CN104967212A - Complementary power supply method for implanted device - Google Patents
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- 230000000295 complement effect Effects 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000000338 in vitro Methods 0.000 claims description 38
- 238000012546 transfer Methods 0.000 claims description 27
- 210000003491 skin Anatomy 0.000 claims description 24
- 210000002615 epidermis Anatomy 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 13
- 238000004146 energy storage Methods 0.000 claims description 13
- 239000007943 implant Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 230000005672 electromagnetic field Effects 0.000 claims description 5
- 238000001727 in vivo Methods 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000005284 excitation Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000002513 implantation Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 11
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- 210000001519 tissue Anatomy 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
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- 238000012986 modification Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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Abstract
Complementary power supply of a direct contact power supply unit and a non-contact power supply unit is adopted, defects of a single power supply mode that when the direct contact power supply unit transmits power, temperature of a skin rises, and discomfort is brought to the user can be solved. At the time, power transmission can be continued in a non-contact power supply mode, power transmission is maintained, when the battery power is seriously insufficient, charging is needed or emergency power supply is needed, the non-contact power supply mode can be limited by the transmission power or the transmission efficiency, or the magnetic field direction of a coil, enough power complementation can be not effectively and timely provided, and at the time, a direct contact power supply mode can be used for power transmission, and enough power can be stably outputted.
Description
Technical field
The present invention relates to a kind of technical field of supply of electric power of built-in type device, specifically, is a kind of complementary method of supplying power to of built-in type device.
Background technology
Implant devices can be used for the change of measuring physiological parameter in life entity, diagnoses, treats some disease, also can be used to the organ replacing oneself forfeiture of some function.Due to the effect that it gives prominence to very much, and there is bright, wide potential applicability in clinical practice.Implanting the key technical problem that faces of electronic device is how provide sufficient electric energy through skin to et al. Ke device efficient, maintains that it is long-term, stable, reliably works; (2) the information transmission between external device and et al. Ke device is realized how efficiently, with low power.Because the body conductive characteristic of biological tissue is coupled with very strong shielding action to magnetic induction, so there is the low shortcoming of transmission efficiency in the technology adopting magnetic induction coupling to carry out energy transferring, therefore traditional magnetic induction coupling supply power mode power transmission efficiency is not high, and the supply power mode of direct dermal contact, there is larger contact impedance in the contact interface of electrode and biological tissue, increases rate of signal attenuation and energy transfer losses; Invalid transverse current during energy transferring in skin histology, may cause the heating of skin histology, thus limits the maximum of energy transfer efficiency.
Summary of the invention
Based on the deficiencies in the prior art, the invention provides a kind of complementary method of supplying power to of built-in type device, the method comprises and directly contacts power supply unit, non-contact power unit, two-way reversing switch and wireless communication unit, direct contact power supply unit is connected by two-way reversing switch with non-contact power unit, and wireless communication unit carries out transfer of data in body and external.
External AC supply voltage vl and the electrode 1 and 2 of direct contact power supply unit are connected, and under the excitation exchanging electromotive force, skin inside produces the alternating current of distribution, forms alternating potential difference in vivo between electrode 3 and 4 simultaneously; Under the condition that diode is desirable, if the electrical potential difference after over commutation is greater than the voltage v2 implanting battery, then electrode 3 and 4 forms closed-loop path through rectifier and implantation battery, produces the charging current of battery v2, realizes energy transferring.When realizing energy transferring, the longitudinal current that skin inside exists transdermal and the transverse current circulated in skin.Longitudinal current charges to battery in body after rectification, and to implantation electronics, is useful electric current; And transverse current is without this function, consumed energy, the temperature of skin increases, and playing side effect, is useless electric current.By geometry and the distribution of electrodes of choice electrode material and design electrode, make longitudinal current account for the large percentage of total current, transverse current ratio is little, can effectively to implantation electronics.
Adopt the electrode group (being called electrode-skin unit) being close to skin, utilize the ionic conduction current of biological tissue to be activated to the couple electrical energy of electrode in vitro group to internal electrode group, and be delivered to implantation battery and electronic device.Consider the feature of polarization of electrode effect and ionic conduction current, directly the electric current of contact power supply unit is alternating current.
When external be dc-battery power time, external cell Vs is transformed to the alternating voltage Vl of appropriate voltage amplitude and frequency by DC/AC transducer, and acts on the electrode in vitro l and 2 of electrode-skin unit; Under the effect of alternating voltage, skin inside forms alternating current, and at the internal electrode 3 and 4 output AC electric current of electrode-skin unit; Alternating current is transformed to direct current by the AC/DC transducer in body, to energy-storage travelling wave tube (rechargeable battery or the super capacitor) charging in body, simultaneously to implantation electronics.
The key of this energy transfer process is, under the prerequisite not injuring skin, electrode in vitro electric current is delivered to internal electrode most effectively, is formed effectively to the charging current of energy-storage travelling wave tube with to the supply current implanting electronic device.
Although be distribution at skin internal current, at 4 electrodes in order to battery charging, rectifier must be inserted between electrode and battery in vivo, (vl, R1) be voltage and the internal resistance of AC power, (v2, R2) is voltage and the internal resistance of implanting battery.
Open circuit voltage V between electrode 3 and 4
34for:
Work as V
34maximum be greater than and implant cell voltage (V
2) and the forward conduction voltage (V of 2 diodes
d) time, implanting battery can be charged, i.e. V
34> V
2+ 2V
d
Comprehensively above-mentioned two formulas can obtain,
input circuit impedance and the bridge impedance (Z of equivalent electric circuit
5) ratio, it be reflection charge characteristic an important parameter.Therefore, defining input circuit impedance ILIR is:
From charge condition Shi Ke get:
1. the amplitude of external AC supply voltage must be greater than implantation cell voltage;
The internal resistance of 2. implanting battery does not affect charge condition, but the internal resistance of external AC supply voltage affects charge condition;
3. as diode forward conducting voltage (V
d) much smaller than the voltage implanting battery, when the internal resistance of AC power is much smaller than Skin Resistance, charge condition is reduced to:
According to Such analysis, can the key property that transmits of proper conduction energy:
1. charge condition is the constraints that body conduction energy transmits.When charge condition meets, can to implantation battery transferring energy, otherwise, can not transferring energy.
2. according to charge condition, best AC supply voltage waveform is square wave.Because the voltage magnitude constant of square wave, alternating voltage amplitude is certain and when meeting charge condition, square-wave voltage always makes implantation battery charge, and sine voltage does not meet charge condition when its zero passage, rectifier ends, and implantation battery can not be charged.
Another kind of energy-provision way adopts to be powered by the non-contact power unit of electromagnetic coupled.It both separately for various implanted electronic device provides energy, also can cooperatively interact with other energy-provision way, and electromagnetic coupled mode is by being fixed on the electromagnetic resonance coupled modes energy supply between external primary coil and the secondary coil implanted.With directly implant compared with battery in body, have and change battery, without revealing dangerous advantage without the need to operation.Face, compared with employing wire energy-provision way, has without the need to external wire, advantage without risk of infection.
The system of being carried out noncontact Energy Transfer by the coupling of electromagnetic field resonance is principal and subordinate's coupled resonance loop.System comprises receiving circuit in emitting stage (elementary) resonant circuit, receiver stage (secondary) resonant circuit and body.In order to realize, to body internal transmission information, also needing modulation circuit.Emitting stage and receiver stage resonant circuit are all made up of inductance capacitance resonant tank.The circuit resonance that is coupled through of electromagnetic field realizes.In body, receiving circuit function comprises rectification and voltage stabilizing, sometimes also needs to carry out demodulation to the signal of carrier modulation, and transmitting and receiving coil will be made on PCB.
During work, the electric power of AC power carries out resonance by external primary coil, in body, secondary coil has the resonance frequency identical with external primary coil, external primary coil by magnetic resonance coupling power supply mode by electric power transfer to secondary coil in body, in body, secondary coil is after receiving Resonant power, carry out rectification, voltage stabilizing, thus electric power is supplied to energy-storage units or built-in type device.
Electromagnetic coupled system, while transmitting energy, can also carry out suitable modulation to carry out the exchange of inside and outside information simultaneously to carrier wave.Radio communication is external and exchanges the bridge of signal between implanted device.The two-way exchange of the inside and outside data of body ensures that implanted device is long-term, the important guarantee of reliably working.The communication that inside and outside information exchange requirement is reliable, stable.Internal microprocessor, by the battery parameter measured (comprising voltage, electric current, temperature etc.), is sent to external display by radio receiving transmitting module.The medium of information exchange electromagnetic coupled passage as transfer of data is completed between outside control implanted device and vitro program controlled device.
Direct contact power supply unit is connected by two-way reversing switch with non-contact power unit, conducting when both are different, the open circuit voltage of outside power transmission unit inspection electrode in vitro, when the open circuit voltage of electrode in vitro is supply voltage, show that electrode in vitro is not connected by epidermis with internal electrode, now, controller controls two-way reversing switch by non-contact power unit incoming transport power supply, now, AC power by electric power transfer to primary coil, primary coil by the mode of resonance by electric power transfer to secondary coil, thus perfect aspect is outer to the electric power transfer in body, and be supplied to embedded type device or energy-storage units, when the open circuit voltage of electrode in vitro is lower than supply voltage or be less than set point, show that electrode in vitro is contacted with internal electrode by epidermis, now, controller controls two-way reversing switch directly will contact power supply unit incoming transport power supply, disconnect the supply of electric power of non-contact power unit, now, AC power passes through electrode in vitro, through epidermis by electric power transfer to internal electrode, and be supplied to embedded type device or energy-storage units, simultaneously, the surperficial set temperature transducer of electrode in vitro, when electrode contacts with epidermis in vitro, detect the temperature of epidermis, when epidermis being detected because the temperature that transverse current causes raises, when reaching set point, send sound and light alarm or too high by display unit prompting operator temperature, when operator receives prompting, when electrode in vitro and internal electrode are stopped contacting, as taken away electrode in vitro, now, detect that the open circuit voltage of electrode in vitro equals supply voltage, controller controls two-way reversing switch by non-contact power unit incoming transport power supply, when operator does not respond prompting operation, and temperature is when reaching the threshold value of setting, disconnect the connection directly contacting power supply unit and AC power, embedded type device detects the electricity of battery, the information such as temperature, and give external power transmission device by communication by information transmission, when battery electric power is full of, automatic cut-out AC power and the connection directly contacting power supply unit and non-contact power unit.
Power by adopting the complementation of directly contact power supply unit and non-contact power unit, thus solve the deficiency of single supply power mode, namely the rising of skin temperature is caused when directly contact power supply unit is transmitted electricity, thus bring discomfort to user, now, the conveying of electric power is proceeded by non-contact power mode, thus maintain the transmission of electric power, simultaneously, certain activity space is brought to user, in scope user not being needed not to be restricted in be connected with power line, activity can be carried out within the specific limits, because embedded type device relates to life security, when battery electric quantity wretched insufficiency is needed charging badly or is needed emergency service, adopt non-contact power mode may be limited to the power of transmission and the efficiency of transmission, simultaneously, also can be limited by the magnetic direction of coil, thus enough electric power can not be provided timely and effectively to supplement, now, the transmission of electric power can be carried out by the mode of directly contact power supply, the electric power that output that can be stable is enough.
Accompanying drawing explanation
Fig. 1 is the power supply the principle figure directly contacting supply power mode.
Fig. 2 is the equivalent circuit diagram directly contacting supply power mode.
Fig. 3 is the equivalent circuit diagram of noncontact supply power mode.
Fig. 4 is the complementary electric power-feeding structure figure directly contacting power supply unit and non-contact power unit.
Embodiment
A kind of complementary method of supplying power to of built-in type device, the method comprises and directly contacts power supply unit, non-contact power unit, two-way reversing switch and wireless communication unit, direct contact power supply unit is connected by two-way reversing switch with non-contact power unit, and wireless communication unit carries out transfer of data in body and external.
As shown in Figure 1, external AC supply voltage vl and the electrode 1 and 2 of direct contact power supply unit are connected, and under the excitation exchanging electromotive force, skin inside produces the alternating current distributed, and forms alternating potential difference in vivo between electrode 3 and 4 simultaneously; Under the condition that diode is desirable, if the electrical potential difference after over commutation is greater than the voltage v2 implanting battery, then electrode 3 and 4 forms closed-loop path through rectifier and implantation battery, produces the charging current of battery v2, realizes energy transferring.When realizing energy transferring, the longitudinal current that skin inside exists transdermal and the transverse current circulated in skin.Longitudinal current charges to battery in body after rectification, and to implantation electronics, is useful electric current; And transverse current is without this function, consumed energy, the temperature of skin increases, and playing side effect, is useless electric current.By geometry and the distribution of electrodes of choice electrode material and design electrode, make longitudinal current account for the large percentage of total current, transverse current ratio is little, can effectively to implantation electronics.
Adopt the electrode group (being called electrode-skin unit) being close to skin, utilize the ionic conduction current of biological tissue to be activated to the couple electrical energy of electrode in vitro group to internal electrode group, and be delivered to implantation battery and electronic device.Consider the feature of polarization of electrode effect and ionic conduction current, directly the electric current of contact power supply unit is alternating current.
When external be dc-battery power time, external cell Vs is transformed to the alternating voltage Vl of appropriate voltage amplitude and frequency by DC/AC transducer, and acts on the electrode in vitro l and 2 of electrode-skin unit; Under the effect of alternating voltage, skin inside forms alternating current, and at the internal electrode 3 and 4 output AC electric current of electrode-skin unit; Alternating current is transformed to direct current by the AC/DC transducer in body, to energy-storage travelling wave tube (rechargeable battery or the super capacitor) charging in body, simultaneously to implantation electronics.
The key of this energy transfer process is, under the prerequisite not injuring skin, electrode in vitro electric current is delivered to internal electrode most effectively, is formed effectively to the charging current of energy-storage travelling wave tube with to the supply current implanting electronic device.
As shown in Figure 2, although be distribution at skin internal current, at 4 electrodes in order to charge to battery, must insert rectifier between electrode and battery in vivo, (vl, R1) is voltage and the internal resistance of AC power, (v2, R2) is voltage and the internal resistance of implanting battery.
Open circuit voltage V between electrode 3 and 4
34for:
Work as V
34maximum be greater than and implant cell voltage (V
2) and the forward conduction voltage (V of 2 diodes
d) time, implanting battery can be charged, i.e. V
34> V
2+ 2V
d
Comprehensively above-mentioned two formulas can obtain,
input circuit impedance and the bridge impedance (Z of equivalent electric circuit
5) ratio, it be reflection charge characteristic an important parameter.Therefore, defining input circuit impedance ILIR is:
From charge condition Shi Ke get:
1. the amplitude of external AC supply voltage must be greater than implantation cell voltage;
The internal resistance of 2. implanting battery does not affect charge condition, but the internal resistance of external AC supply voltage affects charge condition;
3. as diode forward conducting voltage (V
d) much smaller than the voltage implanting battery, when the internal resistance of AC power is much smaller than Skin Resistance, charge condition is reduced to:
According to Such analysis, can the key property that transmits of proper conduction energy:
1. charge condition is the constraints that body conduction energy transmits.When charge condition meets, can to implantation battery transferring energy, otherwise, can not transferring energy.
2. according to charge condition, best AC supply voltage waveform is square wave.Because the voltage magnitude constant of square wave, alternating voltage amplitude is certain and when meeting charge condition, square-wave voltage always makes implantation battery charge, and sine voltage does not meet charge condition when its zero passage, rectifier ends, and implantation battery can not be charged.
As shown in Figure 3, another kind of energy-provision way adopts to be powered by the non-contact power unit of electromagnetic coupled.It both separately for various implanted electronic device provides energy, also can cooperatively interact with other energy-provision way, and electromagnetic coupled mode is by being fixed on the electromagnetic resonance coupled modes energy supply between external primary coil and the secondary coil implanted.With directly implant compared with battery in body, have and change battery, without revealing dangerous advantage without the need to operation.Face, compared with employing wire energy-provision way, has without the need to external wire, advantage without risk of infection.
The system of being carried out noncontact Energy Transfer by the coupling of electromagnetic field resonance is principal and subordinate's coupled resonance loop.System comprises receiving circuit in emitting stage (elementary) resonant circuit, receiver stage (secondary) resonant circuit and body.In order to realize, to body internal transmission information, also needing modulation circuit.Emitting stage and receiver stage resonant circuit are all made up of inductance capacitance resonant tank.The circuit resonance that is coupled through of electromagnetic field realizes.In body, receiving circuit function comprises rectification and voltage stabilizing, sometimes also needs to carry out demodulation to the signal of carrier modulation, and transmitting and receiving coil will be made on PCB.
During work, the electric power of AC power carries out resonance by external primary coil, in body, secondary coil has the resonance frequency identical with external primary coil, external primary coil by magnetic resonance coupling power supply mode by electric power transfer to secondary coil in body, in body, secondary coil is after receiving Resonant power, carry out rectification, voltage stabilizing, thus electric power is supplied to energy-storage units or built-in type device.
Electromagnetic coupled system, while transmitting energy, can also carry out suitable modulation to carry out the exchange of inside and outside information simultaneously to carrier wave.Radio communication is external and exchanges the bridge of signal between implanted device.The two-way exchange of the inside and outside data of body ensures that implanted device is long-term, the important guarantee of reliably working.The communication that inside and outside information exchange requirement is reliable, stable.Internal microprocessor, by the battery parameter measured (comprising voltage, electric current, temperature etc.), is sent to external display by radio receiving transmitting module.The medium of information exchange electromagnetic coupled passage as transfer of data is completed between outside control implanted device and vitro program controlled device.
As shown in Figure 4, direct contact power supply unit is connected by two-way reversing switch with non-contact power unit, conducting when both are different, the open circuit voltage of outside power transmission unit inspection electrode in vitro, when the open circuit voltage of electrode in vitro is supply voltage, show that electrode in vitro is not connected by epidermis with internal electrode, now, controller controls two-way reversing switch by non-contact power unit incoming transport power supply, now, AC power by electric power transfer to primary coil, primary coil by the mode of resonance by electric power transfer to secondary coil, thus perfect aspect is outer to the electric power transfer in body, and be supplied to embedded type device or energy-storage units, when the open circuit voltage of electrode in vitro is lower than supply voltage or be less than set point, show that electrode in vitro is contacted with internal electrode by epidermis, now, controller controls two-way reversing switch directly will contact power supply unit incoming transport power supply, disconnect the supply of electric power of non-contact power unit, now, AC power passes through electrode in vitro, through epidermis by electric power transfer to internal electrode, and be supplied to embedded type device or energy-storage units, simultaneously, the surperficial set temperature transducer of electrode in vitro, when electrode contacts with epidermis in vitro, detect the temperature of epidermis, when epidermis being detected because the temperature that transverse current causes raises, when reaching set point, send sound and light alarm or too high by display unit prompting operator temperature, when operator receives prompting, when electrode in vitro and internal electrode are stopped contacting, as taken away electrode in vitro, now, detect that the open circuit voltage of electrode in vitro equals supply voltage, controller controls two-way reversing switch by non-contact power unit incoming transport power supply, when operator does not respond prompting operation, and temperature is when reaching the threshold value of setting, disconnect the connection directly contacting power supply unit and AC power, embedded type device detects the electricity of battery, the information such as temperature, and give external power transmission device by communication by information transmission, when battery electric power is full of, automatic cut-out AC power and the connection directly contacting power supply unit and non-contact power unit.
Power by adopting the complementation of directly contact power supply unit and non-contact power unit, thus solve the deficiency of single supply power mode, namely the rising of skin temperature is caused when directly contact power supply unit is transmitted electricity, thus bring discomfort to user, now, the conveying of electric power is proceeded by non-contact power mode, thus maintain the transmission of electric power, simultaneously, certain activity space is brought to user, in scope user not being needed not to be restricted in be connected with power line, activity can be carried out within the specific limits, because embedded type device relates to life security, when battery electric quantity wretched insufficiency is needed charging badly or is needed emergency service, adopt non-contact power mode may be limited to the power of transmission and the efficiency of transmission, simultaneously, also can be limited by the magnetic direction of coil, thus enough electric power can not be provided timely and effectively to supplement, now, the transmission of electric power can be carried out by the mode of directly contact power supply, the electric power that output that can be stable is enough.
The foregoing is only of the present invention and be preferably not limited to the present invention, obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. the complementary method of supplying power to of a built-in type device, the method comprises and directly contacts power supply unit, non-contact power unit, two-way reversing switch and wireless communication unit, direct contact power supply unit is connected by two-way reversing switch with non-contact power unit, and wireless communication unit carries out transfer of data in body and external.
2. the complementary method of supplying power to of built-in type device as claimed in claim 1, it is characterized in that, external AC supply voltage v1 and the electrode 1 and 2 of direct contact power supply unit are connected, under the excitation exchanging electromotive force, skin inside produces the alternating current of distribution, forms alternating potential difference in vivo between electrode 3 and 4 simultaneously; Electrical potential difference after over commutation is greater than the voltage v2 implanting battery, and electrode 3 and 4 is through rectifier and implant battery formation closed-loop path, produces the charging current of battery v2, realizes energy transferring.
3. the complementary method of supplying power to of built-in type device as claimed in claim 2, is characterized in that, the open circuit voltage V between electrode 3 and 4
34for:
In formula, R
1for AC power internal resistance, Z
1, Z
2the contact impedance of electrode, Z
5for bridge impedance, V
1for AC supply voltage;
Work as V
34maximum be greater than and implant cell voltage V
2with the forward conduction voltage V of 2 diodes
dtime, implant battery and charged, namely
V
34＞V
2+2V
d
Comprehensively above-mentioned two formulas can obtain:
input circuit impedance and the bridge impedance Z of equivalent electric circuit
5ratio, input circuit impedance ILIR is:
4. the complementary method of supplying power to of built-in type device as claimed in claim 3, it is characterized in that, non-contact power unit comprises receiving circuit in primary resonant circuit, secondary resonant circuits and body, primary and secondary resonant circuit is all made up of inductance capacitance resonant tank, the circuit resonance that is coupled through of electromagnetic field realizes, and transmitting and receiving coil will be made on PCB;
During work, the electric power of AC power carries out resonance by external primary coil, in body, secondary coil has the resonance frequency identical with external primary coil, external primary coil by magnetic resonance coupling power supply mode by electric power transfer to secondary coil in body, in body, secondary coil is after receiving Resonant power, carry out rectification, voltage stabilizing, thus electric power is supplied to energy-storage units or built-in type device.
5. the complementary method of supplying power to of built-in type device as claimed in claim 4, it is characterized in that, the battery parameter that internal microprocessor will measure, be sent to external display by radio receiving transmitting module, between outside control implanted device and vitro program controlled device, complete the medium of information exchange electromagnetic coupled passage as transfer of data.
6. the complementary method of supplying power to of built-in type device as claimed in claim 5, it is characterized in that, direct contact power supply unit is connected by two-way reversing switch with non-contact power unit, conducting when both are different, the open circuit voltage of outside power transmission unit inspection electrode in vitro, when the open circuit voltage of electrode in vitro is supply voltage, show that electrode in vitro is not connected by epidermis with internal electrode, now, controller controls two-way reversing switch by non-contact power unit incoming transport power supply, now, AC power by electric power transfer to primary coil, primary coil by the mode of resonance by electric power transfer to secondary coil, thus perfect aspect is outer to the electric power transfer in body, and be supplied to embedded type device or energy-storage units, when the open circuit voltage of electrode in vitro is lower than supply voltage or be less than set point, show that electrode in vitro is contacted with internal electrode by epidermis, now, controller controls two-way reversing switch directly will contact power supply unit incoming transport power supply, disconnect the supply of electric power of non-contact power unit, now, AC power passes through electrode in vitro, through epidermis by electric power transfer to internal electrode, and be supplied to embedded type device or energy-storage units, simultaneously, the surperficial set temperature transducer of electrode in vitro, when electrode contacts with epidermis in vitro, detect the temperature of epidermis, when epidermis being detected because the temperature that transverse current causes raises, when reaching set point, send sound and light alarm or too high by display unit prompting operator temperature, when operator receives prompting, when electrode in vitro and internal electrode are stopped contacting, now, detect that the open circuit voltage of electrode in vitro equals supply voltage, controller controls two-way reversing switch by non-contact power unit incoming transport power supply, when operator does not respond prompting operation, and temperature is when reaching the threshold value of setting, disconnect the connection directly contacting power supply unit and AC power, embedded type device detects the electricity of battery, temperature information, and give external power transmission device by communication by information transmission, when battery electric power is full of, automatic cut-out AC power and the connection directly contacting power supply unit and non-contact power unit.
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| CN201510422299.4A CN104967212A (en) | 2015-07-17 | 2015-07-17 | Complementary power supply method for implanted device |
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|---|---|---|---|
| CN201510422299.4A CN104967212A (en) | 2015-07-17 | 2015-07-17 | Complementary power supply method for implanted device |
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| CN107069979A (en) * | 2017-03-20 | 2017-08-18 | 深圳先进技术研究院 | A kind of wireless charging system and method |
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