CN115253085B - Power consumption control device for shortwave therapy and shortwave therapy device - Google Patents
Power consumption control device for shortwave therapy and shortwave therapy deviceInfo
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- CN115253085B CN115253085B CN202210645877.0A CN202210645877A CN115253085B CN 115253085 B CN115253085 B CN 115253085B CN 202210645877 A CN202210645877 A CN 202210645877A CN 115253085 B CN115253085 B CN 115253085B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/02—Radiation therapy using microwaves
- A61N5/022—Apparatus adapted for a specific treatment
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
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- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Power Engineering (AREA)
- Biomedical Technology (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a power consumption control device of a shortwave therapeutic apparatus and the shortwave therapeutic apparatus, which are applied to the field of power amplification and comprise a filtering module and an adjusting module; the first end of the filtering module is connected with a power supply, and the second end of the filtering module is connected with the first end of the power amplifier; the adjusting module is used for adjusting the sine wave signal output by the power amplifier to a square wave signal and feeding the square wave signal back to the control end of the power amplifier. The rising edge time of the square wave signal is shorter, so that the time of the power amplifier in the cut-off state can be reduced, the cut-off time of the power amplifier is shortened, the energy consumed by the power amplifier in the cut-off process is reduced, and the working efficiency of the power amplifier is improved.
Description
Technical Field
The invention relates to the field of power amplification, in particular to a power consumption control device of a shortwave therapeutic apparatus and the shortwave therapeutic apparatus.
Background
In the prior art, a power amplifier is adopted to amplify a sinusoidal signal output by a signal source and then output the amplified sinusoidal signal to a load, an inductor is arranged between a power supply and the power amplifier, and the power amplifier cannot generate larger power loss in the conduction process due to incapability of abrupt change of current of the inductor. However, the power amplifier is in an off state in the process of being turned off, so that larger power loss is generated, the power output from the power amplifier to the load is lower, and the working efficiency of the power amplifier is lower.
Disclosure of Invention
The invention aims to provide a power consumption control device of a shortwave therapeutic apparatus and the shortwave therapeutic apparatus, which can reduce the energy consumed by a power amplifier in the turn-off process and improve the working efficiency of the power amplifier by the turn-off time of the power amplifier.
In order to solve the technical problems, the invention provides a power consumption control device of a shortwave therapeutic apparatus, which comprises a filtering module and an adjusting module;
The first end of the filtering module is connected with a power supply, and the second end of the filtering module is connected with the first end of the power amplifier;
The first end of the power amplifier is connected with the first end of the load, the second end of the load is grounded, the second end of the power amplifier is grounded, and the control end of the power amplifier is connected with the positive output end of the signal source and is used for connecting the first end and the second end of the operational amplifier according to the signal output by the signal source;
the first end of the adjusting module is connected with the first end of the power amplifier, and the second end of the adjusting module is connected with the control end of the power amplifier and is used for adjusting the sine wave signal output by the power amplifier to a square wave signal and feeding the square wave signal back to the control end of the power amplifier.
Preferably, the power amplifier further comprises a direct current bias module, wherein a first end of the direct current bias module is connected with an output negative end of the signal source, and a second end of the direct current bias module is connected with a control end of the power amplifier;
the direct current bias module is used for assisting the power amplifier to oscillate.
Preferably, the dc bias module includes a first resistor, a first inductor, a first capacitor, a first diode, and a fifth resistor;
The first end of the first resistor is connected with the output positive end of the power supply, the second end of the first resistor is connected with the first end of the first capacitor and the first end of the first inductor respectively, the second end of the first inductor is connected with the first end of the fifth resistor and the control end of the power amplifier respectively, the second end of the fifth resistor is connected with the anode of the first diode, and the cathode of the first diode is connected with the second end of the first capacitor, the output negative end of the power supply and the output negative end of the signal source respectively and then grounded.
Preferably, the power amplifier further comprises an input impedance matching module, wherein a first end of the input impedance matching module is connected with an output positive end of the signal source, a second end of the input impedance matching module is connected with a control end of the power amplifier, and the input impedance matching module is used for impedance matching of the signal source and the power amplifier.
Preferably, the input impedance matching module includes a second capacitor, a sixth capacitor and a fourth inductor;
The first end of the sixth capacitor is connected with the positive output end of the signal source, the second end of the sixth capacitor is connected with the first end of the fourth inductor and the first end of the second capacitor respectively, the second end of the fourth inductor is grounded, and the second end of the second capacitor is connected with the control end of the power amplifier.
Preferably, the power amplifier further comprises an output impedance matching module, wherein a first end of the output impedance matching module is connected with a first end of the power amplifier, a second end of the output impedance matching module is connected with a first end of the load, and the output impedance matching module is used for matching the power amplifier with the load impedance.
Preferably, the output impedance matching module includes a fourth capacitor, a fifth capacitor and a third inductor;
the first end of the fourth capacitor is connected with the first end of the power amplifier, the second end of the fourth capacitor is connected with the first end of the third inductor, the second end of the third inductor is connected with the first end of the fifth capacitor, and the second end of the fifth capacitor is grounded.
Preferably, the filtering module comprises a third capacitor and a second inductor;
the first end of the third capacitor is connected with the first end of the second inductor, the connected common end of the third capacitor is connected with the power supply, the second end of the third capacitor is grounded, and the second end of the second inductor is connected with the first end of the power amplifier.
Preferably, the adjusting module includes a seventh capacitor, an eighth capacitor, a ninth capacitor and a fifth inductor;
The first end of the seventh capacitor is connected with the first end of the fifth inductor, the connected common end is connected with the first end of the power amplifier, the second end of the seventh capacitor is grounded, the second end of the fifth capacitor is connected with the first end of the ninth capacitor, the second end of the ninth capacitor is connected with the first end of the eighth capacitor, the connected common end is connected with the control end of the power amplifier, and the second end of the eighth capacitor is grounded;
The fifth inductor and the ninth capacitor are used for adjusting sine waves output by the power amplifier into square waves and outputting the square waves to the control end of the power amplifier, the seventh capacitor is used for impedance matching of signals output by the power amplifier and the fifth inductor and the ninth capacitor, and the eighth capacitor is used for impedance matching of signals output by the fifth inductor and the ninth capacitor and the power amplifier.
In order to solve the technical problems, the invention also provides a shortwave therapeutic apparatus, which comprises the power consumption control device of the shortwave therapeutic apparatus, a signal source and a power amplifier, wherein the signal source is connected with the control end of the power amplifier, and the power consumption control device of the shortwave therapeutic apparatus is connected with the control end and the first end of the power amplifier.
The application provides a power consumption control device of a shortwave therapeutic apparatus and the shortwave therapeutic apparatus, which are applied to the field of power amplification and comprise a filtering module and an adjusting module; the first end of the filtering module is connected with a power supply, and the second end of the filtering module is connected with the first end of the power amplifier; the adjusting module is used for adjusting the sine wave signal output by the power amplifier to a square wave signal and feeding the square wave signal back to the control end of the power amplifier. The rising edge time of the square wave signal is shorter, so that the time of the power amplifier in the cut-off state can be reduced, the cut-off time of the power amplifier is shortened, the energy consumed by the power amplifier in the cut-off process is reduced, and the working efficiency of the power amplifier is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a power consumption control device of a shortwave therapeutic apparatus according to the present application;
FIG. 2a is a graph of current and voltage at a first end of a power amplifier according to the present application;
FIG. 2b is a waveform diagram of a signal source according to the present application;
fig. 3 is a schematic structural diagram of another power consumption control device of a shortwave therapeutic apparatus according to the present application.
Detailed Description
The invention provides a power consumption control device of a shortwave therapeutic apparatus and the shortwave therapeutic apparatus, which can reduce the energy consumed by a power amplifier in the turn-off process and improve the working efficiency of the power amplifier by the turn-off time of the power amplifier.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic structural diagram of a power consumption control device of a shortwave therapeutic apparatus provided by the invention, which comprises a filtering module 1 and an adjusting module 2;
The first end of the filtering module 1 is connected with a power supply, and the second end of the filtering module 1 is connected with the first end of the power amplifier Q1;
The first end of the power amplifier Q1 is connected with the first end of the load R3, the second end of the load R3 is grounded, the second end of the power amplifier Q1 is grounded, the control end of the power amplifier Q1 is connected with the positive output end of the signal source V2, and the first end of the operational amplifier is connected with the second end according to the signal output by the signal source V2;
The first end of the adjusting module 2 is connected with the first end of the power amplifier Q1, and the second end of the adjusting module 2 is connected with the control end of the power amplifier Q1, and is used for adjusting the sine wave signal output by the power amplifier Q1 to a square wave signal and feeding the square wave signal back to the control end of the power amplifier Q1.
Considering that in the shortwave therapeutic apparatus in the prior art, the power amplifier Q1 is adopted to amplify the sinusoidal signal output by the signal source V2 and then output the amplified sinusoidal signal to the load R3, an inductor is arranged between the power source and the power amplifier Q1, and the power amplifier Q1 cannot generate larger power loss in the conduction process due to the fact that the current of the inductor cannot be suddenly changed. However, the power amplifier Q1 is in an off state during the off process, which generates a larger power loss, resulting in a lower power output from the power amplifier Q1 to the load R3, and a lower working efficiency of the power amplifier Q1.
The application provides a power consumption control device of a shortwave therapeutic apparatus, which comprises a filtering module 1 and an adjusting module 2, wherein the filtering module 1 is arranged between a power supply V3 and a first end of a power amplifier Q1 and is used for filtering current output by the power supply V3, the filtering module 1 comprises an inductor, the adjusting module 2 is arranged between the first end and a control end of the power amplifier Q1, and the adjusting module 2 is used for adjusting sine wave signals output by the power amplifier Q1 into square wave signals and feeding the square wave signals back to the control end of the power amplifier Q1. Since the rising edge time of the square wave is short, the turn-off time of the power amplifier Q1 can be reduced when the power amplifier Q1 is turned off.
Specifically, fig. 2a is a graph of current and voltage at a first end of the power amplifier provided by the application, fig. 2b is a waveform diagram of a signal source provided by the application, when the power amplifier Q1 is turned on, the point Q1 is moved to the point Q2, because the filtering module 1 comprises an inductance device, the current will not be suddenly changed when the power amplifier Q1 is turned on, and when the power amplifier Q1 is turned on, the power amplifier Q1 is in a low-voltage and high-current state, and the loss is small. After the on time reaches pi time, the current reaches peak current from the point Q2 to the point Q3, and the voltage is still lower. During the on-time from pi to 2pi, the power amplifier Q1 passes through the maximum power consumption point Q0 at this time. It is necessary to shorten the time of the power amplifier Q1 in the off process, i.e., the process of Q2 to Q3, in order to achieve a reduction in power consumption of the power amplifier Q1 in the course of operation.
The rising edge time of the sine wave is longer, the sine wave is converted into the square wave, and the rising edge time of the square wave is shorter, so that the time of the power amplifier Q1 in a state with larger power consumption can be reduced in the turn-off process, the power consumption can be reduced, and the working efficiency is improved.
The application provides a power consumption control device of a shortwave therapeutic apparatus, which is applied to the field of power amplification and comprises a filtering module 1 and an adjusting module 2, wherein a first end of the filtering module 1 is connected with a power supply, a second end of the filtering module 1 is connected with a first end of a power amplifier Q1, and the adjusting module 2 is used for adjusting a sine wave signal output by the power amplifier Q1 to a square wave signal and feeding the square wave signal back to a control end of the power amplifier Q1. The rising edge time of the square wave signal is shorter, so that the time of the power amplifier Q1 in the cut-off state can be reduced, the cut-off time of the power amplifier Q1 is shortened, the energy consumed by the power amplifier Q1 in the cut-off process is reduced, and the working efficiency of the power amplifier Q1 is improved.
Based on the above embodiments:
As a preferred embodiment, the power amplifier further comprises a direct current bias module 3, wherein a first end of the direct current bias module 3 is connected with the output negative end of the signal source V2, and a second end of the direct current bias module 3 is connected with the control end of the power amplifier Q1;
the dc bias module 3 is used to assist the oscillation of the power amplifier Q1.
Considering that the power amplifier Q1 is not easy to vibrate, the application is provided with the direct current bias module 3, and the direct current bias module 3 is connected with the control end of the power amplifier Q1 to provide a bias signal so as to assist the vibration of the power amplifier Q1.
By providing the dc bias module 3, the power amplifier Q1 can reduce a part of conduction loss during operation.
As a preferred embodiment, the dc bias module 3 includes a first resistor R1, a first inductor L1, a first capacitor C1, a first diode D1, and a fifth resistor R5;
The first end of the first resistor R1 is connected with the output positive end of the power supply V1, the second end of the first resistor R1 is respectively connected with the first end of the first capacitor C1 and the first end of the first inductor L1, the second end of the first inductor L1 is respectively connected with the first end of the fifth resistor R5 and the control end of the power amplifier Q1, the second end of the fifth resistor R5 is connected with the anode of the first diode D1, and the cathode of the first diode D1 is respectively connected with the second end of the first capacitor C1, the output negative end of the power supply V1 and the output negative end of the signal source V2 and then grounded.
Specifically, the parameters of the devices of the dc bias module 3 are determined by the parameters of the power amplifier Q1, and the present application is not limited herein.
It should be noted that the specific connection relation of the dc offset module 3 includes, but is not limited to, the above manner, and the present application is not limited thereto.
As a preferred embodiment, the power amplifier further comprises an input impedance matching module 4, a first end of the input impedance matching module 4 is connected with the output positive end of the signal source V2, a second end of the input impedance matching module 4 is connected with the control end of the power amplifier Q1, and the input impedance matching module 4 is used for impedance matching the signal source V2 with the power amplifier Q1.
Considering that the impedance of the output of the signal source V2 may be different from the impedance of the power amplifier Q1, the maximum power output may be reached by the transmitted power when the impedance of the output of the signal source V2 matches the impedance of the power amplifier Q1. An input impedance matching module 4 is arranged between the signal source V2 and the power amplifier Q1 for matching the impedance of the signal source V2 and the power amplifier Q1.
As a preferred embodiment, the input impedance matching module 4 includes a second capacitor C2, a sixth capacitor C6 and a fourth inductor L4;
The first end of the sixth capacitor C6 is connected with the positive output end of the signal source V2, the second end of the sixth capacitor C6 is connected with the first end of the fourth inductor L4 and the first end of the second capacitor C2 respectively, the second end of the fourth inductor L4 is grounded, and the second end of the second capacitor C2 is connected with the control end of the power amplifier Q1.
Specifically, the specific parameters of the input impedance matching module 4 are determined by the power amplifier Q1 and the signal source V2, and the present application is not limited herein.
It should be noted that, the specific connection relation of the input impedance matching module includes, but is not limited to, the above-mentioned manner, and the present application is not limited thereto.
As a preferred embodiment, the power amplifier further comprises an output impedance matching module 5, a first end of the output impedance matching module 5 is connected to the first end of the power amplifier Q1, a second end of the output impedance matching module 5 is connected to the first end of the load R3, and the output impedance matching module 5 is used for impedance matching of the power amplifier Q1 and the load R3.
Considering that the impedance of the output of the power amplifier Q1 may be different from the impedance of the load R3, the maximum power output may be reached by the transmitted power when the impedance of the output of the power amplifier Q1 matches the impedance of the load R3. An input impedance matching module is disposed between the power amplifier Q1 and the load R3 for matching the impedance of the power amplifier Q1 and the load R3.
As a preferred embodiment, the output impedance matching module 5 includes a fourth capacitor C4, a fifth capacitor C5 and a third inductor L3;
The first end of the fourth capacitor C4 is connected with the first end of the power amplifier Q1, the second end of the fourth capacitor C4 is connected with the first end of the third inductor L3, the second end of the third inductor L3 is connected with the first end of the fifth capacitor C5, and the second end of the fifth capacitor C5 is grounded.
Specifically, the specific parameters of the output impedance matching module 5 are determined by the power amplifier Q1 and the load R3, and the present application is not limited herein.
It should be noted that, the specific connection relation of the output impedance matching module 5 includes, but is not limited to, the above-mentioned manner, and the present application is not limited thereto.
As a preferred embodiment, the filtering module 1 includes a third capacitor C3 and a second inductor L2;
The first end of the third capacitor C3 is connected with the first end of the second inductor L2, the public end connected with the first end is connected with a power supply, the second end of the third capacitor C3 is grounded, and the second end of the second inductor L2 is connected with the first end of the power amplifier Q1.
Considering that the current output by the power supply may include a part of alternating current, which affects the operation of the power amplifier Q1, a filtering module 1 is provided to filter the alternating current output by the power supply.
Specifically, the filtering module 1 implements filtering through the third capacitor C3 and the second inductor L2, and parameters of the third capacitor C3 and the second inductor L2 are determined by the power amplifier Q1 and the power supply, which is not limited herein.
It should be noted that, the specific connection relationship of the filter module 1 includes, but is not limited to, the connection relationship described above, and the present application is not limited thereto.
As a preferred embodiment, the adjusting module 2 includes a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, and a fifth inductor L5;
The first end of the seventh capacitor C7 is connected with the first end of the fifth inductor L5, the connected common end is connected with the first end of the power amplifier Q1, the second end of the seventh capacitor C7 is grounded, the second end of the fifth inductor L5 is connected with the first end of the ninth capacitor C9, the second end of the ninth capacitor C9 is connected with the first end of the eighth capacitor C8, the connected common end is connected with the control end of the power amplifier Q1, and the second end of the eighth capacitor C8 is grounded;
The fifth inductor L5 and the ninth capacitor C9 are used for adjusting the sine wave output by the power amplifier Q1 into a square wave and outputting the square wave to the control end of the power amplifier Q1, the seventh capacitor C7 is used for impedance matching the signal output by the power amplifier Q1 with the fifth inductor L5 and the ninth capacitor C9, and the eighth capacitor C8 is used for impedance matching the signal output by the fifth inductor L5 and the ninth capacitor C9 with the power amplifier Q1.
Considering that the rising edge time of the sine wave is longer, so that the power amplifier Q1 consumes excessive energy in the turn-off process, the application is provided with the adjusting module 2 for adjusting the sine wave into a square wave, the time of the power amplifier Q1 in the turn-off process is shortened, and the energy of the turn-off signal can be reduced.
Specifically, the sine wave, the third harmonic wave and the fifth harmonic wave can be changed into square waves after being overlapped, the sine wave output by the power amplifier Q1 is subjected to frequency selection of the third harmonic wave and the fifth harmonic wave, the third harmonic wave, the fifth harmonic wave and the sine wave are overlapped, the synthesized square waves are input to the control end of the power amplifier Q1, and the turn-off time of the power amplifier Q1 can be shortened. The fifth inductor L5 and the ninth capacitor C9 select the frequency to be the target frequency, and the frequency band to select the third harmonic and the fifth harmonic, so that the sine wave is adjusted to be a square wave.
In addition, considering that the impedance of the power amplifier Q1 and the fifth inductor L5 and the ninth capacitor C9 may be mismatched, the present application realizes impedance matching through the seventh capacitor C7 and the eighth capacitor C8.
In summary, the turn-off time of the power amplifier Q1 is shortened by the fifth inductor L5 and the ninth capacitor C9, and impedance matching is achieved by the seventh capacitor C7 and the eighth capacitor C8.
The invention also provides a shortwave therapeutic apparatus, which comprises the power consumption control device of the shortwave therapeutic apparatus, a signal source V2 and a power amplifier Q1, wherein the signal source V2 is connected with the control end of the power amplifier Q1, and the power consumption control device of the shortwave therapeutic apparatus is connected with the control end and the first end of the power amplifier Q1.
The short-wave therapeutic apparatus provided by the application is described with reference to the above embodiments, and will not be described herein.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
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| CN106581861A (en) * | 2016-12-15 | 2017-04-26 | 四川大学 | Low-frequency pulse electromagnetic instrument used for treating knee osteoarthritis and cartilage injury and system thereof |
| CN108671425A (en) * | 2018-07-09 | 2018-10-19 | 广东易迈科技有限公司 | Ultrasonic electric stimulation therapeutic apparatus |
| CN213285409U (en) * | 2020-09-11 | 2021-05-28 | 四川大学 | Self-locking ultrasonic therapeutic apparatus |
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| CN217938917U (en) * | 2022-06-09 | 2022-12-02 | 河南翔宇医疗设备股份有限公司 | Power consumption control device of short wave therapeutic instrument and short wave therapeutic instrument |
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