CN210225227U - Ultrasonic power supply system and ultrasonic equipment - Google Patents
Ultrasonic power supply system and ultrasonic equipment Download PDFInfo
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- CN210225227U CN210225227U CN201920683278.1U CN201920683278U CN210225227U CN 210225227 U CN210225227 U CN 210225227U CN 201920683278 U CN201920683278 U CN 201920683278U CN 210225227 U CN210225227 U CN 210225227U
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Abstract
The utility model provides an supersound electrical power generating system and supersound equipment, include: a processor for determining an operating frequency of the ultrasound device; a power supply controller for determining the switching frequency F of the digital switching power supply according to the working frequencySW(ii) a Digital switching power supply for outputting a switching frequency of FSWThe target voltage of (1). The utility model provides a system can reduce digital switching power supply to ultrasonic equipment operating frequency's interference, improves ultrasonic imaging equipment's formation of image effect.
Description
Technical Field
The utility model relates to a power technical field especially relates to an supersound electrical power generating system and ultrasonic equipment.
Background
With the development of ultrasonic treatment technology, the application range of ultrasonic waves is wider and wider. Ultrasound imaging technology is widely used for clinical diagnosis because of its advantages of real-time, low cost, non-invasive and non-ionizing radiation. In ultrasound imaging applications, the frequency of the signal of interest (the operating frequency of the ultrasound device) may vary from application to application, and setting to setting.
Currently, ultrasound imaging devices typically employ digital switching power supplies to provide electrical power.
However, since the operation of the digital switching power supply generates signals with specific frequencies, when the operating frequency of the digital switching power supply is close to or coincident with the frequency of the signal of interest in the ultrasonic imaging application, the processing difficulty of the ultrasonic signal is increased, and the imaging result is interfered. When a plurality of digital power supply units exist in the ultrasonic imaging system, the frequency interference phenomenon generated by the digital switching power supply is more obvious.
SUMMERY OF THE UTILITY MODEL
The utility model provides an ultrasonic power supply system can reduce the interference of digital switching power supply to ultrasonic equipment operating frequency, improves ultrasonic imaging equipment's formation of image effect.
In a first aspect, an embodiment of the present invention provides an ultrasound power supply system, including: the processor, the power supply controller and the digital switching power supply are electrically connected in sequence; wherein:
a processor for determining an operating frequency of the ultrasound device;
a power supply controller for determining the switching frequency F of the digital switching power supply according to the working frequencySW；
Digital switching power supply for outputting a switching frequency of FSWThe target voltage of (1).
In a possible wayIn the design, still include: a digital pulse width modulator electrically connected to the digital switching power supply, the digital pulse width modulator providing a switching frequency F at the power supply controllerSWAnd then, generating a control signal according to a preset pulse width PW, and sending the control signal to the digital switching power supply.
In one possible design, the digital switching power supply receives the control signal and outputs a target voltage according to the control signal.
In one possible design, the preset pulse width PW is an input voltage V required by the power supply controller according to the system requirementINAn output voltage VOUTAnd a switching frequency FSWObtained, wherein PW is related to the input voltage VINAn output voltage VOUTAnd a switching frequency FSWThe following relationships exist:
PW＝VOUT/(VIN*FSW)。
in one possible design, the operating frequency includes: probe frequency, repetition frequency of ultrasonic signal transmission, and receiving frequency of ultrasonic signals; wherein the working frequency and the switching frequency F of the digital switching power supplySWAre not identical.
In one possible design, the digital switching power supply further comprises an analog-to-digital converter electrically connected with the digital switching power supply and the power supply controller; the analog-to-digital converter is specifically configured to:
sampling a target voltage output by a digital switching power supply in real time to obtain a sampling value of the target voltage;
and sending the sampling value of the target voltage to the power supply controller.
In one possible design, the power controller is further configured to:
determining an error voltage according to the sampling value of the target voltage and a preset reference voltage value;
and finely adjusting the control signal generated by the digital pulse width modulator according to the error voltage so as to enable the target voltage output by the power supply to be matched with a preset reference voltage.
In one possible design, further comprising: an analog-to-digital converter and a compensation filter;
the analog-to-digital converter is electrically connected with the digital switching power supply and is used for sampling a target voltage output by the digital switching power supply in real time to obtain a sampling value of the target voltage and sending the sampling value of the target voltage to the compensation filter;
the compensation filter is electrically connected with the analog-to-digital converter and the power supply controller and is used for determining error voltage according to a sampling value of the target voltage and a preset reference voltage value; and adjusting the gain and the phase of the error voltage to obtain an adjusted error voltage, and sending the adjusted error voltage to the power supply controller.
In one possible design, the power controller is further configured to:
and carrying out fine adjustment on a control signal generated by the digital pulse width modulator according to the sampling value of the target voltage, a preset reference voltage value and the adjusted error voltage so as to enable the target voltage output by the digital switching power supply to be matched with the preset reference voltage.
In a second aspect, an embodiment of the present invention provides an ultrasound apparatus, including the ultrasound power supply system of any one of the first aspects.
In a third aspect, an embodiment of the present invention provides a control method for an ultrasound power supply system, which is applied to the ultrasound power supply system of any one of the first aspect, the method includes:
determining the working frequency of the ultrasonic equipment;
determining the switching frequency F of the digital switching power supply according to the working frequencySW；
Output switching frequency of FSWThe target voltage of (1).
In one possible design, the output switching frequency is FSWThe target voltage of (1), comprising:
at said switching frequency FSWNext, generating a control signal according to a preset pulse width PW; outputting a target voltage according to the control signal; wherein:
the preset pulse width PW is the input voltage V required by the systemINAn output voltage VOUTAnd a switching frequency FSWCalculated, the calculation formula is as follows:
PW＝VOUT/(VIN*FSW)。
in one possible design, the operating frequency includes: probe frequency, repetition frequency of ultrasonic signal transmission, and receiving frequency of ultrasonic signals; wherein the working frequency and the switching frequency F of the digital switching power supplySWAre not identical.
In one possible design, further comprising:
sampling a target voltage output by a digital switching power supply in real time to obtain a sampling value of the target voltage;
and sending the sampling value of the target voltage to the power supply controller.
In one possible design, further comprising:
determining an error voltage according to the sampling value of the target voltage and a preset reference voltage value;
and finely adjusting the control signal generated by the digital pulse width modulator according to the error voltage so as to enable the target voltage output by the power supply to be matched with a preset reference voltage.
In one possible design, further comprising:
sampling a target voltage output by a digital switching power supply in real time to obtain a sampling value of the target voltage, and sending the sampling value of the target voltage to the compensation filter;
determining an error voltage according to the sampling value of the target voltage and a preset reference voltage value; and adjusting the gain and the phase of the error voltage to obtain an adjusted error voltage, and sending the adjusted error voltage to the power supply controller.
In one possible design, further comprising:
and carrying out fine adjustment on a control signal generated by the digital pulse width modulator according to the sampling value of the target voltage, a preset reference voltage value and the adjusted error voltage so as to enable the target voltage output by the digital switching power supply to be matched with the preset reference voltage.
In a fourth aspect, an embodiment of the present invention provides an ultrasonic power control system, including: a memory for storing a program; a processor for executing the program stored in the memory, and when the program is executed, for executing the control method of the ultrasound power supply system according to any one of the second aspect.
In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, including: a computer program which, when run on a computer, causes the computer to execute the control method of the ultrasound power supply system described in any one of the second aspects.
In a sixth aspect, an embodiment of the present invention provides a program product, including: a computer program stored in a readable storage medium, from which at least one processor of a server can read the computer program, the at least one processor executing the computer program causing the server to execute the control method of the ultrasound power supply system according to any one of the second aspects.
The utility model provides an ultrasonic power supply system and ultrasonic equipment, which determines the working frequency of the ultrasonic equipment; determining the switching frequency F of the digital switching power supply according to the working frequencySW(ii) a And outputting the target voltage. Therefore, the interference of the digital switching power supply to the working frequency of the ultrasonic equipment can be reduced, and the imaging effect of the ultrasonic imaging equipment is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic diagram of an application scenario of the present invention;
fig. 2 is a flowchart of a control method of an ultrasonic power supply system according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of an ultrasonic power supply system according to an embodiment of the present invention;
fig. 4 is a flowchart of a control method of an ultrasonic power supply system according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of an ultrasonic power supply system according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an ultrasonic power supply system provided in the fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of an ultrasound power supply system according to a sixth embodiment of the present invention;
fig. 8 is a schematic structural diagram of an ultrasonic power supply control system according to a seventh embodiment of the present invention.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 1 is a schematic diagram of an application scenario of the present invention, as shown in fig. 1, in an ultrasound imaging application, frequencies of signals of interest are various and change along with differences of detection positions and detection settings. The frequencies of these signals of interest include: the operating frequency of the probe, the repetition frequency of the ultrasonic signal transmission, and the like. Because the operation of the digital switching power supply can generate signals with specific frequency, when the operating frequency of the digital switching power supply is close to or coincident with the frequency of the signals of interest in the ultrasonic imaging application, the processing difficulty of the ultrasonic signals can be increased, and the imaging result is interfered. Therefore, the utility model discloses according to the operating frequency of ultrasonic equipment, i.e. the operating frequency 11 of the probe in the picture, the repetition frequency 12 of ultrasonic signal transmission, the receiving frequency 13 of ultrasonic signal, ultrasonic power supply system 14 confirms digital switching power supply's switching frequency FSWThen outputs a switching frequency of FSWThe target voltage 15. The frequency of the target voltage 15 is different from the working frequency 11 of the probe, the repetition frequency 12 of ultrasonic signal emission and the repetition frequency 13 of ultrasonic signal emission, so that the interference of the digital switching power supply to the working frequency of the ultrasonic imaging equipment can be reduced, and the imaging effect of the ultrasonic imaging equipment is improved.
In the embodiment, the working frequency of the ultrasonic equipment is determined; determining the switching frequency F of the digital switching power supply according to the working frequencySW(ii) a At a switching frequency FSWNext, generating a control signal according to a preset pulse width PW; and outputting the target voltage according to the control signal. Therefore, the interference of the digital switching power supply to the working frequency of the ultrasonic equipment can be reduced, and the imaging effect of the ultrasonic imaging equipment is improved.
The following describes the technical solution of the present invention and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 2 is a flowchart of a control method of an ultrasound power supply system according to an embodiment of the present invention, and as shown in fig. 2, the method in this embodiment may include:
s101, determining the working frequency of the ultrasonic equipment.
In this embodiment, the operating frequency of the ultrasound apparatus is varied and varies with different detection locations and detection settings. The operating frequencies of these ultrasonic devices include: the working frequency of the probe, the repetition frequency of the ultrasonic signal emission and the repetition frequency of the ultrasonic signal emission. The processor determines the working frequency of the ultrasonic equipment according to the application and the setting of a user so as to finally determine the switching frequency F of the digital switching power supplySWSo that the working frequency is equal to the switching frequency F of the digital switching power supplySWAre not identical.
It should be noted that the present embodiment does not limit the kind of the operating frequency of the ultrasonic apparatus, and those skilled in the art may increase or decrease the kind of the operating frequency of the ultrasonic apparatus according to actual situations. Meanwhile, the embodiment also does not limit the obtaining mode of the working frequency of the ultrasonic equipment, and a person skilled in the art can reasonably select the obtaining mode of the working frequency of the ultrasonic equipment according to actual conditions. The operating frequency is obtained, for example, from the product specification of the ultrasound device or probe, or by a third party detection instrument.
S102, determining the switching frequency F of the digital switching power supply according to the working frequencySW。
In this embodiment, the processor sends the operating frequency to the power supply controller, and the power supply controller determines the switching frequency F of the digital switching power supply according to the operating frequencySW. Wherein, the switching frequency F of the digital switching power supplySWDifferent from any one of the operating frequencies.
In one possible design, the preset pulse width PW is the input voltage V required by the system by the power supply controllerINAn output voltage VOUTAnd a switching frequency FSWCalculated, the calculation formula is as follows:
PW＝VOUT/(VIN*FSW)。
s103, outputting a switching frequency of FSWThe target voltage of (1).
In this embodiment, the digital pulse width modulator is based on the switching frequency F provided by the power supply controllerSWGenerating a control signal by a preset pulse width PW; so that the digital switching power supply outputs a target voltage according to the control signal.
In this embodiment, the digital power switch outputs the switching frequency F according to the control signal generated by the digital pulse width modulatorSWThe target power supply of (3) provides electrical energy to the ultrasound device.
In the embodiment, the working frequency of the ultrasonic equipment is determined; determining the switching frequency F of the digital switching power supply according to the working frequencySW(ii) a At a switching frequency FSWNext, generating a control signal according to a preset pulse width PW; and outputting the target voltage according to the control signal. Therefore, the interference of the digital switching power supply to the working frequency of the ultrasonic equipment can be reduced, and the imaging effect of the ultrasonic imaging equipment is improved.
Fig. 3 is a flowchart of a control method of an ultrasound power supply system according to a second embodiment of the present invention, and as shown in fig. 3, the method in this embodiment may include:
s201, determining the working frequency of the ultrasonic equipment.
S202, determining the switching frequency F of the digital switching power supply according to the working frequencySW。
S203, outputting the switching frequency of FSWThe target voltage of (1).
In this embodiment, please refer to the relevant description in step S101 to step S103 in the method shown in fig. 2 for the specific implementation process and technical principle of step S201 to step S203, which is not described herein again.
And S204, sampling the target voltage output by the digital switching power supply in real time to obtain a sampling value of the target voltage.
In this embodiment, the target voltage output by the digital switching power supply is sampled in real time through the analog-to-digital converter to obtain a sampling value of the target voltage, and the sampling value is sent to the power supply controller.
And S205, determining an error voltage according to the sampling value of the target voltage and a preset reference voltage value.
In this embodiment, the power controller determines the error voltage according to a sampling value of the target voltage and a preset reference voltage value.
And S206, fine-tuning the control signal generated by the digital pulse width modulator according to the error voltage so as to enable the target voltage output by the power supply to be matched with a preset reference voltage.
In this embodiment, the power supply controller performs fine adjustment on the control signal generated by the digital pulse width modulator according to the error voltage, so that the target voltage output by the power supply is matched with a preset reference voltage, thereby implementing closed-loop control and improving the precision of the output target voltage.
In the embodiment, the working frequency of the ultrasonic equipment is determined; determining the switching frequency F of the digital switching power supply according to the working frequencySW(ii) a At a switching frequency FSWNext, generating a control signal according to a preset pulse width PW; and outputting the target voltage according to the control signal. Therefore, the interference of the digital switching power supply to the working frequency of the ultrasonic equipment can be reduced, and the imaging effect of the ultrasonic imaging equipment is improved.
In addition, the implementation samples the target voltage output by the digital switching power supply in real time to obtain a sampling value of the target voltage; determining an error voltage according to a sampling value of the target voltage and a preset reference voltage value; and finely adjusting the control signal generated by the digital pulse width modulator according to the error voltage so as to enable the target voltage output by the power supply to be matched with the preset reference voltage. Therefore, closed-loop control of the target voltage output by the digital switching power supply is realized, and the precision of the target voltage output by the digital switching power supply is improved.
Fig. 4 is a flowchart of a control method of an ultrasound power supply system provided by the third embodiment of the present invention, and as shown in fig. 4, the method in this embodiment may include:
s301, determining the working frequency of the ultrasonic equipment.
S302, determining the switching frequency F of the digital switching power supply according to the working frequencySW。
S303, outputting the switching frequency of FSWThe target voltage of (1).
In this embodiment, please refer to the relevant description in step S101 to step S103 in the method shown in fig. 2 for the specific implementation process and technical principle of step S301 to step S303, which is not described herein again.
S304, sampling the target voltage output by the digital switching power supply in real time to obtain a sampling value of the target voltage.
In this embodiment, the target voltage output by the digital switching power supply is sampled in real time by the analog-to-digital converter to obtain a sampling value of the target voltage, and the sampling value of the target voltage is sent to the compensation filter.
S305, determining an error voltage according to a sampling value of the target voltage and a preset reference voltage value; and adjusting the gain and the phase of the error voltage to obtain the adjusted error voltage.
In the embodiment, the error voltage is determined by the compensation filter according to the sampling value of the target voltage and the preset reference voltage value; and adjusting the gain and the phase of the error voltage to obtain the adjusted error voltage, and sending the adjusted error voltage to the power supply controller.
S306, fine tuning the control signal generated by the digital pulse width modulator according to the sampling value of the target voltage, the preset reference voltage value and the adjusted error voltage so as to enable the target voltage output by the digital switching power supply to be matched with the preset reference voltage.
In this embodiment, the power supply controller performs fine adjustment on the control signal generated by the digital pulse width modulator according to the sampling value of the target voltage, the preset reference voltage value, and the adjusted error voltage, so that the target voltage output by the digital switching power supply matches the preset reference voltage. Therefore, closed-loop control is realized, and the precision of the output target voltage is improved.
In the embodiment, the working frequency of the ultrasonic equipment is determined; determining the switching frequency F of the digital switching power supply according to the working frequencySW(ii) a At a switching frequency FSWNext, generating a control signal according to a preset pulse width PW; and outputting the target voltage according to the control signal. Therefore, the interference of the digital switching power supply to the working frequency of the ultrasonic equipment can be reduced, and the imaging effect of the ultrasonic imaging equipment is improved.
In addition, the implementation samples the target voltage output by the digital switching power supply in real time to obtain a sampling value of the target voltage; determining an error voltage according to a sampling value of the target voltage and a preset reference voltage value; adjusting the gain and the phase of the error voltage to obtain the adjusted error voltage; and carrying out fine adjustment on a control signal generated by the digital pulse width modulator according to the sampling value of the target voltage, the preset reference voltage value and the adjusted error voltage so as to enable the target voltage output by the digital switching power supply to be matched with the preset reference voltage. Therefore, closed-loop control of the target voltage output by the digital switching power supply is realized, and the precision of the target voltage output by the digital switching power supply is improved.
Fig. 5 is a schematic structural diagram of an ultrasound power supply system provided by the fourth embodiment of the present invention, as shown in fig. 5, the ultrasound power supply system in this embodiment may include:
a processor 31 for determining an operating frequency of the ultrasound device;
a power supply controller 32 for determining the number according to the working frequencySwitching frequency F of a switching power supplySW；
A digital switching power supply 33 for outputting a switching frequency of FSWThe target voltage of (1).
Optionally, the method may further include: digital pulse width modulator 34 for switching frequency F provided at the power supply controllerSWNext, generating a control signal according to a preset pulse width PW; so that the digital switching power supply 34 outputs a target voltage according to the control signal.
It should be noted that the processor 31, the power supply controller 32, and the digital pulse width modulator 34 in this embodiment may be independent structures, or may be integrated structures integrated together. When the processor 31, the power controller 32, and the digital pulse width modulator 34 are independent structures, the processor 31, the power controller 32, and the digital pulse width modulator 34 may be connected by a bus coupling.
In one possible design, the preset pulse width PW is the input voltage V required by the system by the power supply controllerINAn output voltage VOUTAnd a switching frequency FSWCalculated, the calculation formula is as follows:
PW＝VOUT/(VIN*FSW)。
in one possible design, the operating frequencies include: probe frequency, repetition frequency of ultrasonic signal transmission, and receiving frequency of ultrasonic signals; wherein, the working frequency is equal to the switching frequency F of the digital switching power supplySWAre not identical.
In the embodiment, the working frequency of the ultrasonic equipment is determined; determining the switching frequency F of the digital switching power supply according to the working frequencySW(ii) a At a switching frequency FSWNext, generating a control signal according to a preset pulse width PW; and outputting the target voltage according to the control signal. Therefore, the interference of the digital switching power supply to the working frequency of the ultrasonic equipment can be reduced, and the imaging effect of the ultrasonic imaging equipment is improved.
The ultrasonic power supply system of this embodiment may execute the technical solution in the method shown in fig. 2, and the specific implementation process and technical principle of the ultrasonic power supply system refer to the related description in the method shown in fig. 2, which is not described herein again.
Fig. 6 is a schematic structural diagram of an ultrasound power supply system provided by the fifth embodiment of the present invention, as shown in fig. 6, the ultrasound power supply system of this embodiment may further include, on the basis of the apparatus shown in fig. 5:
an analog-to-digital converter 35; the analog-to-digital converter 35 is specifically configured to:
sampling a target voltage output by a digital switching power supply in real time to obtain a sampling value of the target voltage;
and sending the sampling value of the target voltage to the power supply controller.
In one possible design, the power controller 32 is further configured to:
determining an error voltage according to a sampling value of the target voltage and a preset reference voltage value;
and finely adjusting the control signal generated by the digital pulse width modulator according to the error voltage so as to enable the target voltage output by the power supply to be matched with the preset reference voltage.
In the embodiment, the working frequency of the ultrasonic equipment is determined; determining the switching frequency F of the digital switching power supply according to the working frequencySW(ii) a At a switching frequency FSWNext, generating a control signal according to a preset pulse width PW; and outputting the target voltage according to the control signal. Therefore, the interference of the digital switching power supply to the working frequency of the ultrasonic equipment can be reduced, and the imaging effect of the ultrasonic imaging equipment is improved.
In addition, the implementation samples the target voltage output by the digital switching power supply in real time to obtain a sampling value of the target voltage; determining an error voltage according to a sampling value of the target voltage and a preset reference voltage value; and finely adjusting the control signal generated by the digital pulse width modulator according to the error voltage so as to enable the target voltage output by the power supply to be matched with the preset reference voltage. Therefore, closed-loop control of the target voltage output by the digital switching power supply is realized, and the precision of the target voltage output by the digital switching power supply is improved.
The ultrasonic power supply system of this embodiment may execute the technical solutions in the methods shown in fig. 2 and fig. 3, and the specific implementation process and technical principle of the ultrasonic power supply system refer to the related descriptions in the methods shown in fig. 2 and fig. 3, which are not described herein again.
Fig. 7 is a schematic structural diagram of an ultrasound power supply system provided by the sixth embodiment of the present invention, as shown in fig. 7, the ultrasound power supply system of this embodiment may further include, on the basis of the apparatus shown in fig. 5:
the analog-to-digital converter 35 is configured to sample a target voltage output by the digital switching power supply in real time to obtain a sampling value of the target voltage, and send the sampling value of the target voltage to the compensation filter;
a compensation filter 36 for determining an error voltage according to a sampling value of the target voltage and a preset reference voltage value; and adjusting the gain and the phase of the error voltage to obtain the adjusted error voltage, and sending the adjusted error voltage to the power supply controller.
In one possible design, the power controller 32 is further configured to:
and carrying out fine adjustment on a control signal generated by the digital pulse width modulator according to the sampling value of the target voltage, the preset reference voltage value and the adjusted error voltage so as to enable the target voltage output by the digital switching power supply to be matched with the preset reference voltage.
In the embodiment, the working frequency of the ultrasonic equipment is determined; determining the switching frequency F of the digital switching power supply according to the working frequencySW(ii) a At a switching frequency FSWNext, generating a control signal according to a preset pulse width PW; and outputting the target voltage according to the control signal. Therefore, the interference of the digital switching power supply to the working frequency of the ultrasonic equipment can be reduced, and the imaging effect of the ultrasonic imaging equipment is improved.
In addition, the implementation samples the target voltage output by the digital switching power supply in real time to obtain a sampling value of the target voltage; determining an error voltage according to a sampling value of the target voltage and a preset reference voltage value; adjusting the gain and the phase of the error voltage to obtain the adjusted error voltage; and carrying out fine adjustment on a control signal generated by the digital pulse width modulator according to the sampling value of the target voltage, the preset reference voltage value and the adjusted error voltage so as to enable the target voltage output by the digital switching power supply to be matched with the preset reference voltage. Therefore, closed-loop control of the target voltage output by the digital switching power supply is realized, and the precision of the target voltage output by the digital switching power supply is improved.
The ultrasonic power supply system of this embodiment may execute the technical solutions in the methods shown in fig. 2 and fig. 4, and the specific implementation process and technical principle of the ultrasonic power supply system refer to the related descriptions in the methods shown in fig. 2 and fig. 4, which are not described herein again.
Fig. 8 is a schematic structural diagram of an ultrasonic power supply control system according to a seventh embodiment of the present invention, and as shown in fig. 8, the ultrasonic power supply control system 40 in this embodiment may include:
a memory 41 for storing a program; the Memory 41 may include a volatile Memory (RAM), such as a Random Access Memory (SRAM), a Double Data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM), and the like; the memory may also comprise a non-volatile memory, such as a flash memory. The memory 41 is used to store computer programs (e.g., applications, functional modules, etc. that implement the above-described methods), computer instructions, etc., which may be stored in one or more of the memories 41 in a partitioned manner. And the computer programs, computer instructions, data, etc. described above may be invoked by the processor 42.
A processor 42 for executing the computer program stored in the memory 41 to implement the steps of the method according to the above embodiments.
Reference may be made in particular to the description relating to the preceding method embodiment.
The processor 41 and the memory 42 may be separate structures or may be integrated structures integrated together. When the processor 41 and the memory 42 are separate structures, the memory 42 and the processor 41 may be coupled by a bus 43.
The server in this embodiment may execute the technical solutions in the methods shown in fig. 2, fig. 3, and fig. 4, and the specific implementation process and technical principle of the technical solutions refer to the related descriptions in the methods shown in fig. 2, fig. 3, and fig. 4, which are not described herein again.
An embodiment of the present application further provides a program product, where the program product includes: a computer program stored in a readable storage medium, from which the computer program can be read by at least one processor of the server, the at least one processor executing the computer program causing the server to execute the control method of the ultrasound power supply system described above.
In addition, embodiments of the present application further provide a computer-readable storage medium, in which computer-executable instructions are stored, and when at least one processor of the user equipment executes the computer-executable instructions, the user equipment performs the above-mentioned various possible methods.
Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in user equipment. Of course, the processor and the storage medium may reside as discrete components in a communication device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An ultrasound power supply system, comprising: the processor, the power supply controller and the digital switching power supply are electrically connected in sequence; wherein:
a processor for determining an operating frequency of the ultrasound device;
a power supply controller for determining the switching frequency F of the digital switching power supply according to the working frequencySW；
Digital switching power supply for outputting a switching frequency of FSWThe target voltage of (1).
2. The system of claim 1, further comprising a digital pulse width modulator electrically connected to the digital switching power supply, the digital pulse width modulator providing a switching frequency F at the power supply controllerSWAnd then, generating a control signal according to a preset pulse width PW, and sending the control signal to the digital switching power supply.
3. The system of claim 2, wherein the digital switching power supply receives the control signal and outputs a target voltage based on the control signal.
4. The system according to claim 2, wherein the preset pulse width PW is an input voltage V required by the power supply controller according to the systemINAn output voltage VOUTAnd a switching frequency FSWObtained, wherein PW is related to the input voltage VINAn output voltage VOUTAnd a switching frequency FSWThe following relationships exist:
PW＝VOUT/(VIN*FSW)。
5. the system of claim 1, wherein the operating frequency comprises: probe frequency, repetition frequency of ultrasonic signal transmission, and receiving frequency of ultrasonic signals; wherein the working frequency and the switching frequency F of the digital switching power supplySWAre not identical.
6. The system of any one of claims 1-5, further comprising an analog-to-digital converter electrically connected to the digital switching power supply and the power supply controller; the analog-to-digital converter is specifically configured to:
sampling a target voltage output by a digital switching power supply in real time to obtain a sampling value of the target voltage;
and sending the sampling value of the target voltage to the power supply controller.
7. The system of claim 6, wherein the power controller is further configured to:
determining an error voltage according to the sampling value of the target voltage and a preset reference voltage value;
and finely adjusting the control signal generated by the digital pulse width modulator according to the error voltage so as to enable the target voltage output by the power supply to be matched with a preset reference voltage.
8. The system of any one of claims 1-5, further comprising: an analog-to-digital converter and a compensation filter;
the analog-to-digital converter is electrically connected with the digital switching power supply and is used for sampling a target voltage output by the digital switching power supply in real time to obtain a sampling value of the target voltage and sending the sampling value of the target voltage to the compensation filter;
the compensation filter is electrically connected with the analog-to-digital converter and the power supply controller and is used for determining error voltage according to a sampling value of the target voltage and a preset reference voltage value; and adjusting the gain and the phase of the error voltage to obtain an adjusted error voltage, and sending the adjusted error voltage to the power supply controller.
9. The system of claim 8, wherein the power controller is further configured to:
and carrying out fine adjustment on a control signal generated by the digital pulse width modulator according to the sampling value of the target voltage, a preset reference voltage value and the adjusted error voltage so as to enable the target voltage output by the digital switching power supply to be matched with the preset reference voltage.
10. An ultrasound device, characterized by comprising an ultrasound power supply system according to any one of claims 1-9.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061610A (en) * | 2019-05-14 | 2019-07-26 | 无锡海斯凯尔医学技术有限公司 | Ultrasonic-frequency power supply system and its control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110061610A (en) * | 2019-05-14 | 2019-07-26 | 无锡海斯凯尔医学技术有限公司 | Ultrasonic-frequency power supply system and its control method |
| CN110061610B (en) * | 2019-05-14 | 2024-04-12 | 无锡海斯凯尔医学技术有限公司 | Ultrasonic power supply system and control method thereof |
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