CN106862046A - Drive signal generation device, method and ultrasonic system - Google Patents
Drive signal generation device, method and ultrasonic system Download PDFInfo
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- CN106862046A CN106862046A CN201710113483.XA CN201710113483A CN106862046A CN 106862046 A CN106862046 A CN 106862046A CN 201710113483 A CN201710113483 A CN 201710113483A CN 106862046 A CN106862046 A CN 106862046A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes
Abstract
The present invention provides a kind of drive signal generation device, method and ultrasonic system, and the drive signal generation device includes：First waveform signal generation unit, generation one meets the first pre-conditioned triangular signal；Second waveform signal generation unit, generation one meets the second pre-conditioned comparison voltage signal；Drive signal generation unit; output end with the first waveform signal generation unit and the second waveform signal generation unit is respectively connected with; compare the size of the triangular signal and the comparison voltage signal; obtain regulation pulse signal; using the duty cycle resolution of the regulation pulse signal compensation adjustment drive pulse signal to be output, and maximum duty cycle resolution ratio and minimum duty cycle resolution ratio to the drive pulse signal to be output carries out limitation protection.The present invention can carry out accuracy compensation to drive signal, can improve the resolution ratio of the PWM duty cycle of drive signal, while also having minimum duty cycle and maximum duty cycle parameter protection function.
Description
Technical field
The invention belongs to ultrasonic technique field, it is related to a kind of ultrasonic transducer, more particularly to a kind of ultrasonic transducer
Drive signal generation device, method and ultrasonic system.
Background technology
Ultrasonic transducer is a kind of not only electric energy can be converted into acoustic energy but also acoustic energy can be converted into the device of electric energy.
Its operation principle is, according to the positive inverse piezoelectric effect of piezoelectric, to produce ultrasonic wave using inverse piezoelectric effect, i.e., in piezoelectric
The upper alternating sinusoidal signal plus certain CF, the mechanical deformation that material will change with added signal frequency, then exists
The mechanical wave of density interphase is produced in surrounding medium, if its vibration frequency is in ultrasonic range, this mechanical wave is exactly ultrasonic wave.
During reception, the acoustical signal from detection thing is become electric signal output using direct piezoelectric effect.For example, ultrasonic surgical systems are utilized
The positive inverse piezoelectric effect of ultrasonic transducer, ultrasonic test system then make use of the positive inverse piezoelectric effect of ultrasonic transducer.
Ultrasonic transducer is the critical component of generation ultrasonic vibration in ultrasonic surgical systems, is also product in ultrasonic test system
The part of ultrasound is given birth to and receives, the performance of its drive circuit has heavy to closing to whole ultrasonic surgical systems or ultrasonic test system
The effect wanted.And the drive signal of existing ultrasonic transducer is nonadjustable dutycycle, power output is caused to adjust inconvenience, it is defeated
Enter voltage request high.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of drive signal generation device and
Method, the nonadjustable problem of drive signal dutycycle for solving existing ultrasonic transducer, convenient regulation power output is reduced
Requirement to input voltage.
In order to achieve the above objects and other related objects, the present invention provides a kind of drive signal of ultrasonic transducer and produces dress
Put, the drive signal generation device includes：First waveform signal generation unit, generation one meets the first pre-conditioned triangle
Ripple signal；Second waveform signal generation unit, generation one meets the second pre-conditioned comparison voltage signal；Drive signal is produced
Unit, the output end with the first waveform signal generation unit and the second waveform signal generation unit is respectively connected with, and compares institute
The size of triangular signal and the comparison voltage signal is stated, regulation pulse signal is obtained, is mended using the regulation pulse signal
Repay the duty cycle resolution of regulation drive pulse signal to be output.
In one embodiment of the invention, the first waveform signal generation unit includes：First proportional amplifier, receives
One triangle wave source signal, and the triangle wave source signal is amplified by preset ratio, export the triangular signal for amplifying；First with
With device, the output end with first proportional amplifier is connected, and the triangular signal of the amplification is carried out to follow treatment to export
The triangular signal.
In one embodiment of the invention, the second waveform signal generation unit includes：Conditioning subelement, by a pulse
Bandwidth modulation signals are converted into the first d. c. voltage signal；Second proportional amplifier, the output end phase with the conditioning subelement
Even, first d. c. voltage signal is enlarged into the second d. c. voltage signal by preset ratio；Second follower, with described
The output end of two proportional amplifiers is connected, and second d. c. voltage signal is carried out to follow the treatment output comparison voltage to believe
Number.
In one embodiment of the invention, the drive signal generation unit includes：Maximum duty cycle protects subelement, than
The size of the triangular signal and the first predeterminated voltage signal, the first reference voltage signal of output is adjusted as the first dutycycle
Section parameter；Minimum duty cycle protects subelement, relatively the size of the triangular signal and the second predeterminated voltage signal, exports the
Two reference voltage signals are used as the second duty cycle adjustment parameter；Regulator unit, relatively more described triangular signal compares with described
The size of voltage signal, exports the duty score of drive pulse signal to be output described in the regulation pulse signal compensation adjustment
Resolution；Logic compensates subelement, and subelement, minimum duty cycle protection subelement and regulator list are protected with the maximum duty cycle
Unit is respectively connected with, and the regulation pulse signal is carried out with first reference voltage signal and the second reference voltage signal respectively
Logical operation, maximum duty cycle resolution ratio and minimum duty cycle resolution ratio to the drive pulse signal to be output are limited
System protection.
In one embodiment of the invention, the drive pulse signal of the drive signal generation device output is used to drive one
Ultrasonic transducer.
The present invention also provides a kind of driving signal generating method, and the driving signal generating method includes：Generation one meets
First pre-conditioned triangular signal；Generation one meets the second pre-conditioned comparison voltage signal；Compare the triangular wave
Signal and the size of the comparison voltage signal, obtain regulation pulse signal, are treated using the regulation pulse signal compensation adjustment
The duty cycle resolution of the drive pulse signal of output.
In one embodiment of the invention, the generation one meets a kind of realization of the first pre-conditioned triangular signal
Process includes：A triangle wave source signal is received using the first proportional amplifier, and preset ratio is pressed to the triangle wave source signal
Amplify, export the triangular signal for amplifying；The triangular signal of the amplification is carried out using the first follower follow treatment defeated
Go out the triangular signal.
In one embodiment of the invention, one kind that the generation one meets the second pre-conditioned comparison voltage signal is real
Existing process includes：One pulse width modulating signal is converted into the first d. c. voltage signal；Using the second proportional amplifier by institute
State the first d. c. voltage signal and be enlarged into the second d. c. voltage signal by preset ratio；It is straight by described second using the second follower
Stream voltage signal carries out following the treatment output comparison voltage signal.
In one embodiment of the invention, using regulation pulse signal compensation adjustment drive pulse signal to be output
A kind of implementation process of duty cycle resolution include：Compare the size of the triangular signal and the first predeterminated voltage signal,
The first reference voltage signal is exported as the first duty cycle adjustment parameter；Compare the triangular signal and the second predeterminated voltage letter
Number size, output the second reference voltage signal as the second duty cycle adjustment parameter；Compare the triangular signal with it is described
The size of comparison voltage signal, exports the duty of drive pulse signal to be output described in the regulation pulse signal compensation adjustment
Compare resolution ratio；The regulation pulse signal is patrolled with first reference voltage signal and the second reference voltage signal respectively
Computing is collected, maximum duty cycle resolution ratio and minimum duty cycle resolution ratio to the drive pulse signal to be output are limited
Protection.
The present invention also provides a kind of ultrasonic system, and the ultrasonic system includes described drive signal generation device.
As described above, the drive signal generation device of ultrasonic transducer of the present invention, method and ultrasonic system, have
Following beneficial effect：
The present invention can carry out accuracy compensation to drive signal, can improve the resolution ratio of the PWM duty cycle of drive signal,
Also there is minimum duty cycle and maximum duty cycle parameter protection function simultaneously.
Brief description of the drawings
One kind that Fig. 1 is shown as the drive signal generation device described in the embodiment of the present invention realizes structural representation.
Fig. 2 is shown as the one of the first waveform signal generation unit of the drive signal generation device described in the embodiment of the present invention
Plant and realize structural representation.
Fig. 3 is shown as the one of the first waveform signal generation unit of the drive signal generation device described in the embodiment of the present invention
Plant electrical block diagram.
Fig. 4 is shown as the one of the second waveform signal generation unit of the drive signal generation device described in the embodiment of the present invention
Plant and realize structural representation.
Fig. 5 is shown as the one of the second waveform signal generation unit of the drive signal generation device described in the embodiment of the present invention
Plant electrical block diagram.
One kind that Fig. 6 is shown as the drive signal generation unit of the drive signal generation device described in the embodiment of the present invention is real
Existing structural representation.
Fig. 7 is shown as one kind electricity of the drive signal generation unit of the drive signal generation device described in the embodiment of the present invention
Line structure schematic diagram.
Fig. 8 is shown as the work schedule schematic diagram of each signal in Fig. 3, Fig. 5 and Fig. 7.
One kind that Fig. 9 is shown as the driving signal generating method described in the embodiment of the present invention realizes schematic flow sheet.
Component label instructions
100 drive signal generation devices
110 first waveform signal generation units
111 first proportional amplifiers
112 first followers
120 second waveform signal generation units
121 conditioning subelements
122 second proportional amplifiers
123 second followers
130 drive signal generation units
131 maximum duty cycles protect subelement
132 minimum duty cycles protect subelement
133 regulator units
134 logics compensate subelement
S901~S903 steps
Specific embodiment
Embodiments of the present invention are illustrated below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages of the invention and effect easily.The present invention can also be by specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under spirit of the invention.It should be noted that, in the case where not conflicting, following examples and implementation
Feature in example can be mutually combined.
It should be noted that the diagram provided in following examples only illustrates basic structure of the invention in a schematic way
Think, component count, shape and size when only display is with relevant component in the present invention rather than according to actual implementation in schema then
Draw, it is actual when the implementing kenel of each component, quantity and ratio can be a kind of random change, and its assembly layout kenel
It is likely more complexity.
Fig. 1 is referred to, the present invention provides a kind of drive signal generation device, and the drive signal generation device 100 includes：
First waveform signal generation unit 110, the second waveform signal generation unit 120, drive signal generation unit 130.Described first
The generation of waveform signal generation unit 110 one meets the first pre-conditioned triangular signal；Second waveform signal produces single
The generation of unit 120 one meets the second pre-conditioned comparison voltage signal；The drive signal generation unit 130 and the first wave
The output end of shape signal generation unit 110 and the second waveform signal generation unit 120 is respectively connected with, relatively more described triangular signal
With the size of the comparison voltage signal, regulation pulse signal is obtained, it is to be output using the regulation pulse signal compensation adjustment
Drive pulse signal duty cycle resolution, and then the regulation to power output can be realized, reduce the requirement to input voltage.
Further, shown in Figure 2, the first waveform signal generation unit 110 includes：First proportional amplifier 111,
First follower 112.First proportional amplifier 111 receives a triangle wave source signal, and the triangle wave source signal is pressed
Preset ratio is amplified, and exports the triangular signal for amplifying.First follower 112 and first proportional amplifier 111
Output end is connected, and the triangular signal of the amplification is carried out to follow the treatment output triangular signal.The first waveform
A kind of exemplary circuit of signal generation unit 110 realizes that structure is shown in Figure 3, including the first proportional amplifier U1C, first
Follower U1B；The positive input of the first proportional amplifier U1C receives triangular signal T1, and the first proportional amplifier U1C's is anti-
It is grounded by resistance R3 to input；The output end of the first proportional amplifier U1C is meeting the first follower U1B just by resistance R2
To input, the reverse input end of the first follower U1B connects the output end of the first follower U1B by resistance R5；First follows
The output end output signal T3 of device U1B.By DDS (Direct Digital Synthesizer, direct digital frequency synthesier
Device) triangular signal T1 inputs are produced, by proportional amplifier U1C, the triangular signal T2 for producing suitable system to need, then by
Follower U1B obtains signal T3 (i.e. VTriangleWave).Wherein, compared with traditional frequency synthesizer, DDS have it is low into
The advantages of sheet, low-power consumption, high-resolution and fast conversion times, telecommunications and electronic instrumentation are widely used in, are to realize setting
One key technology of standby total digitalization.
Further, shown in Figure 4, the second waveform signal generation unit 120 includes：Conditioning subelement 121, second
Proportional amplifier 122, the second follower 123.It is straight that one pulse width modulating signal is converted into first by the conditioning subelement 121
Stream voltage signal.Second proportional amplifier 122 is connected with the output end of the conditioning subelement 121, straight by described first
Stream voltage signal is enlarged into the second d. c. voltage signal by preset ratio.Second follower 123 is put with second ratio
The output end of big device 122 is connected, and second d. c. voltage signal is carried out to follow the treatment output comparison voltage signal.Institute
A kind of exemplary circuit for stating the second waveform signal generation unit 120 realizes that structure is shown in Figure 5, the conditioning subelement bag
Triode Q1, Q2, Q3 are included, the base stage of triode Q2 accesses pwm signal, the grounded emitter of triode Q2, three by resistance R8
The colelctor electrode of pole pipe Q2 meets supply voltage 12V by resistance R12, and the colelctor electrode of triode Q2 meets triode Q1 by resistance R8
Base stage, the colelctor electrode of triode Q2 connects the base stage of triode Q3 by resistance R17；The emitter stage output voltage of triode Q1
V1, the emitter stage of triode Q1 connects the base stage of triode Q1 by resistance R10；The emitter stage of triode Q3 connects the hair of triode Q1
Emitter-base bandgap grading, the grounded collector of triode Q3, the emitter stage of triode Q3 connects the base stage of triode Q3 by resistance R16.Described
Two proportional amplifiers are U1D, and the positive input of U1D connects the emitter stage of triode Q1 by resistance R15, R14, R13 for connecting；
The output end of U1D connects the reverse input end of U1D by resistance R6, and the reverse input end of U1D is grounded by resistance R9.Second follows
The positive input of device U1A connects the output end of U1D by resistance R11；The output end output comparison voltage letter of the second follower U1A
Number Vcmp, the output end of the second follower U1A connects the reverse input end of the output end of the second follower U1A by resistance R7.By
PWM (Pulse Width Modulation, pulse width modulation) signal that single-chip microcomputer is produced, by the circuit for nursing one's health subelement
After element Q1, Q2, Q3, d. c. voltage signal V1 is obtained, by proportional amplifier U1D, obtains the signal V2 of suitable system demand,
Comparison voltage signal Vcmp is obtained by follower U1A again.
Further, shown in Figure 6, the drive signal generation unit 130 includes：Maximum duty cycle protects subelement
131, minimum duty cycle protection subelement 132, regulator unit 133, logic compensation subelement 134.The maximum duty cycle is protected
Shield subelement 131 compares the size of the triangular signal and the first predeterminated voltage signal, and the first reference voltage signal of output is made
It is the first duty cycle adjustment parameter.The minimum duty cycle protection subelement 132 compares the triangular signal and second to be preset
The size of voltage signal, the second reference voltage signal of output is used as the second duty cycle adjustment parameter.The regulator unit 133 compares
The triangular signal and the size of the comparison voltage signal, to export and treat defeated described in the regulation pulse signal compensation adjustment
The duty cycle resolution of the drive pulse signal for going out.The logic compensation subelement 134 is single with maximum duty cycle protection
Unit, minimum duty cycle protection subelement and regulator unit are respectively connected with, by the regulation pulse signal respectively with described first
Reference voltage signal and the second reference voltage signal carry out logical operation, and the maximum to the drive pulse signal to be output is accounted for
Sky carries out limitation protection than resolution ratio and minimum duty cycle resolution ratio.The drive signal generation unit 130 it is a kind of exemplary
Circuit realiration structure is shown in Figure 7, and the maximum duty cycle protection subelement includes comparator U2A and switching tube Q6；Compare
The positive input of device U2A meets triangular signal VTriangleWave, and it is electric that the reverse input end of comparator U2A connects the comparing
Pressure signal Vcmp；The output end of comparator U2A connects the base stage of switching tube Q6 by resistance R35.Maximum duty cycle protection
Unit includes comparator U2B and switching tube Q4；The positive input of comparator U2B meets comparison voltage signal Vcmp2, comparator
The reverse input end of U2B meets the signal T3；The output end of comparator U2B connects the base stage of switching tube Q4 by resistance R23.It is described
Minimum duty cycle protection subelement includes comparator U2D and switching tube Q5；The positive input of comparator U2D connects comparison voltage letter
Number Vcmp1, the reverse input end of comparator U2D meets the signal T3；The output end of comparator U2D connects switch by resistance R30
The base stage of pipe Q5.The regulator unit includes OR gate U3, and two inputs of OR gate U3 connect the colelctor electrode of switching tube Q5 respectively
With the colelctor electrode of switching tube Q6.The logic compensation subelement includes connecing OR gate respectively with door U4, two inputs with door U4
The output end of U3 and the colelctor electrode of switching tube Q4；With the output end output signal Vout_c of door U4.Comparison voltage signal (or ratio
Compared with voltage signal) Vcmp, triangular signal VTriangleWave obtain signal Vout by comparator U2A, then by switching tube
After Q6, signal Vout_a is obtained；The the first predeterminated voltage signal obtained by resistance R29, R31 partial pressure (can also claim first to compare
Voltage signal) Vcmp1 and triangular signal VTriangleWave obtains signal Vout1 by comparator U2D, then pass through switch
After pipe Q5, signal Vout1_a is obtained；The the second predeterminated voltage signal obtained by resistance R24, R26 partial pressure (can also claim the second ratio
Compared with voltage signal) Vcmp2 and triangular signal VTriangleWave obtains signal Vout2 by comparator U2D, then process is opened
After closing pipe Q4, signal Vout2_a is obtained；Signal Vout ' and Vout1 ' is by obtaining signal Vout_b, signal after OR gate U3
Vout_b and Vout2_a is obtaining signal Vout_c after with door U4.
The work schedule of each signal described in Fig. 3, Fig. 5 and Fig. 7 is shown in Figure 8.
The drive pulse signal of drive signal generation device output of the present invention can be used for driving ultrasound to change
Can device.
The duty cycle adjustment resolution ratio of the drive pulse signal that drive signal generation device of the present invention is produced is higher,
Power Control to ultrasonic transducer is finer and smoother.
The present invention also provides a kind of driving signal generating method, and the drive signal generation device can realize institute of the present invention
The driving signal generating method stated, but driving signal generating method of the present invention realizes device including but not limited to this reality
Apply the structure of the drive signal generation device that example is enumerated, the malformation in the prior art that every principle of the invention is done
And replacement, it is included in protection scope of the present invention.
The protection domain of driving signal generating method of the present invention is not limited to be performed the step of the present embodiment is enumerated suitable
Sequence, increase and decrease, step are replaced realized scheme and are included in the step of in the prior art that every principle of the invention is done
In protection scope of the present invention.
Shown in Figure 9, the driving signal generating method includes：
S901, generation one meets the first pre-conditioned triangular signal.Specifically, the step S901 generations one meet
A kind of implementation process of the first pre-conditioned triangular signal includes：A triangle wave source is received using the first proportional amplifier to believe
Number, and the triangle wave source signal is amplified by preset ratio, export the triangular signal for amplifying；Using the first follower by institute
Stating the triangular signal of amplification carries out following the treatment output triangular signal.
S802, generation one meets the second pre-conditioned comparison voltage signal.Specifically, the step S902 generations one are accorded with
A kind of implementation process for closing the second pre-conditioned comparison voltage signal includes：One pulse width modulating signal is converted into first
D. c. voltage signal；First d. c. voltage signal is enlarged into the second direct current by preset ratio using the second proportional amplifier
Voltage signal；Second d. c. voltage signal is carried out using the second follower follow the treatment output comparison voltage to believe
Number.
S903, relatively more described triangular signal and the size of the comparison voltage signal, obtain regulation pulse signal, utilize
The duty cycle resolution of regulation pulse signal compensation adjustment drive pulse signal to be output.Specifically, the step
The S903 triangular signals and the size of the comparison voltage signal, obtain regulation pulse signal, using the regulation
A kind of implementation process of the duty cycle resolution of pulse signal compensation adjustment drive pulse signal to be output includes：Compare described
The size of triangular signal and the first predeterminated voltage signal, the first reference voltage signal of output is joined as the first duty cycle adjustment
Number；Compare the size of the triangular signal and the second predeterminated voltage signal, the second reference voltage signal of output is accounted for as second
Sky compares regulation parameter；Compare the size of the triangular signal and the comparison voltage signal, export the regulation pulse signal
The duty cycle resolution of drive pulse signal to be output described in compensation adjustment；By the regulation pulse signal respectively with described the
One reference voltage signal and the second reference voltage signal carry out logical operation, to the maximum of the drive pulse signal to be output
Duty cycle resolution and minimum duty cycle resolution ratio carry out limitation protection.
The present invention also provides a kind of ultrasonic system, and the ultrasonic system includes above-mentioned drive signal generation device.It is described super
Sound system is ultrasonic surgical systems, for example ultrasound osteotome system, ultrasonic suction knife system, ultrasonic cut hemostatic cutter system etc., is entered
One step, the ultrasonic surgical systems may also include the handle and be installed on the handle that main frame electrically connects with the main frame
The cutter of front end, in the main frame, the ultrasonic transducer is located in the handle drive signal generation device, institute
The drive pulse signal for stating the output of drive signal generation device drives the ultrasonic transducer, the ultrasonic transducer to turn electric energy
It is changed to mechanical energy and passes to the cutter and tissue is processed.Or the ultrasonic system is ultrasonic test system.
The present invention can carry out accuracy compensation to drive signal, can improve the resolution ratio of the PWM duty cycle of drive signal,
Also there is minimum duty cycle and maximum duty cycle parameter protection function simultaneously.
In sum, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under without prejudice to spirit and scope of the invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
Into all equivalent modifications or change, should be covered by claim of the invention.
Claims (10)
1. a kind of drive signal generation device, it is characterised in that the drive signal generation device includes：
First waveform signal generation unit, generation one meets the first pre-conditioned triangular signal；
Second waveform signal generation unit, generation one meets the second pre-conditioned comparison voltage signal；
Drive signal generation unit, with the first waveform signal generation unit and the output end of the second waveform signal generation unit
It is respectively connected with, the size of relatively more described triangular signal and the comparison voltage signal is obtained and adjusts pulse signal, using described
The duty cycle resolution of regulation pulse signal compensation adjustment drive pulse signal to be output.
2. drive signal generation device according to claim 1, it is characterised in that：The first waveform signal generation unit
Including：
First proportional amplifier, receives a triangle wave source signal, and the triangle wave source signal is amplified by preset ratio, output
The triangular signal of amplification；
First follower, the output end with first proportional amplifier is connected, by the triangular signal of the amplification carry out with
With the treatment output triangular signal.
3. drive signal generation device according to claim 1, it is characterised in that：The second waveform signal generation unit
Including：
Conditioning subelement, the first d. c. voltage signal is converted into by a pulse width modulating signal；
Second proportional amplifier, the output end with the conditioning subelement is connected, by first d. c. voltage signal by default
Scaling is the second d. c. voltage signal；
Second follower, the output end with second proportional amplifier is connected, by second d. c. voltage signal carry out with
With the treatment output comparison voltage signal.
4. drive signal generation device according to claim 1, it is characterised in that：The drive signal generation unit bag
Include：
Maximum duty cycle protects the size of subelement, relatively more described triangular signal and the first predeterminated voltage signal, output first
Reference voltage signal is used as the first duty cycle adjustment parameter；
Minimum duty cycle protects the size of subelement, relatively more described triangular signal and the second predeterminated voltage signal, output second
Reference voltage signal is used as the second duty cycle adjustment parameter；
Regulator unit, relatively more described triangular signal and the size of the comparison voltage signal, export the regulation pulse letter
The duty cycle resolution of drive pulse signal to be output described in number compensation adjustment；
Logic compensates subelement, and subelement, minimum duty cycle protection subelement and regulator list are protected with the maximum duty cycle
Unit is respectively connected with, and the regulation pulse signal is carried out with first reference voltage signal and the second reference voltage signal respectively
Logical operation, maximum duty cycle resolution ratio and minimum duty cycle resolution ratio to the drive pulse signal to be output are limited
System protection.
5. drive signal generation device according to claim 1, it is characterised in that：The drive signal generation device output
Drive pulse signal be used for drive a ultrasonic transducer.
6. a kind of driving signal generating method, it is characterised in that the driving signal generating method includes：
Generation one meets the first pre-conditioned triangular signal；
Generation one meets the second pre-conditioned comparison voltage signal；
Compare the size of the triangular signal and the comparison voltage signal, regulation pulse signal is obtained, using the regulation
The duty cycle resolution of pulse signal compensation adjustment drive pulse signal to be output.
7. driving signal generating method according to claim 6, it is characterised in that：The generation one meets the first default bar
A kind of implementation process of the triangular signal of part includes：
A triangle wave source signal is received using the first proportional amplifier, and the triangle wave source signal is amplified by preset ratio,
Export the triangular signal for amplifying；
The triangular signal of the amplification is carried out using the first follower follow the treatment output triangular signal.
8. driving signal generating method according to claim 6, it is characterised in that：The generation one meets the second default bar
A kind of implementation process of the comparison voltage signal of part includes：
One pulse width modulating signal is converted into the first d. c. voltage signal；
First d. c. voltage signal is enlarged into the second d. c. voltage signal by preset ratio using the second proportional amplifier；
Second d. c. voltage signal is carried out using the second follower follow the treatment output comparison voltage signal.
9. driving signal generating method according to claim 6, it is characterised in that：Compensated using the regulation pulse signal
A kind of implementation process of the duty cycle resolution of regulation drive pulse signal to be output includes：
Compare the size of the triangular signal and the first predeterminated voltage signal, the first reference voltage signal of output is accounted for as first
Sky compares regulation parameter；
Compare the size of the triangular signal and the second predeterminated voltage signal, the second reference voltage signal of output is accounted for as second
Sky compares regulation parameter；
Compare the size of the triangular signal and the comparison voltage signal, export the regulation pulse signal compensation adjustment institute
State the duty cycle resolution of drive pulse signal to be output；
The regulation pulse signal is carried out into logic fortune with first reference voltage signal and the second reference voltage signal respectively
Calculate, maximum duty cycle resolution ratio and minimum duty cycle resolution ratio to the drive pulse signal to be output carry out limitation guarantor
Shield.
10. a kind of ultrasonic system, it is characterised in that：Including the drive signal generation device as described in claim any one of 1-5.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111245408A (en) * | 2020-03-27 | 2020-06-05 | 深圳市创新微源半导体有限公司 | Novel duty cycle clamping circuit |
| CN112054741A (en) * | 2020-08-06 | 2020-12-08 | 深圳市杉川机器人有限公司 | Motor control method and device, terminal equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905340A (en) * | 2005-07-29 | 2007-01-31 | 松下电器产业株式会社 | Method and apparatus for controlling the charge of a bootstrap capacitor for non-synchronous type DC-DC converter |
| US20070290722A1 (en) * | 2006-06-20 | 2007-12-20 | Yu Jin Jang | Liquid crystal display backlight inverter |
| US20100308761A1 (en) * | 2009-06-09 | 2010-12-09 | Ricoh Company, Ltd. | Motor Driver Control Method, Motor Driver Control Device, Motor Control Device, And Image Forming Apparatus |
| US20110221541A1 (en) * | 2010-03-15 | 2011-09-15 | Ricoh Company, Ltd. | Pulse width modulation signal generator and method |
| CN103227566A (en) * | 2013-04-22 | 2013-07-31 | 华为技术有限公司 | DC-DC converter |
| CN105226983A (en) * | 2015-11-02 | 2016-01-06 | 南京航空航天大学 | A kind of modulator approach of many level PWMs based on mixed carrier |
| CN206498385U (en) * | 2017-02-28 | 2017-09-15 | 重庆西山科技股份有限公司 | Drive signal generation device and ultrasonic system |
-
2017
- 2017-02-28 CN CN201710113483.XA patent/CN106862046B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905340A (en) * | 2005-07-29 | 2007-01-31 | 松下电器产业株式会社 | Method and apparatus for controlling the charge of a bootstrap capacitor for non-synchronous type DC-DC converter |
| US20070290722A1 (en) * | 2006-06-20 | 2007-12-20 | Yu Jin Jang | Liquid crystal display backlight inverter |
| US20100308761A1 (en) * | 2009-06-09 | 2010-12-09 | Ricoh Company, Ltd. | Motor Driver Control Method, Motor Driver Control Device, Motor Control Device, And Image Forming Apparatus |
| US20110221541A1 (en) * | 2010-03-15 | 2011-09-15 | Ricoh Company, Ltd. | Pulse width modulation signal generator and method |
| CN103227566A (en) * | 2013-04-22 | 2013-07-31 | 华为技术有限公司 | DC-DC converter |
| CN105226983A (en) * | 2015-11-02 | 2016-01-06 | 南京航空航天大学 | A kind of modulator approach of many level PWMs based on mixed carrier |
| CN206498385U (en) * | 2017-02-28 | 2017-09-15 | 重庆西山科技股份有限公司 | Drive signal generation device and ultrasonic system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111245408A (en) * | 2020-03-27 | 2020-06-05 | 深圳市创新微源半导体有限公司 | Novel duty cycle clamping circuit |
| CN111245408B (en) * | 2020-03-27 | 2021-12-07 | 深圳市微源半导体股份有限公司 | Duty ratio clamping circuit |
| CN112054741A (en) * | 2020-08-06 | 2020-12-08 | 深圳市杉川机器人有限公司 | Motor control method and device, terminal equipment and storage medium |
| CN112054741B (en) * | 2020-08-06 | 2022-06-03 | 深圳市杉川机器人有限公司 | Motor control method and device, terminal equipment and storage medium |
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| CN106862046B (en) | 2022-03-29 |
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