CN101834472A - Power management device at receiving terminal and wireless energy supply system - Google Patents
Power management device at receiving terminal and wireless energy supply system Download PDFInfo
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- CN101834472A CN101834472A CN201010159169A CN201010159169A CN101834472A CN 101834472 A CN101834472 A CN 101834472A CN 201010159169 A CN201010159169 A CN 201010159169A CN 201010159169 A CN201010159169 A CN 201010159169A CN 101834472 A CN101834472 A CN 101834472A
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Abstract
The invention discloses a power management device at a receiving terminal and a wireless energy supply system. The device is applied in the wireless energy supply system so as to solve the problem that the existing wireless energy supply technology can not provide peak power, and comprises an energy-storage element and a peak point current discharge loop, wherein the energy-storage element comprises a super capacitor; and the peak point current discharge loop is connected to the super capacitor and is used for outputting the peak power after receiving the energy transmitted by the super capacitor.
Description
Technical field
The present invention relates to the wireless energy supply field, relate in particular to the power management device at receiving terminal and the wireless energy supply system of wireless energy supply.
Background technology
The wireless power technology is the problem that people are concerned about always, at the beginning of last century, Nicola Tesla just carried out the experimental study of remote-wireless transmission of electricity, particularly in recent years, the portable type electronic product emerge in multitude, and the development of sensor wireless network technology and MEMS device, promoted the research and development of wireless power and radio network technique, and obtained preliminary achievement in theory research and practicability technical elements.Wireless power has a lot of solutions, as electromagnetic induction, and the transmission of RF signal, magnetic coupling, optical transmission or the like, every kind of all restricted bottleneck of scheme.The Massachusetts Institute of Technology (MIT) utilizes mr techniques in recent years, has obtained great breakthrough on wireless power, realized transmitting electric power to the about 2m of distance 60W bulb far away, and with its experiment of lighting.This magnetic coupling technology has caused the upsurge of wireless power research and development for the moment.
Wireless power has vast market prospect.In remote sensing control field, vehicle electric field, the equal broad market prospect of consumer electronics field and biologic medical field.Biologic medical field particularly, for implantation chip or the device on the biomedicine, because its particularity, if with traditional chemical cell power supply, its life-span is limited, when the energy content of battery is not enough to chip that make to implant or other device and system (as drug delivery system etc.) operate as normal, just must solve by the mode of performing the operation, increased patient's misery.If by wireless power supply system is chip or the device power supply that body is implanted into, because its control system external, is connected with system wireless in the body, this will overcome this problem.In addition, wireless power is on biomedicine, and as the human body medicine transmission system, better the directional transmissions medicine improves curative effect.All these a bit all make wireless power in biomedicine and other field wide utilization prospect be arranged.
In wireless power energy storage solution, particularly in the biologic medical field, main energy storage scheme is to adopt button cell as energy-storage travelling wave tube, and this button cell may be lithium battery, poly-lithium battery or other battery.
Adopt button cell as energy-storage travelling wave tube, have shortcoming at least: the intrinsic characteristic of battery makes it that peak power can not be provided, and can't satisfy the requirement of the system that shooting and photography needs are arranged, as medical capsule endoscope etc.
Super capacitor is the novel electric power energy storage device that can manufacture in recent years, is also referred to as electrochemical capacitor.It not only has the high discharge power advantage of electrostatic condenser but also can have than the large charge storage capacity as battery, and the capacity of monomer has been accomplished ten thousand farads of levels at present.Super capacitor also has advantage such as have extended cycle life, power density is big, the speed that discharges and recharges is fast, high-temperature behavior good, capacity configuration is flexible, environmental friendliness is non-maintaining in addition.
Summary of the invention
The invention provides the power management device at receiving terminal and the wireless energy supply system that are used for wireless energy supply, can't provide the problem of peak power to solve existing wireless energy supply technology.
The power management device at receiving terminal that the embodiment of the invention provides comprises energy-storage travelling wave tube and peak current discharge loop, and described energy-storage travelling wave tube comprises super capacitor; And described peak current discharge loop is connected to this super capacitor, is used for after receiving the energy that the super capacitor transmission comes, and therefore the output peak power has solved the problem that existing wireless energy supply technology can't provide peak power.
The wireless energy supply system that the embodiment of the invention provides comprises energy-storage travelling wave tube and peak current discharge loop, and described energy-storage travelling wave tube comprises super capacitor; And described peak current discharge loop is connected to this super capacitor, is used for after receiving the energy that the super capacitor transmission comes, and therefore the output peak power has solved the problem that existing wireless energy supply technology can't provide peak power.
Description of drawings
Fig. 1 is the structural representation of embodiment of the invention wireless energy supply system;
Fig. 2 is the structural representation of transmitting terminal management devices 1 among Fig. 1;
Fig. 3 is a kind of structural representation of wireless energy transform device 2 shown in Figure 2
Shown in Figure 4 is a kind of structure of power management device at receiving terminal 3 among Fig. 1;
Figure 5 shows that receiving terminal power management module 31 among Fig. 4 and a kind of concrete structure of receiving terminal feedback control module 32;
Shown in Figure 6 is charging control circuit 311 among Fig. 5 and a kind of structure of charge/discharge control circuit 313;
Figure 7 shows that a kind of structure of internal feedback control circuit 322 among Fig. 5;
Figure 8 shows that a kind of structure of the energy-storage travelling wave tube 312 among Fig. 5;
Shown in Figure 9 is a kind of structure of present embodiment wireless energy supply system.
Embodiment
Further specify the present invention below in conjunction with the drawings and specific embodiments, direction shown in the arrow is the direction of transfer of signal and energy in the accompanying drawing.
As shown in Figure 1, the wireless energy supply system of present embodiment comprises transmitting terminal management devices 1, wireless energy transform device 2, power management device at receiving terminal 3, load 4 and signal display apparatus 5.Energy is transformed into the outwards energy of wireless transmission by transmitting terminal management devices 1, then by wireless energy transform device 2 outside wireless transmission.At the receiving terminal of energy, the energy of 3 pairs of receptions of power management device at receiving terminal is handled, and handles action and generally comprises rectification, filtering, energy storage and operation such as discharge and recharge, and these operations all are to realize by special circuit.After energy was handled by power management device at receiving terminal 3, controlledly supply load 4.
Wherein the working condition of load 4 can Monitoring and Controlling, and its operating state is received 3 monitorings of end electric power controller, and power management device at receiving terminal 3 is regulated the work that self working state adapts to load 4 by the situation of load 4.Power management device at receiving terminal 3 can also generate feedback signal and send to transmitting terminal management devices 1 by wireless mode, the working condition according to detected load 4 so that further carry out the emission of control energy at the energy transmitting terminal.Power management device at receiving terminal 3 also can have the energy situation that monitoring receives self in addition, and according to detected energy situation to transmitting terminal management devices 1 feedback corresponding signal, by the emission of transmitting terminal management devices 1 adjustment energy, can realize that like this self adaptation of working state of system is regulated.The signal of power management device at receiving terminal 3 feedbacks can send to signal display apparatus 5 by transmitting terminal management devices 1, so very intuitively the operating state of observing system.
Shown in Figure 2 is a kind of structural representation of transmitting terminal management devices 1 among Fig. 1, and transmitting terminal management devices 1 comprises the control module 11 that transmits, feedback control module 12 and feedback signal receiver module 13.Energy by the control module 11 that transmits change into can wireless transmission energy outwards launch, after feedback signal receiver module 13 receives the next signal of feedback, the signal that feedback is come can be controlled the operating state of the control module 11 that transmits on the one hand by feedback control module 12, can send to signal display apparatus 5 on the other hand and be shown by it.
Fig. 3 is a kind of structural representation of wireless energy transform device 2.The control module that transmits 11 converts the energy into energy that can wireless transmission and is transferred to wireless energy transform device 2, by wireless energy transform device 2 wireless transmission energy, there is a receiver module to receive energy that can wireless transmission and converts it into manageable electric energy at an end of wireless energy transform device 2.Transmitting and receiving generally of wireless energy realizes by two coils, one is called primary coil (shown in great circle), be used for receiving the energy that control module 11 sends that transmits, another is called secondary coil (shown in ringlet), is used for the wireless transmission energy.The transmission means of wireless energy has a lot, can be way of electromagnetic induction, can be the magnetic coupling mode, also can be radiofrequency signal (RF) radiation mode.
Shown in Figure 4 is a kind of structure of power management device at receiving terminal 3 among Fig. 1, comprises receiving terminal power management module 31 and receiving terminal feedback control module 32.The energy that receiving terminal power management module 31 reception wireless energy transform devices 2 wireless transmission are come also carries out a series of treatment and supplied loads 4, receiving terminal feedback control module 32 can receive the feedback control signal of load 4 and receiving terminal power management module 31, change into wireless signal and outwards be transmitted to feedback signal receiver module 13, can control its operating state according to the feedback control signal of receiving terminal power management module 31 in addition.
Figure 5 shows that receiving terminal power management module 31 among Fig. 4 and a kind of concrete structure of receiving terminal feedback control module 32.Receiving terminal power management module 31 comprises charging control circuit 311, energy-storage travelling wave tube 312 and charge/discharge control circuit 313, and wherein energy-storage travelling wave tube 312 can adopt super capacitor (EDLC) energy storage separately, also can adopt the energy storage together of super capacitor and battery.
Receiving terminal feedback control module 32 comprises feedback signal radiating circuit 321, internal feedback control circuit 322 and load signal sample circuit 323.The energy that receives sends to charging control circuit 311 and is converted into available energy, store by energy-storage travelling wave tube 312 on the one hand, follow-up required for load 4, on the other hand by charge/discharge control circuit 313 direct supply loads 4, so two kinds of energy supply modes can be arranged, real-time feed and storage are supplied with.Load signal sample circuit 323 is gathered the signal of load 4, passes to feedback signal radiating circuit 321.Internal feedback control circuit 322 detects the state of energy-storage travelling wave tube 312, and detection signal sends to feedback signal radiating circuit 321 on the one hand, sends to charging control circuit 311 on the other hand.Charging control circuit 311 is adjusted working method by the detection signal that receives, and adapts to the state of energy-storage travelling wave tube 312.Feedback signal radiating circuit 321 sends to feedback signal receiver module 13 with the signal that load signal sample circuit 323 and internal feedback control circuit 322 pass over, and adjusts the working method of transmitting terminal, reaches the effect of FEEDBACK CONTROL.
Shown in Figure 6 is charging control circuit 311 among Fig. 5 and a kind of structure of charge/discharge control circuit 313, and charging control circuit 311 mainly comprises current rectifying and wave filtering circuit 3111, DC to DC converter (DC/DC) 3112, low-dropout regulator (LDO) 3113 and constant-current constant-voltage charging module 3114.Charge/discharge control circuit 313 mainly comprises DC to DC converter (DC/DC) 3131, low-dropout regulator (LDO) 3132 and peak value circuit discharge path 3133.Identical among operation principle and above-mentioned Fig. 5 mainly shows the specific implementation of its various piece especially.The energy of the wireless transmission that receives is generally AC signal, change into direct current signal by current rectifying and wave filtering circuit 3111, DC to DC converter (DC/DC) 3112 and low-dropout regulator (LDO) 3113 mainly are that the direct current signal that is used for obtaining through rectifying and wave-filtering 3111 rectifications changes into load 4 or energy-storage travelling wave tube 312 required voltage or current signal.Because the signal of telecommunication voltage that wireless power obtains is generally lower, can change into required voltage by DC to DC converter (DC/DC) 3112.Low-dropout regulator (LDO) 3113 mainly plays burning voltage, and certain pressure drop is arranged, discharge voltage that like this can stable supplying load 4 or the charging voltage of giving energy-storage travelling wave tube 312.DC to DC converter (DC/DC) the 3112nd, optionally, this requirement according to system is handled flexibly.Through charging control circuit 311 processed electrical signals, can deliver to energy-storage travelling wave tube 312 on the one hand and store, realize the energy storage power supply; Can directly deliver to the control and treatment that charge/discharge control circuit 313 carries out discharge signal on the other hand, realize power supply in real time.The signal of telecommunication of bringing is handled by the lifting that DC to DC converter (DC/DC) 3131 carries out voltage, passes through low-dropout regulator (LDO) 3132 then and carries out the voltage stabilizing processing, and supply load 4 then.DC to DC converter (DC/DC) 3131 also is optionally, for example can directly pass through low-dropout regulator (LDO) 3132 and give load 4 power supplies.
Peak current discharge path 3133 provides another kind of electric mode, this path is the path that peak power is provided to load specially, cooperate the super capacitor (EDLC) in the energy-storage travelling wave tube 312 to use, adopt super capacitor (EDLC) as energy-storage travelling wave tube, cooperate peak current discharge path 3133, can well satisfy the requirement of the peak power of load 4, as photography, shootings etc., solving battery can not provide the problem of peak power for effectively load 4.
When system did not have the peak power requirement, the conventional path that DC to DC converter (DC/DC) 3131 and low-dropout regulator (LDO) 3132 are formed provided energy for load.Battery and super capacitor (EDLC) hybrid energy-storing can provide two kinds of above-mentioned mode of operations equally.
Figure 7 shows that a kind of structure of internal feedback control circuit 322 among Fig. 5.Internal feedback control circuit 322 mainly comprises protection control circuit 3221, voltage detecting circuit 3222, current monitoring circuit 3223 and temperature sensing circuit 3224 etc.Voltage detecting circuit 3222, current monitoring circuit 3223 and temperature sensing circuit 3224 detect voltage, electric current and the device temperature of energy-storage travelling wave tube 312 respectively; according to the testing result that obtains; protection control circuit 3221 is made and is judged the output control signal; on the one hand charging control circuit 311 is made control, control signal outwards sends through feedback signal radiating circuit 321 on the other hand.
Figure 8 shows that a kind of structure of the energy-storage travelling wave tube 312 among Fig. 5.Energy storage can be adopted battery, can adopt super capacitor, can also be both mixing.A among Fig. 8, b, three figure of c represent this three kinds of situations respectively.If super capacitor is wherein arranged,, can provide peak power for load so in conjunction with peak current discharge path 3133.If there is not energy-storage travelling wave tube, system also can work, and this moment, supply power mode was power supply in real time.
Shown in Figure 9 is a kind of structure of present embodiment wireless energy supply system.In conjunction with the previous drawings explanation, Fig. 9 has summarized the realization of whole system on principle.Comprised Fig. 2, Fig. 3, Fig. 6, Fig. 7 and Fig. 8.Operation principle is with aforesaid identical.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a power management device at receiving terminal is used for wireless energy supply system, it is characterized in that, this device comprises energy-storage travelling wave tube and peak current discharge loop, and described energy-storage travelling wave tube comprises super capacitor; And described peak current discharge loop is connected to this super capacitor, is used for after receiving the energy that the super capacitor transmission comes the output peak power.
2. device as claimed in claim 1, it is characterized in that, described device also comprises the circuit that DC-to-DC change-over circuit and low-dropout regulator series connection constitute, and described energy-storage travelling wave tube also comprises battery, and described device is used for receiving energy and the output that the battery transmission comes under the situation that need not peak current discharge loop output peak power.
3. device as claimed in claim 2, it is characterized in that, also comprise charging control circuit, be connected with the circuit that the series connection of described DC-to-DC change-over circuit and low-dropout regulator constitutes, the circuit that described series connection constitutes receives energy and the output that the charging control circuit transmission comes.
4. device as claimed in claim 1 is characterized in that, also comprises charging control circuit, is connected to described energy-storage travelling wave tube, is used for filling energy to energy-storage travelling wave tube.
5. device as claimed in claim 4 is characterized in that, described charging control circuit specifically comprises:
Current rectifying and wave filtering circuit is used for the signal rectification filtering to receiving;
DC-DC transfer circuit is connected to current rectifying and wave filtering circuit, is used to carry out the direct current signal conversion;
Low-dropout regulator is connected to DC-DC transfer circuit, is used for the voltage of signals that stable DC-the DC transfer circuit transmission comes.
The circuit parallel connection that constant voltage constant current charging circuit and DC-DC transfer circuit and low-dropout regulator series connection constitute is used for energy-storage travelling wave tube is charged.
6. device as claimed in claim 1 is characterized in that, also comprises the receiving terminal feedback control module, is used for the signal next according to feedback, adjusts the emission of wireless energy transmitting terminal energy.
7. device as claimed in claim 6 is characterized in that, described receiving terminal feedback control module comprises:
The internal feedback control circuit is used to receive the signal that feedback is come;
The load signal sample circuit is connected to the feedback signal radiating circuit, is used to receive the signal of load feedback;
The feedback signal radiating circuit is connected to internal feedback control circuit and load signal sample circuit, and the signal that is used for sending according to internal feedback control circuit and load signal sample circuit generates feedback signal and emission.
8. device as claimed in claim 1 is characterized in that, comprises that also constant current constant voltage fills the energy module, is used for filling energy to energy-storage travelling wave tube.
9. a wireless energy supply system comprises energy-storage travelling wave tube, it is characterized in that, also comprises the peak current discharge loop, and described energy-storage travelling wave tube comprises super capacitor; And
Described peak current discharge loop is connected to this super capacitor, is used for after receiving the next energy of super capacitor transmission the output peak power.
10. system as claimed in claim 9, it is characterized in that, also comprise the circuit that the series connection of DC-to-DC change-over circuit and low-dropout regulator constitutes, and described energy-storage travelling wave tube also comprises battery, and the circuit that described series connection constitutes is used for receiving energy and the output that the battery transmission comes under the situation that need not peak current discharge loop output peak power.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010159169A CN101834472A (en) | 2010-04-27 | 2010-04-27 | Power management device at receiving terminal and wireless energy supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010159169A CN101834472A (en) | 2010-04-27 | 2010-04-27 | Power management device at receiving terminal and wireless energy supply system |
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| CN101834472A true CN101834472A (en) | 2010-09-15 |
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| CN201010159169A Pending CN101834472A (en) | 2010-04-27 | 2010-04-27 | Power management device at receiving terminal and wireless energy supply system |
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Cited By (6)
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| CN103269132A (en) * | 2013-05-23 | 2013-08-28 | 北京赛易科信息技术有限公司 | Sensor power supply method and power supply device |
| CN103270670A (en) * | 2010-12-27 | 2013-08-28 | Nec东金株式会社 | Electronic equipment, module, and system |
| CN103730939A (en) * | 2012-10-12 | 2014-04-16 | 三星电子株式会社 | Wireless Power Receiver Using Switches to Adjust Power Wirelessly |
| CN104022553A (en) * | 2014-06-20 | 2014-09-03 | 山西科泰微技术有限公司 | Charging circuit of super-capacitor |
| CN105990910A (en) * | 2015-01-28 | 2016-10-05 | 青岛众海汇智能源科技有限责任公司 | Wireless transmission method for dynamic load and receiving end device |
| CN116191616A (en) * | 2023-03-07 | 2023-05-30 | 淮阴工学院 | Wireless charging and discharging adjusting equipment suitable for welding production line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103270670A (en) * | 2010-12-27 | 2013-08-28 | Nec东金株式会社 | Electronic equipment, module, and system |
| CN103730939A (en) * | 2012-10-12 | 2014-04-16 | 三星电子株式会社 | Wireless Power Receiver Using Switches to Adjust Power Wirelessly |
| CN103730939B (en) * | 2012-10-12 | 2017-08-25 | 三星电子株式会社 | Wireless Power Receiver Using Switches to Adjust Power Wirelessly |
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| CN104022553B (en) * | 2014-06-20 | 2016-06-08 | 山西科泰航天防务技术股份有限公司 | Super capacitor charging circuit |
| CN105990910A (en) * | 2015-01-28 | 2016-10-05 | 青岛众海汇智能源科技有限责任公司 | Wireless transmission method for dynamic load and receiving end device |
| CN116191616A (en) * | 2023-03-07 | 2023-05-30 | 淮阴工学院 | Wireless charging and discharging adjusting equipment suitable for welding production line |
| CN116191616B (en) * | 2023-03-07 | 2023-10-20 | 淮阴工学院 | A wireless charge and discharge adjustment device suitable for welding production lines |
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Application publication date: 20100915 |