CN109999342B - Device for adjusting stimulating electric pulse for stimulating human body - Google Patents
Device for adjusting stimulating electric pulse for stimulating human body Download PDFInfo
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- CN109999342B CN109999342B CN201910216008.4A CN201910216008A CN109999342B CN 109999342 B CN109999342 B CN 109999342B CN 201910216008 A CN201910216008 A CN 201910216008A CN 109999342 B CN109999342 B CN 109999342B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/3603—Control systems
- A61N1/36034—Control systems specified by the stimulation parameters
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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Abstract
The invention provides a device for adjusting stimulation electric pulse for stimulating human body, which comprises a main control circuit, a control circuit and a control circuit, wherein the main control circuit is used for generating pulse signals according to external control instructions; the voltage regulating circuit is used for enabling the output voltage to be in a first voltage range to a second voltage range; and the time-sharing multiplexing circuit is used for receiving the output voltage of the voltage regulating circuit and outputting electric stimulation signals through different stimulation electrodes in different time periods under the control of the main control circuit. When the invention is used, the amplitude of the input pulse can be kept unchanged, and the power supply voltage of the pulse driving circuit is regulated, so that the output voltage is regulated, and the purpose of regulating the pulse intensity is achieved. Therefore, the constant-current type pulse driving circuit has no stinging feeling, has no defects of complex circuit structure and high cost, and improves the working efficiency of the pulse driving circuit. And the digital adjustable potentiometer is applied to the circuit for adjusting the power supply voltage, so that the whole adjusting circuit is further simplified, the reliability of the circuit is increased, and the adjusting function of the circuit is enhanced.
Description
Technical Field
The invention belongs to an electric pulse adjusting circuit, and particularly relates to a device for adjusting a stimulating electric pulse for stimulating a human body.
Background
The electric stimulation refers to applying a certain current to the tissue cells so that the tissue cells generate physiological responses, and the degree of the responses is closely related to the form of the stimulated tissue and the form of the stimulation voltage.
The electrical pulse intensity adjustment of the stimulus voltage generally has two ways:
1. the power supply voltage of the pulse driving amplifier is unchanged, the highest voltage is maintained, the amplitude of the input pulse is unchanged, and the amplitude of the pulse output current of the amplifier is regulated, so that the aim of regulating the pulse intensity is fulfilled. The stimulation to the human body is large due to the large current. This regulation is essentially a constant current output. And when constant current is output and the circuit is opened, the voltage at the two ends of the electrode is very high. Therefore, when the electrode is not sufficiently contacted with the human body, that is, the contact resistance is large, the electrode voltage is high, and a tingling sensation is easily generated to the human body.
2. The power supply voltage of the pulse driving amplifier is unchanged and kept the highest, and the amplitude of the input pulse is regulated, so that the amplitude of the output pulse voltage of the amplifier is changed, and the aim of regulating the pulse intensity is fulfilled. The regulation mode is essentially constant voltage output, and has no disadvantage of constant current output, namely, when the electrode contact resistance is large, the electrode voltage is high, and the pricking sensation is easy to generate. However, the circuit structure of the adjusting mode is complex, the volume is large, the cost is high, and the improvement of the reliability is not easy.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a device for adjusting stimulating electrical pulses for stimulating a human body, so as to solve the drawbacks of the conventional voltage adjustment method that the human body is prone to be painful.
To achieve the above and other related objects, the present invention provides an apparatus for adjusting a stimulating electrical pulse for stimulating a human body, the apparatus comprising:
the main control circuit is used for generating a pulse signal according to an external control instruction;
the voltage regulating circuit is used for enabling the output voltage to be in a first voltage range to a second voltage range;
and the time-sharing multiplexing circuit is used for receiving the output voltage of the voltage regulating circuit and outputting electric stimulation signals through different stimulation electrodes in different time periods under the control of the main control circuit.
Optionally, the apparatus further comprises:
and the channel detection circuit is used for detecting whether current flows through the different stimulation electrodes.
Optionally, the voltage regulating circuit includes:
the boost module is used for converting low voltage into high voltage;
the filtering module is used for carrying out filtering treatment on the high voltage;
the adjusting module is used for adjusting the voltage after the filtering processing and enabling the output voltage to be in a range from the first voltage to the second voltage.
Optionally, the adjustment module includes:
the first input module is used for inputting a first voltage to a first input end of the differential amplification module;
the second input module is used for inputting a second voltage to a second input end of the differential amplification module;
the first switch module is used for controlling the on-off of the second switch module;
and the second switch module is used for controlling the on-off of the regulating module.
Optionally, the second input module includes a voltage dividing circuit, and an output end of the voltage dividing circuit is connected to the second input end of the differential amplifying module.
Optionally, the voltage dividing circuit comprises at least a digital potentiometer.
Optionally, the time division multiplexing circuit includes a multiplexing time division multiplexing unit, each time division multiplexing unit includes a pulse driving circuit, and an output end of one pulse driving circuit is connected with a sampling circuit.
Optionally, the sampling circuit includes a sampling resistor.
Optionally, the apparatus further comprises an amplifying circuit for amplifying the output current of the sampling circuit.
As described above, the device for adjusting a stimulating electrical pulse for stimulating a human body of the present invention has the following advantageous effects:
when the invention is used, the amplitude of the input pulse can be kept unchanged, and the power supply voltage of the pulse driving circuit is regulated, so that the output voltage is regulated, and the purpose of regulating the pulse intensity is achieved. Therefore, the constant-current type pulse driving circuit has no stinging feeling, has no defects of complex circuit structure and high cost, and improves the working efficiency of the pulse driving circuit. And the digital adjustable potentiometer is applied to the circuit for adjusting the power supply voltage, so that the whole adjusting circuit is further simplified, the reliability of the circuit is increased, and the adjusting function of the circuit is enhanced.
Drawings
FIG. 1 is a schematic block diagram of an apparatus for regulating stimulating electrical pulses that stimulate a human body in accordance with the present invention;
FIG. 2 is a circuit diagram of a voltage regulating circuit;
FIG. 3 is a circuit diagram of a BTL full bridge pulse driver circuit;
fig. 4 is a circuit diagram of an amplifying circuit.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples.
The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
The invention provides a device for adjusting stimulation electric pulse for stimulating human body, which comprises a main control circuit, a voltage regulating circuit and a time division multiplexing circuit, wherein the main control circuit is connected with the voltage regulating circuit;
the main control circuit is used for generating a pulse signal according to an external control instruction; the main control circuit is a singlechip.
The voltage regulating circuit is used for enabling the output voltage to be in a first voltage range to a second voltage range;
and the time-sharing multiplexing circuit is used for receiving the output voltage of the voltage regulating circuit and outputting electric stimulation signals through different stimulation electrodes in different time periods under the control of the main control circuit.
In one embodiment, the apparatus further comprises:
and the channel detection circuit is used for detecting whether current flows through the different stimulation electrodes. When no current flow is detected, the corresponding stimulation electrode is turned off.
In one embodiment, the voltage regulating circuit comprises a boosting module, a filtering module and a regulating module;
the boost module is used for converting low voltage into high voltage;
the filtering module is used for carrying out filtering treatment on the high voltage;
the adjusting module is used for adjusting the voltage after the filtering processing and enabling the output voltage to be in a range from the first voltage to the second voltage.
In an embodiment, the adjusting module includes a first input module, a second input module, a first switch module, and a second switch module;
the first input module is used for inputting a first voltage to a first input end of the differential amplification module;
the second input module is used for inputting a second voltage to a second input end of the differential amplification module;
the first switch module is used for controlling the on-off of the second switch module;
and the second switch module is used for controlling the on-off of the regulating module.
In an embodiment, the second input module includes a voltage dividing circuit, and an output end of the voltage dividing circuit is connected to the second input end of the differential amplifying module. The voltage dividing circuit at least comprises a digital potentiometer.
Specifically, as shown in fig. 2, the voltage regulating circuit includes a DC-DC power management chip MC34063; the SWC pin of MC34063 is connected with first inductance L1, the other end of first inductance L1 is connected with the positive pole of first diode D1, the negative pole of first diode D1 is connected with one end of second inductance L2, the other end of second inductance L2 is connected with one end of sixth capacitance C6, the other end of sixth capacitance C6 is grounded, the SWE pin of MC34063 is respectively connected with the positive pole of second diode D2, one end of third resistor R3, the base of first triode Q1, the other end of third resistor R3 is grounded, the collector of first triode Q1 is grounded, the emitter is connected with the negative pole of second diode D2, the negative pole of second diode D2 is also connected with the grid of first MOS tube Q2, the drain of first MOS tube Q2 is connected with the positive pole of first diode D1, the source of first MOS tube Q2 is grounded; the F.B pole of MC34063 is grounded through second resistance R2, and is connected with fifth electric capacity C5 through fourth resistance R4 simultaneously, and third diode D3 is still parallelly connected at the both ends of fifth electric capacity C5 and the positive pole ground of third diode D3, and the negative pole is connected the negative pole of fifth electric capacity C5, first diode D1 respectively.
The voltage regulating circuit further comprises a differential amplifying circuit, the differential amplifying circuit comprises an eighth resistor R8, a ninth resistor R9, a fifth triode Q5, a sixth triode Q6 and an eleventh resistor R11, wherein a reference voltage is input into the base electrode of the fifth triode Q5, the base electrode of the fifth triode Q5 is connected with one end of the second inductor L2 through the seventh resistor R7, the base electrode of the fifth triode Q5 is grounded through the eleventh resistor R11 after being connected with the base electrode of the sixth triode Q6, the collector electrode of the fifth triode Q5 is connected with the second inductor L2 through the eighth resistor R8, and the collector electrode of the sixth triode Q6 is connected with the second inductor L2 through the ninth resistor R9. The base electrode of the sixth triode Q6 is connected with one end of a seventh capacitor C7, the other end of the seventh capacitor C7 is connected with the grid electrode of a second MOS tube Q4, the drain electrode of the second MOS tube is connected with a second inductor L2, and the source electrode is used as an output end. The voltage regulating circuit further comprises a third triode Q3, the emitter of the third triode Q3 is grounded, the base electrode of the third triode Q3 is connected with the cathode of a fourth diode D4 through a sixth resistor R6, the anode of the fourth diode D4 is grounded, and the base electrode of the third triode Q3 is connected with a power supply through a fifth resistor R5. The collector of the third triode Q3 is connected with the collector of the sixth triode Q6 and is also connected with the grid electrode of the second MOS tube Q4. The base electrode of the sixth triode Q6 is connected with the sliding end of the digital potentiometer, one end of the tenth resistor R10 is connected with the source electrode of the second MOS tube, the other end of the tenth resistor R10 is connected with the high end of the digital potentiometer, the base electrode of the fifth diode D5 is connected with the negative electrode of the fifth diode D5, and the positive electrode of the fifth diode D5 is grounded. The low end of the digital potentiometer is grounded through a twelfth resistor R12. The fourth diode D4 and the fifth diode D5 are overvoltage protection diodes.
As shown in fig. 2, the voltage of two lithium batteries is input to the left end of the circuit, which is about 8.4V. The fifth capacitor C5, the second inductor L2 and the sixth capacitor C6 form a pi-type filter through the boost and voltage stabilizing management control of the power management chip U1, and PWM ripples are filtered; the voltage across the third diode D3 or the sixth capacitor C6 reaches a stable dc voltage of 64V. The third diode D3 is a TVS overvoltage protection diode. The voltage clamp position at the two ends of the third diode D3 is within 65V.
The voltage reference output chip U2, the high voltage withstand NPN fifth triode Q5, the sixth triode Q6, the power NMOS tube Q2, the digital potentiometer U3, peripheral resistors, capacitors and other devices form an adjustable voltage stabilizing and adjusting circuit. The fourth diode D4 and the fifth diode D5 are overvoltage protection diodes. The third triode Q3 is an output voltage cut-off switch, if the input KHV2 of the third triode Q3 is high level, the third triode Q3 is conducted, the voltage-stabilizing power supply adjusting tube-the second MOS tube Q4 is cut off, and the power supply output HV2 outputs 0V; if KHV2 is low, the third triode Q3 is turned off, the second MOS transistor Q4 is turned on, the power supply outputs HV2 output voltage, and the specific output value is determined by the arrangement of the differential amplifier, the voltage reference U2 and the digital potentiometer U3, which are formed by the fifth triode Q5 and the sixth triode Q6. The seventh capacitor C7 is a frequency compensation capacitor of the voltage adjusting circuit. The capacitor greatly reduces the self-excitation of the voltage regulating circuit and improves the stability and reliability of the circuit.
U3 is connected with the MCU through SPI bus (SCK, SCI, CS _2 in the figure), and the MCU sets the voltage dividing ratio of the U3 digital potentiometer, thereby adjusting the output voltage of the power supply output HV 2. The voltage regulating range can reach 5V-64V.
In an embodiment, the time division multiplexing circuit includes multiple time division multiplexing units, each time division multiplexing unit includes a pulse driving circuit, and an output end of one of the pulse driving circuits is connected with a sampling circuit. The sampling circuit includes a sampling resistor.
Specifically, as shown in fig. 3, the time-division multiplexing unit includes a seventh triode Q7 to a twelfth triode Q12, where a collector of the seventh triode Q7 is connected with an emitter and a collector of the ninth triode Q9; the emitter of the seventh triode Q7 is connected with the emitter of the eighth triode Q8, the base of the seventh triode Q7 is connected with the base of the eleventh triode Q11, the base of the eighth triode Q8 is connected with the base of the thirteenth triode Q10, the collector of the eighth triode Q8 is connected with the base of the twelfth triode Q12, the collector of the ninth triode Q9 is connected with the collector of the thirteenth triode Q10, the emitter of the thirteenth triode Q10 is connected with the emitter of the eleventh triode Q11, and the collector of the eleventh triode Q11 is connected with the collector of the twelfth triode Q12.
The base electrode of the seventh triode Q7 is connected with the singlechip through a thirteenth resistor R13, and the connecting end of the singlechip connected with the thirteenth resistor R13 is connected with the base electrode of the eleventh triode Q11 through a fourteenth resistor R14; the collector of the seventh triode Q7 is connected with the base electrode of the ninth triode Q9 through a seventeenth resistor R17, and a nineteenth resistor R19 is connected in parallel between the base electrode and the collector electrode of the ninth triode Q9; the base electrode of the eighth triode Q8 is connected with the singlechip through a sixteenth resistor R16, and the connecting end of the singlechip which is made up with the sixteenth resistor R16 is connected with the base electrode of the thirteenth triode Q10 through a fifteenth resistor R15; the collector of the eighth triode Q8 is connected with the base electrode of the twelfth triode Q12 through an eighteenth resistor R18, and a twentieth resistor R20 is connected between the base electrode and the emitter electrode of the twelfth triode Q12 in parallel.
Since the intensity of the pulses applied to the human body depends on the product of three factors: 1. the pulse width (unit: us), which is set by the singlechip, is determined; 2. pulse voltage amplitude; 3. the current through the body is pulsed. Therefore, only the voltage amplitude value of the pulse output cannot completely and comprehensively measure the intensity of the electrode pulse applied to the human body. Therefore, measurement of the electrode output current is critical to determine the pulse intensity actually output to the human body. Therefore, the connection terminal of the tenth triode Q10 and the eleventh triode Q11 is connected with the collecting resistor R21.
In one embodiment, the apparatus further comprises an amplifying circuit for amplifying the output current of the sampling circuit.
As shown in fig. 3, the amplifying circuit includes twenty-first to twenty-fifth resistors R21 to R25, an operational amplifier, and a ninth capacitor C9, wherein a positive input terminal of the operational amplifier is connected to an emitter of the thirteenth diode Q10 through the twenty-first resistor R21, a negative input terminal of the operational amplifier is grounded through the twenty-third resistor R23, the ninth capacitor C9 is connected in parallel between a negative input terminal and an output terminal of the operational amplifier, and the twenty-fourth resistor R24 is connected in parallel with the ninth capacitor C9. The positive input end of the operational amplifier is grounded through a twenty-second resistor R22, and the output end of the operational amplifier is connected with the singlechip through a twenty-fifth resistor R25.
As shown in fig. 4, the pulse drives the output current through the sampling resistor R21 to ground GND. The voltage drop across the twenty-first resistor R21 is usually small, and therefore, the voltage needs to be amplified by a differential amplifier formed by an operational amplifier, and the voltage is outputted to the a/D input of the single chip microcomputer for data processing by the output end ad_ai2 of the operational amplifier. Action of the ninth capacitor C9: the output bandwidth of the differential amplifier is reduced, and the signal-to-noise ratio (S/N) of the differential amplifier is improved in a low frequency range, so that the electrode current measurement is more accurate. To simplify the design and improve the performance of the differential amplifier, the differential amplifier employs a Rail-to-Rail OP Amp (Rail-to-Rail OP Amp) circuit powered by a single power supply.
When the invention is used, the amplitude of the input pulse can be kept unchanged, and the power supply voltage of the pulse driving circuit is regulated, so that the output voltage is regulated, and the purpose of regulating the pulse intensity is achieved. Therefore, the constant-current type pulse driving circuit has no stinging feeling, has no defects of complex circuit structure and high cost, and improves the working efficiency of the pulse driving circuit. And the digital adjustable potentiometer is applied to the circuit for adjusting the power supply voltage, so that the whole adjusting circuit is further simplified, the reliability of the circuit is increased, and the adjusting function of the circuit is enhanced.
In an embodiment, the device further comprises a microcontroller MCU, wherein the microcontroller MCU is connected with the main control circuit through a UART interface, and the microcontroller MCU is in communication connection with a user side provided with a special APP through Bluetooth.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. A device for regulating a stimulating electrical pulse that stimulates the human body, the device comprising:
the main control circuit is used for generating a pulse signal according to an external control instruction;
the voltage regulating circuit is used for enabling the output voltage to be in a first voltage range to a second voltage range;
the time-sharing multiplexing circuit is used for receiving the output voltage of the voltage regulating circuit and outputting electric stimulation signals through different stimulation electrodes in different time periods under the control of the main control circuit;
the voltage regulating circuit includes:
the boost module is used for converting low voltage into high voltage;
the filtering module is used for carrying out filtering treatment on the high voltage;
the adjusting module is used for adjusting the voltage after the filtering treatment and enabling the output voltage to be in a range from the first voltage to the second voltage;
the adjustment module includes:
the first input module is used for inputting a first voltage to a first input end of the differential amplification module;
the second input module is used for inputting a second voltage to a second input end of the differential amplification module;
the first switch module is used for controlling the on-off of the second switch module;
the second switch module is used for controlling the on-off of the adjusting module;
the voltage regulating circuit comprises a DC-DC power management chip MC34063; the SWC pin of MC34063 is connected with first inductance L1, the other end of first inductance L1 is connected with the positive pole of first diode D1, the negative pole of first diode D1 is connected with one end of second inductance L2, the other end of second inductance L2 is connected with one end of sixth capacitance C6, the other end of sixth capacitance C6 is grounded, the SWE pin of MC34063 is respectively connected with the positive pole of second diode D2, one end of third resistor R3, the base of first triode Q1, the other end of third resistor R3 is grounded, the collector of first triode Q1 is grounded, the emitter is connected with the negative pole of second diode D2, the negative pole of second diode D2 is also connected with the grid of first MOS tube Q2, the drain of first MOS tube Q2 is connected with the positive pole of first diode D1, the source of first MOS tube Q2 is grounded; the F.B pole of the MC34063 is grounded through a second resistor R2 and is also connected with a fifth capacitor C5 through a fourth resistor R4, the two ends of the fifth capacitor C5 are also connected with a third diode D3 in parallel, the positive pole of the third diode D3 is grounded, and the negative poles of the third diode D3 are respectively connected with the negative poles of the fifth capacitor C5 and the first diode D1;
the voltage regulating circuit further comprises a differential amplifying circuit, the differential amplifying circuit comprises an eighth resistor R8, a ninth resistor R9, a fifth triode Q5, a sixth triode Q6 and an eleventh resistor R11, wherein a reference voltage is input into the base electrode of the fifth triode Q5, the base electrode of the fifth triode Q5 is connected with one end of the second inductor L2 through the seventh resistor R7, the base electrode of the fifth triode Q5 is grounded through the eleventh resistor R11 after being connected with the base electrode of the sixth triode Q6, the collector electrode of the fifth triode Q5 is connected with the second inductor L2 through the eighth resistor R8, and the collector electrode of the sixth triode Q6 is connected with the second inductor L2 through the ninth resistor R9; the base electrode of the sixth triode Q6 is connected with one end of a seventh capacitor C7, the other end of the seventh capacitor C7 is connected with the grid electrode of a second MOS tube Q4, the drain electrode of the second MOS tube is connected with a second inductor L2, and the source electrode is used as an output end; the voltage regulating circuit further comprises a third triode Q3, the emitter of the third triode Q3 is grounded, the base electrode of the third triode Q3 is connected with the cathode of a fourth diode D4 through a sixth resistor R6, the anode of the fourth diode D4 is grounded, and the base electrode of the third triode Q3 is connected with a power supply through a fifth resistor R5; the collector of the third triode Q3 is connected with the collector of the sixth triode Q6 and is also connected with the grid electrode of the second MOS tube Q4; the base electrode of the sixth triode Q6 is connected with the sliding end of the digital potentiometer, one end of the tenth resistor R10 is connected with the source electrode of the second MOS tube, the other end of the tenth resistor R10 is connected with the high end of the digital potentiometer, and meanwhile is connected with the negative electrode of the fifth diode D5, and the positive electrode of the fifth diode D5 is grounded; the lower end of the digital potentiometer is grounded through a twelfth resistor R12; the fourth diode D4 and the fifth diode D5 are overvoltage protection diodes.
2. A device for regulating a stimulating electrical pulse for stimulating a person according to claim 1, further comprising:
and the channel detection circuit is used for detecting whether current flows through the different stimulation electrodes.
3. The device for adjusting stimulating electrical pulses of a human being according to claim 1, wherein said second input module comprises a voltage divider circuit, an output of said voltage divider circuit being connected to a second input of said differential amplification module.
4. A device for regulating a stimulating electrical pulse for stimulating a person according to claim 3, wherein said voltage dividing circuit comprises at least a digital potentiometer.
5. The device for adjusting stimulating electrical pulses of a human body according to claim 1, wherein the time division multiplexing circuit comprises multiple time division multiplexing units, each time division multiplexing unit comprises a pulse driving circuit, and an output end of one of the pulse driving circuits is connected with a sampling circuit.
6. The apparatus for regulating a stimulating electrical pulse of a human being of claim 5, wherein said sampling circuit comprises a sampling resistor.
7. The apparatus for regulating stimulating electrical pulses of a human body of claim 5, further comprising an amplifying circuit for amplifying the output current of the sampling circuit.
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| CN110943727A (en) * | 2019-12-19 | 2020-03-31 | 西安航天民芯科技有限公司 | H-bridge switch circuit applied to epilepsy stimulation treatment |
| CN111870812B (en) * | 2020-08-24 | 2024-04-02 | 大悦创新（苏州）医疗科技股份有限公司 | Electrical stimulation output circuit |
| CN115454185B (en) * | 2022-09-02 | 2023-11-28 | 南京伟思医疗科技股份有限公司 | Amplitude-adjustable power supply control method and control system of pulse magnetic stimulator |
| CN116059534A (en) * | 2023-03-07 | 2023-05-05 | 中国人民解放军总医院第六医学中心 | Fatigue rehabilitation instrument based on vibration and electric stimulation of meridian points |
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| CN104941064A (en) * | 2015-06-24 | 2015-09-30 | 华南理工大学 | Electrical pulse migraine therapeutic instrument |
| CN108853722A (en) * | 2017-05-13 | 2018-11-23 | 陕西诺奕生物医药科技有限公司 | A kind of control system of transcutaneous electrical stimulation physics headache therapeutic equipment |
| CN108853721A (en) * | 2017-05-13 | 2018-11-23 | 陕西诺奕生物医药科技有限公司 | A kind of pulse generating circuit of transcutaneous electrical stimulation physics headache therapeutic equipment |
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