CN217366905U - Therapeutic instrument and modulation circuit thereof - Google Patents
Therapeutic instrument and modulation circuit thereof Download PDFInfo
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- CN217366905U CN217366905U CN202220759452.8U CN202220759452U CN217366905U CN 217366905 U CN217366905 U CN 217366905U CN 202220759452 U CN202220759452 U CN 202220759452U CN 217366905 U CN217366905 U CN 217366905U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model relates to a modulation technology of therapeutic instrument, especially a therapeutic instrument and modulation circuit thereof. Modulation circuit includes power module and singlechip, and power module connects the power end of singlechip, still includes: the boost module comprises a comparator and a boost chip, one input end of the comparator is connected with the voltage output end of the single chip microcomputer, the other input end of the comparator is connected with the output end of the boost chip, the output end of the comparator is connected with the feedback end of the boost chip, the enable end of the boost chip is connected with the input end of the single chip microcomputer, and the power supply ends of the comparator and the boost chip are connected with the power supply module; the output end of the boosting chip is connected with the power supply end of the driving module, and the control end of the driving module is connected with the control output end of the single chip microcomputer. The utility model discloses make circuit cost reduce by a wide margin, and the circuit volume is littleer, and then makes this therapeutic instrument make the volume less, more portable.
Description
Technical Field
The utility model relates to a modulation technology of a therapeutic apparatus, in particular to a therapeutic apparatus and a modulation circuit thereof.
Background
The low and medium frequency therapeutic apparatus is the most common and most common electronic medical apparatus for people at present, and is widely applied to hospitals and families.
The output current of the low-intermediate frequency therapeutic apparatus contains low-frequency current and intermediate-frequency current components, wherein the low-frequency current has different frequencies, different waveforms (sine wave, square wave, triangular wave, trapezoidal wave and the like) and different modulation modes, the modulated intermediate-frequency current has the characteristics and the therapeutic effect of the low-frequency current and the intermediate-frequency current, the effect is deeper, the electrolytic stimulation effect is not generated, and the low-intermediate frequency therapeutic apparatus is easy to accept by a human body and is easy to generate adaptability. The main treatment effects are as follows: relieving pain; promoting local tissue blood circulation and lymphatic return; the skeletal muscle is contracted, so that the muscle can be exercised, and the muscle atrophy is prevented; increase smooth muscle tone; acting on the ganglia and nerve segments, it can produce reflex action, regulate autonomic nerve function, etc., and thus is widely used.
The modulation circuit of low intermediate frequency therapeutic instrument generally adopts power amplifier circuit and transformer boost circuit to carry out the adjustment that steps up of voltage at the in-process of current modulation for whole modulation circuit is more complicated, and PC B plate volume is great, and the debugging is troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model provides a therapeutic instrument and modulation circuit thereof for solve above-mentioned problem.
According to the utility model discloses an aspect provides a modulation circuit of therapeutic instrument, including power module and singlechip, the power end of singlechip is connected to power module, still includes:
the boost module is used for adjusting the voltage output by the single chip microcomputer and comprises a comparator and a boost chip, wherein one input end of the comparator is connected with the voltage output end of the single chip microcomputer, the other input end of the comparator is connected with the output end of the boost chip, the output end of the comparator is connected with the feedback end of the boost chip, the enabling end of the boost chip is connected with the input end of the single chip microcomputer, and the power supply ends of the comparator and the boost chip are connected with the power supply module;
the driving module is used for performing intermediate frequency modulation on the voltage output by the boosting chip to realize a therapeutic effect, the output end of the boosting chip is connected with the power supply end of the driving module, and the control end of the driving module is connected with the control output end of the single chip microcomputer.
In addition, the utility model also provides a therapeutic instrument, including the therapeutic instrument body, still include the modulation circuit of foretell therapeutic instrument.
The utility model provides a therapeutic instrument and modulation circuit thereof adopts the chip and the comparator that steps up to realize the function of stepping up among the modulation circuit for circuit cost reduces substantially, and the circuit volume is littleer, and then makes this therapeutic instrument make the volume less, more portable.
Furthermore, in the therapeutic apparatus and the modulation circuit thereof, the driving module includes a first switch tube, a second switch tube, a third switch tube, a fourth switch tube, a fifth switch tube and a sixth switch tube, a control end of the third switch tube is connected to the first control output end of the single chip microcomputer, an input end of the third switch tube is connected to the control end of the first switch tube, an output end of the third switch tube is connected to the control end of the fifth switch tube, an input end of the third switch tube and an input end of the first switch tube are connected to the output end of the boosting module, an output end of the first switch tube is connected to the input end of the sixth switch tube, an output end of the sixth switch tube is grounded, and a connection point of the first switch tube and the sixth switch tube serves as an output end of the driving module; the second control output of singlechip is connected to the control end of fourth switch tube, the control end of second switch tube is connected to the input of fourth switch tube, the control end of sixth switch tube is connected to the output of fourth switch tube, and the output of the module that steps up is connected to the input of fourth switch tube and the input of second switch tube, the input of fifth switch tube is connected to the output of second switch tube, the output ground connection of fifth switch tube, another output as drive module is regarded as to the tie point of second switch tube and fifth switch tube.
Furthermore, in the therapeutic apparatus and the modulation circuit thereof, the driving module further comprises a feedback module, the feedback module comprises an amplifier, one input end of the amplifier is connected with the output ends of the sixth switching tube and the fifth switching tube, the other input end of the amplifier is connected with the output end of the amplifier, and the output end of the amplifier is connected with the single chip microcomputer.
Furthermore, in the above therapeutic apparatus and the modulation circuit thereof, another input terminal of the comparator is connected to the output terminal of the boost chip through a voltage dividing circuit, another input terminal of the comparator is connected to the voltage dividing point of the voltage dividing circuit, the voltage dividing circuit includes a plurality of resistors connected in series, and each resistor is connected in parallel to a capacitor.
Furthermore, in the therapeutic apparatus and the modulation circuit thereof, an inductor is connected in series between the power supply end and the output end of the boost chip.
Furthermore, in the therapeutic apparatus and the modulation circuit thereof, a digital potentiometer is arranged on a connection line between the voltage output end of the singlechip and one input end of the comparator.
Furthermore, in the therapeutic apparatus and the modulation circuit thereof, the power module includes a first power conversion chip and a second power conversion chip, an input end of the first power conversion chip is connected to the power supply, an output end of the first power conversion chip is connected to an input end of the second power conversion chip, an output end of the second power conversion chip is connected to a power supply end of the single chip, a power supply end of the comparator is connected to an output end of the first power conversion chip, and a power supply end of the voltage boosting chip is connected to the power supply.
Furthermore, in the therapeutic apparatus and the modulation circuit thereof, the output end of the power supply, the output end of the first power conversion chip and the output end of the second power conversion chip are all provided with a filter circuit.
Furthermore, the therapeutic apparatus and the modulation circuit thereof further comprise a human-computer interaction module, wherein the human-computer interaction module is in communication connection with the single chip microcomputer to realize signal transmission and information display.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are illustrated by way of example and not by way of limitation, and like reference numerals designate like or corresponding parts, in which:
FIG. 1 is a schematic block diagram of a modulation circuit of the therapeutic apparatus of the present invention;
FIG. 2 is a schematic circuit diagram of the modulation circuit of the therapeutic apparatus of the present invention;
FIG. 3 is a schematic circuit diagram of a power module of the modulation circuit of the therapeutic apparatus of the present invention;
fig. 4 is a waveform diagram of the output of the single chip in the modulation circuit according to the present invention;
FIG. 5 is a waveform diagram of the output of the digital potentiometer in the modulation circuit of the present invention;
fig. 6 is a waveform diagram of the output of the modulation circuit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
It should be understood that when the terms "first", "second", etc. are used in the claims, the specification and the drawings of the present invention, they are used only for distinguishing different objects, and not for describing a particular order. The terms "comprises" and "comprising," when used in the specification and claims of the present invention, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In one embodiment, the therapeutic apparatus comprises a therapeutic apparatus body and a modulation circuit of the therapeutic apparatus. The modulation circuit of the therapeutic apparatus comprises a power supply module, a single chip microcomputer, a boosting module, a driving module and a man-machine interaction module.
Specifically, as shown in fig. 1, 2, and 3, the power module includes a 7.2V dc power supply (two lithium batteries), a first power conversion chip VR1, and a second power conversion chip VR2, an input end of the first power conversion chip VR1 is connected to the 7.2V dc power supply, an output end of the first power conversion chip VR1 is connected to an input end of the second power conversion chip VR2, wherein the first power conversion chip VR1 adopts a model of HT7550-1 for converting a voltage of 7.2V into a voltage of 5V, and the second power conversion chip VR2 adopts a model of HT7533-1 for converting a voltage of 5V into a voltage of 3.3V, so that the power module can output three different voltages of 7.2V, 5V, and 3.3V to supply power to different components. Of course, about supply voltage's size, confirm according to the attribute of components and parts, the utility model discloses do not limit to this.
Meanwhile, the output end of the 7.2V direct-current power supply, the output end of the first power supply conversion chip VR1 and the output end of the second power supply conversion chip VR2 are all provided with filter circuits, and the filter circuits are composed of capacitors connected in parallel. Specifically, a capacitor C13 and a capacitor C12 which are connected in parallel are arranged at the output end of the 7.2V direct-current power supply, the capacitance value of the capacitor C13 is 104, and the capacitance value of the capacitor C12 is 330 muF; the output end of the first power conversion chip VR1 is provided with a capacitor C5 and a capacitor C4 which are connected in parallel, the capacitance value of the capacitor C5 is 104, and the capacitance value of the capacitor C4 is 100 muF; the output end of the second power conversion chip VR2 is provided with a capacitor C2 and a capacitor C3 which are connected in parallel, the capacitance value of the capacitor C2 is 100 muF, and the capacitance value of the capacitor C3 is 104. In another embodiment, the filter circuit may not be provided when the output voltages of the power supply and the power conversion chips are kept stable.
The single chip microcomputer U1 is the core part of the whole therapeutic apparatus and is a functional module with more interfaces such as IO port, DA port, AD port and serial port. The model adopted by the single chip microcomputer U1 is STM32F051C8T6, a power supply end VBAT (pin 1) of the single chip microcomputer U1 is connected with an output end of a second power conversion chip VR2, 3.3V power supply is achieved, a capacitor C7 is connected between the power supply end VBAT of the single chip microcomputer U1 and the ground in series, and the capacitance value of the capacitor C7 is 104. A VDD end (pin 8) and a VSS end (pin 47) of the singlechip U1 are connected with a capacitor C1 and a capacitor C6 in parallel, capacitance values of the capacitor C1 and the capacitor C6 are both 104, the output of a BOOT0 end of the singlechip U1 is grounded through a resistor R1, and the resistance value of the resistor R1 is 10K omega; the NRST end of the singlechip U1 is connected with a connection point of a resistor R2 and a capacitor C8, the resistance value of the resistor R2 is 10K omega, and the capacitance value of the capacitor C8 is 104; a capacitor C11 is connected in parallel with a VDD terminal (pin 24) and a VSS terminal (pin 23) of the singlechip U1, and the capacitance value of the capacitor C11 is 104.
The boosting module comprises a comparator U3A (namely a voltage comparator in fig. 1), a digital potentiometer U4 and a boosting chip U2, power supply terminals VCC of the comparator U3A and the digital potentiometer U4 are connected with an output end of the first power conversion chip VR1, a capacitor C17 is connected between the power supply terminal VCC of the digital potentiometer U4 and the ground in series, the capacitance value of the capacitor C17 is 104, 5V power supply is realized, and the power supply terminal VIN of the boosting chip U2 is connected with an output end of a 7.2V direct-current power supply, so that 7.2V power supply is realized. The model of the comparator U3A is LMV358, the model of the digital potentiometer U4 is X9C103, and the model of the boost chip U2 is XL6019E 1.
An input end (here, an inverting input end) of the comparator U3A is connected to a voltage output end PA4 (pin 14, an output voltage of the input end is between 0 and 3.3V) of the single chip microcomputer through a digital potentiometer U4, specifically, an input end Vh of the digital potentiometer U4 is connected to a voltage output end PA4 of the single chip microcomputer U1, control ends INC _ and U/D of the digital potentiometer U4 are respectively connected to a PB0 end and a PB2 end of the single chip microcomputer U1 through a resistor R15 and a resistor R16, an output end Vw of the digital potentiometer U4 is connected to the inverting input end of the comparator U3A through a resistor R21, a capacitor C19 is arranged between an output end Vw of the digital potentiometer U4 and the ground, resistance values of the resistor R15 and the resistor R16 are both 1K Ω, resistance value of the resistor R21 is 1K Ω, and capacitance value of the capacitor C19 is 104. The digital potentiometer U4 is used for dividing the low-frequency waveform signal of 0-3.3V output by the singlechip U1 according to the requirement of strength output and then outputting the signal to the comparator U3A.
The other input end (in this case, the non-inverting input end) of the comparator U3A is connected to the output end of the boost chip U3A through a voltage dividing circuit, the voltage dividing circuit includes a resistor R13 and a resistor R17 which are connected in series, a capacitor C10 is connected in parallel to both ends of the resistor R13, a capacitor C15 is connected in parallel to both ends of the resistor R17, the other input end of the comparator U3A is connected to a voltage dividing point of the voltage dividing circuit (i.e., a connection point of the resistor R13 and the resistor R17), a capacitor C9 is connected in series between the output end of the boost chip and the ground, a capacitor C18 is connected in series between the power supply end of the comparator U3A and the ground, the resistance value of the resistor R13 is 20K Ω, the resistance value of the resistor R17 is 1K Ω, the capacitance C10, the capacitance value of the capacitor C18 and the capacitance value of the capacitor C15 are 104, and the capacitance value of the capacitor C9 is 10 μ F.
The output end of the comparator U3A is connected with the feedback end FB of the boost chip U2, the enable end EN of the boost chip U2 is connected with the input end PB12 of the single chip microcomputer through a resistor R14, an inductor L1 is connected in series between the power supply end VIN and the output end SW of the boost chip U2, a diode D1 is arranged on an output line of the output end SW of the boost chip U2, the resistance value of the resistor R14 is 1K omega, the size of the inductor L1 is 82 muH, and the model of the diode D1 is SS 24. The comparator U3A is used for comparing the boosted voltage sample with the waveform voltage output by the digital potentiometer U4 and outputting a control signal to the FB terminal of the boost chip, thereby controlling the intensity of the output voltage of the boost chip. The function of the boost chip U2 is to perform functional output to the power voltage according to the control signal sent by the comparator U3A, the output of the boost chip U2 can reach 60V at most, and the output waveform voltage of the boost chip U2 is in direct proportion to the output waveform voltage of the digital potentiometer U4.
The PA1 end (pin 11) of the single chip microcomputer U1 is connected with a connection point of the resistor R4 and the resistor R9, one end of the resistor R4 and the resistor R9 which are connected in series is connected with the output end of the boosting module, the other end of the resistor R4 and the other end of the resistor R9 which are connected in series are grounded and used for detecting whether the voltage output by the boosting chip is normal or not, the resistance value of the resistor R4 is 20K omega, and the resistance value of the resistor R9 is 1K omega.
The driving module comprises an H-bridge driving circuit, the H-bridge driving circuit comprises a first switch tube Q1, a second switch tube Q2, a third switch tube Q3, a fourth switch tube Q4, a fifth switch tube Q5 and a sixth switch tube Q6, a control end of the third switch tube Q3 is connected with a first control output end PB13 of the singlechip U1 through a resistor R11, an input end of the third switch tube Q3 is connected with a control end of the first switch tube Q1 through a resistor R10, an output end of the third switch tube Q3 is connected with a control end of the fifth switch tube Q5 through a resistor R19, the input end of the third switching tube Q3 is connected with the output end of the boosting module through a resistor R7, the input end of the first switching tube Q1 is connected with the output end of the boosting module, the output end of the first switching tube Q1 is connected with the input end of the sixth switching tube Q6, the output end of the sixth switching tube Q6 is grounded through a resistor R20, and the connection point of the first switching tube Q1 and the sixth switching tube Q6 serves as an output end connection terminal P4 of the driving module; the control end of a fourth switching tube Q4 is connected with a second control output end PA12 of the single-chip microcomputer U1 through a resistor R12, the input end of the fourth switching tube Q4 is connected with the control end of a second switching tube Q2 through a resistor R8, the output end of the fourth switching tube Q4 is connected with the control end of a sixth switching tube Q6 through a resistor R18, the input end of the fourth switching tube Q4 is connected with the output end of the boosting module through a resistor R6, the input end of the second switching tube Q2 is connected with the output end of the boosting module, the output end of the second switching tube Q2 is connected with the input end of a fifth switching tube Q5, the output end of the fifth switching tube Q5 is grounded through a resistor R20, and the connection point of the second switching tube Q2 and the fifth switching tube Q5 serves as the other output end connection terminal P5 of the driving module.
Meanwhile, the driving module further comprises a feedback module for monitoring whether the electrode sheet falls off, that is, whether the terminal P4 and the terminal P5 fall off. The feedback module comprises an amplifier U3B, one input end (here, a non-inverting input end) of the amplifier U3B is connected with the output ends of a sixth switching tube Q6 and a fifth switching tube Q5 through a resistor R24, the other input end (here, an inverting input end) of the amplifier U3B is connected with the output end of the amplifier U3B through a resistor R22, the output end of the amplifier U3B is connected with a PA6 end (pin 16) of the single chip microcomputer, a capacitor C14 is arranged between the output end of the amplifier U3B and the ground, and a resistor R23 is arranged between the inverting input end of the amplifier U3B and the ground.
In the driving module, the model of the first switching tube Q1 and the model of the second switching tube Q2 are MMBT 54012L, the model of the third switching tube Q3, the fourth switching tube Q4, the fifth switching tube Q5 and the sixth switching tube Q6 is MMBT 5551G 1, the model of the amplifier U3B is LMV358, the resistance of the resistor R11 is 1K Ω, the resistance of the resistor R10 is 3K Ω, the resistance of the resistor R19 is 1K Ω, the resistance of the resistor R7 is 10K Ω, the resistance of the resistor R20 is 0.5 Ω, the resistance of the resistor R12 is 1K Ω, the resistance of the resistor R8 is 3K Ω, the resistance of the resistor R18 is 1K Ω, the resistance of the resistor R6 is 10K Ω, the resistance of the resistor R24 is 1K Ω, the resistance of the resistor R22 is 20K Ω, the capacitance value of the capacitor C14, and the resistance of the resistor R23 is 1K Ω.
The singlechip U1 is connected with the man-machine interaction module through a terminal P2, the man-machine interaction module realizes 3.3V power supply, and the communication connection with the singlechip is realized through a resistor R3 and a resistor R5. The resistance values of the resistor R3 and the resistor R5 are 1K omega. And a terminal P1 connected with the singlechip U1 is a burning port.
The functions that the singlechip U1 can realize are as follows:
1. the control and display information of the human-computer interaction part is transmitted through a serial port, for example, the Bluetooth is connected through the serial port, then the mobile phone is connected, and the APP is installed on the mobile phone to complete control or display, or the touch display screen is externally connected to complete control and display;
2. the DA port of the singlechip U1 can output 0-3.3V low-frequency (1 Hz-400 Hz) waveform (sine wave, square wave, triangular wave, trapezoidal wave and the like) signals to the digital potentiometer;
3. the IO port of the singlechip U1 achieves the adjustment of waveform output intensity by controlling a digital potentiometer;
4. the IO port of the single chip microcomputer U1 performs intermediate frequency modulation to 1 KHz-10 KHz by controlling H bridge drive.
The working principle of the boost module and the driving module is explained in detail by taking a triangular wave as an example:
the boosting module outputs the waveform shown in the figure 5 after the 0V-3.3V waveform output by the singlechip shown in the figure 4 passes through the digital potentiometer U4 through the comparator U3A, the digital potentiometer U4 and the boosting chip U2, and finally outputs the waveform voltage of 0V-55V through the boosting chip;
the control end of the H-bridge drive circuit receives a control signal of the single chip microcomputer U1, a pin 26 and a pin 33 of the single chip microcomputer U1 alternately output a high level and a low level, when the pin 26 is at the high level, the switch tube Q3 is conducted, then the switch tube Q1 and the switch tube Q5 are conducted, and a circulation path of 0V-55V current is sequentially the switch tube Q1, a terminal P4, a terminal P5, the switch tube Q5 and a resistor R20; pin 33 is low and transistor Q4 is off, which in turn turns on transistor Q2 and transistor Q6. When the pin 33 is at a high level, the switching tube Q4 is turned on, and then the switching tube Q2 and the switching tube Q6 are turned on, a flow path of a current of 0V-55V sequentially includes the switching tube Q2, a terminal P5, a terminal P4, a switching tube Q6, and a resistor R20, and meanwhile, when the pin 26 is at a low level, the switching tube Q3 is turned off, and then the switching tube Q1 and the switching tube Q5 are turned off. The pin 26 and the pin 33 alternately output a high level and a low level for one cycle, and their output frequencies are intermediate frequency modulation frequencies. The 0V-55V waveform voltage is modulated by the driving circuit into a waveform as shown in fig. 6.
In the above-mentioned embodiment, the model and the size of each electrical part can be set for as required, the utility model discloses do not do the restriction to this.
In the above-mentioned embodiment, in order to improve the reliability of modulation, the drive module adopts H bridge drive circuit, as other implementation modes, also can adopt the drive circuit of other the same functions, the utility model discloses do not limit this.
The present case designs a neotype low intermediate frequency therapeutic instrument circuit, has abandoned power amplifier circuit and step up transformer among the traditional circuit, has utilized step up chip to accomplish above-mentioned function ingeniously for circuit cost reduces by a wide margin, and the circuit volume is littleer, and the complete machine is done like the cigarette case size even, more portable.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a modulation circuit of therapeutic instrument, includes power module and singlechip, and power module connects the power end of singlechip, its characterized in that still includes:
the boost module is used for adjusting the voltage output by the single chip microcomputer and comprises a comparator and a boost chip, wherein one input end of the comparator is connected with the voltage output end of the single chip microcomputer, the other input end of the comparator is connected with the output end of the boost chip, the output end of the comparator is connected with the feedback end of the boost chip, the enabling end of the boost chip is connected with the input end of the single chip microcomputer, and the power supply ends of the comparator and the boost chip are connected with the power supply module;
the driving module is used for performing intermediate frequency modulation on the voltage output by the boosting chip to realize a therapeutic effect, the output end of the boosting chip is connected with the power supply end of the driving module, and the control end of the driving module is connected with the control output end of the single chip microcomputer.
2. The modulation circuit of the therapeutic apparatus according to claim 1, wherein the driving module comprises a first switch tube, a second switch tube, a third switch tube, a fourth switch tube, a fifth switch tube and a sixth switch tube, wherein a control end of the third switch tube is connected to the first control output end of the single chip microcomputer, an input end of the third switch tube is connected to the control end of the first switch tube, an output end of the third switch tube is connected to the control end of the fifth switch tube, an input end of the third switch tube and an input end of the first switch tube are connected to the output end of the boosting module, an output end of the first switch tube is connected to the input end of the sixth switch tube, an output end of the sixth switch tube is grounded, and a connection point of the first switch tube and the sixth switch tube serves as one output end of the driving module; the second control output of singlechip is connected to the control end of fourth switch tube, the control end of second switch tube is connected to the input of fourth switch tube, the control end of sixth switch tube is connected to the output of fourth switch tube, and the output of the module that steps up is connected to the input of fourth switch tube and the input of second switch tube, the input of fifth switch tube is connected to the output of second switch tube, the output ground connection of fifth switch tube, another output as drive module is regarded as to the tie point of second switch tube and fifth switch tube.
3. The modulation circuit of the therapeutic apparatus according to claim 2, wherein the driving module further comprises a feedback module, the feedback module comprises an amplifier, one input terminal of the amplifier is connected to the output terminals of the sixth switching tube and the fifth switching tube, the other input terminal of the amplifier is connected to the output terminal of the amplifier, and the output terminal of the amplifier is connected to the single chip microcomputer.
4. The modulation circuit of the therapeutic apparatus according to claim 1, wherein another input terminal of the comparator is connected to the output terminal of the boost chip through a voltage dividing circuit, another input terminal of the comparator is connected to the voltage dividing point of the voltage dividing circuit, the voltage dividing circuit comprises a plurality of resistors connected in series, and each resistor is connected in parallel with a capacitor.
5. The modulation circuit of the therapeutic apparatus according to claim 1, wherein an inductor is connected in series between the power supply terminal and the output terminal of the boost chip.
6. The modulation circuit of the therapeutic apparatus according to claim 1, wherein a digital potentiometer is disposed on a connection line between the voltage output terminal of the single chip and one input terminal of the comparator.
7. The modulation circuit of the therapeutic apparatus according to claim 1, wherein the power module comprises a first power conversion chip and a second power conversion chip, the input terminal of the first power conversion chip is connected to the power source, the output terminal of the first power conversion chip is connected to the input terminal of the second power conversion chip, the output terminal of the second power conversion chip is connected to the power terminal of the single-chip microcomputer, the power terminal of the comparator is connected to the output terminal of the first power conversion chip, and the power terminal of the voltage boost chip is connected to the power source.
8. The modulation circuit of the therapeutic apparatus according to claim 7, wherein the output terminal of the power supply, the output terminal of the first power conversion chip and the output terminal of the second power conversion chip are respectively provided with a filter circuit.
9. The modulation circuit of the therapeutic apparatus according to claim 1, further comprising a human-computer interaction module, wherein the human-computer interaction module is in communication connection with the single chip microcomputer to transmit signals and display information.
10. An apparatus comprising an apparatus body, characterized in that it further comprises a modulation circuit of the apparatus according to any of claims 1-9.
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| CN202220759452.8U CN217366905U (en) | 2022-04-01 | 2022-04-01 | Therapeutic instrument and modulation circuit thereof |
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| CN202220759452.8U CN217366905U (en) | 2022-04-01 | 2022-04-01 | Therapeutic instrument and modulation circuit thereof |
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