CN208785590U - A kind of hardware circuit of pain electric pulse therapeutic equipment - Google Patents

Abstract

The utility model relates to a kind of hardware circuits of pain electric pulse therapeutic equipment, including microcontroller, bluetooth module, booster circuit, pulse shaping circuit, USB bridgt circuit, LED indicating circuit, power management module, key module, 3-axis acceleration sensor and lithium battery, microcontroller output pin is separately connected bluetooth module, booster circuit, pulse shaping circuit, USB bridgt circuit, LED indicating circuit, power management module, key module, 3-axis acceleration sensor input terminal, wherein booster circuit output end connects pulse shaping circuit input terminal, power management module output end connects lithium battery input terminal, the utility model advantage is that the electrical impulse frequency used and pulse width are different from existing product, user can select treatment intensity according to oneself symptom and using effect.

Description

A kind of hardware circuit of pain electric pulse therapeutic equipment

Technical field

The utility model relates to a kind of hardware of medical system technical field more particularly to pain electric pulse therapeutic equipment electricity Road.

Background technique

The purpose of pain therapy is to mitigate or terminate panic attacks, alleviates concomitant symptom, prevents recurrent pain, treatment means Including two aspects of drug therapy and non-drug therapy, using drug therapy there are a degree of toxic side effect, patient may There is adverse reaction.

Non-drug therapy is mainly physical therapy, electrotherapy can be used, magnetic therapy, psychological counseling relieve stress etc., with drug Treatment is compared, and maximum advantage is exactly the toxic side effect for being not in drug.

In terms of electrotherapy, electrode usually is placed at the certain positions of body surface, applies electric signal.The electrode that body surface is placed Generally all far from chest, and apply voltage, electric current all very littles, any influence will not be generated to heart.Electrotherapy mainly has directly Voltaism, galvanoiontophoresis therapy, low, except large quantity of moisture is contained in human body, there are also electrolysis that much can be conductive Matter and non-conductive dielectric, because the body of this person is actually the complicated conductor that an existing resistance has capacitive properties again, this It is the material base of electrotherapy, reactions vary to electro photoluminescence of different nature for body, and cure mechanism is also different, and low-frequency current is changeable The film potential of nerves and muscles cell is allowed to excited and generates contraction；The electric current of intermediate frequency of low frequency modulations can make the thick of sensory nerve Fiber is excited, inhibits the incoming of fine fibre impulsion, therefore analgesic activity is stronger, but the electrical impulse frequency of existing therapeutic equipment and Pulse width is all specifically, specific electric impulse signal (transcutaneous electrical stimulation-TENS) cannot to be exported by microcontroller, Shank top body surface sensory nerve is stimulated, inhibited by micro controller system, interrupt pain information in central nervous system Transmitting.

Utility model content

It is all specifically, specific electric arteries and veins cannot to be exported by microcontroller to solve electrical impulse frequency and pulse width Rush signal (transcutaneous electrical stimulation-TENS), stimulate shank top body surface sensory nerve, by micro controller system inhibit, in Disconnected transmitting of the pain information in central nervous system, the utility model provide a kind of hardware electricity of pain electric pulse therapeutic equipment Road, be mainly characterized by using electrical impulse frequency and pulse width it is different from existing product.This product passes through microcontroller It exports specific electric impulse signal (transcutaneous electrical stimulation-TENS), user can select according to oneself symptom and using effect It treats intensity (pulse current), stimulates shank top body surface sensory nerve, inhibited by micro controller system, interrupt pain information Transmitting in central nervous system；Transcutaneous electrical stimulation can promote endorphin of the human body release with analgesic activity simultaneously (morphine sample) substance generates analgesic activity.

The technical solution of the utility model is: a kind of hardware circuit of pain electric pulse therapeutic equipment, includes at least microcontroller Device, bluetooth module, booster circuit, pulse shaping circuit, USB bridgt circuit, LED indicating circuit, power management module, key mould Block, 3-axis acceleration sensor and lithium battery, it is characterised in that: the microcontroller output is separately connected bluetooth module, rises Volt circuit, pulse shaping circuit, USB bridgt circuit, LED indicating circuit, power management module, key module, 3-axis acceleration Sensor input, wherein booster circuit output end connects pulse shaping circuit input terminal, the connection of power management module output end Lithium battery input terminal, lithium battery is the power supply of each modular circuit in power management module, and power management module is that microcontroller is powered, Microcontroller, which controls booster circuit, becomes a DC voltage VH for lithium battery voltage boosting, and voltage VH is pulse shaping circuit confession Electricity, pulse shaping circuit export pulse signal under the control of the micro-controller, and 3-axis acceleration sensor transmits three-dimensional space Between azimuth information to microcontroller, microcontroller and bluetooth module mutually transmit remote control signal, USB bridgt circuit and micro-control The mutual transmission procedure information of device processed, the pulse shaping circuit include H-bridge circuit, include four NPN triodes in H-bridge circuit Q5, Q6, Q9 and Q11, four power MOS pipes Q4, Q7, Q8 and Q10, Q4 and Q8 are P-channel enhancement type metal-oxide-semiconductor, and Q7 and Q10 are The enhanced metal-oxide-semiconductor of N-channel.

The microcontroller uses the single-chip microcontroller of model MSP430.

The booster circuit uses TPS73601 single-chip microcontroller, and circuit connects microcontroller by P6.6 pin, microcontroller Control signal is transmitted to the U2 chip in booster circuit by P6.0 mouthfuls.

The pulse shaping circuit passes through P4.1, P4.2, P4.3, P4.4, p6.5, TEST pin on pulse shaping circuit Connect with microcontroller respective pins, pulse shaping circuit generate pulse signal by P4.1, P4.2 on pulse shaping circuit, P4.3, P4.4, p6.5 pin are transmitted to microcontroller, when P4.1 and P4.2 is high level, and P4.3 and P4.4 is low level, Triode Q5 and Q6 conducting, and then field-effect tube Q4 and Q10 conducting are motivated, field-effect tube Q7 and Q8 cut-off generate direct impulse Electric current, J1 terminal voltage increase, when P4.1 and P4.2 is low level, and P4.3 and P4.4 is high level, triode Q9 and Q11 Conducting, and then field-effect tube Q7 and Q8 conducting are motivated, field-effect tube Q4 and Q10 cut-off generate reverse pulse current, J2 terminal electricity Pressure increases, meanwhile, P6.6 and P4.0 mouthfuls of pulse shaping circuit control the conducting and cut-off of triode Q3 and Q16 by U3A, electricity Hindering R34 is treatment pulse current sample resistance, and treatment pulse current is converted into pulse voltage by it, is filtered through capacitor C15, resistance The port P6.5 of microcontroller is transmitted back to after R35 isolation, C11-C14 is speed-up capacitor, and D9-D14 is protection diode.

The 3-axis acceleration sensor use MMA8451 sensor, MMA8451 sensor using P2.0, P2.1, P3.0, P3.3, P3.1 pin are connect with microcontroller, and 3-axis acceleration sensor generates orientation detection signal and accelerated by three axis P2.0, P2.1, P3.0, P3.3, P3.1 on degree sensor pass to microcontroller, and microcontroller by P2.0, P2.1, P3.0, P3.3, P3.1 pin transmitting control signal are to 3-axis acceleration sensor.

The USB bridgt circuit is CP2102 single-chip microcontroller, connects microcontroller by RST, P1.1, P2.2, TCK pin, USB bridgt circuit by RST, P1.1, P2.2 pin transmit electric signal arrive microcontroller, microcontroller pass through RST, P1.1, P2.2 pin transmitting control signal gives USB bridgt circuit.

The bluetooth module use CC2541 single-chip microcontroller, powered using 3V battery, by P1.7, P3.6, P3.7, P2.3, P2.4, P5.0-P5.5 pin are connected to microcontroller, and transmit remote control signal to bluetooth module, and LED indicating circuit is logical It crosses VCC-LED pin to connect with microcontroller, microcontroller transmitting control signal is transmitted to LED indication by VCC-LED pin In circuit.

The power management module uses the single-chip microcontroller of model TP4056, is connected by P1.3, P1.2, P6.4 pin micro- Controller, BAT+ and BAT- are connected respectively to lithium battery anode, cathode, and pin CHR and STD are connected to micro-control after level conversion The port P1.2 and P1.3 of device processed, the lithium battery voltage between BAT+ and BAT- are sent to after resistance R46 and resistance R47 partial pressure The port P6.4 of microcontroller.

The beneficial effects of the utility model are:

(1) under conditions of load impedance is 1K Ω resistance, the treatment crest value of impulse voltage of this product output is 0Vp---- 100Vp(± 20%), pulse current peak is 0mA----100mA(± 20%).Pulse width is 200 μ s ± 20% of fixed value, but Pulse period be 10ms---14ms(± 20%) between change at random.User can select according to oneself symptom and using effect It treats intensity (pulse current).

(2) this product can be exported specific electric impulse signal (transcutaneous electrical stimulation-TENS) by microcontroller, stimulation Shank top body surface sensory nerve is inhibited by micro controller system, interrupts transmitting of the pain information in central nervous system； Transcutaneous electrical stimulation can promote human body release to have endorphin (morphine sample) substance of analgesic activity simultaneously, generate analgesia and make With.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is Tthe utility model system composition block diagram；

Fig. 2 is the utility model microcontroller power supply circuit and booster circuit figure；

Fig. 3 is that the utility model pulse signal forms circuit diagram；

Fig. 4 is the utility model 3-axis acceleration sensor circuit diagram；

Fig. 5 is the utility model USB bridgt circuit figure；

Fig. 6 is the utility model bluetooth module, LED indicating circuit figure；

Fig. 7 is the utility model battery charger figure；

Fig. 8 is the utility model microcontroller circuit figure.

1. microcontroller, 2. bluetooth modules, 3. booster circuits, 4. pulse shaping circuits, 5.USB bridgt circuit, 6.LED refer to Show circuit, 7. 3-axis acceleration sensors, 8. key modules, 9. power management modules, 10. lithium batteries.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment 1: a kind of hardware circuit of pain electric pulse therapeutic equipment includes at least microcontroller 1, bluetooth module 2, rises Volt circuit 3, pulse shaping circuit 4, USB bridgt circuit 5, LED indicating circuit 6, power management module 9, key module 8, three axis Acceleration transducer 7 and lithium battery 10, it is characterised in that: 1 output end of microcontroller is separately connected bluetooth module 2, boosting Circuit 3, pulse shaping circuit 4, USB bridgt circuit 5, LED indicating circuit 6, power management module 9, key module 8, three axis add 7 input terminal of velocity sensor, wherein 3 output end of booster circuit connects 4 input terminal of pulse shaping circuit, and power management module 9 is defeated Outlet connects 10 input terminal of lithium battery, and lithium battery 10 is the power supply of each modular circuit, power management module 9 in power management module 9 For the power supply of microcontroller 1, microcontroller 1, which controls booster circuit 3, becomes a DC voltage VH, electricity for 10 boost in voltage of lithium battery Press VH for the power supply of pulse shaping circuit 4, pulse shaping circuit 4 exports pulse signal, three axis under the control of microcontroller 1 Acceleration transducer 7 transmits three dimensional orientation information to microcontroller 1, and microcontroller 1 and the mutually transmitting of bluetooth module 2 are long-range Signal, USB bridgt circuit 5 and the mutual transmission procedure information of microcontroller 1 are controlled, the pulse shaping circuit 4 includes H bridge electricity Road, includes four NPN triode Q5, Q6, Q9 and Q11 in H-bridge circuit, four power MOS pipe Q4, Q7, Q8 and Q10, Q4 and Q8 For P-channel enhancement type metal-oxide-semiconductor, and Q7 and Q10 is the enhanced metal-oxide-semiconductor of N-channel.

System-wide power supply is in close state before being switched on, and to reduce system standby power consumption, booting afterpulse signal is formed The output pulse signal under the control of microcontroller 1 of circuit 4 pastes electrode by collagen and acts on human body.The control of microcontroller 1 rises The amplitude of 2 output voltage of volt circuit, the automatic characteristic variations for adapting to cell voltage variation, skin and collagen electrode, optimization treatment Parameter allows user to obtain good treatment impression as far as possible.3-axis acceleration sensor 8 is that microcontroller 1 provides this therapeutic equipment Three dimensional orientation information, only judge that this therapeutic equipment is in correct dimensional orientation and just can enter working condition.Bluetooth Module 2 can realize that information transmission can be in intelligent hand by developing specific APP with other equipment bluetooth-capable The working condition of therapeutic equipment is monitored on machine.Computer can be downloaded to program in microcontroller 1 by USB bridgt circuit 5, together When by USB interface realize lithium battery 10 charging.LED indicating circuit 6 is with the working condition of different Modular Display Systems.

Embodiment 2:

As shown in figure 8, single-chip microcontroller of the microcontroller 1 using model MSP430.

Select 1 core devices of power management and microcontroller that power consumption is extremely low.In the design of circuit part, MSP430 is had selected Low, the low in energy consumption MSP430F169IPM of operating voltage controls core as the core of this product in 1 Product Family of Series of MCU Piece.Meanwhile ultra low differential pressure, super low-power consumption power supply chip TPS73601DBVT having been selected to realize power management, which can be in pole It works under low input-output pressure difference, oneself power consumption is extremely low.For other peripheral circuits, select to control by microcontroller 1 The on-off of metal-oxide-semiconductor processed realizes power source dynamic management, only powers in the work of correlation unit circuit.

Embodiment 3:

As shown in Figure 2 and Figure 8, the booster circuit 3 uses TPS73601 single-chip microcontroller, and circuit is connected micro- by P6.6 pin Controller 1, the P6.0 mouth of microcontroller 1 are transmitted to the U2 chip in booster circuit 3 for signal is controlled.

Booster circuit 3 generates PWM output by dedicated DC-DC boost chip under the control of microcontroller 1, motivates high frequency function Rate MOS boosting pipe, by components such as energy storage inductor, fast-recovery commutation diode, energy storage filter capacitors, in microcontroller 1 The suitable voltage of the lower output of control, is that pulse shaping is powered at circuit 4.

LDO chip U1 is the core chips of power management module 9, due to limited battery capacity, with using prolonging for time Long, output voltage can gradually decline.Select TPS73601 as LDO chip, which can be in the ultra low differential pressure of 30mV Lower work, to provide reliable and stable working power for microcontroller 1, the voltage VCC of 5 feet output passes through resistance R2 and R3 points Pressure, then 4 feet of U1 are accessed as DC feedback voltage.Final output voltage VCC is determined by resistance R3 and R4.

The effect of booster circuit 3 is to convert battery voltage to the higher DC voltage VH of voltage.The circuit transformations efficiency Height, structure is simple, reliable performance.In this product, the core of booster circuit 3 is DC-DC special chip U2, and 5 feet export PWM Signal motivates external high speed MOS switch pipe Q1, cooperates the line of high quality factor around power inductance L1, and the fast recovery of high speed Switching diode D7 collectively constitutes booster circuit 3.Control signal is added to the enable end 2 of U2 through R4 by the P6.0 mouth of microcontroller 1 Foot, to need to control whether booster circuit works according to working condition.After booster circuit 3 enters working condition, from micro- The control voltage of the P6.6 mouth of controller 1 drives metal-oxide-semiconductor Q2, the high voltage VH that control booster circuit 3 exports through amplifier U3B, this It is one " on-demand boost " dynamically boosted control circuit.

After microcontroller 1 is accurately calculated according to the amplitude demand of output pulse, a control electricity is exported from P6.6 mouthfuls Pressure, this control voltage drive metal-oxide-semiconductor Q2 after amplifier U3B amplification, and the drain electrode of Q2 is connected to the tie point of R8 and R9, the leakage of Q2 Pole voltage-to-ground is connected to 4 foot of feedback control end of boost control chip U2, the pin through resistance R11 after R9 and T10 partial pressure Voltage can control the duty ratio of 5 foot of chip output PWM step-up excitation signal, to control the high voltage of the output of booster circuit 3.

By this control process, the output HIGH voltage VH of the booster circuit 3 is adjusted by the dynamic of microcontroller 1, thus root The output HIGH voltage VH of booster circuit 3 is adjusted according to the demand dynamic of output pulse amplitude, it is ensured that its high voltage exported can be with The amplitude of output pulse increases and improves, and realizes that microcontroller 1 is precisely controlled the dynamic of booster circuit 3.

Dual over-voltage automatic protection circuit, which realizes, is precisely controlled treatment pulse voltage.Improve this system work Reliability, even will not occur overtension phenomenon in the case where exporting the zero load of pulse terminal, effectively prevent originally controlling Treat instrument because caused by over-voltage damage, be especially that of avoiding even if in abnormal cases, will not occur because treatment voltage be higher than set Definite value causes the discomfort of user.

Embodiment 4:

The pulse shaping circuit 4 is drawn by P4.1, P4.2, P4.3, P4.4, p6.5, TEST on pulse shaping circuit 4 Foot is connect with 1 respective pins of microcontroller, pulse shaping circuit 4 generate pulse signal by P4.1 on pulse shaping circuit 4, P4.2, P4.3, P4.4, p6.5 pin are transmitted to microcontroller 1, when P4.1 and P4.2 be high level, and P4.3 and P4.4 be it is low When level, triode Q5 and Q6 conducting, and then field-effect tube Q4 and Q10 conducting are motivated, field-effect tube Q7 and Q8 cut-off generate just To pulse current, J1 terminal voltage is increased, when P4.1 and P4.2 is low level, and P4.3 and P4.4 is high level, triode Q9 and Q11 conducting, and then field-effect tube Q7 and Q8 conducting are motivated, field-effect tube Q4 and Q10 cut-off generate reverse pulse current, J2 terminal voltage increases, meanwhile, P6.6 and P4.0 mouthfuls of pulse shaping circuit 4 control the conducting of triode Q3 and Q16 by U3A With cut-off, resistance R34 is treatment pulse current sample resistance, and treatment pulse current is converted into pulse voltage by it, through capacitor C15 Filtering is transmitted back to the port P6.5 of microcontroller after resistance R35 isolation, C11-C14 is speed-up capacitor, and D9-D14 is protection two Pole pipe.

Control pulse is provided by P4.1, P4.2, P4.3 and P4.4 terminal of microcontroller 1, impulse amplitude is by microcontroller 1 Supply voltage determine that the control impulse amplitude in this product is 3Vp, and final treatment peak value of pulse need to reach 100Vp, institute With control pulse needs to be converted by H-bridge circuit.In this product, buffered by four NPN triodes Q5, Q6, Q9 and Q11 Then amplification motivates metal-oxide-semiconductor field effect transistor Q4, Q7, Q8 and Q10 to realize treatment pulse output.Wherein Q4 and Q8 is P-channel enhancement type Metal-oxide-semiconductor, and Q7 and Q10 is the enhanced metal-oxide-semiconductor of N-channel, under the accurate control for the control pulse that microcontroller 1 provides, by it Common cooperation, the satisfactory treatment pulse of final output.

Above-mentioned pulse producing method can obtain the bipolarity treatment arteries and veins of Symmetrical between output terminal J1 and J2 Punching, acts on human body by collagen electrode, will not generate the polarization phenomena of unipolar pulse, keep therapeutic effect more excellent.

R34 is treatment pulse current sample resistance, and treatment pulse current is converted into pulse voltage by it, is filtered through C15, The port P6.5 of microcontroller is transmitted back to after R35 isolation, microcontroller 1 is used to monitor treatment pulse current after being AD converted Size, it is ensured that treatment pulse current is steady state value, it is ensured that is not in arteries and veins while user obtains stable point electric impulse therapeutic Rush that intensity is excessive to bring sense of discomfort to user.

C11-C14 is speed-up capacitor, is the high frequency characteristics in order to improve pulse buffer amplifying circuit, and D9-D14 is protection Diode, effect are protection Hyblid Buffer Amplifier triode and pulse output field-effect tube, it is ensured that it works at higher voltages Shi Buhui punch through damage.C16 and C17 is the filtering decoupling capacitance of this element circuit, eliminates ripple interference and exists, improves electromagnetic compatibility Characteristic.

First current voltage-controlled constant-current circuit is sent to after resistance R16, R17 partial pressure from P6.6 mouthfuls of microcontroller of control voltage 3 feet of U3A, voltage of the source current of Q3 after R20 is sampled are sent to 2 feet of U3A, the two compare in amplifier U3A after 1 foot Output voltage is sent to the grid of Q3 through R18, R19, realizes to P6.6 mouthfuls of the current constant control fruit microcontroller of the source current of Q3 It is constant to control voltage, then treats that pulse output circuit is just constant, realizes the current constant control for the treatment of pulse current.

Second voltage-controlled constant-current control circuit treatment pulse current is sampled through resistance R34, and C15 filtering is sent to after R35 isolation Microprocessor P6.5 foot is AD converted, and is monitored by 1 pair for the treatment of pulse current of microcontroller, if treatment pulse current with Setting value has deviation, then microcontroller 1 adjusts the output high pressure VH of booster circuit by adjusting P6.6 mouthfuls of control voltage, leads to The lifting of high pressure VH is crossed to change the size of output treatment pulse current, to realize current constant control.

The dual current constant control for treating pulse current improves the reliability of this system work, realizes strong to treatment pulse Being precisely controlled for degree, keeps the impression of user in therapeutic process more comfortable.Meanwhile this product being made to have short-circuit protection function, Even if the direct short-circuit of pulse terminal will be exported, the still controlled setting value for being maintained at user of pulse current will not be due to short circuit Damage this product.

Embodiment 5:

As shown in Figure 4 and Figure 8, the 3-axis acceleration sensor 7 uses MMA8451 sensor, and MMA8451 sensor makes It is connect with P2.0, P2.1, P3.0, P3.3, P3.1 pin with microcontroller 1,3-axis acceleration sensor 7 generates orientation detection letter Number microcontroller 1, and microcontroller are passed to by P2.0, P2.1, P3.0, P3.3, P3.1 on 3-axis acceleration sensor 7 Device 1 is by P2.0, P2.1, P3.0, P3.3, P3.1 pin transmitting control signal to 3-axis acceleration sensor 7.

MMA8451 is intelligent low-power consumption, and three axis accelerometer, high resolution, volume is minimum, is suitble in portable product Middle use.Peripheral cell value is all selected according to the chip handbook of MMA8451.

Embodiment 6:

As shown in Figure 5 and Figure 8, the USB bridgt circuit 5 is CP2102 single-chip microcontroller, is drawn by RST, P1.1, P2.2, TCK Foot connects microcontroller 1, and USB bridgt circuit 5 transmits electric signal to microcontroller 1, microcontroller by RST, P1.1, P2.2 pin Device 1 is by RST, P1.1, P2.2 pin transmitting control signal to USB bridgt circuit 5.

The core devices of the circuit are the USB transceiver CP2102 that single-chip USB turns the transmission of UART data.Without external electrical Device is hindered, the clock being internally integrated can work without external crystal, be internally integrated the EEPROM of 1024 bytes, while the chip With on piece electrification reset circuit and on piece voltage-stablizer, 3.3 V voltage outputs are generated.

The USB function control device of the chip is compatible with 2.0 specification of USB, has full speed (12Mbps) asynchronous serial data total Line (UART).Support USB interface cable to RS-232 Serial Adaptation Unit power supply self-powered, chip is using 28 pin QFN encapsulation.Outside The selection for enclosing other elements is executed according to the requirement of chip handbook, and chip U7 is the protection circuit of CP2102 mating USB port, C40 is the filter capacitor of 3.3V power supply.Lead label RST, P1.1, P2.2, TCK in Fig. 5 are connected to the same of Fig. 8 microcontroller On name pin.

Embodiment 7:

As shown in Figure 6 and Figure 8, the bluetooth module 2 uses CC2541 single-chip microcontroller, is powered using 3V battery, by P1.7, P3.6, P3.7, P2.3, P2.4, P5.0-P5.5 pin are connected to microcontroller 1, and transmit remote control signal and give bluetooth mould Block 2, LED indicating circuit 6 are connect by VCC-LED pin with microcontroller 1, and the transmitting control signal of microcontroller 1 passes through VCC- LED pin is transmitted in LED indicating circuit 6.

CC2541 power consumption is ultralow, and operating current minimum can drop to microampere order.Ultra low voltage power supply, 3V battery can be used to supply Electricity, minimum operating voltage can drop to 2.0V.Built-in 256K byte erasable memory.

CC2541 bluetooth module is selected, working frequency range 2.402GHz-2.480GHz belongs to ISM band, and power grade is indigo plant II grades of tooth, master chip CC2541, U10 are exclusively for the voltage stabilizing chip of bluetooth module power supply, and 3 foot of enable end is by microcontroller P1.7 port controlling, can decide whether as needed for bluetooth module 2 power supply.

One blue led indicates bluetooth module working condition, and 1s is glittering primary during bluetooth discovery pairing, and it is external its After the Bluetooth pairing success of his equipment, 5s is glittering primary.One red LED indicates treatment pulse and therapeutic electrode in many ways Connection, and undertake battery capacity it is too low when warning function: when battery capacity is too low red indicating light length it is bright；Therapeutic electrode Fail with when collagen pastes and skin is correctly connect, red indicating light is per second glittering primary.Other 5 white indicating lights are for showing The state of self-adapting adjustment of system, normal output treatment pulse condition, display battery capacity etc..R48-R54 is current-limiting resistance.

Embodiment 8:

As shown in fig. 7, the single-chip microcontroller of the power management module 9 using model TP4056, by P1.3, P1.2, P6.4 pin connects microcontroller 1, and BAT+ and BAT- are connected respectively to 10 anode of lithium battery, cathode, and pin CHR and STD are through electricity Flat turn is connected to the port P1.2 and P1.3 of microcontroller 1 after changing, 10 voltage of lithium battery between BAT+ and BAT- is through resistance R46 After resistance R47 partial pressure, it is sent to the port P6.4 of microcontroller 1.

TP4056 is a kind of complete single-cell lithium-ion battery using constant current/constant voltage linear charger.Its bottom Portion has cooling fin, cooperates with less outer member, so that TP4056 becomes the ideal chose of portable use.TP4056 USB power source can be suitble to work, it is consistent with the requirement of the design.

Due to using internal PMOSFET framework, in addition anti-down charging circuit, so not needing external isolating diode.It fills Piezoelectric voltage is fixed on 4.2V, and charging current can carry out external setting by a resistor R41.When charging current is reaching most When being down to setting value 1/10 after whole float charge voltage, TP4056 will terminate charging cycle automatically.

When input voltage (AC adapter or USB power supply) is taken away, TP4056 is automatically into a low current shape Battery leakage current is down to 2uA hereinafter, battery is avoided to pass through charging circuit back discharge by state.TP4056 can also when there is power supply It is placed in shutdown mode, is down to 55uA with and by supply current.TP4056 also has undervoltage lockout, recharges and two use automatically It is charging in instruction, charge LED the status pin CHR and STD terminated.Due to+the 5V provided when TP4056 work by USB Power supply power supply, and the microcontroller 1 of this system is+3V power supply, in order to enable the logic level of the two is compatible, in its pin CHR The level shifting circuit being made of Q12, Q13 and R42-R45 has been coupled outside with STD, has made the logic of the element circuit final output Level is compatible with microcontroller 1, and status pin CHR and STD are connected to the end P1.2 and P1.3 of microcontroller 1 after level conversion Mouthful.In addition, the cell voltage between BAT+ and BAT- is sent to the port P6.4 of microcontroller 1 after R46 and R47 partial pressure, so as to Dynamic monitoring is carried out to cell operating status and cell voltage.

Claims (8)

1. a kind of hardware circuit of pain electric pulse therapeutic equipment includes at least microcontroller (1), bluetooth module (2), booster circuit (3), pulse shaping circuit (4), USB bridgt circuit (5), LED indicating circuit (6), power management module (9), key module (8), 3-axis acceleration sensor (7) and lithium battery (10), it is characterised in that: microcontroller (1) output pin connects respectively Connect bluetooth module (2), booster circuit (3), pulse shaping circuit (4), USB bridgt circuit (5), LED indicating circuit (6), power supply Management module (9), key module (8), 3-axis acceleration sensor (7) input terminal, wherein booster circuit (3) output end connects arteries and veins Punching forms circuit (4) input terminal, and power management module (9) output end connects lithium battery (10) input terminal, power management module (9) Middle lithium battery (10) is the power supply of each modular circuit, and power management module (9) is microcontroller (1) power supply, microcontroller (1) control Lithium battery (10) boost in voltage is become DC voltage VH by booster circuit (3), and voltage VH is pulse shaping circuit (4) power supply, arteries and veins Punching forms circuit (4) and exports pulse signal, 3-axis acceleration sensor (7) transmitting three under the control of microcontroller (1) Dimension space azimuth information mutually transmits remote control signal, USB to microcontroller (1), microcontroller (1) and bluetooth module (2) Bridgt circuit (5) and microcontroller (1) mutually transmission procedure information, the pulse shaping circuit (4) include H-bridge circuit, H bridge electricity It include four NPN triodes Q5, Q6, Q9 and Q11 in road, four power MOS pipes Q4, Q7, Q8 and Q10, Q4 and Q8 are P-channel increasing Strong type metal-oxide-semiconductor, and Q7 and Q10 is the enhanced metal-oxide-semiconductor of N-channel.

2. a kind of hardware circuit of pain electric pulse therapeutic equipment according to claim 1, it is characterised in that: the microcontroller Device (1) uses the single-chip microcontroller of model MSP430.

3. a kind of hardware circuit of pain electric pulse therapeutic equipment according to claim 1, it is characterised in that: the boosting electricity Road (3) uses TPS73601 single-chip microcontroller, and for circuit by P6.6 pin connection microcontroller (1), the P6.0 mouth of microcontroller (1) will Control signal is transmitted to the U2 chip in booster circuit (3).

4. a kind of hardware circuit of pain electric pulse therapeutic equipment according to claim 1, it is characterised in that: the pulse form Pass through P4.1, P4.2, P4.3, P4.4, p6.5, TEST pin and microcontroller on pulse shaping circuit (4) at circuit (4) (1) respective pins connect, pulse shaping circuit (4) generate pulse signal by P4.1, P4.2 on pulse shaping circuit (4), P4.3, P4.4, p6.5 pin are transmitted to microcontroller (1), when P4.1 and P4.2 be high level, and P4.3 and P4.4 be low level When, triode Q5 and Q6 conducting, and then field-effect tube Q4 and Q10 conducting are motivated, field-effect tube Q7 and Q8 cut-off generate positive arteries and veins Rush electric current, J1 terminal voltage increases, when P4.1 and P4.2 is low level, and P4.3 and P4.4 is high level, triode Q9 and Q11 conducting, and then field-effect tube Q7 and Q8 conducting are motivated, field-effect tube Q4 and Q10 cut-off generate reverse pulse current, the end J2 Sub- voltage increases, meanwhile, P6.6 and P4.0 mouthful of pulse shaping circuit (4) by the conducting of U3A control triode Q3 and Q16 and Cut-off, resistance R34 are treatment pulse current sample resistance, and treatment pulse current is converted into pulse voltage by it, is filtered through capacitor C15 Wave is transmitted back to the port P6.5 of microcontroller after resistance R35 isolation, C11-C14 is speed-up capacitor, and D9-D14 is two poles of protection Pipe.

5. a kind of hardware circuit of pain electric pulse therapeutic equipment according to claim 1, it is characterised in that: three axis adds Velocity sensor (7) uses MMA8451 sensor, and MMA8451 sensor uses P2.0, P2.1, P3.0, P3.3, P3.1 pin It is connect with microcontroller (1), 3-axis acceleration sensor (7) generates orientation detection signal and passes through 3-axis acceleration sensor (7) On P2.0, P2.1, P3.0, P3.3, P3.1 pass to microcontroller (1), and microcontroller (1) by P2.0, P2.1, P3.0, P3.3, P3.1 pin transmitting control signal give 3-axis acceleration sensor (7).

6. a kind of hardware circuit of pain electric pulse therapeutic equipment according to claim 1, it is characterised in that: the USB bridge Connecing circuit (5) is CP2102 single-chip microcontroller, passes through RST, P1.1, P2.2, TCK pin connection microcontroller (1), USB bridgt circuit (5) electric signal is transmitted to microcontroller (1) by RST, P1.1, P2.2 pin, microcontroller (1) passes through RST, P1.1, P2.2 Pin transmitting control signal gives USB bridgt circuit (5).

7. a kind of hardware circuit of pain electric pulse therapeutic equipment according to claim 1, it is characterised in that: the bluetooth mould Block (2) uses CC2541 single-chip microcontroller, is powered using 3V battery, passes through P1.7, P3.6, P3.7, P2.3, P2.4, P5.0-P5.5 Pin is connected to microcontroller (1), and transmits remote control signal and give bluetooth module (2), and LED indicating circuit (6) passes through VCC- LED pin is connect with microcontroller (1), and microcontroller (1) transmitting control signal is transmitted to LED indication by VCC-LED pin In circuit (6).

8. a kind of hardware circuit of pain electric pulse therapeutic equipment according to claim 1, it is characterised in that: the power supply pipe The single-chip microcontroller that module (9) use model TP4056 is managed, is connected by P1.3, P1.2, P6.4 pin on power management module (9) It connects microcontroller (1), BAT+ and BAT- are connected respectively to lithium battery (10) anode, cathode, and pin CHR and STD are through level conversion Be connected to the port P1.2 and P1.3 of microcontroller (1) afterwards, lithium battery (10) voltage between BAT+ and BAT- through resistance R46 and After resistance R47 partial pressure, it is sent to the port P6.4 of microcontroller (1).