CN101401322A - Method and apparatus for delivering energy to an electronic device via a wireless link - Google Patents
Method and apparatus for delivering energy to an electronic device via a wireless link Download PDFInfo
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- CN101401322A CN101401322A CNA2007800086369A CN200780008636A CN101401322A CN 101401322 A CN101401322 A CN 101401322A CN A2007800086369 A CNA2007800086369 A CN A2007800086369A CN 200780008636 A CN200780008636 A CN 200780008636A CN 101401322 A CN101401322 A CN 101401322A
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Abstract
A method and apparatus for providing power to e.g., a chargeable device via a radio frequency link. In one aspect, a method of providing power to a chargeable device via radio frequency link comprises generating a substantially un-modulated signal. The method further comprises radiating a substantially un-modulated radio frequency (RF) signal to the chargeable device via a transmit antenna based on the substantially un-modulated signal. The method further comprises powering or charging the chargeable device with power delivered by the substantially un-modulated RF signal.
Description
Priority
The application requires denomination of invention U.S. Patent application the 11/408th identical, that submit on April 21st, 2006, No. 793 priority, U.S. Patent application the 11/408th, required again for No. 793 to submit on January 18th, 2006, name is called the U.S. Provisional Patent Application the 60/760th of " being used for via the method and system of radio link to the electronic equipment charging ", No. 064 priority, each of aforementioned two U.S. Patent applications are incorporated herein by reference herein in full.
Technical field
The present invention is broadly directed to the method and system to power electronic equipment or charging.
Background technology
Nearest technical development makes some electronic equipment such as notebook computer, portable phone and PDA (personal digital assistant) can operate various multimedia application.Yet these new multimedia application need a large amount of electric power to turn round.Not needing electronic equipment is inserted electrical socket to be good schemes of this challenge of reply to the system of these electronic equipment chargings.Any this kind equipment, for example portable phone need not to be connected to power line and just keeps fully charging in convenience and fail safe remarkable advantage is arranged.
Summary of the invention
On the one hand, provide the system that is configured to provide electrical power to rechargeable devices via radio frequency line.This system comprises transmitter, and this emitter is configured to produce the unmodulated substantially signal that is used for rechargeable devices power supply or charging.This system also comprises transmitting antenna, and this transmitting antenna is configured to receive the basic unmodulated signal from transmitter, and emission unmodulated substantially radio frequency (RF) signal is to rechargeable devices.
On the other hand, provide the system that is configured to provide electrical power to rechargeable devices via radio link.This system also comprises first transmitter, and this transmitter configuration one-tenth is launched first signal via first antenna and is used for rechargeable devices power supply or charging.This system also comprises second transmitter, and this transmitter configuration becomes via second antenna emission secondary signal to be used for rechargeable devices power supply or charging, and wherein the combination of first signal and secondary signal is to rechargeable devices power supply or charging.
On the other hand, provide the method that rechargeable devices is provided electric power via radio frequency line.This method also comprises the method that produces basic unmodulated signal.This method also comprises based on basic unmodulated signal launches the method for unmodulated substantially radio frequency (RF) signal to rechargeable devices via transmitting antenna.This method comprises that also the electric power that is transmitted with unmodulated substantially RF signal is powered to rechargeable devices or the method for charging.
On the other hand, provide the method that rechargeable devices is provided electric power via radio frequency line.This method comprises via first antenna launches the method for first signal to rechargeable devices.This method also comprises via the method for second antenna emission secondary signal to rechargeable devices.This method also comprises the method for rechargeable devices being powered or charging with the electric power that combination transmitted of first signal and secondary signal.
Description of drawings
Fig. 1 shows via the skeleton diagram of radio link to an exemplary embodiment of the system of power electronic equipment or charging.
Fig. 2 A, 2B and 2C show the example of the signal of telecommunication, and this signal of telecommunication can be used for transferring electric power by the transmitter 12 of Fig. 1.
Fig. 3 shows to pass on and is used for carrying and transmit the overview of energy to an exemplary embodiment of the system of the radio frequency signals of equipment from antenna.
Fig. 4 is the calcspar that an embodiment of rechargeable devices shown in Figure 1 14 is shown.
Fig. 5 shows via radio link to power devices or to the overview of another exemplary embodiment of the system of electronic equipment charging.
Fig. 6 A, 6B and 6C show two in the same way (in-phase) signal how interfere (interfere constructively) in constructivity ground.
Fig. 7 illustrates that two radio frequency signals of emission are powered simultaneously to rechargeable devices or the calcspar of the embodiment of the system of charging.
Fig. 8 uses and carries the flow chart of the radio signal of energy to the method for power electronic equipment or charging for describing via radio link.
Fig. 9 uses two flow charts that carry the radio frequency signals of energy to the method for power electronic equipment or charging for describing via radio link.
Figure 10 regulates differing between two radio frequency signals for describing, and makes them in phase arrive the flow chart of the method for electronic equipment.
Embodiment
The following detailed description is pointed to some specific embodiment of the present invention.Yet the present invention can be in particular in the many distinct methods that define and cover as claim.In this specification accompanying drawing is quoted, wherein similar part is indicated with same numbers among each figure.
Speech " exemplary " refers to " example, illustration or illustration " here.Here any embodiment that is described as " exemplary " need not to be interpreted as than other embodiment more preferably or more favourable.
Disclosed some embodiment that relates generally to be used for to such as the method and system of the electronic equipment compact power charging of battery.More specifically, these embodiment relate to via radio link, such as by using radio frequency (RF) ripple, provide electric power to described electronic equipment.
Fig. 1 shows via the overview of radio link to the exemplary embodiment of the system of power electronic equipment or charging.In the exemplary embodiment, system comprises one or more transmitters 12, and each transmitter 12 is communicated by letter with one or more transmitting antennas 18.Fig. 1 illustrates one or more electronic equipments 14 and communicates by letter with one or more transmitters 12.
In one embodiment, transmitting antenna 18 can be omnidirectional antenna or directional antenna.Omnidirectional antenna is transmitted radio signal around antenna basically, and directional antenna concentrates on special angle with radio signal, for example less than 180 angles of spending.The signal angle coverage that antenna provided is weighed with the velocity of wave width usually.In another embodiment, wish to use directional antenna as transmitting antenna 18, such as the directional antenna that has the velocity of wave width between the 0.1-20 degree.For example, can about 0.05 degree, 0.1 degree, 0.2 degree, 0.25 degree, 0.3 degree, 0.5 degree, 0.75 degree, 1 degree, 2 degree, 3 degree, 4 degree, 5 degree, 6 degree, 7 degree, 8 degree, 9 degree, 10 degree, 11 degree, 12 degree, 13 degree, 14 degree, 15 degree, 16 degree, 17 degree, 18 degree, 19 degree or 20 degree or more many places select the velocity of wave width.In addition, turn round in the transmitting antenna 18 frequency place that is chosen to the signal launched in suitable gain.
In certain embodiments, the antenna of wishing to select to have high power gain makes and transmits enough electric power to rechargeable devices 14 (referring to Fig. 1) as transmitting antenna 18.In one embodiment, the power gain of transmitting antenna 18 can be about 5 decibels, 6 decibels, 7 decibels, 8 decibels, 9 decibels, 10 decibels, 11 decibels, 12 decibels, 13 decibels, 14 decibels, 15 decibels or 16 decibels (dBd) or more.In this file, dBd term description velocity of wave center power density is the known logarithm ratio of other comparable half-wave dipole antenna power densities relatively.When use had the antenna of 12 decibels of power gains, for example, transmitting antenna 18 can be concentrated the signal that it receives, and made that power gain is about 16 times from the power gain of simple half-wave dipole antenna.
The radio frequency signals that carries power or energy as noted above, that transmitting antenna 18 receives from transmitter 12 is emitted to electronic equipment 14 via radio link 16 with these signals.Electronic equipment 14 can be for comprising media player, PDA(Personal Digital Assistant), portable computer (for example notebook personal computer), mobile phone or portable phone, clock, electronic console or utilizing optional from such as at least one any rechargeable devices or the rechargeable devices not in other any equipment of the electric power of the portable source of rechargeable battery.The energy that explanation and use received of canonical system at least can be at No. the 2005/0194926th, U.S. Patent application and United States Patent (USP) the 6th to the method for electronic equipment 14 power supplies or charging, 127, No. 799 and the 7th, 012, find in No. 405, these are incorporated into as a reference at this.
Fig. 2 A, 2B and 2C show and can be used for the example of signal waveform of transferring electric power by the transmitter 12 of Fig. 1.Fig. 2 A is the X-Y scheme of pure (for example unmodulated substantially) sine wave signal.The longitudinal axis is represented the amplitude of pure sine wave signal and the transverse axis express time.Any for waveform discussed herein, based on context, amplitude can be represented voltage (weighing with volt), electric field strength (weighing with volt per metre), electric current (weighing with ampere) or magnetic field intensity (weighing with ampere per meter (A/m)).As shown, the pure sine wave signal is a periodic function of time.Fig. 2 B is the X-Y scheme of square-wave signal.The longitudinal axis is represented the amplitude of square-wave signal and the transverse axis express time.As shown, square-wave signal is a periodic function of time.Fig. 2 C is the X-Y scheme of frequency modulation sine wave signal.The longitudinal axis is represented the amplitude of frequency modulation sine wave signal and the transverse axis express time.The frequency modulation sine wave signal is shown periodic function of time.In Fig. 2 C, 0-t
1The frequency of FM signal during this time is different from t
1-t
2Frequency during this time.The signal of other waveform comprises for example FM signal shown in continuous wave (CW) simple signal, modulated sinusoid signal rather than Fig. 2 C, and other periodic signal also can be used to carry and send electric power to electronic equipment 14 (referring to Fig. 1).
Should be noted that modulation refer to change carrier signal (for example sinusoidal signal) but the process of measurement characteristics (such as amplitude, frequency or phase place or their some combinations) to convey a message.The variable signal that causes thus is called modulation signal.
In certain embodiments, transmitter 12 is configured to produce basic unmodulated signal, via radio link 16 to carry rechargeable energy (referring to Fig. 1).The example of basic unmodulated signal can for but be not limited to pure sine wave signal as implied above among Fig. 2 A.In one embodiment, pure (for example unmodulated substantially) sine wave signal is used to carry and send charging power.The characteristics of pure sine wave signal are the narrow relatively bandwidth that concentrates on the single substantially fundamental frequency.In another embodiment, other periodic wave signal such as square-wave signal, pulse signal, triangle signal, serrated signal or means of chaotic signals are made up of fundamental sine wave (base sinusoidal wave), can use at least a harmonic sine ripple (harmonic sinusoidal wave).Usually, the fundamental sine wave signal has low-limit frequency, is called fundamental frequency, and it has maximum amplitude usually.Harmonic sine ripple signal have fundamental frequency integral multiple frequency and have amplitude usually less than the fundamental sine wave signal.Because other periodic wave signal comprises at least a harmonic sine ripple signal, they have the bandwidth wideer than pure sine wave signal.Frequency modulation (FM) sinusoidal signal of a signal shown in Fig. 2 C also has the bandwidth wideer than pure sine wave signal, because it comprises the sine wave of basic different frequency.Use the pure sine wave signal to carry energy many other types signal parts that are better than are provided, therefore, it is selected to be better than other substitute in certain embodiments.
In one embodiment, use the pure sinusoid signal, transmitter 12 can advantageously reach high power transmission efficiency.The first, the pure sine wave signal has narrow frequency bandwidth, and this makes antenna and miscellaneous equipment accurately be mated aspect frequency and reaches high power transmission efficiency.The second, the single-frequency purity of transmission beam enables to collimate transmission, restriction wave beam diversity and causes high power transmission efficiency.
Another is exemplified as and uses the pure sine wave signal to come simplified system design and reduction manufacturing cost, because do not need modulation.Further, use the pure sine wave signal that disturbing effect is remained minimum value, because the pure sine wave signal has narrow frequency bandwidth.
Can select at any desirable frequency place to be used for energy-delivering signal, the power level that is suitable for carrying with transmitted power be enough to rechargeable devices 14 chargings.Usually, exemplary radio frequency signals has 3MHz to the frequency between the 30GHz.For example, be used for energy-delivering signal and can be the frequency of about 30MHz, 40MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, 100MHz, 200MHz, 300MHz, 400MHz, 500MHz, 600MHz, 800MHz, 900MHz or 1GHz.
Many factors, technology with non-technology, expose such as the human body RF that FCC allowed, can influence to seek and be used for the search that signal carried and transmitted the frequency of electric power.For example, wish that also the equivalent gap length of reception antenna can be very big.Effective gap length of antenna significantly increases at the low frequency place, because it and square being directly proportional of wavelength.Therefore, the electric power of transmission increases.With the equivalent gap length of square metre antenna of weighing for from the input radio wave, by the ratio of the power density of power (watt) that antenna received and this ripple (watt every square metre).Use lower frequency to give us bigger effective gap length, but then, in stability at lower frequencies, the size of reception antenna such as dipole antenna, for the application such as mobile phone, may become trouble.In one embodiment, can select to have the signal of 1GHz, preferably arrive 36GHz at 12GHz to the frequency between the 40GHz.In another embodiment, can select to have 30MHz, be preferably 88MHz to 108MHz to the frequency between the 300MHz.The scope of frequency band that worldwide is used for FM broadcasting is from 88MHz to 108MHz.This frequency band is divided into 100 channels that have the 200kMZ space.Because transmission involved in the present invention can not disturbed existing FM channel, the dual use of applying for the single-frequency transmission in the space between channel is feasible.For example, transmission discussed herein can be carried out at 100.2MHz frequency place, and each of itself and adjacent channel 100.1MHz and 100.3MHz is at a distance of 100kHz.
Fig. 3 shows to pass on and is used for carrying and transmit the overview of energy to an exemplary embodiment of the system of the radio frequency signals of equipment from antenna.In the exemplary embodiment, transmitting antenna 18 sends the reception antenna 148 of pure sine wave radio frequency signals 17 to rechargeable devices 14.Transmitting antenna 18 can be directional antenna or omnidirectional antenna.
Radio frequency signals (being also referred to as electromagnetic wave) is the synthetic lateral radiation ripple that is produced by electric field wave and magnetic field ripple.Between two parts of antenna, produce electric wave or voltage wave (weighing electric field E) when for example partly there is voltage difference in two of dipole antenna contact rods with volts/meter.When any part of electric current, when for example the major axis of two rods of electric current in dipole antenna flows, produce magnetic wave or current wave (weighing magnetic field H) with amperes per meter through antenna.The product of electric field E and magnetic field H provides the power density of radio frequency ripple (with watts/meter
2Weigh).Usually, polarization of electromagnetic wave (polarization) refers to the spatial orientation of electromagnetic electric field constituent element.The polarization of antenna refers to the polarization of electromagnetic wave that antenna is launched.When the polarised direction of reception antenna is parallel to the electromagnetic electric field orientation of input,, send maximum power to antenna from electromagnetic wave than other orientation of antenna.In No. the 5th, 936,575, United States Patent (USP) at least, disclosed the notion of radio wave polarization, incorporated into as a reference herein.
In certain embodiments, the polarization alinement of the polarization of transmitting antenna 18 and reception antenna 148 is used for the maximum power transmission.Because wish to allow the user that rechargeable devices 14 is placed on the desirable orientation, the polarization of transmitting antenna 18 can be adjusted by the electric field that rotates radio frequency signals 17, is suitable for coupling and arranges.
In one embodiment, transmitting antenna 18 and reception antenna 148 are directional antenna, make that setting up fixing point-to-point radio link is used for transmission.
Fig. 4 is the calcspar that an embodiment of rechargeable devices shown in Figure 1 14 is shown.Equipment 14 can comprise acceptor unit 142 and rechargeable battery 146.Rechargeable battery 146 can be for being configured to supply any electric power energy-storage units of electric power to rechargeable devices 14.Acceptor unit 142 is configured to receive the signal that carries charge power and uses the power that is received to rechargeable battery 146 chargings.Although acceptor unit 142 can be integrated in the rechargeable devices 14 in the exemplary embodiment, acceptor unit 142 can be separate unit, can be connected to various types of rechargeable devices 14 and, chargeable energy is sent to rechargeable devices 14 by wireless or cable by circuit wireless or that cable is set up.
In one embodiment, acceptor unit 142 comprises voltage regulator 154.Voltage regulator 154 can combine with rectifier 152 or except that rectifier 152, is suitable at predetermined level adjustment or the supply on restriction voltage to rechargeable battery 146.When the motion of matter of rechargeable devices 14 caused the signal voltage marked change that reception antenna 148 received, voltage regulator 154 can turn round significantly.This variation may be because the variation of spontaneous emission antenna 18 in the geometry signals path of reception antenna 148.
In one embodiment, receiving element 142 can also comprise pair of diodes 144 and 156, the signal charging that this allows rechargeable battery 146 to be received by wireless charging unit 158 or reception antenna 148.No matter when the wireless charging unit is via the AC power supplies that is wirelessly connected to such as the outlet of standard A c-power supply, and rechargeable battery 146 is by 158 chargings of wireless charging unit.When the wireless charging unit did not provide charging power, rechargeable battery can charge by the signal that reception antenna 148 is received.Can be in the example that finds wireless charging unit 158 such as most chargeable electronic equipments of mobile phone.
In one embodiment, acceptor unit 14 can also comprise the signal power detector 162 of the power density that is used to detect the signal that receives in reception antenna 148 places.The signal power detector can be connected directly to reception antenna 148, be connected to rectifier 152 or adjuster 154.In one embodiment, signal power detector 162 is connected to the signal output that is suitable for surveying from rectifier 152.
As described in conjunction with Fig. 7, transmitting antenna 164 emission expression receives to the signal (referring to Fig. 1) of power density of the charging signals of transmitter 12 then.Transmitting antenna can be directional antenna or omnidirectional antenna.Transmitting antenna 164 can be separated with reception antenna 148 combinations or with reception antenna 148.Have under the situation that is used for radio communication at rechargeable devices 14, transmitting antenna 164 can be the same antenna with the antenna that is used for data communication, also can be different antennae.Many other replacement device are suitable for carrying report to transmit the signal of radio signal strength.For example, this information can rely on luminous ray or invisible ray (Infrared or ultraviolet light), relies on human that can hear or unheard voice signal or audible signal or rely on connecting line to report.
Fig. 5 shows and is used for via the schematic overview of radio link to another exemplary embodiment of the system of power electronic equipment or charging.In this embodiment, system comprises at least two transmitters (not shown among the figure) that are coupled at least two transmitting antenna 18a and 18b respectively, each transmitter pass on be used to carry with energy-delivering unmodulated substantially radio frequency signals with charged electronic equipment.The first transmitting antenna 18a sends the reception antenna 148 of the first radio frequency signals 17A to rechargeable devices 14.The second transmitting antenna 18b sends the second radio frequency signals 17B to reception antenna 148.What these radio frequency signals 17A and 17B can elect the similar Fig. 2 of relating to A, 2B and 2C as is used to transmit the above-mentioned charge power of discussing.These radio frequency signals 17A and 17B can be modulation signal or basic unmodulated signal.In this exemplary embodiment, use pure sine wave radio frequency signals 17A and 17B.In other embodiments, can use to surpass two transmitter, for example can use 3,4,5,6,7,8,9,10 or more transmitter simultaneously.
In certain embodiments, wish that the basic homophase of the first signal 17A and secondary signal 17B arrives reception antenna 148, so that the electric power that rechargeable devices 14 is received maximizes and realize that high efficiency power transmits.When two signals had differing of about 0 degree, they it is said homophase.In one embodiment, except when when being received by reception antenna 18a and 18b, have outside the phase deviation between two signals, the first signal 17A and secondary signal 17B are basic identical.Can calculate phase deviation, make the signal 17A that wins after by its transmitting antenna transmission separately, pass different radio links, arrive reception antenna 148 with differing of about 0 degree with secondary signal 17B.In another embodiment, the first basic unmodulated signal 17A and the second basic unmodulated signal 17B pure sinusoid radio frequency signals that is the same angular frequency.
Fig. 6 A, 6B and 6C show how coherent superposition of two in-phase signals.Fig. 6 A illustrates two identical sinusoidal radio frequency signals with Fig. 6 B, and wherein the amplitude of signal is a periodic function of time.The amplitude of each signal is represented the intensity of the electric field that signal produces.When arriving identical point, this two signal phases mutual interference.Fig. 6 C shows the consequential signal of this interference.Shown in Fig. 6 C, the amplitude that consequential signal has is the twice of the amplitude of each primary signal shown in Fig. 6 A and Fig. 6 B.Because square being directly proportional of the power density of radio frequency signals and electric field strength, the power density of the signal among Fig. 6 C are four times of any one power of considering two signals shown in Fig. 6 A and Fig. 6 B separately.Although use sinusoidal signal in example, modulation signal or basic unmodulated signal for other type can produce similar result.Similarly, although Fig. 6 A is identical with the exemplary signal shown in Fig. 6 B, they must be not identical amplitude for mutual coherent superposition.
Fig. 7 illustrates two radio frequency signals of transmission with simultaneously to the calcspar of the embodiment of the system of rechargeable devices power supply or charging.System 31 comprises generation common clock signal and sends the clock-signal generator 32 of clock signal to controller 34.In one embodiment, clock-signal generator 32 can be an oscillator.Controller 34 can have various embodiment.In one embodiment, controller 34 is a processor, and it can be any suitable general chip microprocessor or multi-disc microprocessor, perhaps any suitable special purpose microprocessor such as digital signal processor, microcontroller or programmable gate array.With traditional the same, processor can be configured to carry out one or more program command.
According to the common clock signal, by transmitter 12a and 12b, controller 34 is coordinated to produce two radio frequency signals 17A and 17B, makes two signals on common time frame.Each transmitter is connected to transmitting antenna separately, and this antenna transfers to rechargeable devices 14 with the radio frequency signals that is received.The radio frequency signals 17A that arrives rechargeable devices 14 then and 17B mutual interference and produce composite signal mutually.Rechargeable devices 14 receives the energy that carries in the composite signal then.The characteristic of radio frequency signals 17A and 17B can with the property class of the signal 17A that discussed among Fig. 5 and 17B seemingly.
In certain embodiments, controller 34 can be followed the trail of the signal strength signal intensity of the chargeable signal of rechargeable devices 14.Discuss as above-mentioned, rechargeable devices 14 can comprise signal power detector 162 and transmitting antenna 164 (referring to Fig. 4).The signal strength signal intensity of the charging signals that signal power detector 162 detection rechargeable devices 14 are received sends the feedback signal of representing these signal strength signal intensities via transmitting antenna 164.System 31 also comprises the reception antenna 38 that is connected to receiver 36.Reception antenna and receiver 36 receive the signal of the signal strength signal intensity at expression rechargeable devices 14 places, will be pushed into controller 34 before the same signal.As has been noted, slave unit to the signal of controller can use up, sound or other method except that radio realize.
In certain embodiments, the desired value of the signal 17A at transmitting antenna place and the phase deviation between the 17B can by in a scope with the skew of the mode control phase that increases progressively and monitor that the corresponding signal intensity of the charging signals that rechargeable devices was received determines.In one embodiment, differing between these signals before these signals are launched, radio frequency signals 17B is identical with radio frequency signals 17A.
In one embodiment, also be used to regulate the polarization of transmitting antenna 18a and 18b, make the polarization alinement (referring to Fig. 3) of its polarization and reception antenna 148 from the feedback signal of rechargeable devices 14.As the discussion of relevant Fig. 3, when the mutual alinement of polarization of two antennas, the power between transmitting antenna and the reception antenna transmits maximization.The orientation of the electromagnetic electric field by rotating transmitting antenna 18a, controller 34 is adjusted the polarization of transmitting antenna 18a in the mode that increases progressively, and for example, spends to 90 degree from 0.Monitoring from the feedback signal of equipment 14 to determine which angle to reach maximum power in transmits.At first, can be to adjust angle to find the near-optimization angle such as the increment of 10 degree.In case determine the near-optimization angle, can be to adjust angle such as the increment of 0.5 degree to find more angle near optimal angle.In case adjust the polarization of the polarization of transmitting antenna 18a, can repeat identical process to adjust polarization such as other transmitting antenna of 18b with matched receiving antenna 148.
There are a lot of methods to adjust the polarization of antenna.In one embodiment, the signal controlling that controlled device 34 is sent, transmitting antenna 12a and 12b are mechanically rotatable.In another embodiment, each root of transmitting antenna 12a and 12b comprises vertically disposed radiated element and horizontally disposed radiated element.Be applied to voltage on the antenna between vertically disposed radiated element and the horizontally disposed radiated element by dividing in the mode that increases progressively and reversing, the polarization of antenna can be spent to 90 degree from 0 and be adjusted.
The foregoing description of method that should be appreciated that the polarization of the polarization of arranging transmitting antenna and reception antenna can be incorporated among the embodiment shown in Figure 3.
Fig. 8 uses and carries the flow chart of the radio frequency signals of energy to the method for power electronic equipment or charging for describing via radio link.Use as relevant Fig. 1, Fig. 3 and Fig. 4 described being used for are carried out this method to the system of electronic equipment charging.
This method begins at square 810 places, and wherein transmitter 12 produces the signal of telecommunication and sends same signal to antenna 18 (referring to Fig. 1).As described in Figure 1, antenna 18 can for orientation or omnidirectional.Next at square 820 places, antenna 18 receives the signal of telecommunication and launches radio frequency signals to rechargeable devices 14 (referring to Fig. 1).About Fig. 2 A, Fig. 2 B and Fig. 2 C, radio frequency signals has been discussed more than.Radio frequency signals can be for modulation or unmodulated substantially.Radio frequency signals can be a single-frequency.In one embodiment, radio frequency signals can be the pure sine wave signal.
Next at square 850 places, in case of necessity, the level of voltage regulator 154 conditioned power signals, as described in Figure 3.Should be appreciated that in certain embodiments and can cancel square 850.At square 860 places, apply power signal at last with rechargeable battery 146 chargings, as described in Figure 3 to rechargeable devices 14.
Fig. 9 describes via radio link, uses two flow charts that carry the radio frequency signals of energy to the method for power electronic equipment or charging.Use as Fig. 5, Fig. 6 and Fig. 7 described being used for are carried out this method to the system that electronic equipment charges.
This method is in the beginning of square 910A place, and wherein the first transmitter 12a produces first signal of telecommunication and sends a signal to the first antenna 18a.Next at square 920A place, the first antenna 18a receives first signal of telecommunication and launches the first radio frequency signals 17A to rechargeable devices 14.Similarly, this method provides square 910B and 920B, and square 910B and 920B carry out simultaneously with square 910A and 920A basically.At square 910B and 920B place, the second transmitter 12b and the second antenna 18b launch the second radio frequency signals 17B to rechargeable devices 14.Transmitter, antenna and RF signal are described identical with Fig. 5, Fig. 6 and Fig. 7.
Next at square 930 places, rechargeable devices 14 receives the composite signal of a RF signal and the 2nd RF signal.At square 940,950,960 and 970, the combination RF signal that is received is used for equipment 14 chargings, and is similar with the discussion of Fig. 8.
Figure 10 describes the flow chart of regulating the method that differs between two radio frequency signals, makes their homophases arrive electronic equipment.In illustrative methods, the signal 17A at transmitting antenna 18a and 18b place and the desired value of the phase deviation between the 17B can be by being offset and monitoring the corresponding signal intensity of the charging signals that rechargeable devices was received with the mode control phase that increases progressively.Make signal 17A and 17B arrive the phase deviation of rechargeable devices 14 corresponding to the highest signal strength at rechargeable devices 14 places or near highest signal strength by homophase.In the exemplary embodiment, this method is applied in the system 31 of two RF signals of emission shown in Figure 7 to the rechargeable devices charging.
This method begins at square 1010 places, and wherein antenna 18a and 18b receive two signals of telecommunication from transmitter 12a and 12b, and two radio frequency signals are emitted to rechargeable devices 14 (referring to Fig. 7).At square 1020 places, rechargeable devices 14 receives two radio frequency signals of combination.Next at square 1030 places, signal power detector 162 detects the signal power p (T) (referring to Fig. 7) that rechargeable devices 14 places receive.The transmitting antenna 164 of equipment 14 sends the feedback signal of the measured signal power of expression to controller 34 then.Forward square 1040 to, via reception antenna 38, receiver 36 receiving feedback signals, and transmission relates to the signal of measured signal power to controller 34.As previously noted, can use other alternative method except that radio to carry this feedback signal.
At square 1050 places, controller 34 determines whether to reach the optimum angle skew, and for example, whether the maximum signal of combination RF signal is received by rechargeable devices 14.The optimum angle skew is to make two radio frequency signals 18a and 18b substantially in phase arrive the phase deviation of rechargeable devices 14.In this square 1050, on behalf of current power, p (T) measure, and p (T-1) representative is right after the preceding mensuration of p (T), and p (T-2) representative is right after the preceding mensuration of p (T-1).If neighbours p (T-2) and p (T) that last power measurement p (T-1) is close on time sequencing greater than it, then controller 34 will infer that having reached optimum angle during last measurement is offset.In one embodiment, if p (T) be greater than or equal to p (T-2) and p (T) the two, then during last measurement, controller 34 can be inferred and reached the optimum angle skew.For two initial mensuration, because at least one among p (T-1) and the p (T-2) is unavailable, controller 34 is configured to infer and does not reach the optimum angle skew.For example, if when they any one can't obtain, can give p (T-1) and p (T-2) 0 default value.If reached the optimum angle skew, method enters square 1080, and wherein these two transmitting antenna 18a continue these two radio frequency signals of emission with 18b according to last setting mutually (phase setting).In certain embodiments, at square 1050 places, if current measured signal power surpasses predetermined value or desired value, for example, the signal power value can mechanically be assessed, and controller 34 may stop the phase place adjustment.
If at square 1050 places, controller 34 is determined p[t-1] be not more than p[t] and p[t-2], this method forwards square 1060 to.At square 1060 places, controller 1060 current phase place settings of storage and the corresponding measured signal of using afterwards.Next at square 1070 places, controller is regulated the phase place setting that is used for these two radio frequency signals.In one embodiment, when regulating another radio frequency signals, the phase place of radio frequency signals remains constant.The phase place of radio frequency signals can increase with the increment of for example 10 degree.Rely on phase place to adjust the required accuracy that reaches, increment can be for big or be little.
In certain embodiments, rechargeable devices 14 can move when the user moves, and therefore, needs controller 34 often to check whether homophase of these two radio frequency signals 18a and 18b.Find correct phase place setting and shown in square 1080 at controller 34, in this phase place these two radio frequency signals of continuation emission are set, this method forwards square 1080 to, its middle controller 34 checks that self-controllers 34 finish last phase adjusted and rise, and whether the time durations of predetermined length T0 (for example 1,2,5,10 or more minutes) passes through.If answer is for negative, this method is back to square 1080.If answer is for affirming that method forwards square 1030 to, its middle controller 34 beginning new round phase places are adjusted.
Above stated specification has carefully been stated some embodiment of the present invention.Yet, should be appreciated that the present invention can put into practice with multiple mode.For example, be used for optimizing electromagnetic phase place and polarization, also have a lot of other to can be applicable to the present invention and the optimization method that need not to deviate from scope and spirit of the present invention at equipment reception antenna place although described spendable method here.Should be noted that when describing some feature of the present invention or aspect the use of particular term is not to mean that redefining term here comprises the feature of the present invention that is associated with this term or any particular characteristics of aspect so that term is restricted to.Although described the present invention, obviously, can make and need not to deviate from spirit widely of the present invention at the various modifications and variations of these embodiment with reference to certain exemplary embodiments.In view of the above, described written explanation comprises any accompanying drawing, is considered to illustrative and not restrictive.
Claims (according to the modification of the 19th of treaty)
1. system that is configured to provide electrical power to power consumption equipment, described system comprises:
Be configured to produce the transmitter that is applicable to the basic single-frequency magnetic signal of described power consumption equipment power supply; With
Be configured to receive from the described signal of described transmitter and launch the transmitting antenna of a magnetic signal.
2. the system as claimed in claim 1, wherein said transmitting antenna comprise and are configured to launch the directional antenna of described magnetic signal to described power consumption equipment via directed path.
3. system as claimed in claim 2, the beamwidth of wherein said directional antenna is between 0.05 degree and 20 degree.
4. the system as claimed in claim 1, wherein said simple signal comprises pure substantially sine wave.
5. the system as claimed in claim 1, wherein said power consumption equipment comprises portable set.
6. the system as claimed in claim 1, wherein said power consumption equipment comprises at least one in the following equipment: media player, personal digital assistant, portable computer, mobile phone or portable phone, clock and electronic console.
7. the system as claimed in claim 1, wherein said power consumption equipment also comprises reception antenna.
8. system as claimed in claim 7, the polarization of wherein said transmitting antenna is conditioned to mate the polarization of described reception antenna.
9. system as claimed in claim 8, wherein the orientation of the described electric field constituent element of the described RF signal of launching by described reception antenna basically with the oriented phase coupling of described reception antenna.
10. system that is configured to provide electrical power to power consumption equipment via radio frequency line, described system comprises:
Be configured to be used for first transmitter to power supply of described power consumption equipment or charging via first antenna transmission, first signal; With
Be configured to be used for second transmitter to power supply of described power consumption equipment or charging via the second antenna transmission secondary signal,
Wherein jointly described power consumption equipment is powered or charging from described first signal of described first transmitter and described second transmitter and the combination of described secondary signal.
11. system as claimed in claim 10, each in wherein said first and second antennas comprises directional antenna.
12. system as claimed in claim 11, wherein the beamwidth of each directional antenna is between 0.05 degree and 20 degree.
13. system as claimed in claim 10, each of wherein said first and second signals comprise unmodulated substantially RF signal.
14. system as claimed in claim 10, each of wherein said first and second signals is made up of unmodulated substantially magnetic signal.
15. system as claimed in claim 10, each of wherein said first and second signals comprises basic simple signal.
16. system as claimed in claim 10, each of wherein said first and second signals is made up of basic simple signal in fact.
17. system as claimed in claim 10, each of wherein said first and second signals is made up of basic simple signal.
18. system as claimed in claim 17, wherein said single-frequency is between 30MHz and 3GHz.
19. system as claimed in claim 17, wherein said single-frequency is between 88MHz and 108MHz.
20. system as claimed in claim 10, each of wherein said first and second signals comprises sinusoidal signal.
21. system as claimed in claim 10, each of wherein said first and second signals is made up of sinusoidal signal in fact.
22. system as claimed in claim 10, each of wherein said first and second signals is made up of sinusoidal signal.
23. system as claimed in claim 10, wherein, each of described first and second signals comprises asemantic basically signal.
24. system as claimed in claim 10, wherein, each of described first and second signals consists essentially of carrier signal.
25. system as claimed in claim 10, wherein, described power consumption equipment comprises at least one in the following portable set: media player, personal digital assistant, portable computer, mobile phone or portable phone, clock and electronic console.
26. system as claimed in claim 10, the amplitude of the combination of wherein said first and second signals are higher than in described first and second signals amplitude of any.
27. system as claimed in claim 10, wherein differing between described first signal in the position of described power consumption equipment and described secondary signal is essentially 0 degree.
28. system as claimed in claim 27, wherein, described power consumption equipment also comprises the charging reception antenna, also comprise controller, described controller is configured to regulate described the differing between described first signal and the described secondary signal, makes that described the differing between described first signal in the position of described charging reception antenna and secondary signal is essentially 0 degree.
29. system as claimed in claim 28, wherein said controller is regulated described differing based on the feedback signal that described power consumption equipment sent, and described feedback signal is represented the power of the described combination of described first and second signals.
30. system as claimed in claim 10, wherein said power consumption equipment also comprises the charging reception antenna.
31. system as claimed in claim 30, wherein said controller is configured to the polarization of described first antenna and described second antenna is adjusted to the polarization of mating described charging reception antenna basically.
32. system as claimed in claim 31, each the orientation of described electric field constituent element of described first and second signals is represented in the described polarization of each of wherein said first and second antennas.
33. one kind provides electrical power to the method for power consumption equipment via radiolink, described method comprises:
Produce basic unmodulated signal; With
Based on described generation step, come via the unmodulated substantially magnetic signal of transmission antennas transmit so that described power consumption equipment is powered or charging based on described basic unmodulated signal.
34. method as claimed in claim 33, wherein said transmitting antenna comprises directional antenna, and described directional antenna is configured to via directed path described basic unmodulated signal is emitted to described power consumption equipment.
35. method as claimed in claim 33, wherein said basic unmodulated signal comprises sine wave signal.
36. method as claimed in claim 33, wherein said basic unmodulated signal is made up of basic simple signal.
37. method as claimed in claim 33, wherein said basic unmodulated signal consists essentially of carrier signal.
38. method as claimed in claim 33 also comprises and uses the electric power that is transmitted by described basic unmodulated signal to described power consumption equipment power supply or charging.
39. method as claimed in claim 33, wherein said power consumption equipment also comprises the charging reception antenna, also comprises the polarization that the polarization of described transmitting antenna is adjusted to the described charging reception antenna of coupling.
40. one kind provides electrical power to the method for power consumption equipment via radiolink, described method comprises:
Launch first signal to power consumption equipment via first antenna;
Launch secondary signal to described power consumption equipment via second antenna; With
The electric power that combination was transmitted with described first signal and described secondary signal is powered or charging to described power consumption equipment.
41. method as claimed in claim 40, also comprise combination described first signal and described secondary signal with to described power consumption equipment charging, and wherein said power supply or charging are adopted on amount than any big described first signal in single described first signal and the described secondary signal and the combination of described secondary signal.
42. method as claimed in claim 40 also comprises and regulates differing between described first signal and the described secondary signal, makes that described the differing between described first signal in the position of described power consumption equipment and described secondary signal is essentially 0 degree.
43. method as claimed in claim 40, each of wherein said first and second antennas comprises directional antenna.
44. method as claimed in claim 40, each of wherein said first and second signals comprises sine wave.
45. method as claimed in claim 40, each of wherein said first and second signals comprises basic unmodulated signal.
46. method as claimed in claim 45, wherein said basic unmodulated signal is made up of basic simple signal.
Claims (54)
1. system that is configured to provide electrical power to rechargeable devices via radio frequency line, described system comprises:
Be configured to produce the transmitter that is used for the basic unmodulated signal of described rechargeable devices power supply or charging; With
The described basic unmodulated signal that is configured to receive from described transmitter is also launched the transmitting antenna of unmodulated substantially radio frequency (RF) signal to described rechargeable devices.
2. the system as claimed in claim 1, wherein said transmitting antenna comprise and being configured to via the directional antenna of the described unmodulated substantially radio frequency signals of directed path emission to described rechargeable devices.
3. system as claimed in claim 2, the beamwidth of wherein said directional antenna is between 0.05 degree and 20 degree.
4. the system as claimed in claim 1, wherein said unmodulated substantially RF signal comprises basic simple signal.
5. the system as claimed in claim 1, wherein said unmodulated substantially RF signal is made up of basic simple signal in fact.
6. the system as claimed in claim 1, wherein said unmodulated substantially RF signal is made up of basic simple signal.
7. system as claimed in claim 4, wherein said single-frequency is between 88MHz and 108MHz.
8. the system as claimed in claim 1, wherein said unmodulated substantially RF signal comprises sine wave.
9. the system as claimed in claim 1, wherein said unmodulated substantially RF signal is made up of sine wave.
10. the system as claimed in claim 1, wherein said unmodulated substantially RF signal is made up of sine wave in fact.
11. the system as claimed in claim 1, wherein said unmodulated substantially RF signal comprises asemantic substantially RF signal.
12. the system as claimed in claim 1, wherein said unmodulated substantially RF signal consists essentially of carrier signal.
13. the system as claimed in claim 1, wherein said rechargeable devices comprises portable set.
14. the system as claimed in claim 1, wherein said rechargeable devices comprises at least one in the following equipment: media player, personal digital assistant, portable computer, mobile phone or portable phone, clock and electronic console.
15. the system as claimed in claim 1, wherein said rechargeable devices also comprises the charging reception antenna.
16. system as claimed in claim 15, the polarization of wherein said transmitting antenna is conditioned to mate the polarization of described charging reception antenna.
17. system as claimed in claim 16, wherein the orientation of the described electric field constituent element of the described RF signal of launching by described reception antenna basically with the oriented phase coupling of described charging reception antenna.
18. a system that is configured to provide electrical power to via radio frequency line rechargeable devices, described system comprises:
Be configured to be used for first transmitter to power supply of described rechargeable devices or charging via first antenna transmission, first signal; With
Be configured to be used for second transmitter to power supply of described rechargeable devices or charging via the second antenna transmission secondary signal,
The combination of wherein said first signal and described secondary signal is to described rechargeable devices power supply or charging.
19. system as claimed in claim 18, each in wherein said first and second antennas comprises directional antenna.
20. system as claimed in claim 19, wherein the beamwidth of each directional antenna is between 0.05 degree and 20 degree.
21. system as claimed in claim 18, each of wherein said first and second signals comprise unmodulated substantially RF signal.
22. system as claimed in claim 18, each of wherein said first and second signals is made up of basic unmodulated signal RF signal.
23. system as claimed in claim 18, each of wherein said first and second signals comprises basic simple signal.
24. system as claimed in claim 18, each of wherein said first and second signals is made up of basic simple signal in fact.
25. system as claimed in claim 18, each of wherein said first and second signals is made up of basic simple signal.
26. system as claimed in claim 25, wherein said single-frequency is between 30MHz and 3GHz.
27. system as claimed in claim 25, wherein said single-frequency is between 88MHz and 108MHz.
28. system as claimed in claim 18, each of wherein said first and second signals comprise sinusoidal RF signal.
29. system as claimed in claim 18, each of wherein said first and second signals are made up of sinusoidal RF signal in fact.
30. system as claimed in claim 18, each of wherein said first and second signals is made up of sinusoidal RF signal.
31. system as claimed in claim 18, wherein, each of described first and second signals comprises asemantic basically RF signal.
32. system as claimed in claim 18, wherein, each of described first and second signals consists essentially of the RF carrier signal.
33. system as claimed in claim 18, wherein, described rechargeable devices comprises at least one in the following portable set: media player, personal digital assistant, portable computer, mobile phone or portable phone, clock and electronic console.
34. system as claimed in claim 18, the amplitude of the combination of wherein said first and second signals are higher than at least one amplitude of described first and second signals.
35. system as claimed in claim 18, wherein differing between described first signal in the position of described rechargeable devices and described secondary signal is essentially 0 degree.
36. system as claimed in claim 35, wherein, described rechargeable devices also comprises the charging reception antenna, also comprise controller, described controller is configured to regulate described the differing between described first signal and the described secondary signal, makes that described the differing between described first signal in the position of described charging reception antenna and secondary signal is essentially 0 degree.
37. system as claimed in claim 36, wherein said controller is regulated described differing based on the feedback signal that described rechargeable devices sent, and described feedback signal is represented the power of the described combination of described first and second signals.
38. system as claimed in claim 18, wherein said rechargeable devices also comprises the charging reception antenna.
39. system as claimed in claim 38, wherein said controller is configured to the polarization of described first antenna and described second antenna is adjusted to the polarization of mating described charging reception antenna basically.
40. system as claimed in claim 39, each the orientation of described electric field constituent element of described first and second signals is represented in the described polarization of each of wherein said first and second antennas.
41. one kind provides electrical power to the method for rechargeable devices via radio frequency line, described method comprises:
Produce basic unmodulated signal; With
Based on described basic unmodulated signal, via the unmodulated substantially radio frequency of transmission antennas transmit (RF) signal with to power supply of described rechargeable devices or charging.
42. method as claimed in claim 41, wherein said transmitting antenna comprises directional antenna, and described directional antenna is configured to via directed path described unmodulated substantially radio frequency signals is emitted to described rechargeable devices.
43. method as claimed in claim 41, wherein said unmodulated substantially RF signal comprises sine wave signal.
44. method as claimed in claim 41, wherein said unmodulated substantially RF signal is made up of basic simple signal.
45. method as claimed in claim 41, wherein said unmodulated substantially RF signal consists essentially of carrier signal.
46. method as claimed in claim 41 also comprises and uses the electric power that is transmitted by described unmodulated substantially RF signal to described rechargeable devices power supply or charging.
47. method as claimed in claim 41, wherein said rechargeable devices also comprises the charging reception antenna, also comprises the polarization that the polarization of described transmitting antenna is adjusted to the described charging reception antenna of coupling.
48. one kind provides electrical power to the method for rechargeable devices via radio frequency line, described method comprises:
Launch first signal to rechargeable devices via first antenna;
Launch secondary signal to described rechargeable devices via second antenna; With
The electric power that combination was transmitted with described first signal and described secondary signal is powered or charging to described rechargeable devices.
49. method as claimed in claim 48 comprises that also described first signal of combination and described secondary signal are to charge to described rechargeable devices.
50. method as claimed in claim 48 also comprises and regulates differing between described first signal and the described secondary signal, makes that described the differing between described first signal in the position of described rechargeable devices and described secondary signal is essentially 0 degree.
51. method as claimed in claim 48, each of wherein said first and second antennas comprises directional antenna.
52. method as claimed in claim 48, each of wherein said first and second signals comprises sine wave.
53. method as claimed in claim 48, each of wherein said first and second signals comprises basic unmodulated signal.
54. method as claimed in claim 53, wherein said basic unmodulated signal is made up of basic simple signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610109019.9A CN105577208B (en) | 2006-01-18 | 2007-01-18 | For the method and system via radio link to power electronic equipment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US76006406P | 2006-01-18 | 2006-01-18 | |
| US60/760,064 | 2006-01-18 | ||
| US11/408,793 | 2006-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610109019.9A Division CN105577208B (en) | 2006-01-18 | 2007-01-18 | For the method and system via radio link to power electronic equipment |
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| CN101401322A true CN101401322A (en) | 2009-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200780005317 Pending CN101438504A (en) | 2006-01-18 | 2007-01-18 | Method and apparatus for delivering energy to an electrical or electronic device via a wireless link |
| CNA2007800086369A Pending CN101401322A (en) | 2006-01-18 | 2007-01-18 | Method and apparatus for delivering energy to an electronic device via a wireless link |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200780005317 Pending CN101438504A (en) | 2006-01-18 | 2007-01-18 | Method and apparatus for delivering energy to an electrical or electronic device via a wireless link |
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| CN104753184A (en) * | 2013-12-31 | 2015-07-01 | 华为技术有限公司 | Transmission sending method, device and system |
| CN109245221A (en) * | 2018-10-12 | 2019-01-18 | Oppo（重庆）智能科技有限公司 | Wireless charging method, system and the wireless charger of mobile terminal |
| CN104205550B (en) * | 2012-04-05 | 2020-04-10 | 罗伯特·博世有限公司 | Wireless energy transmission system |
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| US9559405B2 (en) * | 2009-06-12 | 2017-01-31 | Qualcomm Incorporated | Devices and methods related to a display assembly including an antenna |
| CN102593957A (en) * | 2011-01-18 | 2012-07-18 | 深圳市博巨兴实业发展有限公司 | Wireless charging emitting end, wireless charging receiving end and wireless charging device |
| CN103167588A (en) * | 2011-12-13 | 2013-06-19 | 中兴通讯股份有限公司 | Wireless charging method, wireless base station, terminal and system |
| CN104640178B (en) * | 2013-11-12 | 2018-07-31 | 华为技术有限公司 | A kind of wireless charging method, wireless access point and wireless charging system |
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| CN102792555A (en) * | 2010-03-12 | 2012-11-21 | 三星电子株式会社 | Wireless power charging method and apparatus |
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| CN104205550B (en) * | 2012-04-05 | 2020-04-10 | 罗伯特·博世有限公司 | Wireless energy transmission system |
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| CN101438504A (en) | 2009-05-20 |
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