacity of circuit; The former limit of another transformer group of output termination of push-pull output circuit 31, the breadths of this transformer group realize that as the load of output termination the secondary of voltage raises, and reach required high pressure.The core material of each audio frequency transformer in the wherein said transformer group is a permalloy, and connected mode is the former limit parallel connection of three audio frequency transformers, and the breadths series connection is 1: 3 an audio frequency transformation to realize turn ratio.
Embodiment one
PZT drive circuit shown in accompanying drawing 2 produces the high pressure sine wave signal, is used to drive PZT deformation takes place, and is added in the grating that PZT goes up laser and changes thereby make, and reaches tunable to optical maser wavelength.Circuit of the present invention comprises sine wave generating circuit 1, voltage-regulating circuit 2 and booster circuit 3.
Fig. 2 chips U1 is HF signal generator spare ICL8038, and the operational amplifier model is NE5532, and T1, T2 are 1: 3 audio frequency transformer for series connection back turn ratio; Material is a permalloy, and transistor Q1, Q2 are that D1, D2 are common diode to pipe; Resistance R A2, RB2, R1 are the adjustable potential meter, resistance R A1, RB1, R2, and R3, R4, R5, R6 are the resistance of common encapsulation; R7, R8, R9 are power resistor, and C is a capacity cell.
By resistance R A1, RB1, potentiometer RA2, RB2 connect between peripheral pin of integrated chip U1 and the positive supply VCC+12, and capacitor C connects chip U1 and negative supply VCC-12.RA1 and RA2 form resistance R A jointly, and RB1 and RB2 form RB jointly.The frequency of output waveform is by formula:
Operational amplifier U2 need select to export the NE5532 of signal bandwidth at 10MHz, and its normal phase input end links to each other with the output of U1 in the sine wave generating circuit 1 through resistance R 3; Inverting input simultaneously, is connected to positive feedback potentiometer R1 by R2 ground connection between output and the inverting input, can draw input with output relation to be:
Through regulating the R1 size, change the size of feedback quantity, promptly change the size of multiplication factor, thereby change the operational amplifier amplitude of output voltage.
Audio frequency transformer T1, T2, the selection work frequency arrives 30KHz at 1KHz, and what adopt in the present embodiment is permalloy time magnetic material; 1: 3 turn ratio realization employing turn ratio is the mode that the secondary of 1: 1 audio frequency transformer is connected.Reason is that institute's bringing onto load PZT capacitive is bigger, and carrying load ability poor after 6 grades of series connection adopts the scheme of boosting for twice, the middle driving force that adopts the push-pull circuit of pipe being made up of transistor Q1, Q2 to strengthen the output of first order transformer.
The output of voltage-regulating circuit 2 links to each other with the former limit of transformer group T1; As the input of booster circuit, after process transformer group T1 once boosted, the input of push-pull output circuit 31 was received in the breadths output of transformer group T1; Diminish the problem that driving force descends with the solution after-current that boosts.Another transformer group T2 is received in the output of push-pull output circuit 31 again, carries out secondary booster, to reach needed high pressure.Wherein, push-pull output circuit 31 is common two pnp and npn transistor pipe Q1, Q2 to be made up of, but the driving force of intensifier circuit.
Embodiment two
PZT drive circuit execution mode shown in accompanying drawing 3 is following:
Fig. 3 chips is a HF signal generator spare, and the operational amplifier model is OPA2227, and transistor T 1, T2 are 1: 3 audio frequency transformer for series connection back turn ratio; Material is a permalloy, and transistor Q1, Q2 are that D1, D2 are common diode to pipe; Resistance R in2 is the adjustable potential meter; Resistance R in1, R0, R2, R3, R4, R5, R6 are the resistance of common encapsulation, and resistance R 7, R8, R9 are power resistor, and CF is a capacity cell.
Integrated chip U1 is MAX038, and it is peripheral through resistance R in1, and potentiometer Rin2 and capacitor C F connect, and Rin1 and Rin2 form resistance R in jointly.The frequency of output waveform is by formula:
The potentiometric size of Rin2 is regulated in decision, can change the frequency of sine wave output.
Operational amplifier U2 need select to export the OPA2227 of signal bandwidth at 8MHz, and its normal phase input end is connected with the sinusoidal wave output that part 1 takes place; Output is through R2 ground connection, and and inverting input between be provided with positive feedback potentiometer R1, can draw input and be with output relation:
Through regulating the R1 size, change the size of feedback quantity, promptly change the size of multiplication factor, thereby change the operational amplifier amplitude of output voltage.
The device of back level repeats no more with to connect method identical with embodiment two.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deductions or replacement, all should be regarded as belonging to the definite scope of patent protection of claims that the present invention submits to.
Claims (1)
1. a PZT drive circuit that is used for tunable laser comprises sine wave generating circuit, voltage-regulating circuit and booster circuit, and the signal output part of sine wave generating circuit is connected with the input of voltage-regulating circuit; Wherein said voltage-regulating circuit is an operational amplifier; Can realize the ratio amplification of signal; The signal that the offset of sinusoidal wave generation circuit produces carries out the adjustment of amplitude, and the output of voltage-regulating circuit is connected with the input of booster circuit, the output termination load P ZT of booster circuit; This booster circuit selects for use the transformer group of being made up of audio frequency transformer to realize the rising of voltage; Wherein said booster circuit comprises: two transformer group; Each transformer group is to be formed by connecting three audio frequency transformers, and the turn ratio of each audio frequency transformer is 1: 1, a push-pull output circuit; This push-pull output circuit is used for the carrying load ability of intensifier circuit between two transformer group; The former limit of one of them transformer group is as the input of this booster circuit, and breadths connects the input of push-pull output circuit, is used for realizing raising the first time of voltage; The signal amplification circuit that push-pull output circuit is made up of the transistor of two identical opposed polarities of parameter is in order to improve the load capacity of circuit; The former limit of another transformer group of output termination of push-pull output circuit, the breadths of this transformer group realize that as the load of output termination the secondary of voltage raises, and reach required high pressure; The core material of each audio frequency transformer in the wherein said transformer group is a permalloy, and connected mode is the former limit parallel connection of three audio frequency transformers, and the breadths series connection is 1: 3 an audio frequency transformation to realize turn ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100900108A CN101964497B (en) | 2009-07-24 | 2009-07-24 | PZT drive circuit for tunable laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100900108A CN101964497B (en) | 2009-07-24 | 2009-07-24 | PZT drive circuit for tunable laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101964497A CN101964497A (en) | 2011-02-02 |
| CN101964497B true CN101964497B (en) | 2012-03-07 |
Family
ID=43517288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100900108A Expired - Fee Related CN101964497B (en) | 2009-07-24 | 2009-07-24 | PZT drive circuit for tunable laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101964497B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8654805B2 (en) * | 2011-08-23 | 2014-02-18 | Coherent, Inc. | Apparatus and method for balancing combined RF power-supplies for driving a CO2 gas-discharge laser |
| CN110600992B (en) * | 2019-09-12 | 2022-01-11 | 武汉光迅科技股份有限公司 | Piezoelectric ceramic shearing sheet driving circuit and laser system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524327A (en) * | 2001-07-06 | 2004-08-25 | 英特尔公司 | Tunable laser control system |
| CN1647289A (en) * | 2002-04-15 | 2005-07-27 | Pbt(Ip)有限公司 | Drive circuit for piezo ceramic device |
| JP2006129673A (en) * | 2004-11-01 | 2006-05-18 | Canon Inc | High voltage power supply device and method of controlling high voltage power supply device |
| CN101400011A (en) * | 2007-09-29 | 2009-04-01 | 北京开摩微电技术中心 | Skull conducting apparatus |
-
2009
- 2009-07-24 CN CN2009100900108A patent/CN101964497B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524327A (en) * | 2001-07-06 | 2004-08-25 | 英特尔公司 | Tunable laser control system |
| CN1647289A (en) * | 2002-04-15 | 2005-07-27 | Pbt(Ip)有限公司 | Drive circuit for piezo ceramic device |
| JP2006129673A (en) * | 2004-11-01 | 2006-05-18 | Canon Inc | High voltage power supply device and method of controlling high voltage power supply device |
| CN101400011A (en) * | 2007-09-29 | 2009-04-01 | 北京开摩微电技术中心 | Skull conducting apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 刘放，张士邈，陈明.压电陶瓷驱动电源及其在激光陀螺扫模中的应用.《理论与实践》.2001,第21卷(第2期),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101964497A (en) | 2011-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102055328A (en) | Multi-stage power supply | |
| CN101599715A (en) | Dynamic bipolar drive power supply for piezoelectric ceramics and implementation method | |
| CN101964497B (en) | PZT drive circuit for tunable laser | |
| CN101848582A (en) | Controller for led driver and led driver | |
| CN102594193A (en) | Self-excitation push-pull converter | |
| CN101701939B (en) | Broad-frequency high-power electromagnetic exciting device | |
| CN102541139A (en) | System and method for outputting of analog quantity current | |
| CN101559844B (en) | Temperature control device of rapid-heating iron | |
| CN100502232C (en) | A DC level switching circuit | |
| CN204142782U (en) | The high precision numerical control power supply that a kind of output waveform is controlled | |
| CN207179901U (en) | A kind of conditioning drive device certainly suitable for ultrasonic atomization piece | |
| CN101499779B (en) | Piezoelectric minimized wide-band power amplifier | |
| CN101714821B (en) | Excitation power circuit of rotary transformer | |
| CN210348253U (en) | High-precision low-voltage alternating-current signal source | |
| CN104410374A (en) | Precise alternating voltage amplifier | |
| CN204316342U (en) | A kind of Improvement type transducer driving circuit | |
| CN209060388U (en) | Ultrasonic therapy device | |
| CN102611314A (en) | Voltage feedback isolation circuit | |
| CN106169886A (en) | Two grades of booster circuits of high step-up ratio | |
| CN206962712U (en) | A kind of adjustable DC high voltage power supply | |
| CN205081688U (en) | Galvanic voltage transformation circuit | |
| CN106357129B (en) | The controllable giant magnetostrictive transducer driving power of signal source | |
| CN205622540U (en) | Modular abrupt wave generator | |
| CN204600764U (en) | A kind of power conditioning circuitry and apply the ultrasonic cavitron of this circuit | |
| CN101552594B (en) | High-fidelity power amplifying circuit in power supply regenerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20120724 |