CN110061610A - Ultrasonic-frequency power supply system and its control method - Google Patents
Ultrasonic-frequency power supply system and its control method Download PDFInfo
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- CN110061610A CN110061610A CN201910397805.7A CN201910397805A CN110061610A CN 110061610 A CN110061610 A CN 110061610A CN 201910397805 A CN201910397805 A CN 201910397805A CN 110061610 A CN110061610 A CN 110061610A
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- 238000005070 sampling Methods 0.000 claims description 16
- 239000000523 sample Substances 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 11
- 230000015654 memory Effects 0.000 description 20
- 238000013461 design Methods 0.000 description 19
- 238000004590 computer program Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 230000005540 biological transmission Effects 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0012—Control circuits using digital or numerical techniques
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The present invention provides a kind of ultrasonic-frequency power supply system and its control method, this method, comprising: determine the working frequency of ultrasonic device；According to the working frequency, the switching frequency F of digital switch power supply is determinedSW；Output switching frequency is FSWTarget voltage.Interference of the digital switch power supply to ultrasonic device working frequency can be reduced, the imaging effect of supersonic imaging apparatus is improved.
Description
Technical field
The present invention relates to power technique fields more particularly to a kind of ultrasonic-frequency power supply systems and its control method.
Background technique
With the development of ultrasonication technology, ultrasonic wave be will be used wider and wider.Ultrasonic imaging technique, because having
In real time, inexpensively, Noninvasive and it is widely used for clinical diagnosis the advantages that Non-ionizing radiation.In ultrasonic imaging application, sense
The frequency (working frequency of ultrasonic device) of signal-of-interest can change with different applications, setting.
Currently, supersonic imaging apparatus generally uses digital switch power supply to provide electric energy.
But since the work of digital switch power supply can generate the signal of specific frequency, when the work of digital switch power supply
When frequency is approached or is overlapped with the frequency of signal of interest in ultrasonic imaging application, the processing difficulty of ultrasonic signal will increase, it is right
Imaging results interfere.When there are the frequencies that when multiple digital power units, digital switch power supply is generated in ultrasonic image-forming system
Rate interference phenomenon becomes apparent.
Summary of the invention
The present invention provides a kind of ultrasonic-frequency power supply system and its control method, can reduce digital switch power supply to ultrasonic device
The interference of working frequency improves the imaging effect of supersonic imaging apparatus.
In a first aspect, the embodiment of the present invention provides a kind of ultrasonic-frequency power supply system, comprising:
Processor, for determining the working frequency of ultrasonic device；
Power-supply controller of electric, for determining the switching frequency F of digital switch power supply according to the working frequencySW；
Digital switch power supply is F for exporting switching frequencySWTarget voltage.
In a kind of possible design, further includes: digital pulse-width modulator, the digital pulse-width modulator, in institute
The switching frequency F of power-supply controller of electric offer is providedSWUnder, control signal is generated according to preset pulse width PW；So that the number
Word switch power supply exports target voltage according to the control signal.
In a kind of possible design, the preset pulse width PW is by power-supply controller of electric according to the defeated of system requirements
Enter voltage VIN, output voltage VOUTAnd switching frequency FSWIt is calculated, calculation formula is as follows:
PW=VOUT/(VIN*FSW)。
In a kind of possible design, the working frequency include: frequency probe, ultrasonic signal emission repetition rate,
The reception frequency of ultrasonic signal；Wherein, the switching frequency F of the working frequency and the digital switch power supplySWIt is not identical.
In a kind of possible design, further includes: analog-digital converter；The analog-digital converter, is specifically used for:
Real-time sampling is carried out to the target voltage of digital switch power supply output, obtains the sampled value of target voltage；
The sampled value of the target voltage is sent to the power-supply controller of electric.
In a kind of possible design, the power-supply controller of electric is also used to:
Error voltage is determined according to the sampled value of the target voltage, preset reference voltage value；
The control signal that digital pulse-width modulator generates is finely adjusted according to the error voltage, so that power supply exports
Target voltage match with preset reference voltage.
In a kind of possible design, further includes: analog-digital converter and compensating filter；
The analog-digital converter, the target voltage for exporting to digital switch power supply carry out real-time sampling, obtain target
The sampled value of voltage, and the sampled value of the target voltage is sent to the compensating filter；
The compensating filter is missed for being determined according to the sampled value of the target voltage, preset reference voltage value
Potential difference；And the gain and phase of the error voltage are adjusted, the error voltage after being adjusted, after the adjustment
Error voltage be sent to the power-supply controller of electric.
In a kind of possible design, the power-supply controller of electric is also used to:
According to the sampled value of the target voltage, preset reference voltage value and error voltage adjusted to number
The control signal that pulse width modulator generates is finely adjusted, so that the target voltage of digital switch power supply output and preset reference
Voltage matches.
Second aspect, the embodiment of the present invention provide a kind of control method of ultrasonic-frequency power supply system, are applied in first aspect
In described in any item ultrasonic-frequency power supply systems, which comprises
Determine the working frequency of ultrasonic device；
According to the working frequency, the switching frequency F of digital switch power supply is determinedSW；
Output switching frequency is FSWTarget voltage.
In a kind of possible design, the output switching frequency is FSWTarget voltage, comprising:
In the switching frequency FSWUnder, control signal is generated according to preset pulse width PW；According to the control signal,
Export target voltage.
In a kind of possible design, the preset pulse width PW is the input voltage V by system requirementsIN, output
Voltage VOUTAnd switching frequency FSWIt is calculated, calculation formula is as follows:
PW=VOUT/(VIN*FSW)。
In a kind of possible design, the working frequency include: frequency probe, ultrasonic signal emission repetition rate,
The reception frequency of ultrasonic signal；Wherein, the switching frequency F of the working frequency and the digital switch power supplySWIt is not identical.
In a kind of possible design, further includes:
Real-time sampling is carried out to the target voltage of digital switch power supply output, obtains the sampled value of target voltage；
The sampled value of the target voltage is sent to the power-supply controller of electric.
In a kind of possible design, further includes:
Error voltage is determined according to the sampled value of the target voltage, preset reference voltage value；
The control signal that digital pulse-width modulator generates is finely adjusted according to the error voltage, so that power supply exports
Target voltage match with preset reference voltage.
In a kind of possible design, further includes:
Real-time sampling is carried out to the target voltage of digital switch power supply output, obtains the sampled value of target voltage, and by institute
The sampled value for stating target voltage is sent to the compensating filter；
Error voltage is determined according to the sampled value of the target voltage, preset reference voltage value；And to the error
The gain of voltage and phase are adjusted, the error voltage after being adjusted, and the error voltage adjusted is sent to institute
State power-supply controller of electric.
In a kind of possible design, further includes:
According to the sampled value of the target voltage, preset reference voltage value and error voltage adjusted to number
The control signal that pulse width modulator generates is finely adjusted, so that the target voltage of digital switch power supply output and preset reference
Voltage matches.
The third aspect, the embodiment of the present invention provide a kind of ultrasonic-frequency power supply control system, comprising: memory, for storing journey
Sequence；Processor, for executing the described program of the memory storage, when described program is performed, for executing such as second
The control method of ultrasonic-frequency power supply system described in any one of aspect.
Fourth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, comprising: computer program, when it
When running on computers, so that computer executes the control method of any ultrasonic-frequency power supply system in second aspect.
5th aspect, the embodiment of the present invention provide a kind of program product, and described program product includes: computer program, institute
It states computer program to be stored in readable storage medium storing program for executing, at least one processor of server can be from the readable storage medium storing program for executing
The computer program is read, at least one described processor executes the computer program and server is made to execute second aspect
In any ultrasonic-frequency power supply system control method.
Ultrasonic-frequency power supply system and its control method provided by the invention, by the working frequency for determining ultrasonic device；According to
The working frequency determines the switching frequency F of digital switch power supplySW；Export target voltage.So as to reduce digital switch electricity
Interference of the source to ultrasonic device working frequency, improves the imaging effect of supersonic imaging apparatus.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic illustration of an application scenarios of the invention；
Fig. 2 is the flow chart of the control method for the ultrasonic-frequency power supply system that the embodiment of the present invention one provides；
Fig. 3 is the flow chart of the control method of ultrasonic-frequency power supply system provided by Embodiment 2 of the present invention；
Fig. 4 is the flow chart of the control method for the ultrasonic-frequency power supply system that the embodiment of the present invention three provides；
Fig. 5 is the structural schematic diagram for the ultrasonic-frequency power supply system that the embodiment of the present invention four provides；
Fig. 6 is the structural schematic diagram for the ultrasonic-frequency power supply system that the embodiment of the present invention five provides；
Fig. 7 is the structural schematic diagram for the ultrasonic-frequency power supply system that the embodiment of the present invention six provides；
Fig. 8 is the structural schematic diagram for the ultrasonic-frequency power supply control system that the embodiment of the present invention seven provides.
Through the above attached drawings, it has been shown that the specific embodiment of the disclosure will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of this disclosure concept by any means with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate the concept of the disclosure.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein, such as can be with
Sequence other than those of illustrating or describing herein is implemented.In addition, term " includes " and " having " and their times
What is deformed, it is intended that cover it is non-exclusive include, for example, contain the process, method of a series of steps or units, system,
Product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for
The intrinsic other step or units of these process, methods, product or equipment.
Technical solution of the present invention is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 1 is the schematic illustration of an application scenarios of the invention, as shown in Figure 1, in ultrasonic imaging application, letter interested
Number frequency there are many, and with detection position, detection setting difference and change.The frequency of these signal of interest
It include: the working frequency of probe, repetition rate, the repetition rate of ultrasonic signal emission of ultrasonic signal emission etc..Due to number
The work of Switching Power Supply can generate the signal of specific frequency, feel when in the working frequency and ultrasonic imaging application of digital switch power supply
When the frequency of signal-of-interest is close or is overlapped, it will increase the processing difficulty of ultrasonic signal, imaging results interfered.Therefore,
The present invention is according to the working frequency of ultrasonic device, the i.e. working frequency 11, the repetition rate of ultrasonic signal emission of probe in figure
12, the reception frequency 13 of ultrasonic signal, ultrasonic-frequency power supply system 14 determine the switching frequency F of digital switch power supplySW, then output is opened
Pass frequency is FSWTarget voltage 15.Due to the frequency and the working frequency 11 of probe of target voltage 15, ultrasonic signal emission
Repetition rate 12, the repetition rate of ultrasonic signal emission 13 be not identical, so as to reduce digital switch power supply to ultrasonic device
The interference of working frequency improves the imaging effect of supersonic imaging apparatus.
The present embodiment, by the working frequency for determining ultrasonic device；According to working frequency, opening for digital switch power supply is determined
Close frequency FSW；In switching frequency FSWUnder, control signal is generated according to preset pulse width PW；According to control signal, mesh is exported
Mark voltage.So as to reducing interference of the digital switch power supply to ultrasonic device working frequency, improve supersonic imaging apparatus at
As effect.
How to be solved with technical solution of the specifically embodiment to technical solution of the present invention and the application below above-mentioned
Technical problem is described in detail.These specific embodiments can be combined with each other below, for the same or similar concept
Or process may repeat no more in certain embodiments.Below in conjunction with attached drawing, the embodiment of the present invention is described.
Fig. 2 is the flow chart of the control method for the ultrasonic-frequency power supply system that the embodiment of the present invention one provides, as shown in Fig. 2, this
Method in embodiment may include:
S101, the working frequency for determining ultrasonic device.
In the present embodiment, there are many working frequencies of ultrasonic device, and with detection position, detection setting difference and
It changes.The working frequency of these ultrasonic devices includes: the working frequency of probe, and the repetition rate of ultrasonic signal emission surpasses
The repetition rate of acoustical signal transmitting.Processor determines the working frequency of ultrasonic device, to most according to the application and setting of user
The switching frequency F of digital switch power supply is determined eventuallySW, so that the switching frequency F of working frequency and digital switch power supplySWNot phase
Together.
It should be noted that the present embodiment does not limit the type of the working frequency of ultrasonic device, those skilled in the art
Can increase according to the actual situation or reduce ultrasonic device working frequency type.Meanwhile the present embodiment do not limit yet it is super
The acquisition pattern of the working frequency of acoustic equipment, those skilled in the art can reasonably select ultrasonic device according to the actual situation
The acquisition pattern of working frequency.For example, obtain working frequency from the product description of ultrasonic device or probe, or pass through the
Tripartite's detecting instrument obtains working frequency.
S102, according to working frequency, determine the switching frequency F of digital switch power supplySW。
In the present embodiment, working frequency is sent to power-supply controller of electric by processor, and power-supply controller of electric is according to working frequency, really
The switching frequency F of fixed number word switch power supplySW.Wherein, the switching frequency F of digital switch power supplySWWith any one in working frequency
A frequency is all different.
In a kind of possible design, preset pulse width PW is the input electricity by power-supply controller of electric according to system requirements
Press VIN, output voltage VOUTAnd switching frequency FSWIt is calculated, calculation formula is as follows:
PW=VOUT/(VIN*FSW)。
S103, output switching frequency are FSWTarget voltage.
In the present embodiment, switching frequency F that digital pulse-width modulator is provided according to power-supply controller of electricSW, preset pulse it is wide
It spends PW and generates control signal；So that digital switch power supply exports target voltage according to control signal.
In the present embodiment, digital power switchs the control signal generated according to digital pulse-width modulator, exports switching frequency
FSWTarget power, provide electric energy for ultrasonic device.
The present embodiment, by the working frequency for determining ultrasonic device；According to working frequency, opening for digital switch power supply is determined
Close frequency FSW；In switching frequency FSWUnder, control signal is generated according to preset pulse width PW；According to control signal, mesh is exported
Mark voltage.So as to reducing interference of the digital switch power supply to ultrasonic device working frequency, improve supersonic imaging apparatus at
As effect.
Fig. 3 is the flow chart of the control method of ultrasonic-frequency power supply system provided by Embodiment 2 of the present invention, as shown in figure 3, this
Method in embodiment may include:
S201, the working frequency for determining ultrasonic device.
S202, according to working frequency, determine the switching frequency F of digital switch power supplySW。
S203, output switching frequency are FSWTarget voltage.
In the present embodiment, step S201~step S203 specific implementation process and technical principle are shown in Figure 2
Associated description in method in step S101~step S103, details are not described herein again.
S204, real-time sampling is carried out to the target voltage of digital switch power supply output, obtains the sampled value of target voltage.
In the present embodiment, real-time sampling is carried out to the target voltage that digital switch power supply exports by analog-digital converter, is obtained
Power-supply controller of electric is sent to the sampled value of target voltage, and by sampled value.
S205, error voltage is determined according to the sampled value of target voltage, preset reference voltage value.
In the present embodiment, power-supply controller of electric determines error according to the sampled value of target voltage, preset reference voltage value
Voltage.
S206, the control signal that digital pulse-width modulator generates is finely adjusted according to error voltage, so that power supply is defeated
Target voltage out matches with preset reference voltage.
In the present embodiment, power-supply controller of electric carries out the control signal that digital pulse-width modulator generates according to error voltage micro-
It adjusts, so that the target voltage of power supply output matches with preset reference voltage, to realize closed-loop control, improves output
The precision of target voltage.
The present embodiment, by the working frequency for determining ultrasonic device；According to working frequency, opening for digital switch power supply is determined
Close frequency FSW；In switching frequency FSWUnder, control signal is generated according to preset pulse width PW；According to control signal, mesh is exported
Mark voltage.So as to reducing interference of the digital switch power supply to ultrasonic device working frequency, improve supersonic imaging apparatus at
As effect.
In addition, this implementation carries out real-time sampling by the target voltage exported to digital switch power supply, target voltage is obtained
Sampled value；Error voltage is determined according to the sampled value of target voltage, preset reference voltage value；According to error voltage logarithm
The control signal that word pulse width modulator generates is finely adjusted, so that the target voltage of power supply output and preset reference voltage phase
Matching.Closed-loop control is carried out to the target voltage of digital switch power supply output to realize, it is defeated to improve digital switch power supply
The precision of target voltage out.
Fig. 4 is the flow chart of the control method for the ultrasonic-frequency power supply system that the embodiment of the present invention three provides, as shown in figure 4, this
Method in embodiment may include:
S301, the working frequency for determining ultrasonic device.
S302, according to working frequency, determine the switching frequency F of digital switch power supplySW。
S303, output switching frequency are FSWTarget voltage.
In the present embodiment, step S301~step S303 specific implementation process and technical principle are shown in Figure 2
Associated description in method in step S101~step S103, details are not described herein again.
S304, real-time sampling is carried out to the target voltage of digital switch power supply output, obtains the sampled value of target voltage.
In the present embodiment, real-time sampling is carried out to the target voltage that digital switch power supply exports by analog-digital converter, is obtained
Compensating filter is sent to the sampled value of target voltage, and by the sampled value of target voltage.
S305, error voltage is determined according to the sampled value of target voltage, preset reference voltage value；And to error voltage
Gain and phase be adjusted, the error voltage after being adjusted.
In the present embodiment, determined by compensating filter according to the sampled value of target voltage, preset reference voltage value
Error voltage；And the gain and phase of error voltage are adjusted, the error voltage after being adjusted, by error adjusted
Voltage is sent to power-supply controller of electric.
S306, according to the sampled value of target voltage, preset reference voltage value and error voltage adjusted to number
The control signal that pulse width modulator generates is finely adjusted, so that the target voltage of digital switch power supply output and preset reference
Voltage matches.
In the present embodiment, after sampled value of the power-supply controller of electric according to target voltage, preset reference voltage value, and adjustment
Error voltage the control signal that digital pulse-width modulator generates is finely adjusted so that digital switch power supply output target
Voltage matches with preset reference voltage.To realize closed-loop control, the precision of the target voltage of output is improved.
The present embodiment, by the working frequency for determining ultrasonic device；According to working frequency, opening for digital switch power supply is determined
Close frequency FSW；In switching frequency FSWUnder, control signal is generated according to preset pulse width PW；According to control signal, mesh is exported
Mark voltage.So as to reducing interference of the digital switch power supply to ultrasonic device working frequency, improve supersonic imaging apparatus at
As effect.
In addition, this implementation carries out real-time sampling by the target voltage exported to digital switch power supply, target voltage is obtained
Sampled value；Error voltage is determined according to the sampled value of target voltage, preset reference voltage value；And the increasing to error voltage
Benefit and phase are adjusted, the error voltage after being adjusted；According to the sampled value of target voltage, preset reference voltage value,
And error voltage adjusted is finely adjusted the control signal that digital pulse-width modulator generates, so that digital switch power supply
The target voltage of output matches with preset reference voltage.To realize to digital switch power supply output target voltage into
Row closed-loop control improves the precision of the target voltage of digital switch power supply output.
Fig. 5 is the structural schematic diagram for the ultrasonic-frequency power supply system that the embodiment of the present invention four provides, as shown in figure 5, the present embodiment
In ultrasonic-frequency power supply system may include:
Processor 31, for determining the working frequency of ultrasonic device；
Power-supply controller of electric 32, for determining the switching frequency F of digital switch power supply according to working frequencySW；
Digital switch power supply 34 is F for exporting switching frequencySWTarget voltage.
It optionally, can also include: digital pulse-width modulator 33, the switching frequency F for being provided in power-supply controller of electricSW
Under, control signal is generated according to preset pulse width PW；So that digital switch power supply 34, is used for according to control signal, it is defeated
Target voltage out.
It should be noted that processor 31, power-supply controller of electric 32, the digital pulse-width modulator 33 in the present embodiment can be
Absolute construction is also possible to the integrated morphology integrated.When processor 31, power-supply controller of electric 32, digital pulse-width modulator
33 when being absolute construction, and processor 31, power-supply controller of electric 32, digital pulse-width modulator 33 can be of coupled connections by bus.
In a kind of possible design, preset pulse width PW is the input electricity by power-supply controller of electric according to system requirements
Press VIN, output voltage VOUTAnd switching frequency FSWIt is calculated, calculation formula is as follows:
PW=VOUT/(VIN*FSW)。
In a kind of possible design, working frequency includes: frequency probe, the repetition rate of ultrasonic signal emission, ultrasound
The reception frequency of signal；Wherein, the switching frequency F of working frequency and digital switch power supplySWIt is not identical.
The present embodiment, by the working frequency for determining ultrasonic device；According to working frequency, opening for digital switch power supply is determined
Close frequency FSW；In switching frequency FSWUnder, control signal is generated according to preset pulse width PW；According to control signal, mesh is exported
Mark voltage.So as to reducing interference of the digital switch power supply to ultrasonic device working frequency, improve supersonic imaging apparatus at
As effect.
The ultrasonic-frequency power supply system of the present embodiment can execute the technical solution in method shown in Fig. 2, implement process
With the associated description in technical principle method shown in Figure 2, details are not described herein again.
Fig. 6 is the structural schematic diagram for the ultrasonic-frequency power supply system that the embodiment of the present invention five provides, as shown in fig. 6, the present embodiment
Ultrasonic-frequency power supply system device shown in Fig. 5 on the basis of can also include:
Analog-digital converter 35；Analog-digital converter 35, is specifically used for:
Real-time sampling is carried out to the target voltage of digital switch power supply output, obtains the sampled value of target voltage；
The sampled value of target voltage is sent to power-supply controller of electric.
In a kind of possible design, power-supply controller of electric 32 is also used to:
Error voltage is determined according to the sampled value of target voltage, preset reference voltage value；
The control signal that digital pulse-width modulator generates is finely adjusted according to error voltage, so that the mesh of power supply output
Mark voltage matches with preset reference voltage.
The present embodiment, by the working frequency for determining ultrasonic device；According to working frequency, opening for digital switch power supply is determined
Close frequency FSW；In switching frequency FSWUnder, control signal is generated according to preset pulse width PW；According to control signal, mesh is exported
Mark voltage.So as to reducing interference of the digital switch power supply to ultrasonic device working frequency, improve supersonic imaging apparatus at
As effect.
In addition, this implementation carries out real-time sampling by the target voltage exported to digital switch power supply, target voltage is obtained
Sampled value；Error voltage is determined according to the sampled value of target voltage, preset reference voltage value；According to error voltage logarithm
The control signal that word pulse width modulator generates is finely adjusted, so that the target voltage of power supply output and preset reference voltage phase
Matching.Closed-loop control is carried out to the target voltage of digital switch power supply output to realize, it is defeated to improve digital switch power supply
The precision of target voltage out.
The ultrasonic-frequency power supply system of the present embodiment can execute the technical solution in method shown in Fig. 2, Fig. 3, specific implementation
The associated description of process and technical principle referring to fig. 2, in method shown in Fig. 3, details are not described herein again.
Fig. 7 is the structural schematic diagram for the ultrasonic-frequency power supply system that the embodiment of the present invention six provides, as shown in fig. 7, the present embodiment
Ultrasonic-frequency power supply system device shown in Fig. 5 on the basis of can also include:
Analog-digital converter 35, the target voltage for exporting to digital switch power supply carry out real-time sampling, obtain target electricity
The sampled value of pressure, and the sampled value of target voltage is sent to compensating filter；
Compensating filter 36, for determining error voltage according to the sampled value of target voltage, preset reference voltage value；
And the gain and phase of error voltage are adjusted, the error voltage after being adjusted sends error voltage adjusted
To power-supply controller of electric.
In a kind of possible design, power-supply controller of electric 32 is also used to:
According to the sampled value of target voltage, preset reference voltage value and error voltage adjusted to digital pulse width
The control signal that modulator generates is finely adjusted, so that the target voltage and preset reference voltage of the output of digital switch power supply
Match.
The present embodiment, by the working frequency for determining ultrasonic device；According to working frequency, opening for digital switch power supply is determined
Close frequency FSW；In switching frequency FSWUnder, control signal is generated according to preset pulse width PW；According to control signal, mesh is exported
Mark voltage.So as to reducing interference of the digital switch power supply to ultrasonic device working frequency, improve supersonic imaging apparatus at
As effect.
In addition, this implementation carries out real-time sampling by the target voltage exported to digital switch power supply, target voltage is obtained
Sampled value；Error voltage is determined according to the sampled value of target voltage, preset reference voltage value；And the increasing to error voltage
Benefit and phase are adjusted, the error voltage after being adjusted；According to the sampled value of target voltage, preset reference voltage value,
And error voltage adjusted is finely adjusted the control signal that digital pulse-width modulator generates, so that digital switch power supply
The target voltage of output matches with preset reference voltage.To realize to digital switch power supply output target voltage into
Row closed-loop control improves the precision of the target voltage of digital switch power supply output.
The ultrasonic-frequency power supply system of the present embodiment can execute the technical solution in method shown in Fig. 2, Fig. 4, specific implementation
The associated description of process and technical principle referring to fig. 2, in method shown in Fig. 4, details are not described herein again.
Fig. 8 is the structural schematic diagram for the ultrasonic-frequency power supply control system that the embodiment of the present invention seven provides, as shown in figure 8, this reality
The ultrasonic-frequency power supply control system 40 applied in example may include:
Memory 41, for storing program；Memory 41 may include volatile memory (English: volatile
Memory), for example, random access memory (English: random-access memory, abbreviation: RAM), such as static random-access
Memory (English: static random-access memory, abbreviation: SRAM), double data rate synchronous dynamic random-access
Memory (English: Double Data Rate Synchronous Dynamic Random Access Memory, abbreviation:
DDR SDRAM) etc.；Memory also may include nonvolatile memory (English: non-volatile memory), such as fastly
Flash memory (English: flash memory).Memory 41 is used to store computer program (the application journey as realized the above method
Sequence, functional module etc.), computer instruction etc., above-mentioned computer program, computer instruction etc. can with partitioned storage at one or
In multiple memories 41.And above-mentioned computer program, computer instruction, data etc. can be called with device 42 processed.
Processor 42, for executing the computer program of the storage of memory 41, to realize method that above-described embodiment is related to
In each step.
It specifically may refer to the associated description in previous methods embodiment.
Processor 41 and memory 42 can be absolute construction, be also possible to the integrated morphology integrated.Work as processing
When device 41 and memory 42 are absolute construction, memory 42, processor 41 can be of coupled connections by bus 43.
The server of the present embodiment can execute the technical solution in method shown in Fig. 2, Fig. 3, Fig. 4, implement
The associated description of journey and technical principle referring to fig. 2, in method shown in Fig. 3, Fig. 4, details are not described herein again.
The embodiment of the present application also provides a kind of program product, and program product includes: computer program, computer program storage
In readable storage medium storing program for executing, at least one processor of server can read computer program from readable storage medium storing program for executing, at least
One processor executes the control method that computer program makes server execute above-mentioned ultrasonic-frequency power supply system.
In addition, the embodiment of the present application also provides a kind of computer readable storage medium, deposited in computer readable storage medium
Computer executed instructions are contained, when at least one processor of user equipment executes the computer executed instructions, user equipment
Execute above-mentioned various possible methods.
Wherein, computer-readable medium includes computer storage media and communication media, and wherein communication media includes being convenient for
From a place to any medium of another place transmission computer program.Storage medium can be general or specialized computer
Any usable medium that can be accessed.A kind of illustrative storage medium is coupled to processor, to enable a processor to from this
Read information, and information can be written to the storage medium.Certainly, storage medium is also possible to the composition portion of processor
Point.Pocessor and storage media can be located in ASIC.In addition, the ASIC can be located in user equipment.Certainly, processor and
Storage medium can also be used as discrete assembly and be present in communication equipment.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (12)
1. a kind of ultrasonic-frequency power supply system characterized by comprising
Processor, for determining the working frequency of ultrasonic device；
Power-supply controller of electric, for determining the switching frequency F of digital switch power supply according to the working frequencySW；
Digital switch power supply is F for exporting switching frequencySWTarget voltage.
2. system according to claim 1, which is characterized in that further include:
Digital pulse-width modulator, the switching frequency F for being provided in the power-supply controller of electricSWUnder, according to preset pulse width
PW generates control signal, so that the digital switch power supply exports target voltage according to the control signal.
3. system according to claim 2, which is characterized in that
The preset pulse width PW is the input voltage V by power-supply controller of electric according to system requirementsIN, output voltage VOUT, with
And switching frequency FSWIt is calculated, calculation formula is as follows:
PW=VOUT/(VIN*FSW)。
4. system according to claim 1, which is characterized in that the working frequency includes: frequency probe, ultrasonic signal hair
The reception frequency of the repetition rate, ultrasonic signal penetrated；Wherein, the switching frequency of the working frequency and the digital switch power supply
FSWIt is not identical.
5. system described in any one of -4 according to claim 1, which is characterized in that further include: analog-digital converter；The modulus
Converter is specifically used for:
Real-time sampling is carried out to the target voltage of digital switch power supply output, obtains the sampled value of target voltage；
The sampled value of the target voltage is sent to the power-supply controller of electric.
6. system according to claim 5, which is characterized in that the power-supply controller of electric is also used to:
Error voltage is determined according to the sampled value of the target voltage, preset reference voltage value；
The control signal that digital pulse-width modulator generates is finely adjusted according to the error voltage, so that the mesh of power supply output
Mark voltage matches with preset reference voltage.
7. system described in any one of -4 according to claim 1, which is characterized in that further include: analog-digital converter and compensation filter
Wave device；
The analog-digital converter, the target voltage for exporting to digital switch power supply carry out real-time sampling, obtain target voltage
Sampled value, and the sampled value of the target voltage is sent to the compensating filter；
The compensating filter, for determining error electricity according to the sampled value of the target voltage, preset reference voltage value
Pressure；And the gain and phase of the error voltage are adjusted, the error voltage after being adjusted, by the mistake adjusted
Potential difference is sent to the power-supply controller of electric.
8. system according to claim 7, which is characterized in that the power-supply controller of electric is also used to:
According to the sampled value of the target voltage, preset reference voltage value and error voltage adjusted to digital pulse width
The control signal that modulator generates is finely adjusted, so that the target voltage and preset reference voltage of the output of digital switch power supply
Match.
9. a kind of control method of ultrasonic-frequency power supply system, which is characterized in that be applied to of any of claims 1-8 super
In sound power-supply system, which comprises
Determine the working frequency of ultrasonic device；
According to the working frequency, the switching frequency F of digital switch power supply is determinedSW；
Output switching frequency is FSWTarget voltage.
10. according to the method described in claim 8, it is characterized in that, the output switching frequency is FSWTarget voltage, packet
It includes:
In the switching frequency FSWUnder, control signal is generated according to preset pulse width PW；According to the control signal, output
Target voltage.
11. according to the method described in claim 10, it is characterized in that,
The preset pulse width PW is the input voltage V by system requirementsIN, output voltage VOUTAnd switching frequency FSWMeter
It obtains, calculation formula is as follows:
PW=VOUT/(VIN*FSW)。
12. according to the method described in claim 9, it is characterized in that, the working frequency includes: frequency probe, ultrasonic signal
Repetition rate, the reception frequency of ultrasonic signal of transmitting；Wherein, the switch of the working frequency and digital switch power supply frequency
Rate FSWIt is not identical.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112346063A (en) * | 2020-11-06 | 2021-02-09 | 飞依诺科技(苏州)有限公司 | Ultrasonic apparatus, control method of ultrasonic apparatus, and storage medium |
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