Power consumption control device of short wave therapy apparatus and short wave therapy apparatus

Abstract

The application discloses a kind of short wave therapeutic apparatus's power consumption control device and short wave therapeutic apparatus, applied in power amplifier field, including filter module and adjustment module;The first end of filter module is connected with power supply, and the second end of filter module is connected with the first end of power amplifier;Adjustment module is used to adjust the sine wave signal output by power amplifier to square wave signal feedback to the control end of power amplifier.Due to the rising edge time of square wave signal is short, can reduce the time that power amplifier is in cutoff state, accelerates the turn-off time of power amplifier, so that the energy consumed in the process of power amplifier shutdown is reduced, improve the work efficiency of power amplifier.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power amplifier, in particular to a short wave therapy apparatus power consumption control device and short wave therapy apparatus. BACKGROUND

[0002] In the prior art, the short wave therapy apparatus uses a power amplifier to amplify the sinusoidal signal output by a signal source and then outputs the signal to a load. An inductor is arranged between the power supply and the power amplifier. Since the current of the inductor cannot change abruptly, the power amplifier will not generate a large power loss during the conduction process. However, the power amplifier is in a cut-off state during the cut-off process, which will generate a large power loss, resulting in a low power output from the power amplifier to the load and a low working efficiency of the power amplifier. SUMMARY

[0003] The present application aims to provide a short wave therapy apparatus power consumption control device and short wave therapy apparatus, which can shorten the cut-off time of the power amplifier, reduce the energy consumption of the power amplifier during the cut-off process, and improve the working efficiency of the power amplifier.

[0004] To solve the above technical problems, the present application provides a short wave therapy apparatus power consumption control device, which comprises a filtering module and an adjusting module.

[0005] The first end of the filtering module is connected to a power supply, and the second end of the filtering module is connected to the first end of a power amplifier.

[0006] The first end of the power amplifier is connected to the first end of a 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 to the output positive end of a signal source, for connecting the first end and the second end of the operational amplifier according to the signal output by the signal source.

[0007] The first end of the adjusting module is connected to the first end of the power amplifier, and the second end of the adjusting module is connected to the control end of the power amplifier, for adjusting the sinusoidal signal output by the power amplifier to a square wave signal and feeding back the square wave signal to the control end of the power amplifier.

[0008] Preferably, a DC bias module is further included, the first end of the DC bias module is connected to the output negative end of the signal source, and the second end of the DC bias module is connected to the control end of the power amplifier.

[0009] The DC bias module is used to assist the power amplifier in oscillation.

[0010] Preferably, the DC bias module comprises a first resistor, a first inductor, a first capacitor, a first diode, and a fifth resistor.

[0011] The first end of the first resistor is connected to the positive output end of the power supply, the second end of the first resistor is connected to 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 to 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 to the anode of the first diode, the cathode of the first diode is connected to the second end of the first capacitor, the negative output end of the power supply and the negative output end of the signal source and then grounded.

[0012] Preferably, the input impedance matching module further comprises a second capacitor, a sixth capacitor and a fourth inductor;

[0013] Preferably, the input impedance matching module further comprises a second capacitor, a sixth capacitor and a fourth inductor;

[0014] The first end of the sixth capacitor is connected to the positive output end of the signal source, the second end of the sixth capacitor is connected to 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 to the control end of the power amplifier.

[0015] Preferably, the output impedance matching module further comprises a fourth capacitor, a fifth capacitor and a third inductor;

[0016] Preferably, the output impedance matching module further comprises a fourth capacitor, a fifth capacitor and a third inductor;

[0017] The first end of the fourth capacitor is connected to the first end of the power amplifier, the second end of the fourth capacitor is connected to the first end of the third inductor, the second end of the third inductor is connected to the first end of the fifth capacitor, and the second end of the fifth capacitor is grounded.

[0018] Preferably, the filter module further comprises a third capacitor and a second inductor;

[0019] The first end of the third capacitor is connected to the first end of the second inductor, and the common end connected thereto is connected to the power supply, the second end of the third capacitor is grounded, and the second end of the second inductor is connected to the first end of the power amplifier.

[0020] Preferably, the adjustment module further comprises a seventh capacitor, an eighth capacitor, a ninth capacitor and a fifth inductor;

[0021] The first end of the seventh capacitor is connected with the first end of the fifth inductor, and the common end of the connection 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 inductor 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, and the common end of the connection is connected with the control end of the power amplifier, and the second end of the eighth capacitor is grounded.

[0022] The fifth inductor and the ninth capacitor are used for adjusting the sine wave output by the power amplifier into a square wave output to the control end of the power amplifier, the seventh capacitor is used for matching the signal output by the power amplifier with the impedance of the fifth inductor and the ninth capacitor, and the eighth capacitor is used for matching the signal output by the fifth inductor and the ninth capacitor with the impedance of the power amplifier.

[0023] To solve the above technical problems, the application further provides a short wave therapeutic apparatus, which comprises the power consumption control device of the short wave therapeutic apparatus, and further comprises a signal source and a power amplifier, the signal source is connected with the control end of the power amplifier, and the power consumption control device of the short wave therapeutic apparatus is connected with the control end and the first end of the power amplifier.

[0024] The application provides a power consumption control device of a short wave therapeutic apparatus and the short wave therapeutic apparatus, which are applied to the field of power amplifiers 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 a power amplifier. The adjusting module is used for adjusting a sine wave signal output by the power amplifier into a square wave signal and feeding back the square wave signal to the control end of the power amplifier. Since the rising edge time of the square wave signal is short, the time during which the power amplifier is in the cutoff state can be reduced, the turn-off time of the power amplifier is accelerated, the energy consumed by the power amplifier during the turn-off process is reduced, and the working efficiency of the power amplifier is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the prior art and the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 The structural schematic diagram of the power consumption control device of the short wave therapeutic apparatus provided by the present application is shown in the figure.

[0027] Figure 2a The current and voltage curve of the first end of the power amplifier provided by the present application is shown in the figure.

[0028] Figure 2bThe waveform diagram of the signal source provided for the application;

[0029] Figure 3 The structural schematic diagram of the power consumption control device of another short wave therapy apparatus provided for the application. DETAILED DESCRIPTION

[0030] The core of the application is to provide a power consumption control device of a short wave therapy apparatus and the short wave therapy apparatus, the turn-off time of the fast power amplifier is shortened, so that the energy consumed by the power amplifier in the turn-off process is reduced, and the working efficiency of the power amplifier is improved.

[0031] To make the purpose, technical solutions and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0032] Figure 1 The structural schematic diagram of the power consumption control device of a short wave therapy apparatus provided for the application, comprising a filtering module 1 and an adjusting module 2;

[0033] The first end of the filtering module 1 is connected with the power supply, and the second end of the filtering module 1 is connected with the first end of the power amplifier Q1;

[0034] 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, and the control end of the power amplifier Q1 is connected with the output positive end of the signal source V2, for connecting the first end and the second end of the operational amplifier according to the signal output by the signal source V2;

[0035] 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, for adjusting the sine wave signal output by the power amplifier Q1 to a square wave signal and feeding back to the control end of the power amplifier Q1.

[0036] Considering that in the prior art, the power amplifier Q1 amplifies the sine signal output by the signal source V2 and outputs to the load R3, an inductor is arranged between the power supply and the power amplifier Q1, and since the current of the inductor cannot be suddenly changed, the power amplifier Q1 will not produce large power loss in the process of being turned on. However, the power amplifier Q1 is in the cut-off state in the process of being turned off, which will produce large power loss, resulting in low power output from the power amplifier Q1 to the load R3 and low working efficiency of the power amplifier Q1.

[0037] The application provides a short wave therapeutic apparatus power consumption control device, comprising a filter module 1 and an adjustment module 2, the filter module 1 is arranged between a power supply V3 and the first end of a power amplifier Q1, filters the current output by the power supply V3, the filter module 1 comprises an inductor; the adjustment module 2 is arranged between the first end and the control end of the power amplifier Q1, the adjustment module 2 adjusts the sine wave signal output by the power amplifier Q1 into a square wave signal and feeds back to the control end of the power amplifier Q1. Because 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.

[0038] Specifically, Figure 2a The application provides a power amplifier, and a current and voltage curve diagram of the first end of the power amplifier is provided; Figure 2b The application provides a signal source waveform diagram; when the power amplifier Q1 is turned on, the point moves from Q1 to Q2, because the filter module 1 comprises an inductor, the current does not change suddenly when the power amplifier Q1 is turned on, and the power amplifier Q1 is in a low-voltage and high-current state when turned on, so the loss is small. When the turn-on time reaches the time of pi, the point moves from Q2 to Q3, at this time, the current reaches the peak current, and at this time, the voltage is still low. During the turn-on time from pi to 2pi, the power amplifier Q1 passes through the maximum power consumption point Q0. Therefore, to reduce the power consumption of the power amplifier Q1 during operation, the turn-off time of the power amplifier Q1 needs to be shortened, that is, the process from Q2 to Q3.

[0039] Because the rising edge time of the sine wave is long, the sine wave is converted into a square wave, because the rising edge time of the square wave is short, the time of the power amplifier Q1 in a high-power consumption state can be reduced during the turn-off process, so the power consumption can be reduced, and the working efficiency is improved.

[0040] The application provides a short wave therapeutic apparatus power consumption control device, applied to the field of power amplifiers, comprising a filter module 1 and an adjustment module 2; the first end of the filter module 1 is connected with a power supply, and the second end of the filter module 1 is connected with the first end of a power amplifier Q1; the adjustment module 2 is used for adjusting a sine wave signal output by the power amplifier Q1 into a square wave signal and feeding back to the control end of the power amplifier Q1. Because the rising edge time of the square wave signal is short, the time of the power amplifier Q1 in a cut-off state can be reduced, the turn-off time of the power amplifier Q1 is accelerated, the energy consumed by the power amplifier Q1 during the turn-off process is reduced, and the working efficiency of the power amplifier Q1 is improved.

[0041] On the basis of the above embodiment,

[0042] As a preferred embodiment, the DC bias module 3 is further included, a first end of the DC bias module 3 is connected with the output negative end of the signal source V2, and a second end of the DC bias module 3 is connected with the control end of the power amplifier Q1.

[0043] The DC bias module 3 is used to assist the power amplifier Q1 to oscillate.

[0044] Considering that the power amplifier Q1 is not easy to oscillate, the DC bias module 3 is arranged in the application, the DC bias module 3 is connected with the control end of the power amplifier Q1, and a bias signal is provided to assist the power amplifier Q1 to oscillate.

[0045] By arranging the DC bias module 3, the power amplifier Q1 can reduce a part of conduction loss in the working process.

[0046] 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.

[0047] A first end of the first resistor R1 is connected with the output positive end of the power supply V1, a second end of the first resistor R1 is connected with a first end of the first capacitor C1 and a first end of the first inductor L1 respectively, a second end of the first inductor L1 is connected with a first end of the fifth resistor R5 and the control end of the power amplifier Q1 respectively, a second end of the fifth resistor R5 is connected with an anode of the first diode D1, a cathode of the first diode D1 is connected with a 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.

[0048] Specifically, parameters of devices of the DC bias module 3 are determined by parameters of the power amplifier Q1, and the application does not make too many limitations here.

[0049] It should be noted that the specific connection relationship of the DC bias module 3 includes but is not limited to the above-mentioned manner, and the application does not make too many limitations here.

[0050] As a preferred embodiment, the input impedance matching module 4 is further included, 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 to match the impedance of the signal source V2 and the power amplifier Q1.

[0051] Considering that the impedance output by the signal source V2 and the impedance of the power amplifier Q1 can be different, when the impedance output by the signal source V2 and the impedance of the power amplifier Q1 are matched, the transmitted power can reach the maximum power output. Therefore, an input impedance matching module 4 is arranged between the signal source V2 and the power amplifier Q1, which is used to match the impedance of the signal source V2 and the power amplifier Q1.

[0052] As a preferred embodiment, the input impedance matching module 4 comprises a second capacitor C2, a sixth capacitor C6 and a fourth inductor L4;

[0053] The first end of the sixth capacitor C6 is connected with the output positive terminal 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.

[0054] Specifically, the specific parameters of the input impedance matching module 4 are determined by the power amplifier Q1 and the signal source V2, which are not limited here.

[0055] It should be noted that the specific connection relationship of the input impedance matching module includes but is not limited to the above-mentioned manner, which is not limited here.

[0056] As a preferred embodiment, the output impedance matching module 5 is further included, the first end of the output impedance matching module 5 is connected with the first end of the power amplifier Q1, the second end of the output impedance matching module 5 is connected with the first end of the load R3, and the output impedance matching module 5 is used for matching the impedance of the power amplifier Q1 and the load R3.

[0057] Considering that the impedance output by the power amplifier Q1 and the impedance of the load R3 can be different, when the impedance output by the power amplifier Q1 and the impedance of the load R3 are matched, the transmitted power can reach the maximum power output. Therefore, an input impedance matching module is arranged between the power amplifier Q1 and the load R3, which is used for matching the impedance of the power amplifier Q1 and the load R3.

[0058] As a preferred embodiment, the output impedance matching module 5 comprises a fourth capacitor C4, a fifth capacitor C5 and a third inductor L3;

[0059] 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.

[0060] Specifically, the specific parameters of the output impedance matching module 5 are determined by the power amplifier Q1 and the load R3, which are not limited here.

[0061] It should be noted that the specific connection relationship of the output impedance matching module 5 includes but is not limited to the above-mentioned manner, which is not limited here.

[0062] As a preferred embodiment, the filter module 1 comprises a third capacitor C3 and a second inductor L2;

[0063] The first end of the third capacitor C3 is connected with the first end of the second inductor L2, and the common end connected is connected with the 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.

[0064] Considering that the current output by the power supply may include part of the alternating current, which will affect the operation of the power amplifier Q1, the application sets a filtering module 1 to filter out the alternating current output by the power supply.

[0065] Specifically, the filtering module 1 realizes filtering through the third capacitor C3 and the second inductor L2, and the parameters of the third capacitor C3 and the second inductor L2 are determined by the power amplifier Q1 and the power supply, which are not limited here.

[0066] It should be noted that the specific connection relationship of the filtering module 1 includes but is not limited to the above connection relationship, which is not limited here.

[0067] 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.

[0068] The first end of the seventh capacitor C7 is connected with the first end of the fifth inductor L5, and the common end connected 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, and the common end connected is connected with the control end of the power amplifier Q1, and the second end of the eighth capacitor C8 is grounded.

[0069] The fifth inductor L5 and the ninth capacitor C9 are used to adjust the sine wave output by the power amplifier Q1 to a square wave output to the control end of the power amplifier Q1, the seventh capacitor C7 is used to match the impedance of the signal output by the power amplifier Q1 and the fifth inductor L5 and the ninth capacitor C9, and the eighth capacitor C8 is used to match the impedance of the signal output by the fifth inductor L5 and the ninth capacitor C9 and the power amplifier Q1.

[0070] Considering that the rising time of the sine wave is relatively long, which causes the power amplifier Q1 to consume too much energy in the process of turning off, the application sets an adjusting module 2 to adjust the sine wave to a square wave, and the time of the power amplifier Q1 in the process of turning off is shortened, which can reduce the energy of the turn-off signal.

[0071] Specifically, since the sine wave can become a square wave after superposition of its third harmonic and fifth harmonic, the application selects the third harmonic and fifth harmonic of the sine wave output by the power amplifier Q1, and superposes the third harmonic and fifth harmonic with the sine wave to synthesize a square wave input to the control end of the power amplifier Q1, so that the turn-off time of the power amplifier Q1 is shortened. The fifth inductor L5 and the ninth capacitor C9 select the target frequency and select the third harmonic and fifth harmonic as the frequency band, so that the sine wave is adjusted to a square wave.

[0072] In addition, considering that the impedance of the power amplifier Q1 and the fifth inductor L5 and the ninth capacitor C9 can be mismatched, the application realizes impedance matching through the seventh capacitor C7 and the eighth capacitor C8.

[0073] In summary, the fifth inductor L5 and the ninth capacitor C9 shorten the turn-off time of the power amplifier Q1, and the seventh capacitor C7 and the eighth capacitor C8 realize impedance matching.

[0074] The application also provides a short wave therapeutic instrument, which comprises the power consumption control device of the short wave therapeutic instrument, a signal source V2 and a power amplifier Q1, the signal source V2 is connected with the control end of the power amplifier Q1, and the power consumption control device of the short wave therapeutic instrument is connected with the control end and the first end of the power amplifier Q1.

[0075] The short wave therapeutic instrument provided by the application is introduced in the above embodiment, and will not be described here.

[0076] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts are referred to the method part.

[0077] It should also be noted that in the specification, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0078] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A power consumption control device for a shortwave therapy instrument, characterized in that, The filter module and the adjustment module are included. The first end of the filter module is connected with the power supply, and the second end of the filter 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 output positive end of the signal source, so as to connect the first end and the second end of the power amplifier according to the signal output by the signal source. The first end of the adjustment module is connected with the first end of the power amplifier, and the second end of the adjustment module is connected with the control end of the power amplifier, so as to adjust the sine wave signal output by the power amplifier to a square wave signal and feed back to the control end of the power amplifier. The adjustment 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, and the common end of the connection 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 inductor 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, and the common end of the connection 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 the sine wave output by the power amplifier to a square wave output to the control end of the power amplifier, the seventh capacitor is used for impedance matching of the signal output by the power amplifier and the fifth inductor and the ninth capacitor, and the eighth capacitor is used for impedance matching of the signal output by the fifth inductor and the ninth capacitor and the power amplifier. The filter module includes a third capacitor and a second inductor. The first end of the third capacitor is connected with the first end of the second inductor, and the common end of the connection 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. A direct current biasing module is further included, the first end of the direct current biasing module is connected with the output negative end of the signal source, and the second end of the direct current biasing module is connected with the control end of the power amplifier. The direct current biasing module is used for assisting the power amplifier to oscillate.

2. The power consumption control device for short wave therapy apparatus as claimed in claim 1, wherein The direct current biasing 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 and then grounded.

3. The power consumption control device for short wave therapy apparatus as claimed in claim 1, wherein The input impedance matching module is further connected with the output positive terminal of the signal source at a first end and with the control terminal of the power amplifier at a second end, and is used for impedance matching between the signal source and the power amplifier.

4. The power consumption control device for short wave therapy apparatus as claimed in claim 3, wherein The input impedance matching module comprises a second capacitor, a sixth capacitor and a fourth inductor. The first end of the sixth capacitor is connected with the output positive terminal 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 terminal of the power amplifier.

5. The power consumption control device for short wave therapy apparatus as claimed in claim 1, wherein The output impedance matching module is further connected with the first end of the power amplifier at a first end and with the first end of the load at a second end, and is used for impedance matching between the power amplifier and the load.

6. The power consumption control device for short wave therapy apparatus as claimed in claim 5, wherein The output impedance matching module comprises 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.

7. A short wave therapy apparatus, characterized by comprising: The power consumption control device of the short wave therapy apparatus comprises a signal source and a power amplifier, the signal source is connected with the control terminal of the power amplifier, and the power consumption control device of the short wave therapy apparatus is connected with the control terminal and the first end of the power amplifier.

Images