CN211701999U - Control circuit for intermediate-frequency bioelectricity physiotherapy instrument - Google Patents
Control circuit for intermediate-frequency bioelectricity physiotherapy instrument Download PDFInfo
- Publication number
- CN211701999U CN211701999U CN202020821590.5U CN202020821590U CN211701999U CN 211701999 U CN211701999 U CN 211701999U CN 202020821590 U CN202020821590 U CN 202020821590U CN 211701999 U CN211701999 U CN 211701999U
- Authority
- CN
- China
- Prior art keywords
- resistor
- triode
- amplifier
- connecting terminal
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Amplifiers (AREA)
Abstract
The utility model discloses a control circuit for intermediate frequency bioelectricity physiotherapy equipment, include: the output end of the main control circuit outputs a therapeutic pulse magnetic field through the D/A conversion circuit, the amplification circuit and the output delay circuit in sequence, and the power supply circuit provides electric energy for the main control circuit, the D/A conversion circuit, the amplification circuit and the output delay circuit; the utility model discloses can export the physiotherapy signal of various different treatment, can make the intermediate frequency pulse of multichannel act on the user, make the user feel that the pulse changes abundant with soft, body feel comfortable, physiotherapy effectual, the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of physiotherapy equipment, concretely relates to a control circuit for intermediate frequency bioelectricity physiotherapy equipment.
Background
Because of the development of society and the change of life style of people, various chronic diseases come after each other, people face the most serious health problems of unbalance of diet, emotion, daily life and the like, traditional Chinese medicine health preservation follows the rules of the nature, health physical therapy is carried out, and the trend of health care and health preservation of modern people is achieved, and the bioelectricity intermediate frequency physiotherapy instrument penetrates deep tissues by pulse current to realize the treatment of superficial and deep focus so as to achieve the purpose of treatment/health care; specifically, can adjust nervous excitability and inhibitive nature with the help of intermediate frequency physiotherapy equipment, activate the cell activity of the tissue around the focus, strengthen local blood circulation and metabolism ability, improve immunity, adjust the endocrine, and have the effect of restoration and treatment to the tissue around the focus, utilize biological electric conduction principle, the completion is opened main and collateral channels, thereby reach the purpose of treatment chronic diseases, be applicable to clinical rehabilitation physiotherapy to diseases such as cervical spondylopathy, scapulohumeral periarthritis, lumbar disc herniation, and present relevant field lacks safe, practical relevant circuit, in order to reach the physiotherapy effect under the prerequisite of guaranteeing safety.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the deficiencies in the prior art, the technical problem who solves is: provides a control circuit which has simple structure and safe use and is used for the intermediate frequency bioelectricity physiotherapy instrument.
In order to solve the technical problem, the utility model discloses a technical scheme be: a control circuit for an intermediate frequency bioelectrical physiotherapy instrument, comprising: the therapeutic pulse magnetic field is output by the output end of the main control circuit sequentially through the D/A conversion circuit, the amplification circuit and the output delay circuit, and the power supply circuit provides electric energy for the main control circuit, the D/A conversion circuit, the amplification circuit and the output delay circuit.
Preferably, the display circuit is further included, and the display circuit is connected with the output end of the main control circuit.
Preferably, the main control circuit comprises a single chip microcomputer IC1, the D/A conversion circuit comprises a D/A conversion chip IC2, a triode Q2, an amplifier P1 and an amplifier P2, and the display circuit comprises a display interface JP 1;
p0.0 end, P0.1 end, P0.2 end, P0.3 end, P0.4 end, P0.5 end, P0.6 end and P0.7 end of the singlechip IC1 are respectively connected with D10 end, D11 end, D12 end, D13 end, D14 end, D15 end, D16 end and D17 end of a D/A conversion chip IC2, P3.4 end of the singlechip IC1 is connected with the base of a triode Q1 after being connected with a resistor R1 in series, the emitter of the triode Q1 is connected with a power supply end, VREF 1 collector of the triode Q1 is connected with a horn F1 in series and then grounded, VREF end of the D/A conversion chip IC1 is connected with the collector of the triode Q1 after being connected with VREF, the emitter of the triode Q1 is connected with VREF 5V, the base of the triode Q1 is connected with P3.72 end of the singlechip IC1 in series, P0.6 end and P0.7 end of the P0.72A conversion chip, and P72 end of the D/A conversion chip IC 72 are connected with a resistor R1 and D1 after being connected with a chip, the RFA conversion chip of the RFA conversion chip, VREF 1, the RFA, One end of a resistor R8 is connected, the inverting input end of an amplifier P1 is connected with the IOUT1 end of a D/A conversion chip IC2, the non-inverting input end of an amplifier P1 is grounded, the other end of a resistor R8 is connected with the non-inverting input end of an amplifier P2, the inverting input end of an amplifier P2 is respectively connected with the output end of the amplifier P2 and one end of a capacitor C4, the other end of a capacitor C4 is connected with a resistor R9 in series and then grounded, a connecting line between the capacitor C4 and the resistor R9 is connected with a connecting terminal a, a first connecting terminal of the display interface JP1 is grounded, a second connecting terminal of the display interface JP1 is connected with a 5V power supply terminal, and a fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fifteenth, thirteenth, fifteenth, eleventh, or twelfth connecting terminals of the display interface JP, The sixteenth connecting terminal is respectively connected with the P2.7 end, the P2.6 end, the P2.5 end, the P1.1 end, the P1.2 end, the P1.3 end, the P1.4 end, the P1.5 end, the P1.6 end, the P1.7 end, the P3.1 end and the P3.0 end of the singlechip IC 1.
Preferably, the amplifying circuit comprises a digital potentiometer IC3, an amplifier P3 and an amplifier P4, wherein the INC end of the digital potentiometer IC3 is connected with the P2.1 end of the singlechip IC1, the U/D end of the digital potentiometer IC3 is connected with the P2.0 end of the singlechip IC1, the VH end of the digital potentiometer IC3 is connected with a connection terminal a, the VSS end of the digital potentiometer IC3 is grounded, the VCC end of the digital potentiometer IC3 is connected with a 5V power supply end, the CS end of the digital potentiometer IC3 is connected with the P2.2 end of the singlechip IC1, the VL end of the digital potentiometer IC3 is grounded, the VW end of the digital potentiometer IC3 is connected with the non-inverting input end of the amplifier P3, the inverting input end of the amplifier P3 is respectively connected with the output end of the amplifier P3 and one end of the capacitor C5, the other end of the capacitor C5 is connected with a resistor R10 and the movable end of the RT1 in series, the RT1 of the sliding amplifier P4, a connecting line between the slide rheostat RT1 and an inverting input end of the amplifier P4 is respectively connected with one end of a resistor R14 and one end of a resistor R15, an output end of the amplifier P4 is respectively connected with a base of a transistor Q3 and a base of a transistor Q4, an emitter of a transistor Q3 is connected with an emitter of a transistor Q4, a connecting line between an emitter of a transistor Q3 and an emitter of a transistor Q4 is respectively connected with one end of a resistor R11 and one end of a capacitor C6, the other end of a resistor R11 is grounded, the other end of a capacitor C6 is respectively connected with one end of a resistor R12, the other end of a resistor R14 at one end of a resistor R13 and a twelfth terminal of a transformer T1, the other end of a resistor R12 is connected with a collector of a transistor Q5, a base of a transistor Q5 is connected with a collector of a transistor Q5, an emitter of the transistor Q5 is connected with a +12V power supply, the base of the triode Q6 is connected with the collector of the triode Q4, the emitter of the triode Q6 is connected with the-12V power supply terminal, and the other end of the resistor R15 is connected with the seventh connection terminal of the transformer T1.
Preferably, the output delay circuit comprises a relay JDQ1 and an integrated chip IC4, a fifth connection terminal of the relay JDQ1 is connected in series with a fuse F1 and a second connection terminal of the transformer T1, a connection line between the fifth connection terminal of the relay JDQ1 and the fuse F1 is connected to a cathode of a diode D2, an eighth connection terminal of the relay JDQ1 is connected in series with a fuse F2 and a sixth connection terminal of the transformer T1, a connection line between the eighth connection terminal of the relay JDQ1 and the fuse F2 is connected to an anode of a diode D2, a fourth connection terminal of the relay JDQ1 is connected to a sixth connection terminal of the relay JDQ1, a third connection terminal of the relay JDQ1 is connected to a seventh connection terminal of the relay JDQ1, second connection terminals of the relay JDQ1 are connected to a third connection terminal of a diode D1 and an integrated chip IC4, respectively, and a cathode of the diode D1 is connected to a first connection terminal of the relay JDQ1, The first connecting terminal of the integrated chip IC4 and one end of the resistor R17 are connected and then grounded, the other end of the resistor R17 is connected with one end of the resistor R16, the other end of the resistor R16 is connected with one end of the capacitor C7, the second connecting terminal of the integrated chip IC4 and the sixth connecting terminal of the integrated chip IC4, the other end of the capacitor C7 is connected with the fourth connecting terminal of the integrated chip IC4 and the eighth connecting terminal of the integrated chip IC4, and then a therapeutic pulse magnetic field is output.
Preferably, the model of the single chip microcomputer IC1 is STC89C52, the model of the D/a conversion chip IC2 is DAC0832, the model of the triode Q2 is 8550, and the models of the amplifier P1 and the amplifier P2 are both LM 324.
Preferably, the model of the digital potentiometer IC3 is X9C104, and the models of the amplifier P1 and the amplifier P2 are both LM 324.
Preferably, the relay JDQ1 is of model HK19F, and the integrated chip IC4 is of model NE 555.
Compared with the prior art, the utility model following beneficial effect has:
the utility model relates to a control circuit for intermediate frequency bioelectricity physiotherapy equipment, include: the output end of the main control circuit outputs a therapeutic pulse magnetic field through the D/A conversion circuit, the amplification circuit and the output delay circuit in sequence; the utility model discloses utilize singlechip IC1 structure intermediate frequency waveform generator in the master control circuit 1, can produce wave forms such as sine wave, triangular wave, sawtooth wave, square wave, carry out digital analog conversion through DA converting circuit, carry out signal amplification through amplifier circuit, export by output delay circuit to the treatment electrode paster with user's skin contact, the utility model discloses can export various different treatment's physiotherapy signal, can make the intermediate frequency pulse of multichannel act on the user, make user's sense pulse change abundant with soft, body feel comfortable, physiotherapy effect good, the practicality is strong.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic circuit diagram of the main control circuit, the D/A conversion circuit, and the display circuit of the present invention;
fig. 3 is a schematic circuit diagram of the amplifying circuit of the present invention;
fig. 4 is a schematic circuit diagram of the output delay circuit of the present invention;
fig. 5 is a schematic circuit diagram of the power input circuit of the present invention;
FIG. 6 is a schematic circuit diagram of the voltage regulator circuit of the present invention;
in the figure: the display circuit comprises a main control circuit 1, a D/A conversion circuit 2, an amplifying circuit 3, an output delay circuit 4, a power supply circuit 5, a power supply input circuit 51, a voltage stabilizing circuit 52 and a display circuit 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, a control circuit for an intermediate frequency bioelectrical physiotherapy instrument, comprises: the main control circuit 1, the D/A conversion circuit 2, the amplifying circuit 3, the output delay circuit 4 and the power supply circuit 5, the output of the main control circuit 1 loops through the D/A conversion circuit 2, the amplifying circuit 3 and the output delay circuit 4 to output the therapeutic pulse magnetic field, the power supply circuit 5 provides electric energy for the main control circuit 1, the D/A conversion circuit 2, the amplifying circuit 3 and the output delay circuit 4, the control circuit for the intermediate frequency bioelectricity physiotherapy instrument further comprises a display circuit 6, and the display circuit 6 is connected with the output end of the main control circuit 1.
Specifically, the single chip microcomputer IC1 in the main control circuit 1 is used for constructing a medium-frequency waveform generator which can generate waveforms such as sine waves, triangular waves, sawtooth waves, square waves and the like, waveform signals of the single chip microcomputer IC1 are subjected to digital-to-analog conversion through the D/A conversion circuit 2, signal amplification is carried out through the amplifying circuit 3, the signals are output to a treatment electrode patch in contact with the skin of a user through the output delay circuit 4, and the output delay circuit 4 ensures the safety of the circuit. The utility model discloses can export the physiotherapy signal of various different treatment, can make the intermediate frequency pulse of multichannel act on the user, make the user feel that the pulse changes abundant with soft, body feel comfortable, physiotherapy effectual, the practicality is strong.
Specifically, waveforms generated by simulation of the singlechip IC1 are transmitted to the D/a conversion chip IC2 through the P0.0 end, the P0.1 end, the P0.2 end, the P0.3 end, the P0.4 end, the P0.5 end, the P0.6 end and the P0.7 end of the singlechip IC1, after digital-to-analog conversion is performed on the D/a conversion chip IC2, analog signals are transmitted to the VH end of the digital potentiometer IC3 through the connection terminal a, two-stage amplification processing is performed on the amplifier P1 and the amplifier P2, and the processed signals are transmitted to the fifth connection terminal and the eighth connection terminal of the relay JDQ1 of the output delay circuit 4, so that the biological physiotherapy instrument is subjected to delay output to a treatment electrode patch in contact with the skin of a user after being electrified, thereby ensuring the practical safety of the user and improving the safety of the biological physiotherapy instrument.
Further, as shown in fig. 2, the main control circuit 1 includes a single chip IC1, the model of the single chip IC1 is STC89C52, the D/a conversion circuit 2 includes a D/a conversion chip IC2, a transistor Q2, an amplifier P1, and an amplifier P2, and the display circuit 6 includes a display interface JP 1; the model of the D/A conversion chip IC2 is DAC0832, the model of the triode Q2 is 8550, and the models of the amplifier P1 and the amplifier P2 are LM 324.
P0.0 end, P0.1 end, P0.2 end, P0.3 end, P0.4 end, P0.5 end, P0.6 end and P0.7 end of the singlechip IC1 are respectively connected with D10 end, D11 end, D12 end, D13 end, D14 end, D15 end, D16 end and D17 end of a D/A conversion chip IC2, P3.4 end of the singlechip IC1 is connected with the base of a triode Q1 after being connected with a resistor R1 in series, the emitter of the triode Q1 is connected with a power supply end, VREF 1 collector of the triode Q1 is connected with a horn F1 in series and then grounded, VREF end of the D/A conversion chip IC1 is connected with the collector of the triode Q1 after being connected with VREF, the emitter of the triode Q1 is connected with VREF 5V, the base of the triode Q1 is connected with P3.72 end of the singlechip IC1 in series, P0.6 end and P0.7 end of the P0.72A conversion chip, and P72 end of the D/A conversion chip IC 72 are connected with a resistor R1 and D1 after being connected with a chip, the RFA conversion chip of the RFA conversion chip, VREF 1, the RFA, One end of a resistor R8 is connected, the inverting input end of an amplifier P1 is connected with the IOUT1 end of a D/A conversion chip IC2, the non-inverting input end of an amplifier P1 is grounded, the other end of a resistor R8 is connected with the non-inverting input end of an amplifier P2, the inverting input end of an amplifier P2 is respectively connected with the output end of the amplifier P2 and one end of a capacitor C4, the other end of a capacitor C4 is connected with a resistor R9 in series and then grounded, a connecting line between the capacitor C4 and the resistor R9 is connected with a connecting terminal a, a first connecting terminal of the display interface JP1 is grounded, a second connecting terminal of the display interface JP1 is connected with a 5V power supply terminal, and a fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fifteenth, thirteenth, fifteenth, eleventh, or twelfth connecting terminals of the display interface JP, The sixteenth connecting terminal is respectively connected with the P2.7 end, the P2.6 end, the P2.5 end, the P1.1 end, the P1.2 end, the P1.3 end, the P1.4 end, the P1.5 end, the P1.6 end, the P1.7 end, the P3.1 end and the P3.0 end of the singlechip IC 1; specifically, the model is STC89C 52's singlechip IC1, can realize the output of intermediate frequency signal of telecommunication, and operating frequency is intermediate frequency carrier 2-8KHz, the utility model discloses an intermediate frequency signal generator is: the singlechip IC1 is used for constructing an intermediate frequency waveform generator which can generate waveforms such as sine waves, triangular waves, sawtooth waves, square waves and the like, and a corresponding waveform signal can be generated by programming the singlechip IC1 through C language; the DAC0832 model is D/A converting circuit 2 adopts double buffering mode, that is, the input register receives data, then the output data of the input register is controlled to the DAC register, that is, the input data is latched twice, the waveform signal is processed by the D/A converting circuit 2 to generate high stable analog signal with programmable control frequency, phase and amplitude; the singlechip IC1 is connected with a man-machine interaction display screen through a display interface JP 1.
Further, as shown in fig. 3, the amplifying circuit 3 includes a digital potentiometer IC3, an amplifier P3, and an amplifier P4, wherein the model of the digital potentiometer IC3 is X9C104, and the models of the amplifier P3 and the amplifier P4 are all LM 324.
Specifically, the model is a novel CMOS digital and analog mixed signal processing integrated circuit of X9C104, the digital potentiometer can adjust the electric quantity output, the digital potentiometer is controlled by digital input to generate an analog quantity output, the maximum value of the tap current can be from hundreds of microamperes to a few milliamperes according to the difference of the digital potentiometer, and the digital potentiometer adopts a numerical control mode to adjust the resistance value, so that the integrated circuit has the remarkable advantages of flexible use, high adjustment precision, no contact, low noise, less possibility of contamination, vibration resistance, interference resistance, small volume, long service life and the like; the amplifier P1 and the amplifier P2 with the model LM324, four operational amplifiers with true differential inputs have true differential inputs, compared with the standard operational amplifier in single power supply application, the amplifier P1, the amplifier P2, the amplifier P3 and the amplifier P4 can convert current signals into voltage signals and amplify the voltage signals, can work under the power supply of 3.0 volts or 32 volts, the common mode input range comprises a negative power supply, thereby eliminating the necessity of adopting an external biasing element in many applications, the transformer T1 is an isolation transformer, after the physiotherapy instrument is electrified, the primary side and the secondary side are completely insulated, the loop is also isolated, the characteristic of large high-frequency loss of an iron core is utilized, thereby inhibiting high-frequency noise waves from being transmitted into a control loop, the secondary is suspended to the ground by the isolation transformer, and only the differential amplifier can be used in the smaller power supply range, And on the occasion of short circuit, the capacitance-to-ground current of the system is not small enough to cause injury to human bodies, so that the personal safety is protected and the dangerous voltage is isolated. Further improving the safety.
The INC end of the digital potentiometer IC3 is connected with the P2.1 end of the singlechip IC1, the U/D end of the digital potentiometer IC3 is connected with the P2.0 end of the singlechip IC1, the VH end of the digital potentiometer IC3 is connected with the connecting terminal a, the VSS end of the digital potentiometer IC3 is grounded, the VCC end of the digital potentiometer IC3 is connected with the 5V power end, the CS end of the digital potentiometer IC3 is connected with the P2.2 end of the singlechip IC1, the VL end of the digital potentiometer IC3 is grounded, the VW end of the digital potentiometer IC3 is connected with the non-inverting input end of the amplifier P3, the inverting input end of the amplifier P3 is connected with the output end of the amplifier P3 and one end of the capacitor C5 respectively, the other end of the capacitor C5 is connected with the resistor R10 in series and the active end of the sliding rheostat RT1, the fixed end of the sliding rheostat RT1 is connected with the inverting input end of the amplifier P4, the inverting input end of the sliding rheostat RT1 is connected with the inverting input, One end of a resistor R15 is connected, an output end of an amplifier P4 is respectively connected with a base of a triode Q3 and a base of a triode Q4, an emitter of a triode Q3 is connected with an emitter of a triode Q4, a connecting line between the emitter of the triode Q3 and the emitter of a triode Q4 is respectively connected with one end of a resistor R11 and one end of a capacitor C6, the other end of the resistor R11 is grounded, the other end of the capacitor C6 is respectively connected with one end of a resistor R12, the other end of a resistor R14 of a resistor R13 and a twelfth connection terminal of a transformer T1, the other end of the resistor R12 is connected with a collector of a triode Q5, the base of the triode Q5 is connected with a collector of a triode Q3, the emitter of the triode Q5 is connected with a power supply terminal of +12V, the other end of the resistor R13 is connected with a collector of a triode Q13, the base of the triode Q13 is connected with a collector of, the other end of the resistor R15 is connected with a seventh connection terminal of the transformer T1; the model of the triode Q3 and the model of the triode Q4 are 8550, and the model of the triode Q5 and the model of the triode Q6 are TIP 41.
Further, as shown in fig. 4, the output delay circuit 4 includes a relay JDQ1 and an integrated chip IC4, wherein the relay JDQ1 is of a type HK19F, and the integrated chip IC4 is of a type NE 555.
A fifth connection terminal of the relay JDQ1 is connected in series with a fuse F1 and a second connection terminal of a transformer T1, a connecting line between the fifth connection terminal of the relay JDQ1 and a fuse F1 is connected with a cathode of a diode D2, an eighth connection terminal of the relay JDQ1 is connected in series with a fuse F2 and a sixth connection terminal of a transformer T1, a connecting line between the eighth connection terminal of the relay JDQ1 and a fuse F2 is connected with an anode of a diode D2, a fourth connection terminal of the relay JDQ1 is connected with a sixth connection terminal of the relay JDQ1, a third connection terminal of the relay JDQ1 is connected with a seventh connection terminal of the relay JDQ1, a second connection terminal of the relay JDQ1 is connected with a cathode of a diode D1 and a third connection terminal of an integrated chip IC4, an anode of a diode D1 is connected with a first connection terminal of a relay JDQ1, a first connection terminal of an integrated chip IC4, a first connection terminal of an integrated chip IC 17 and then, the other end of the resistor R17 is connected with one end of the resistor R16, the other end of the resistor R16 is connected with one end of the capacitor C7, the second connecting terminal of the integrated chip IC4 and the sixth connecting terminal of the integrated chip IC4 respectively, the other end of the capacitor C7 is connected with the fourth connecting terminal of the integrated chip IC4 and the eighth connecting terminal of the integrated chip IC4 respectively and then outputs a therapeutic pulse magnetic field, the model of the diode D1 is IN4148, and the model of the diode D2 is SMBJ54 CA.
The power supply circuit 5 includes a power input circuit 51 and a voltage stabilizing circuit 52, as shown IN fig. 5, the power input circuit includes a voltage regulator IC7, a power socket JP201, a battery socket JP202, and a power switch JP203, the power input circuit is connected to the commercial power through the power socket JP201, a first connection terminal of the power socket JP201 is respectively connected to one end of a resistor R200, one end of a capacitor C201, an anode of a diode D202, and an IN terminal of a voltage regulator IC7, the other end of the resistor R200 is connected to the anode of a light emitting diode LED201, the cathode of the light emitting diode LED201 is connected to a second connection terminal of the power socket JP201, the other end of the capacitor C201, the anode of the diode IC202, one end of the resistor R205, the cathode of the light emitting diode LED202, and a second connection terminal of the battery socket JP202, and then grounded, the cathode of the diode IC202 is respectively connected to an ADJ terminal of the voltage regulator IC7 and one end of the resistor R203, The sliding end of the sliding rheostat R208 is connected, the fixed end of the sliding rheostat R208 is connected with the OUT end of the voltage stabilizer IC7 after being sequentially connected with the resistor R204, the resistor R202 and the resistor R201 in series, a connecting line between the resistor R204 and the resistor R202 is respectively connected with the other end of the resistor R203 and one end of the resistor R207, the other end of the resistor R207 is respectively connected with a connecting line between the resistor R202 and the resistor R201 and the anode of the diode D201, the cathode of the diode D201 is respectively connected with one end of the resistor R206, the anode of the diode D203 and the first connecting terminal of the power socket JP201, the other end of the resistor R206 is connected with the anode of the light emitting diode LED202, the cathode of the diode D203 is respectively connected with the cathode of the diode D202 and the third connecting terminal of the power switch JP203, and the second connecting terminal of the power switch JP203 and the first connecting terminal of the power.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a control circuit for intermediate frequency bio-electricity physiotherapy equipment which characterized in that: the method comprises the following steps: the therapeutic pulse magnetic field is output by the output end of the main control circuit sequentially through the D/A conversion circuit, the amplification circuit and the output delay circuit, and the power supply circuit provides electric energy for the main control circuit, the D/A conversion circuit, the amplification circuit and the output delay circuit.
2. The control circuit for intermediate frequency bioelectrical physiotherapy instrument according to claim 1, wherein: the display circuit is connected with the output end of the main control circuit.
3. The control circuit for intermediate frequency bioelectrical physiotherapy instrument according to claim 2, wherein: the main control circuit comprises a singlechip IC1, the D/A conversion circuit comprises a D/A conversion chip IC2, a triode Q2, an amplifier P1 and an amplifier P2, and the display circuit comprises a display interface JP 1;
p0.0 end, P0.1 end, P0.2 end, P0.3 end, P0.4 end, P0.5 end, P0.6 end and P0.7 end of the singlechip IC1 are respectively connected with D10 end, D11 end, D12 end, D13 end, D14 end, D15 end, D16 end and D17 end of a D/A conversion chip IC2, P3.4 end of the singlechip IC1 is connected with the base of a triode Q1 after being connected with a resistor R1 in series, the emitter of the triode Q1 is connected with a power supply end, VREF 1 collector of the triode Q1 is connected with a horn F1 in series and then grounded, VREF end of the D/A conversion chip IC1 is connected with the collector of the triode Q1 after being connected with VREF, the emitter of the triode Q1 is connected with VREF 5V, the base of the triode Q1 is connected with P3.72 end of the singlechip IC1 in series, P0.6 end and P0.7 end of the P0.72A conversion chip, and P72 end of the D/A conversion chip IC 72 are connected with a resistor R1 and D1 after being connected with a chip, the RFA conversion chip of the RFA conversion chip, VREF 1, the RFA, One end of a resistor R8 is connected, the inverting input end of an amplifier P1 is connected with the IOUT1 end of a D/A conversion chip IC2, the non-inverting input end of an amplifier P1 is grounded, the other end of a resistor R8 is connected with the non-inverting input end of an amplifier P2, the inverting input end of an amplifier P2 is respectively connected with the output end of the amplifier P2 and one end of a capacitor C4, the other end of a capacitor C4 is connected with a resistor R9 in series and then grounded, a connecting line between the capacitor C4 and the resistor R9 is connected with a connecting terminal a, a first connecting terminal of the display interface JP1 is grounded, a second connecting terminal of the display interface JP1 is connected with a 5V power supply terminal, and a fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fifteenth, thirteenth, fifteenth, eleventh, or twelfth connecting terminals of the display interface JP, The sixteenth connecting terminal is respectively connected with the P2.7 end, the P2.6 end, the P2.5 end, the P1.1 end, the P1.2 end, the P1.3 end, the P1.4 end, the P1.5 end, the P1.6 end, the P1.7 end, the P3.1 end and the P3.0 end of the singlechip IC 1.
4. The control circuit for intermediate frequency bioelectrical physiotherapy instrument according to claim 3, wherein: the amplifying circuit comprises a digital potentiometer IC3, an amplifier P3 and an amplifier P4, wherein an INC end of the digital potentiometer IC3 is connected with a P2.1 end of a singlechip IC1, a U/D end of the digital potentiometer IC3 is connected with a P2.0 end of the singlechip IC1, a VH end of the digital potentiometer IC3 is connected with a connecting terminal a, a VSS end of the digital potentiometer IC3 is grounded, a VCC end of the digital potentiometer IC3 is connected with a 5V power supply end, a CS end of the digital potentiometer IC3 is connected with a P2.2 end of the singlechip IC1, a VL end of the digital potentiometer IC3 is grounded, a VW end of the digital potentiometer IC3 is connected with a non-inverting input end of the amplifier P3, inverting input ends of the amplifier P3 are respectively connected with an output end of an amplifier P3 and one end of a capacitor C5, the other end of the capacitor C5 is connected with a resistor R10 and a movable end of a rheostat RT1 in series, a fixed end of the sliding resistor RT 72 is connected with a fixed end of the sliding amplifier P1, and an inverting input end of the sliding resistor P1 is connected with an inverting input, One end of a resistor R15 is connected, an output end of an amplifier P4 is respectively connected with a base of a triode Q3 and a base of a triode Q4, an emitter of a triode Q3 is connected with an emitter of a triode Q4, a connecting line between the emitter of the triode Q3 and the emitter of a triode Q4 is respectively connected with one end of a resistor R11 and one end of a capacitor C6, the other end of the resistor R11 is grounded, the other end of the capacitor C6 is respectively connected with one end of a resistor R12, the other end of a resistor R14 of a resistor R13 and a twelfth connection terminal of a transformer T1, the other end of the resistor R12 is connected with a collector of a triode Q5, the base of the triode Q5 is connected with a collector of a triode Q3, the emitter of the triode Q5 is connected with a power supply terminal of +12V, the other end of the resistor R13 is connected with a collector of a triode Q13, the base of the triode Q13 is connected with a collector of, the other end of the resistor R15 is connected to the seventh connection terminal of the transformer T1.
5. The control circuit for intermediate frequency bioelectrical physiotherapy instrument according to claim 4, wherein: the output delay circuit comprises a relay JDQ1 and an integrated chip IC4, a fifth connecting terminal of the relay JDQ1 is connected with a fuse F1 in series and is connected with a second connecting terminal of a transformer T1, a connecting line between the fifth connecting terminal of the relay JDQ1 and the fuse F1 is connected with the cathode of a diode D2, an eighth connecting terminal of the relay JDQ1 is connected with a fuse F2 in series and is connected with a sixth connecting terminal of the transformer T1, a connecting line between the eighth connecting terminal of the relay JDQ1 and the fuse F2 is connected with the anode of a diode D2, a fourth connecting terminal of the relay JDQ1 is connected with a sixth connecting terminal of the relay JDQ1, a third connecting terminal of the relay JDQ1 is connected with a seventh connecting terminal of the relay JDQ1, a second connecting terminal of the relay JDQ1 is connected with the cathode of a diode D1 and the third connecting terminal of the integrated chip IC4, and the anode of the diode D1 is connected with the first connecting terminal of the relay JDQ, The first connecting terminal of the integrated chip IC4 and one end of the resistor R17 are connected and then grounded, the other end of the resistor R17 is connected with one end of the resistor R16, the other end of the resistor R16 is connected with one end of the capacitor C7, the second connecting terminal of the integrated chip IC4 and the sixth connecting terminal of the integrated chip IC4, the other end of the capacitor C7 is connected with the fourth connecting terminal of the integrated chip IC4 and the eighth connecting terminal of the integrated chip IC4, and then a therapeutic pulse magnetic field is output.
6. The control circuit for intermediate frequency bioelectrical physiotherapy instrument according to claim 3, wherein: the model of the singlechip IC1 is STC89C52, the model of the D/A conversion chip IC2 is DAC0832, the model of the triode Q2 is 8550, and the models of the amplifier P1 and the amplifier P2 are both LM 324.
7. The control circuit for intermediate frequency bioelectrical physiotherapy instrument according to claim 4, wherein: the model of the digital potentiometer IC3 is X9C104, and the models of the amplifier P1 and the amplifier P2 are LM 324.
8. The control circuit for intermediate frequency bioelectrical physiotherapy instrument according to claim 2, wherein: the model of the relay JDQ1 is HK19F, and the model of the integrated chip IC4 is NE 555.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020821590.5U CN211701999U (en) | 2020-05-18 | 2020-05-18 | Control circuit for intermediate-frequency bioelectricity physiotherapy instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020821590.5U CN211701999U (en) | 2020-05-18 | 2020-05-18 | Control circuit for intermediate-frequency bioelectricity physiotherapy instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211701999U true CN211701999U (en) | 2020-10-16 |
Family
ID=72784407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020821590.5U Active CN211701999U (en) | 2020-05-18 | 2020-05-18 | Control circuit for intermediate-frequency bioelectricity physiotherapy instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211701999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115765689A (en) * | 2023-01-10 | 2023-03-07 | 北京市金华医疗器械研究所 | Intermediate frequency pulse circuit and therapeutic instrument |
-
2020
- 2020-05-18 CN CN202020821590.5U patent/CN211701999U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115765689A (en) * | 2023-01-10 | 2023-03-07 | 北京市金华医疗器械研究所 | Intermediate frequency pulse circuit and therapeutic instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2072609A1 (en) | Apparatus and method for transcranial electrotherapy | |
| CN202751692U (en) | Portable multi-physiological-parameter feedback biological stimulator | |
| CN108096703B (en) | Multi-channel transcranial electrical stimulation device and method thereof | |
| CN102058396B (en) | Handheld cortex egersimeter and cortex electrostimulation | |
| CN101693137A (en) | Method for electric wave massage by utilizing music player and electric wave massage device | |
| CN211701999U (en) | Control circuit for intermediate-frequency bioelectricity physiotherapy instrument | |
| Wang et al. | Design of a bone-guided cochlear implant microsystem with monopolar biphasic multiple stimulations and evoked compound action potential acquisition and its in vivo verification | |
| CN104740766A (en) | Against-the-ear transcranial current stimulator | |
| CN107158564A (en) | A kind of external diaphragm pacemaker of the medium frequency electric stimulation of low frequency modulations | |
| CN202459848U (en) | Impulse electronic therapeutic meter | |
| CN104399182A (en) | Wearable electrical median nerve stimulation coma awakening system and communication system | |
| CN2910252Y (en) | High potential therapeutical device | |
| CN105363127A (en) | Sacral nerve stimulation generator | |
| Wang et al. | An electrical muscle simulator based on functional electrical stimulation | |
| CN209060388U (en) | Ultrasonic therapy device | |
| CN203355131U (en) | Medical analgesia instrument based on WEINVIEW and Atmega128 singlechip | |
| CN202569206U (en) | Electronic music physical therapy device | |
| CN201662991U (en) | Music player and electric wave massage device | |
| CN221309318U (en) | Functional electric stimulation device for bidirectional nerve interface | |
| CN2219115Y (en) | Pulse medicine therapeutic apparatus for myopia | |
| CN2362518Y (en) | Therapeutic instrument capable of adjusting human biological rhythm | |
| CN110038217A (en) | A kind of wearable intelligent wireless posterior tibial nerve electric stimulation | |
| CN207041742U (en) | One kind analgesia chip | |
| CN214596820U (en) | Transcranial electrical stimulation system | |
| CN217938913U (en) | Electrical stimulation device and electrical stimulation instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |