CN106067688A - Perform the method and device of the wireless charging control of electronic equipment - Google Patents
Perform the method and device of the wireless charging control of electronic equipment Download PDFInfo
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- CN106067688A CN106067688A CN201610255834.6A CN201610255834A CN106067688A CN 106067688 A CN106067688 A CN 106067688A CN 201610255834 A CN201610255834 A CN 201610255834A CN 106067688 A CN106067688 A CN 106067688A
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Classifications
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- H02J7/025—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- Engineering & Computer Science (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides the method and device of a kind of wireless charging control performing electronic equipment.The method comprises determining that whether the voltage level of the direct current output on the DC output end of rectifier in this electronic equipment is positioned at first voltage range, to produce the first detecting result；And it according to this first detecting result, is selectively communicated to a few package, wherein this at least one package is in order to carry the information of at least one wireless charging report of this electronic equipment.The possibility of the wireless charging report data collision of the multiple devices simultaneously carrying out wireless charging can be avoided or be greatly decreased by the present invention.
Description
Technical field
The present invention relates to the use of same wireless charging device to multiple equipment wireless chargings, more particularly, to
Perform the method and device of wireless charging control to electronic equipment.
Background technology
According to correlation technique, traditional wireless power transmission system can include traditional transfer plate (transmitter
Pad), for multiple traditional electronic equipments are wirelessly charged.In order to accurately control charge power, related
Technology is advised the traditional transfer plate in traditional wireless power transmission system and traditional electronic equipment it
Between realize (in-band) or band outer (out-band) communication in band.For in-band communications, use ISM (Industrial
Scientific Medical, industry, science, medical treatment) the two-way in-band communications of frequency band are by FCC (Federal
Communications Commission, FCC) the 15/18th part (i.e. FCC
Part15/18) restriction.Even if at the end of 2013, FCC agrees to that two-way in-band communications are used for pure wireless power
Control, but unidirectional (unidirectional) in-band communications compared with two-way in-band communications when, no matter for one
The supervision in other futures a little, simplicity (simplicity) or cost, unidirectional in-band communications will be first-selected.
Although using the outer two-way communication of band will there is no the problem of government regulation, but some problems (such as may be produced
A little side effects).For example, in the case of realizing above-mentioned out-of-band communication by Bluetooth technology, need respectively to tradition
Transfer plate and traditional electronic equipment in increase the wireless communication components corresponding to bluetooth frequency band, cause being related to
Cost (such as material cost and cost of labor) increases.And for example, owing to using for indigo plant at user stop place
The possible significant increase of the number of devices of the same frequency band of tooth, therefore user (or neighbouring people) may
Suffer frequency band internal channel not enough.It is thus desirable to new mode improves the wireless charging control of electronic equipment.
Content of the invention
The present invention provide a kind of in order to perform electronic equipment wireless charging control method and relevant apparatus with
Solve the problems referred to above.
According to a present invention at least embodiment, provide a kind of method of wireless charging control performing electronic equipment,
The method comprises determining that the voltage level of the direct current output on the DC output end of rectifier in this electronic equipment
It whether is positioned at first voltage range, to produce the first detecting result；And according to this first detecting result,
Being selectively communicated to a few package, wherein this at least one package is in order to carry at least one nothing of this electronic equipment
The information of line charging report.
For example, but not limiting, this at least one package can include that at least one random phase postpones package (example
As one or more random phases postpone package), wherein this at least one random phase postpone in package each with
Machine phase delay package has the random phase delay relative to time slot, and this at least one random phase postpones envelope
Bag is in order to carry the information of at least one wireless charging report of this electronic equipment.For example, the method can be wrapped
Whether the voltage level including the direct current output judging on the DC output end of the rectifier of this electronic equipment is more than
First voltage threshold is to produce this first detecting result, and wherein the first voltage threshold can be with first voltage range phase
Closing, especially it can be the upper limit of first voltage range or lower limit.
According to a present invention at least embodiment, provide the device of a kind of wireless charging control performing electronic equipment,
Wherein this device can include at least a portion (a such as part or overall) of this electronic installation, and this device includes control
Device processed, the voltage level in order to judge the direct current output on the DC output end of rectifier in this electronic equipment is
It no is positioned at first voltage range, to produce the first detecting result；And communication module, it is coupled to this control
Device and the coil of this electronic equipment, wherein this communication module is arranged to according to this first detecting result, choosing
Transmit to selecting property at least one package；Wherein this at least one package is at least one wireless in order to transmit this electronic equipment
The information of charging report.
According to a present invention at least embodiment, provide a kind of method of wireless charging control performing electronic equipment,
The method is by means of the simple response of wireless charging device, and wherein this wireless charging device is in order to set to this electronics
For wirelessly charging, the method includes: receiving package from this electronic equipment, wherein this package is in order to carry this
Electronic equipment wireless charging report information and include unacknowledged header information；And it is wireless to control this
Charging equipment is to produce at least one simple response to confirm this package.
According to a present invention at least embodiment, provide a kind of dress performing wireless charging control according to said method
Putting, wherein this device includes at least a portion of this electronic equipment.
According to a present invention at least embodiment, provide a kind of method of wireless charging control performing electronic equipment,
The method includes by means of variable slot time, the method: this electronic equipment and wireless charging device it
Between perform package transmission, wherein this wireless charging device is arranged to wirelessly charge this electronic equipment, and
At least one package that this package transmits is in order to carry the information of at least one wireless charging report of this electronic equipment；
And the time slot controlling the transmission of this package is variable.For example, the time slot of control package transmission is variable includes
Length for this time slot of multiple pre-conditioned changes.
One of benefit of the invention is that disclosed method and apparatus can be avoided or be greatly decreased and carries out nothing simultaneously
The possibility of the wireless charging report data collision of multiple devices of line charging, in addition, the present invention is taken off
The method and apparatus of dew can be come by easy one-way communication control technical scheme rather than any both-way communication specification
Wireless power transmission system is made to maintain the operation of power control cycle.
Read the preferred embodiment illustrating in each accompanying drawing detailed further below after, these of the present invention
Will become clear from undoubtedly for a person skilled in the art with other purposes.
Brief description
Fig. 1 is the schematic diagram of the device carrying out wireless charging control according to embodiments of the present invention；
Fig. 2 is the schematic diagram of wireless power transmission system according to embodiments of the present invention；
Fig. 3 is the flow chart of the method carrying out wireless charging control according to embodiments of the present invention；
Fig. 4 according to embodiments of the invention exemplified with the schematic diagram of the control program in method shown in Fig. 3；
Fig. 5 is according to another embodiment of the present invention exemplified with the schematic diagram of control program of method shown in Fig. 3；
Fig. 6 is according to embodiments of the present invention exemplified with the schematic diagram of situation of two equipment of method shown in Fig. 3；
Fig. 7 is according to embodiments of the present invention exemplified with the schematic diagram of control program of the method shown in Fig. 3；
Fig. 8 one embodiment of the invention is exemplified with the schematic diagram of the dynamical system control program in method shown in Fig. 3；
Fig. 9 embodiments of the invention are exemplified with the system control scheme based on priority in the method shown in Fig. 3
Schematic diagram；
Figure 10 is exemplified with the side carrying out wireless charging control to electronic equipment according to another embodiment of the present invention
The flow chart of method；
Figure 11 embodiments of the invention are exemplified with the operating process of method shown in Figure 10；
Figure 12 according to another embodiment of the present invention exemplified with the operating process of method shown in Figure 10；
Figure 13 another embodiment of the present invention performs to electricity exemplified with the simple response by means of wireless charging device
The flow chart of the method for the wireless charging control of subset；
Figure 14 is according to embodiments of the invention showing exemplified with the simple response control program of method shown in Figure 13
It is intended to；
Figure 15 according to embodiments of the invention exemplified with the schematic diagram of the simple response of method shown in Figure 13；
Figure 16 according to another embodiment of the present invention exemplified with the schematic diagram of the simple response of method shown in Figure 13；
Figure 17 according to another embodiment of the present invention exemplified with the schematic diagram of the simple response of method shown in Figure 13.
Detailed description of the invention
Employ some vocabulary in the middle of specification and follow-up claim and censure specific assembly.Ability
Territory those skilled in the art are it is to be appreciated that electronic equipment set manufacturer may call same group with different nouns
Part.This specification and follow-up claim not by the difference of title be used as difference assembly in the way of, and
It is the benchmark being used as difference with assembly difference functionally.In specification in the whole text and follow-up claim
" including " mentioned by the middle of is open term, therefore should be construed to " including but not limited to ".Additionally,
" coupling " word is to include any directly and indirectly electrical connection at this.Therefore, if described in literary composition
First device is electrically connected at the second device, then represent this first device and may be directly connected to this second device,
Or it is coupled indirectly to this second device by other devices or connection means.
Refer to Fig. 1, Fig. 1 is automatically controlled for carrying out wireless charging to electronic equipment according to a first embodiment of the present invention
The schematic diagram of the device 100 of system.Wherein this device 100 includes at least a portion of this electronic equipment (such as portion
Divide or whole).For example, this device 100 can include a part for above-mentioned electronic equipment, in more detail, permissible
It is at least one hardware circuit, at least one integrated circuit (Integrated in such as this electronic equipment
Circuit, IC) and its interlock circuit.Again for example, this device 100 can be the whole of above-mentioned electronic equipment.
Again for example, this device 100 can include the system containing this electronic equipment (such as the nothing containing this electronic equipment
Linear heat generation rate transmits system).The example of this electronic equipment can include but is not limited to: mobile phone is (such as many work(
Can mobile phone), personal digital assistant (personal digital assistant, PDA) and such as on knee
(laptop) personal computer of computer.
As it is shown in figure 1, device 100 can include controller 110 (such as microprocessor), detecting module 120 with
And communication module 130, its middle controller 110 is coupled to detecting module 120 and communication module 130, and leads to
Letter module 130 may be coupled to coil (coil), the power input line circle (Fig. 1 is not shown) of such as electronic equipment.
According to this embodiment, controller 110 is used for carrying out wireless charging control.In addition, detecting module 120 is used
Operate (such as current sense operation and/or detecting voltage operation) in carrying out some detectings to controller 110.Additionally,
Communication module 130 is for by utilizing above-mentioned coil (the power input line circle of all electronic equipments described above)
Carry out package transmission for controller 110.
In more detail, in order to carry out wireless charging control operation, electronic equipment by wireless charging in the case of,
Controller 110 can carry out input power estimation, to produce the information of the power being received by wireless charging.
The example of this wireless charging control operation can include but is not limited to: increases charge power, reduces charging work(
Rate, and carry out exotic detecting (foreign object detection, FOD).With regard to wireless charging technology
(such as FOD) realizes details, and more information refer to WPC (Wireless Power Consortium, nothing
Line charge alliance) Qi V1.1 standard.
Fig. 2 is the schematic diagram of wireless power transmission system 200 according to embodiments of the present invention.Wherein device 100
At least a portion (as partly or entirely) of wireless power transmission system 200 can be included.For example, device 100
The part of wireless power transmission system 200 can be included, in more detail, can be in above-mentioned electronic equipment
Wireless charging receiver 100R (for succinctly, it is also possible to be referred to as receiver), it means that device 100 is permissible
Including all components in the wireless charging receiver 100R shown in Fig. 2.Again for example, device 100 can include
The part of wireless power transmission system 200, in more detail, can be the whole of above-mentioned electronic equipment, this
Mean that device 100 can include all components in this electronic equipment.Again for example, this device 100 can be
This wireless power transmission system 200 whole.
As in figure 2 it is shown, in addition to this wireless charging receiver 100R, wireless power transmission system 200 can
Farther include wireless charging device, be such as configured with the transfer plate 20 of power output winding 28.In order to more preferably
Understanding, power output winding 28 can be illustrated as outside this transfer plate 20.This is merely for the sake of explanation
Purpose, be not meant to limitation of the present invention.According to some changes of this embodiment, power inputs
Coil 28 can be integrated in transfer plate 20.According to this embodiment, except the 110th, above-mentioned controller is detectd
Surveying outside module 120 and communication module 130, wireless charging receiver 100R can farther include that power is defeated
Enter coil the 38th, match circuit the 40th, rectifier 50 and low dropout voltage regulator (low dropout regulator, LDO)
60, wherein detecting module 120 may be coupled to the specific level (specific stage) of wireless charging receiver 100R,
In more detail, direct current (direct current, DC) the output T21 of rectifier 50 can be coupled to, with
And two exchange (alternating current, AC) input T11 and T12 of rectifier 50 are respectively coupled to
Two ends to power input line circle 38.In this embodiment, the terminal T22 of rectifier 50 can regard
For earth terminal, and two end T21 and T22 can be used to couple next stage, such as voltage-stablizer LDO 60.
In more detail, rectifier 50 can be from power input line circle 38 by two AC input T11 and T12
Obtain AC input, and this AC of rectification input is to provide DC output at DC output T21, such as
DC level Vrect relative to the earth level at terminal T22 (i.e. earth terminal) place.For example, when this transmission
When plate 20 passes through power input line circle 38 to electronic equipment wireless charging, can be from this power input line circle 38
Obtain this AC input.
In practice, match circuit 40 can include some impedance components, such as some electric capacity.In addition, this
The detecting module 120 of individual embodiment can include electric current inductive reactance R, wherein this electric current inductive reactance R
One of two ends (such as its left end in this embodiment) are coupled to the DC output T21 of rectifier 50, electricity
The other end (such as its right-hand member in this embodiment) in the two ends of stream inductive reactance R is coupled to rectifier 50
The DC input of next stage, the left upper end of the voltage-stablizer LDO 60 in such as this embodiment.For example,
Detecting module 120 can farther include analog-digital converter (analog-to-digital converter, ADC),
In this embodiment, this ADC is integrated in detecting module 120 and is coupled to the electric current sense of detecting module 120
Answer resistance R.In more detail, detecting module 120 can be with two of detecting current inductive reactance R ends between
At least one voltage difference (for example one or more voltage difference), and above-mentioned in available detecting module 120
ADC (not illustrating at Fig. 2) analogs to numeral conversion at least one above-mentioned voltage difference, to produce
The digital output signal of raw detecting module 120, wherein in this embodiment, digital output signal can carry
Corresponding at least one digital value (for example one or more digital value) of at least one voltage difference above-mentioned, and
This digital output signal is output to controller 110.Owing to the amplitude of the electric current by electric current inductive reactance R can
With by removing this at least one data signal (digital form of at least one voltage difference above-mentioned can be considered as)
Obtaining with the resistance of this electric current inductive reactance R, therefore the digital output signal of detecting module 120 is (more detailed
At least one digital value above-mentioned that is thin, that carried by digital output signal) can indicate by rectifier 50
The electric current of DC output T21 output.As the result of some correlation computations, controller 110 can be to wireless charging
At least a portion (as partly or entirely) of electricity receiver 100R, such as this wireless charging receiver 100R's
At least one level (such as one or more levels), carries out power estimation.
Based on the framework shown in Fig. 2, can be from left side (as Fig. 2 leftmost side is marked with " input of DC power "
Input) electricity is transmitted step by step to the right (as Fig. 2 rightmost side is marked with the output of " output of DC power ")
Can, wherein it may happen that power attenuation in some levels of this framework.Controller 110 can be estimated wireless
The reception power of at least a portion (as partly or entirely) of charging receiver 100R, such as this wireless charging
The reception power of at least one level (such as one or more levels) of receiver 100R, and can be by being related to
Assembly (such as communication module the 130th, match circuit the 40th, power input line circle 38 and power output winding 28)
Sending at least one (as one or more) wireless charging to report to transfer plate 20, the report of this wireless charging is all
At least one of at least one estimate (such as one or more estimates) of corresponding above-mentioned reception power in this way
Receive power report.Therefore, it can be appropriately performed wireless charging control in each case.
According to this embodiment, voltage-stablizer LDO 60 can be as the next stage of rectifier 50.This is only
Illustratively, it is not meant to limitation of the present invention.According to some changes of this embodiment,
This voltage-stablizer LDO 60 can omit, and some circuit of above-mentioned electronic equipment can directly utilize above-mentioned
DC output, all DC voltage level Vrect described above.
In order to be best understood from, the framework shown in Fig. 2 exemplified with above-mentioned electronic equipment by this transfer plate 20 wireless charging
The scheme of electricity.This is merely for illustrative purposes, and is not meant to limitation of the present invention.According to this
Embodiment some change, the framework shown in Fig. 2 can with extended illustrate above-mentioned electronic equipment multiple (as
Two or be more than two) copy is by other schemes of this transfer plate 20 wireless charging simultaneously.So, at these
In change, wireless power transmission system 200 can include multiple copies of wireless charging receiver 100R, such as
The wireless charging of the above-mentioned copy at multiple electronic equipments by transfer plate 20 wireless charging for the identical time receives
Device.For simplicity, the similar description of these changes is no longer repeated here in details.
Fig. 3 is the method 300 carrying out wireless charging control according to embodiments of the present invention to above-mentioned electronic equipment
Flow chart.Method 300 shown in Fig. 3 can be applied to device 100 (in more detail, Fig. 2 institute shown in Fig. 1
The wireless power transmission system 200 of the embodiment shown), and can apply to controller 110 therein.Should
Method can be described as follows.
In the step 310, controller 110 determines at least one (as one or more) random value, should be with
Machine value is reported (such as with regard at least one (as one or more) wireless charging of electronic equipment for control
In embodiment shown in Fig. 2 at least one wireless charging report) package delivery time point.For example, exist
At least one random value above-mentioned represents that multiple random value and at least one wireless charging report expression above-mentioned will be
A series of time slots send wireless charging device (e.g., wireless power transmission system 200 to Fig. 2 embodiment
In transfer plate 20) the report of multiple wireless charging in the case of, the plurality of random value can make at this one be
Package delivery time point in each time slot in row time slot is random.
In step 320, (in more detail, determine in step 310 based at least one random value above-mentioned
At least one random value), controller 110 utilizes communication module 130 to send at least one (as one or more)
Random phase delay package, wherein each the random phase at least one random phase delay package above-mentioned
Position postpone package have with regard to time slot (such as corresponding time slot) random phase postpone, and above-mentioned at least
One random phase postpones package and is used for carrying at least one wireless charging above-mentioned report (in more detail, step
In 310 at least one wireless charging report) information.For example, each random phase delay package above-mentioned
Phase delay can be defined as this random phase of the beginning measurement from corresponding time slot and postpone the opening of package
The retardation of head.This is merely for illustrative purposes, and is not meant to limitation of the present invention.Again for example,
The phase delay that each above-mentioned random phase postpones package can be defined as the beginning measurement from corresponding time slot
This random phase postpone the ratio of retardation and the length of this time slot of beginning of package.At some other
Example in, the reference point for measuring above-mentioned phase delay in corresponding time slot can be changed.
No matter being applied which definition of the phase delay of each phase delay package above-mentioned, above-mentioned at least one
Individual random value represents above-mentioned multiple random value and the above-mentioned multiple nothings of at least one wireless charging report expression above-mentioned
In the case of line charging report, at least one random phase above-mentioned postpones package and can represent in a series of time slots
The multiple random phase transmitting postpones package.Additionally, based on the plurality of random value, controller 110 utilizes logical
Letter module 130 send multiple random phase postpone package, and control respectively in a series of time slot multiple with
The phase delay that machine postpones package makes it random.Therefore, have simultaneously by this transfer plate 20 wireless charging
During multiple copies of this electronic equipment (such as two or be more than two), owing to data collision is typically due to two
Data packet between individual or more equipment transmits simultaneously, and institute is with the inventive method and relevant apparatus is (such as side
Method 300 and device 100) can stop from by the wireless charging report envelope of multiple equipment of wireless charging simultaneously
The data collision of bag, or the data collision significantly reducing the wireless charging report package of the plurality of equipment is general
Rate.
Note that the operation of step 310 and the operation of step 320 can be distinguished as shown in Figure 3.This is only
It is descriptive purpose, be not meant to limitation of the present invention.According to some changes of this embodiment, step
At least a portion (partly or entirely) of the operation of rapid 310 and at least a portion (portion of the operation of step 320
Divide or whole) can carry out simultaneously.
According to this embodiment, based at least one above-mentioned random value, controller 110 utilizes communication module
130 send above-mentioned at least one (one or more) random phase postpones package to wireless charging device, such as
Transfer plate 20, and do not obtain information by any package from wireless charging device.For example, wireless charging device
Do not send any package to this electronic equipment, and wireless charging device can to receive above-mentioned at least one random
Phase delay package.Therefore, method and the relevant apparatus (such as method 300 and device 130) of the present invention can lead to
Cross simple one-way communication control program to make the power control cycle of wireless power transmission system 200 work,
Regulation from any two-way communication.Wherein appoint when wireless charging device (such as transfer plate 20) does not send
During what modulated signal (signal as with regard to wireless charging), it is possible to decrease power attenuation.Compared with prior art,
The method of the present invention and relevant apparatus can ensure overall performance, and overcome existing problem (as cost increases
Problem, the problem that passage is not enough in frequency band).
In some embodiments of the invention, based at least one random value above-mentioned, controller 110 utilizes logical
Letter module 130 sends at least one (as one or more) random phase above-mentioned and postpones package to wireless charging
Equipment (such as transfer plate 20), controls operation with the related wireless charging triggering wireless charging device, such as above-mentioned
Any wireless charging control operation.In more detail, wireless charging device is by package detection window
The specific random phase of detecting postpones package in (packet detection window), receive above-mentioned at least
One random phase postpones this specific random phase in package and postpones package (as multiple random phases postpone
One of package).For example, the length of this package detection window can be equal to predetermined value.This is merely for the sake of saying
Bright purpose, is not meant to limitation of the present invention.Again for example, the length of this package detection window and step
The ratio of the length of rapid 320 time slots mentioned (such as corresponding time slot) can be more than or equal to 1.
In another example, wireless charging device (such as transfer plate 20) is for simultaneously to electronic equipment and another
One electronic equipment (copy of such as this electronic equipment) wireless charging.When wireless charging device is in this envelope
In the presence of bag detection window detects data collision, wireless charging device can stop to use this package to detect immediately
Survey window, and by postponing package to receive in the next random phase of next package detection window detecting
At least one random phase above-mentioned postpones this next one random phase in package and postpones package.
In another example, wireless charging device (such as transfer plate 20) is for simultaneously to electronic equipment and another
One electronic equipment (copy of such as this electronic equipment) wireless charging.When wireless charging device is in this envelope
In the presence of bag detection window detects data collision, wireless charging device is discardable from above-mentioned specific random phase
Position postpones the information that package obtains.
According to some examples of the present invention, electronic equipment can send at each slot time (slot time) to be had
The package of random delay, at least one random phase such as above-mentioned postpones the arbitrary package in package, Qi Zhongshang
State the time interval (time interval) that slot time can represent time slot (time slot).For example, all as above
The size stating the package detection window mentioned can be more than or equal to the slot time of 2 times, and may be configured as
Effective power control circulation (control loop) of wireless power transmission system 200.This is merely for the sake of explanation
Purpose, be not meant to limitation of the present invention.In another example, all packages described above are detected
The size of window may be generally equal to or greater than slot time, and may be configured as wireless power transmission system 200
Effective power control circulation.
In practice, when simultaneously by multiple equipment of wireless charging (as above-mentioned by transfer plate 20 wireless charging simultaneously
Multiple copies of electronic equipment of electricity) each package in the package (as random phase postpones package) that sends
When all can be correctly decoded, wireless power transmission system 200 (more specifically, transfer plate 20) can determine nothing
The power control cycle of linear heat generation rate transmission system 200 is effective.In addition, wireless power transmission system 200
(more detailed, transfer plate 20) is by (being such as determined as effective above-mentioned power in effective power control circulation
Control circulation) in collect the information that obtains from these equipment, suitable power rise amount can be determined (as wireless
Charge power increments) or suitable power decreasing amount (such as wireless charging power decrement).
Note that and appointed by checking whether the package obtaining at all as noted above power control cycle exists
What decoding error, wireless power transmission system 200 (more detailed, transfer plate 20) can determination data collision
Whether occur.For example, when when there is decoding error in this power control cycle, wireless power transmission system
200 (more detailed, transfer plate 20) determine to there occurs data collision.Once send out at this power control cycle
The data collision being referred to alternatively as erroneous interpretations, wireless power transmission system 200 (in more detail, transfer plate are given birth to
20) typically ignore the previous message of decoding in same package detection window, and determine that this power controls
Circulation becomes invalid.For example, power control operation is by time-out with the time of saving, and wireless charging device is (all
Such as transfer plate 20) this package detection window of use of termination immediately as above, in more detail, jump immediately
Cross this package detection window.By producing the new package detection window of such as next package detection window,
When next power control cycle is effective, wireless power transmission system 200 (more detailed, transfer plate 20)
Related wireless charging control operation and the gain regaining power control operation can be recovered.
Fig. 4 according to embodiments of the invention exemplified with the schematic diagram of the control program in method 300 shown in Fig. 3.
Wherein transfer plate 20 two equipment shown in Fig. 4 simultaneously (i.e. equipment 1 and equipment 2) wireless charging, should
Two copies of the such as above-mentioned electronic equipment of two equipment.
According to this embodiment, the equipment 1 shown in Fig. 4 as the example of above-mentioned electronic equipment in the case of,
The first row shaded block in the sequential chart (timing chart) of equipment 1 can prolong as above-mentioned multiple random phases
The example of slow package, and related a series of time slot of using of equipment 1 can be continuous print and periodic,
Wherein the cycle of these periodic time slots is labeled as " slot time " (Slot Time) in the diagram.For
Equipment 1, the phase delay that each random phase above-mentioned postpones package can be defined as the beginning institute from corresponding time slot
This random phase of measurement postpones the retardation of the beginning of package, and can be labeled as " random in the diagram
Time delay ".In addition, equipment 2 as the example of above-mentioned electronic equipment in the case of, equipment 2 when
The second row shaded block in sequence figure can postpone the example of package, and equipment 2 as above-mentioned multiple random phases
The related a series of time slot using can be continuous print and periodic, the wherein week of these periodic time slots
Phase is labeled as " slot time " at Fig. 4.For equipment 2, each random phase above-mentioned postpones the phase place of package
Delay can be defined as the delay of the beginning of this random phase delay package of the beginning measurement from corresponding time slot
Amount, and can be labeled as " random delay time " in the diagram.As shown in Figure 4, package detection window can wait
In two slot times (i.e. the slot time of twice), and when each package at this package detection window
When all decoding correct, this package detection window will be considered effective power control circulation.For sake of simplicity, this
The similar repetition describing no longer detail of individual embodiment.
Fig. 5 is according to another embodiment of the present invention exemplified with the signal of control program of method 300 shown in Fig. 3
Figure.Wherein transfer plate 20 two equipment shown in Fig. 5 simultaneously (i.e. equipment 1 and equipment 2) wireless charging,
Two copies of all above-mentioned electronic equipments in this way of this two equipment.
According to this embodiment, the equipment 1 shown in Fig. 5 as the example of above-mentioned electronic equipment in the case of,
Wherein the first row shaded block in the sequential chart of equipment 1 postpones the model of package as above-mentioned multiple random phase
Example, related a series of time slots that equipment 1 uses can be continuous print and periodically, wherein, these weeks
The cycle of the time slot of phase property is labeled as " slot time " in Figure 5.For equipment 1, above-mentioned each is random
This random phase that the phase delay of phase delay package can be defined as the beginning measurement from corresponding time slot is prolonged
The retardation of the beginning of slow package.In addition, equipment 2 as the example of above-mentioned electronic equipment in the case of,
Wherein the second row shaded block in the sequential chart of equipment 2 postpones the example of package as above-mentioned multiple random phases,
And related a series of time slot that equipment 2 uses can be continuous print and periodic, wherein, these cycles
The period indicia of the time slot of property is " slot time " of Fig. 5.For equipment 2, each random phase above-mentioned is prolonged
This random phase that the phase delay of slow package can be defined as the beginning measurement from corresponding time slot postpones package
The retardation of beginning.As it is shown in figure 5, once there is data collision in power control cycle, trigger
The decoding error of this power control cycle corresponding, then the previous message decoding in same package detection window
To be ignored and this power control cycle will become invalid.In practice, power control operation will suspend
Until ensuing power control cycle (for example next power control cycle) is decided to be effectively, same with this
When, generate at least one (as one or more) new package detection window.It for succinctly, is used for herein
The similar description of this embodiment does not repeat in detail.
According to embodiment, the change of all embodiments as shown in Figure 5, due to the power control among considering
Circulation can be from original power control cycle (power control cycle shown near such as the leftmost side of Fig. 5)
Being converted to ensuing power control cycle, such as next power control cycle is (near Fig. 5 rightmost side
Shown power control cycle), therefore power control operation can suspend until the power control cycle in consideration
Become effective.For succinctly, the similar description for this embodiment herein does not repeat in detail.
Fig. 6 is according to embodiments of the present invention exemplified with the signal of situation of two equipment of method 300 shown in Fig. 3
Figure.Wherein, transfer plate 20 equipment 1 shown in Fig. 6 simultaneously and equipment 2 (such as above-mentioned electronic equipment
Two copies) wireless charging.
According to this embodiment, two packages of equipment 1 and equipment 2 are (such as the random phase from equipment 1
Postpone package and the random phase from equipment 2 postpone package) between the probability of data collision can be according to
Following manner calculates.Assume equipment 1 and equipment 2 each package length when axle on be equal to 10ms, on
The slot time (for example, the cycle of a series of time slots) stated is equal to 100ms.Postpone unit etc. in random phase
In the case of 1ms, equipment 1 and data collision probability in the single time slot time for the equipment 2
PDATA COLLISIONCan be expressed as follows:
PDATA COLLISION(equipment 1, equipment 2)=(20/100)=0.2；
Some wherein can be applied to suppose.This is merely for illustrative purposes, and is not meant to the present invention
Restriction.At some in other example, thus it is possible to vary each in two packages of equipment 1 and equipment 2
Package length on a timeline (for example, the random phase from equipment 1 postpone package length, from
The random phase of equipment 2 postpones the length of package) at least a portion (partly or entirely), above-mentioned time slot
Time (cycles of such as a series of time slots), random delay unit.
In order to be best understood from, with regard to above-mentioned calculating, the random phase from equipment 1 postpones package and can be illustrated as
The random time point being positioned on the sequential chart of equipment 1, and in different situations, at the sequential chart of equipment 2
On from equipment 2 random phase postpone package position can be variable, from the sequential chart of equipment 2
On a random time point to another random time point change.This is merely for illustrative purposes, and
Do not mean that limitation of the present invention.According to the change of this embodiment, the random phase from equipment 2 is prolonged
Slow package can be illustrated as the random time point being positioned on the sequential chart of equipment 2, and in different situations,
The position that the random phase from equipment 1 on the sequential chart of equipment 1 postpones package can be variable, from
A random time point on the sequential chart of equipment 1 changes to another random time point.
Fig. 7 is according to embodiments of the present invention exemplified with the schematic diagram of control program of the method 300 shown in Fig. 3.
Wherein, symbol Tx can represent the conveyer in wireless power transmission system 200, all wireless chargings described above
Equipment (such as transfer plate 20), symbol Rx can represent the receiver in wireless power transmission system 200, such as
Above-mentioned electronic equipment.
It according to this embodiment, the arrow shown in dotted line, for example, is marked with " gating (strobe) ", " power
The arrow of lifting/lowering " (referring to " power rising " or " power drop "), can be considered above-mentioned power control operation
Signal；Gating signal " gates ", power raises signal " power liter " and power drop signal " power fall "
All do not include any package, and be not related to package transmission.For example, gating signal " choosing in this embodiment
Logical " length can be equal to 400ms, and at power rising signal " power liter " of this embodiment and work(
The length of any one in rate dropping signal " power fall " can be equal to 500ms.In addition, the arrow shown in non-dashed
Head, for example, be marked with the arrow of " startup package ", " random package " etc., can be considered as receiver Rx and send
Package；Wherein start package and can be used to the startup to conveyer Tx notice receiver Rx, and seal at random
Bag can be considered that above-mentioned multiple random phases postpone the example of package.For example, this embodiment starts package
The length that length can be equal to arbitrary random package in 20ms, and this embodiment can be equal to 250ms.
As it is shown in fig. 7, gating signal " gates " can trigger receiver Rx ingoing power increasing state (succinctly
For the sake of, Fig. 7 is labeled as the circle of " power-liter "), and receiver Rx opens for controller 110
Main power source, allowing controller 110 to carry out wireless charging control, and start wireless charging control phase place
" test load (test load) ", to test the wireless charging receiver 100R's being coupled in receiver Rx
Load.Afterwards, receiver Rx can enter DC-DC open state (for example, for sake of simplicity, mark in Fig. 7
Circle for " DCDC-opens "), and start wireless charging control phase place shown near Fig. 7 lower-left
" DCDC-opens ", to carry out the associative operation with regard to wireless charging control, wherein receiver Rx is likely encountered
Different situations, such as power drop situation " PWR-Dn ", power are suitable for or moderate (power ok) situation
" PWR-OK ", power raise situation " PWR-Up ".In addition, as shown near Fig. 7 upper right corner, transmit
Device Tx is initially in stand-by state.Afterwards, when receiving the startup package from receiver Rx, conveyer
Tx can enter wireless charging control phase place shown near Fig. 7 upper right and " start ", to initialize.Then,
Conveyer Tx can enter wireless charging control phase place shown near Fig. 7 lower right corner and " control ", to close
In the associative operation of wireless charging control, wherein conveyer Tx can run into different situation, such as power drop shape
Condition " PWR-Dn ", power rising situation " PWR-Up ", the moderate situation of power " PWR-OK ", and after
Person (power is suitable for situation) may be with target voltage control (for sake of simplicity, be labeled as " V at Fig. 7targetControl
System ") related.For example, receiver Rx can detect mistake and enter wireless charging control phase place " mistake ", and
And conveyer Tx can enter wireless charging control phase place and " protect " the protection operation to be related to.Succinct
Seeing, the similar description of this embodiment is not repeated in detail.
According to some embodiments, wireless power transmission system 200 can include that wireless charging receiver 100R is many
Individual copy, is carried out the wireless charging of multiple copies of the electronic equipment of wireless charging for example simultaneously by transfer plate 20
Electricity receiver { 100R}.For example, when wireless charging receiver when the quantity of 100R} is more than 4, by
In there is too many data collision, fixing time slot will no longer be suitable for system control, therefore, implements at these
In at least a portion (as partly or entirely) of example, perform the wireless of electronic equipment by variable slot time
Charge control method can solve this problem.
Fig. 8 one embodiment of the invention is shown exemplified with the dynamical system control program in method 300 shown in Fig. 3
It is intended to.For example, according to one group of Control of Voltage parameter, such as some predetermined voltage threshold Vrect_max,
Vrect_high, Vrect_set, Vrect_low and Vrect_boot, dynamical system control program can be applicable to
{ in Rx}, such as multiple power receiving units PRU_1 and PRU_2, dynamically to control reception for multiple receivers
Device each receiver (such as power receiving unit PRU_1 and each receiving unit in PRU_2) in Rx},
Wherein { each receiver in Rx} includes the wireless charging receiver 100R's shown in Fig. 2 to the plurality of receiver
Copy, and this predetermined voltage threshold Vrect_max, Vrect_high, Vrect_set, Vrect_low and
Vrect_boot can be the predefined parameter monitoring DC voltage level Vrect.As shown in Figure 8,
Vrect_max>Vrect_high>Vrect_set>Vrect_low>Vrect_boot.It is noted that it is real at other
Execute in example, predetermined voltage threshold Vrect_max, Vrect_high, Vrect_set, Vrect_low and
The value of Vrect_boot can change, and not limits as shown in Figure 8.In addition, multiple power receiving units
PRU_1 and PRU_2 can be as the plurality of receiver { examples of Rx}, but this is only for illustration purpose, is not
The restriction of the present invention, in other embodiments, { Rx} can have different implementations to receiver.
When the DC voltage level Vrect in power receiving unit PRU_1 with PRU_2 is more than predetermined voltage
Threshold value Vrect_max or during less than predetermined voltage threshold Vrect_boot, power receiving unit PRU_1 with
PRU_2 all may produce fault, and when DC voltage level Vrect is more than predetermined voltage threshold
Vrect_high or during less than predetermined voltage threshold Vrect_low, then have the risk of damage.Real according to some
Executing example, embodiment as shown in Figure 8 or subsequent embodiment, device 100 (espespecially controller 100) can determine directly
Stream voltage level Vrect whether be positioned at by predetermined voltage threshold Vrect_max, Vrect_high, Vrect_set,
Predetermined voltage range defined in Vrect_low and Vrect_boot the 420th, in 440 and 430 any one
In, to change generation a series of detecting result, wherein predetermined voltage range the 420th, 440 and 430 over time
Powered down state PWR-Dn, moderate state PWR-OK of power and power rise shape can be respectively corresponding to
State PWR-Up.Additionally, change over, device 100 (espespecially controller 110) is transmittable is loaded with instruction letter
Breath a series of wireless charging report (as above-mentioned at least one wireless charging report) with by correlation behavior (under power
The moderate state of fall state, power and power rise state) inform wireless charging device (such as transfer plate 20).Cause
This, wireless charging device (such as transfer plate 20) can perform corresponding operation respectively, as reduced charge power, maintenance
Charge power and increase charge power.
As shown in Figure 8, it is assumed that the DC voltage level Vrect of power receiving unit PRU_1 receives with power
The DC voltage level Vrect of unit PRU_2 is positioned in predetermined voltage range 440 at specific time point,
And when this particular point in time the DC voltage level Vrect of power receiving unit PRU_1 close to predetermined voltage
Threshold value Vrect_set and the DC voltage level Vrect of power receiving unit PRU_2 are close to predetermined voltage threshold
Vrect_high.If when future time point, the DC voltage level Vrect dimension of power receiving unit PRU_1
It is fixed and the DC voltage level Vrect of power receiving unit PRU_2 rises and is positioned at predetermined voltage range to keep steady
In 420, then power receiving unit PRU_2 has the risk of harm.According to dynamical system control program, by referring to
The different time-gap time of fixed corresponding different predetermined voltage range, there is the power receiving unit of the risk of harm
The power control of PRU_2 can have the higher priority of power receiving unit PRU_1 than harmless danger.
For example, the slot time corresponding to predetermined voltage range 440 can be more than corresponding to predetermined voltage range
The slot time of 420 and 430.Therefore, including the wireless charging telegram that transmitted of power receiving unit PRU_2
The random package accused has and may be less likely to occur data collision in current package detection window, and can be immediately
Perform power to power receiving unit PRU_2 with the risk of harm to control, thus power receiving unit
The DC voltage level Vrect of PRU_2 can be drawn back into predetermined voltage range 440 in time.
In certain embodiments, predetermined voltage threshold Vrect_max, Vrect_high, Vrect_set, Vrect_low
And Vrect_boot can be respectively 17.5V, 15.0V, 9.0V, 7.0V and 4.0V, but this is only example
Illustrate, and the restriction of non-invention.
Fig. 9 embodiments of the invention control exemplified with the system based on priority in the method 300 shown in Fig. 3
The schematic diagram of scheme.In addition to the dynamical system control program shown in Fig. 8, correspond respectively to different excellent
The implementation detail of the charging control of first stage is equally applicable in the device 100 of the present embodiment, and different is excellent
First stage can the such as first priority (priority 1), the second priority (priority 2), third priority (excellent
First level 3) and the 4th priority (priority 4).
As it is shown in figure 9, except predetermined voltage threshold Vrect_max, Vrect_high, Vrect_set, Vrect_low
And Vrect_boot, one group of Control of Voltage parameter mentioned in Fig. 8 embodiment can farther include that one is pre-
Fixed voltage threshold Vrect_uvlo, wherein Vrect_boot > Vrect_uvlo, represent under-voltage locking at this uvlo
(under voltage lock out,UVLO).In Fig. 9 exemplified with predetermined voltage threshold Vrect_max,
Vrect_high, Vrect_set, Vrect_low, Vrect_boot and Vrect_uvlo and Vrect_max >
Vrect_high > Vrect_set > Vrect_low > Vrect_boot > Vrect_uvlo, but this is only example explanation,
And the restriction of non-invention.In other embodiments, predetermined voltage threshold Vrect_max shown in Fig. 9,
Vrect_high, Vrect_set, Vrect_low, Vrect_boot and Vrect_uvlo can change.
In addition, high voltage range, optimum voltage scope and low voltage range (for the sake of Jian Bian, also or point
Another name is high voltage, optimum voltage or low-voltage) can respectively as the predetermined voltage range shown in Fig. 8 the 420th,
The example of 440 and 430, and overvoltage (over voltage) scope and under-voltage (under voltage)
Scope (for the sake of Jian Bian, also or be called overvoltage or under-voltage) can be as the predetermined voltage range shown in Fig. 8
The example of the additional predetermined voltage range outside 420 and 430.According to this embodiment, high voltage range, optimal
Voltage range and low voltage range can the opening of corresponding electronic equipment, and overvoltage scope and under-voltage
Scope can correspond respectively to system mistake state and the dummy status (null state) of electronic equipment.As described above,
When DC voltage level Vrect is more than predetermined voltage threshold Vrect_max or is less than predetermined voltage threshold
It may happen that fault during Vrect_boot, and if DC voltage level Vrect is more than predetermined voltage threshold
Vrect_high or less than during predetermined voltage threshold Vrect_low it may happen that risk of damage.In order to reduce as far as possible
Side effect is to reach the optimal overall efficiency of electronic equipment, and device 100 (espespecially controller 110) can monitor multiple
The direct current piezoelectricity of each receiving unit in power receiving unit (such as power receiving unit PRU_1 and PRU_2)
Flat Vrect simultaneously performs to correspond respectively to the charging control of different priorities degree, and priority degree can such as first
Priority (priority 1), the second priority (priority 2), third priority (priority 3) and the 4th are preferential
Level (priority 4), wherein aforesaid plurality of priority respectively corresponds respectively to the DC voltage of each power receiving unit
Overvoltage scope, high voltage range, low voltage range and optimum voltage scope defined in level Vrect.
Therefore, following target OBJ (1), OBJ (2), OBJ (3) and OBJ (4) can complete according to following order:
OBJ (1): avoid the DC voltage level Vrect of each power receiving unit to enter overvoltage scope (example
As the DC voltage level Vrect > predetermined voltage threshold Vrect_max of a power receiving unit, stood
I.e. reduce the DC voltage level Vrect of this power receiving unit)；
OBJ (2): reduce the DC voltage level Vrect of the power receiving unit relating in time so that, at this
Power receiving unit reports its DC voltage level Vrect higher than after predetermined voltage threshold Verct_high, direct current
Voltage level Vrect should become less than (in 5 seconds or another Preset Time) in of short duration Preset Time or etc.
In predetermined voltage threshold Vrect_high；
OBJ (3): if target OBJ (1) is satisfied with OBJ (2), then guarantee the direct current of all power receiving units
Voltage level Vrect is more than predetermined voltage threshold Vrect_low and makes less than predetermined voltage threshold Vrect_high
Power receiving unit all obtains best power；And
OBJ (4): if target OBJ (1), OBJ (2) meet with OBJ (3), then control the transmitting of transfer plate 20
Device coil current ITX_COIL (for example through the electric current of power output winding 28) is to complete following target:
OBJ (4-1): most preferably turn to the DC voltage level Vrect of each power receiving unit, power inputs
Coil 38 has the highest utilization rate of input power Prect, or
OBJ (4-2): make the system whole effect of wireless power transmission system 200 maximize.
For example, the arbitrary power receiving unit in multiple power receiving units is due to its direct current piezoelectricity
The abnormal maximum moment of flat Vrect causes fault (the DC voltage level Vrect of such as this power receiving unit
In the range of being positioned at overvoltage) when, owing to the charging control corresponding to the first priority (such as priority 1) is more right than respectively
Should be in the second priority (such as priority 2), third priority (such as priority 3) and the 4th priority (as preferentially
Level 4) charging control faster must implement, therefore device 100 (espespecially controller 110) can save this work(in time
Rate receiving unit.
In some instances, the arbitrary power receiving unit in multiple power receiving units is due to higher straight
Flow voltage level Vrect and there is risk of damage (the DC voltage level Vrect position of such as this power receiving unit
In high voltage range) when, because the charging control corresponding to the second priority (such as priority 2) is more corresponding than respectively
In third priority (such as priority 3) and the 4th priority (such as priority 4) charging control faster must implement, because of
First this device 100 (espespecially controller 110) can save this power receiving unit, as long as other power receives single
Unit does not all suffer from overvoltage scope.
In some instances, the arbitrary power receiving unit in multiple power receiving units is due to relatively low straight
Stream voltage level Vrect (the DC voltage level Vrect of such as this power receiving unit is positioned at low voltage range)
And when there is risk of damage, as long as other power receiving units all do not enter into overvoltage scope and do not appoint
What power receiving unit has risk of damage because having higher DC voltage level Vrect, then because of correspondence
In the charging control of third priority (such as priority 3) than corresponding to the charging of the 4th priority (such as priority 4)
Control faster must be implemented, and therefore device 100 (espespecially controller 110) can save this power receiving unit in time.
According in this embodiment, predetermined voltage threshold Vrect_boot represents for entering starting state (boot
State-entry) voltage threshold, and predetermined voltage threshold Vrect_uvlo represents and is used for exiting starting state (boot
State-exit) voltage threshold.For example, when DC voltage level Vrect is less than predetermined voltage threshold
(now can be considered low-voltage or under-voltage) during Vrect_boot, then this electronic installation of No starting, and this could
It is considered as above-mentioned under-voltage locking UVLO.
Figure 10 is exemplified with the side carrying out wireless charging control to electronic equipment according to another embodiment of the present invention
The flow chart of method 600, wherein the method 600 shown in Figure 10 can be applicable to the device 100 shown in Fig. 1 (especially
It is, the wireless power transmission system 200 of embodiment illustrated in fig. 2), and can be applicable to the control in device 100
Device 110.The method is described as follows.
In step 610, controller 110 determines the DC output end T21 of rectifier 50 in this electronic equipment
On direct current output voltage level, such as DC voltage level Vrect, if be positioned at first voltage range with
Produce the first detecting result.For example, controller 110 judges the direct current of rectifier 50 in this electronic equipment
Whether the voltage level of the direct current output on output T21 is more than the first voltage threshold, to produce the first detecting
As a result, wherein the first voltage threshold is relevant with first voltage range；More specifically, the first voltage threshold can be
One upper limit of first voltage range or a lower limit.
In step 620, according to the first detecting result, controller 110 utilizes communication module 130 selectivity
Ground transmits at least one package (such as one or more packages), and wherein this at least one package is in order to carry this electronic equipment
At least one wireless charging report information.The example of above-mentioned at least one package includes but is not limited to, and at least one
Random phase postpones package (as one or more random phases postpone package), and wherein this at least one random phase is prolonged
Each package in slow package has random phase relative to time slot (such as corresponding time slot) to postpone, and this at least one with
Machine phase delay package is reported (such as one or more wireless chargings in order at least one wireless charging carrying electronic equipment
Telegram accuse) information.
With regard to being selectively communicated to a few package described in step 620, " optionally " highlight transmission or
Not transmitting the selective option of this at least one package, this representative may choose whether to transmit this at least one package.
Therefore, according to the first detecting result, controller 110 can determine whether to transmit this at least one package.Citing comes
Saying, when this first detecting result indicates that this voltage level is positioned at first voltage range, controller 110 can profit
Transmit this at least one package by communication module 130.And in another example, when the first detecting result instruction electricity
Voltage level is positioned at outside first voltage range, controller 110 can stop communication module 130 transmit this at least one
Package, but this merely illustrative explanation, and the restriction of non-invention.According to other embodiments, due to controller
110 operate according to the first detecting result, and whether controller 110 transmits this at least one package depends on that first detects
Survey whether result indicates that this voltage level is positioned at first voltage range.
In this embodiment, according to the first detecting result, controller 110 can be not from wireless charging device
Obtained under information state by any package, utilize communication module 130 optionally transmit this at least one with
Machine phase delay package (as one or more random phases postpone package) to this wireless charging device (such as transfer plate
20).For example, wireless charging device does not transmit any package to this electronic equipment, and this wireless charging
Electricity equipment still have received this at least one random phase and postpones package.In other examples, according to the first detecting
As a result, controller 110 can utilize communication in the case of not receiving any package from wireless charging device
Module 130 optionally transmits this at least one package, and (such as this at least one random phase postpones package (example
As one or more random phases postpone package)) to this wireless charging device (such as transfer plate 20).Therefore,
The method that disclosed herein and relevant apparatus (such as method 600 and device 100) can pass through easy one-way communication
Control program rather than any both-way communication specification makes wireless power transmission system 200 maintain power control cycle
Operation, wherein when wireless charging device (such as transfer plate 20) does not transmit any modulated signal (such as wireless charging
Electricity) when can reduce power attenuation.Compared with prior art, method and the relevant apparatus that disclosed herein can
Ensure overall efficiency, and the problem being met with in prior art can be avoided (as cost increases and frequency band internal channel
Number deficiency).
According to some embodiments, when the voltage level of the first detecting result instruction direct current output is (such as direct current piezoelectricity
Flat Vrect) not at when in first voltage range, during more specifically, be not more than this first voltage threshold, control
Device 110 processed can determine to control at least one random value of the sequential that package transmits, this package transmission be with regard to
At least one wireless charging report described in step 620.Additionally, according to this at least one random value (espespecially in step
This at least one random value being determined in 310), controller 110 utilizes communication module 130 to transmit such as step
This at least one random phase mentioned by 620 postpone package this at least one package (as relative to time slot have with
At least one package of machine phase delay) to this wireless charging device (such as transfer plate 20), set to trigger wireless charging
Standby related wireless charging control operation.Therefore, this at least one random phase in step 620 postpones package
Can represent that this at least one random phase in step 320 postpones package.
According to some embodiments, controller 110 can determine voltage level that this direct current exports (such as direct current piezoelectricity
Flat Vrect) it whether is positioned in the second voltage range.Additionally, determine voltage level that this direct current exports (such as direct current
Voltage level Vrect) it whether is positioned at prioritization among first voltage range higher than determining that this direct current is defeated
Whether this voltage level going out is positioned at the prioritization in the second voltage range, wherein the former can correspondence extremely
The first priority (such as priority 1) as described in Fig. 9 embodiment, and the latter can be corresponding to such as Fig. 9 embodiment institute
The second priority (such as priority 2) stated.
According to some embodiments, controller 110 can determine voltage level that this direct current exports (such as direct current piezoelectricity
Flat Vrect) it whether is positioned in the second voltage range to produce the second detecting result.Additionally, according to first and second
Detecting result, the controllable slot time being used in package to be transmitted of controller 110 is for corresponding to the first voltage
The first of scope is preset slot time or corresponding to the second voltage range second and presets slot time.For example,
Second presets slot time can preset slot time more than or equal to first.
According to some embodiments, the first voltage threshold can be located at the predetermined electricity of first in multiple predetermined voltage range
Pressure scope (first voltage range as the aforementioned) and the second predetermined voltage range (the second voltage range as the aforementioned) it
Between, wherein, the first predetermined voltage range is higher than the second predetermined voltage range.For example, multiple predetermined electricity
Pressure scope can include the overvoltage scope as described in the embodiment of Fig. 9, high voltage range, optimum voltage scope,
Low voltage range and cross low-voltage (or under-voltage) scope, and the first predetermined voltage range and second pre-
Determine voltage range and each can represent overvoltage scope and high voltage range.Additionally, controller 110 can determine
This direct current output voltage level whether be positioned at the plurality of predetermined voltage range one of them with produce at least one
Detecting result (such as one or more detecting results), wherein this at least one detecting result can include the first detecting knot
Really.According to one or more embodiments, determine the voltage level (such as DC voltage level Vrect) that this direct current exports
It whether is positioned at the prioritization among first voltage range higher than this voltage level determining the output of this direct current
Whether being positioned at the prioritization in the second voltage range, wherein the former can be corresponding to such as Fig. 9 embodiment institute
The first priority (such as priority 1) stated, and the latter can be corresponding to the second priority as described in Fig. 9 embodiment
(such as priority 2).
According to some embodiments, according at least one detecting result (such as one or more detecting results), controller 110
The controllable slot time being used in package to be transmitted in corresponding extremely the plurality of predetermined voltage range wherein it
The one of one presets slot time (such as the cycle of 25 milliseconds or another time span).For example, defeated at direct current
The voltage level (such as direct voltage output Vrect) going out falls under the situation in this first predetermined voltage range, control
Device 110 processed can be controlled for first pre-for corresponding to the first predetermined voltage range of the slot time of the first package
If slot time (such as the cycle of 25 milliseconds or another time span), such as in some above-mentioned embodiments,
Corresponding this to this first voltage range first presets slot time.For another example, in direct current output
Voltage level (such as direct voltage output Vrect) fall under the situation in this second predetermined voltage range, control
Device 110 can be controlled for the slot time of the second package for presetting corresponding to the second of the second predetermined voltage range
Slot time (such as the cycle of 250 milliseconds or another time span), such as in right in some above-mentioned embodiments
Slot time should be preset in the second of the second voltage range, wherein second preset slot time can be more than first pre-
If slot time.
According to some embodiments, the plurality of predetermined voltage range can include the 3rd predetermined voltage range, such as Fig. 9
Low voltage range described in embodiment, wherein this second predetermined voltage range is higher than the 3rd predetermined voltage model
Enclose.For example, the voltage level (such as direct voltage output Vrect) in direct current output falls into the 3rd predetermined electricity
Under situation in pressure scope, controller 110 can be controlled for the slot time of the 3rd package for corresponding to the 3rd
The 3rd of predetermined voltage range presets slot time (such as the cycle of 250 milliseconds or another time span), wherein should
3rd presets slot time can be equal to this and second preset slot time.According to one of these embodiments or many
Individual embodiment, determines whether the voltage level (such as DC voltage level Vrect) of direct current output is positioned at the second voltage
Whether the prioritization among scope is positioned at tertiary voltage model higher than this voltage level determining direct current output
Prioritization in enclosing, wherein the former may correspond to the second priority as described in Fig. 9 embodiment (as excellent
First level 2), and the latter may correspond to the third priority (such as priority 3) as described in Fig. 9 embodiment.
According to some embodiments, multiple predetermined voltage range can include the 4th predetermined voltage range, such as Fig. 9
Optimum voltage scope described in embodiment, wherein the 4th predetermined voltage range is positioned at the second predetermined voltage range
And between the 3rd predetermined voltage range.For example, this direct current output voltage level (as DC voltage is defeated
Go out Vrect) it is positioned under the situation in the 4th predetermined voltage range, controller 110 can be controlled for the 4th package
Slot time for corresponding to the 4th of the 4th predetermined voltage range preset slot time (as 2000 milliseconds or another
The cycle of time span), wherein the 4th preset slot time and can preset slot time more than the 3rd.According to these
One or more of embodiment embodiment, determines voltage level that this direct current exports (such as DC voltage level
Vrect) it whether is positioned at the prioritization among tertiary voltage scope higher than this electricity determining the output of this direct current
Whether voltage level is positioned at the prioritization in the 4th voltage range, and wherein the former can be corresponding to such as Fig. 9 in fact
Execute the third priority (such as priority 3) described in example and the latter can be corresponding excellent to the 4th as described in Fig. 9 embodiment
First level (such as priority 4).
Figure 11 embodiments of the invention exemplified with the operating process 700 of method 600 shown in Figure 10, wherein this behaviour
Make flow process 700 can be applicable to multiple power receiving unit each unit (such as power receiving unit PRU_1 and
PRU_2)。
In step 720, controller 110 can check whether DC voltage level Vrect is more than predetermined voltage threshold
Value Vrect_max is to produce the first detecting result, and wherein predetermined voltage threshold Vrect_max can be as the first electricity
The example of pressure threshold value.As the first detecting result instruction Vrect > Vrect_max, then enter step 712；No
Then enter step 720.
In step 712, the transmittable package without random delay of controller 110, and control this related mark
Head (header) with carry (or carrying secretly) in order to indicating the predetermined header content " OVP " of excessive voltage condition OVP, and
Controlling this related time-slot time (as the slot time of the first package to be sent) further is 25 milliseconds.
In step 720, controller 110 can check level after LPF for the DC voltage level Vrect
Whether Vrect_lpf is more than predetermined voltage threshold Vrect_high, to produce the second detecting result.For example,
Voltage level Vrect_lpf after LPF for the DC voltage level Vrect can pass through to direct current piezoelectricity
A succession of historical values of flat Vrect performs rolling average and is obtained, but this is only example and illustrates, not this
Bright restriction.According to other deformation of this embodiment, electricity after LPF for the DC voltage level Vrect
Flat Vrect_lpf also can be obtained by additive method.As the second detecting result instruction Vrect_lpf > Vrect_high
When, enter step 722；Otherwise enter step 730.
In step 722, transmittable package (at least such as step 620 with random delay of controller 110
Random phase postpones the package in package), and control related header is to carry (or carrying secretly) in order to indicated horsepower
The default header content " DN " of decline condition PWR-Dn, and control further this related time-slot time (as with
Slot time in the second package to be sent) it is 250 milliseconds.
In step 730, controller 110 can check level after LPF for the DC voltage level Vrect
Whether Vrect_lpf detects result less than predetermined voltage threshold Vrect_low to produce the 3rd.When the 3rd detecting
Result instruction Vrect_lpf < during Vrect_low, enters step 732；Otherwise enter step 740.
In step 732, the transmittable package with random delay of controller 110 is (such as step 620 at least
One random phase postpones the package in package), and control related header is to carry on (or carrying secretly) indicated horsepower
The default header content " UP " of condition PWR-Up of liter, and control the related time-slot time further (as being used for treating
The slot time of the 3rd package transmitting) it is 250 milliseconds.
In step 740, controller 110 is transmittable have random delay a package (as step 620 this extremely
A few random phase postpones the package in package), and control related header is to carry (or carrying secretly) indicated horsepower
The default header content " OK " of temperate condition PWR-OK, and control related data further to include
Parameter such as Vrect_error (it can represent rectifier voltage mistake, the i.e. mistake of DC voltage level Vrect),
(it can represent the maximum work that rectifier 50 allows for Prect (it can represent the power output of rectifier 50), Pmax
Rate) etc., and control this related time-slot time (slot time as the 4th package to be sent) further
It is 2000 milliseconds.
According to some embodiments, when the transmitter line loop current ITX_COIL of transfer plate 20 maintains transmitter
During nominal current ITX_nominal, it is considered to power receiving unit will be referred to as the 4th by uniformity test
Priority (priority 4).If additionally, in one or more of these embodiments, this power receiving unit is not propped up
Hold power adjustment functions, then this power receiving unit (especially controller 110) can only power output and not to work(
Rate makes any change.
Figure 12 according to another embodiment of the present invention exemplified with the operating process 800 of method 600 shown in Figure 10, its
Middle operating process 800 can be applicable to transmitter Tx, such as power delivery unit (Power Transmitting Unit,
PTU) (such as this wireless charging device such as transfer plate 20), especially, can be applicable to the control of transmitter Tx
The control circuit (the such as control circuit of transfer plate 20) of circuit processed, such as power delivery unit.For example,
Power delivery unit can receive a package, step 712 such as in operating process 700 shown in Figure 11, the 722nd,
The package being transmitted in a certain step in 732 and 740, and may be in response to received package, control
Power delivery unit at least one target power receiving unit (such as one of the plurality of power receiving unit or many
Individual unit) the wireless charging power that transmits.It is noted that in order to make it easy to understand, power delivery unit can be made
For the example of transmitter Tx, but this merely illustrative explanation, and the restriction of non-invention.According to some embodiments,
Transmitter Tx can have different implementations.
Step 810, the control circuit of power delivery unit can check whether that passing through received package have received
Preset header content " OVP " (for example, being denoted as in Figure 12 receiving " OVP "), or transfer plate can be detected
Transmitter currents Itx (for example, the transmitter line loop current ITX_COIL described in above-described embodiment) of 20 is
No not stopping switches (toggling).When have received default header content " OVP " or transmitter currents Itx does not stops to cut
Change, then enter step 812；Otherwise enter step 820.
In step 812, the control circuit of this power delivery unit can be at breech lock fault (latching fault)
State, to reduce the wireless charging power transmitting to target power receiving unit.For example, when being received
Package by the first package in a succession of received package when, wherein every in this succession of reception package
One package carries default header content " OVP ", and the control circuit of power delivery unit initially enters breech lock fault
State.In some instances, when the package being received at this in a succession of received package but be not
During one package, power delivery unit persistently maintains breech lock malfunction.
It is noted that owing to the related time-slot time (for example, is used for waiting to transmit by target power receiving unit
The slot time of the first package) control is 25 milliseconds, and 25 milliseconds for setting in operating process 700
Minimum slot time in all slot times, the charging control corresponding to the first priority (such as priority 1) will
Can than corresponding to the second priority (such as priority 2), third priority (such as priority 3) and the 4th priority (as
Priority 4) control faster play a role.
In step 820, the control circuit of power delivery unit checks whether that passing through received package have received
Preset header content " DN " (reception " DN " for example, indicating in Figure 12).When have received default header content
When " DN ", then enter step 822；Otherwise enter step 830.
In step 822, due to related time-slot time (for example, the slot time for the second package to be sent)
Being controlled as 250 milliseconds, the control circuit of power delivery unit can connect to target power in every 250 milliseconds of minimizings
Receive the wireless charging power (power drop for example, indicating in Figure 12) that unit transmits.
In step 830, the control circuit of power delivery unit is passed through to be received in checking whether every 500 milliseconds
Package have received default header content " UP " (for example, in Figure 12 indicate reception " UP ").When every 500
Have received default header content " UP " in Hao Miao, then enter step 832；Otherwise enter step 840.
In step 832, there is data collision in checking whether 500 milliseconds in the control circuit of power delivery unit,
If there is data collision in 500 milliseconds, then reenter step 830；Otherwise enter step 834.
In step 834, the control circuit of power delivery unit can connect to target power in every 500 milliseconds of increases
Receive the wireless charging power (power rise for example, indicating in Figure 12) that unit transmits.
In step 840, the control circuit of power delivery unit is passed through to be received in checking whether every 4000 milliseconds
Package have received default header content " OK " (for example, in Figure 12 indicate reception " OK ").If every 4000
Receive in millisecond and preset header content " OK ", then enter step 842；Otherwise reenter step 810.
In step 842, this control circuit of power delivery unit occurs data to touch in being confirmed whether 4000 milliseconds
Hitting, if there is data collision in 4000 milliseconds, then reentering step 840；Otherwise enter step 844.
In step 844, the control circuit of power delivery unit can be increased or decreased to mesh in every 4000 milliseconds
The wireless charging power (power rise/decline for example, indicating in Figure 12) that mark power receiving unit transmits.Cause
This, the control circuit of power delivery unit can will have the target power receiving unit of peak power utilization rate
Rectifier voltage mistake Vrect_error of DC voltage level Vrect minimizes, to reach above-mentioned target
OBJ (4-1), and/or make overall system efficiency optimize to reach above-mentioned target OBJ (4-2).
According to some embodiments, operating process 700 and 800 can be utilized as discussed above.By corresponding respectively to not
The charging of same priority controls to dynamically change slot time, can be greatly decreased and correspond respectively to different classification
Such as 1 (Cat 1) that classify, classification 2 (Cat 2), classification 3 (Cat 3) and the average of 4 (Cat 4) of classifying
Power power consumption.For example, when setting this slot time as 250 milliseconds, this mean power power consumption with point
The 1st, class is classified the 2nd, to classify and 3 can be respectively the 0.15%th, the 0.30%th, 0.60% with the ratio of special datums of classification 4
With 1.5%；When slot time changes into 2000 milliseconds, then the 0.04%th, the 0.08%th, the 0.02%th, percentage be respectively
And 0.19%.For another example, when setting slot time as 250 milliseconds, this mean power power consumption
2nd, classify with classification the 1st, classification and 3 be respectively the 0.33%th, the 0.66%th, 1.32% with the ratio of special datums of classification 4
With 3.30%, and when this groove time changes into 2000 milliseconds, then the 0.08%th, the 0.04%th, percentage be respectively
0.17% and 0.41%.
Figure 13 another embodiment of the present invention performs to electricity exemplified with the simple response by means of wireless charging device
The flow chart of the method 900 of the wireless charging control of subset.Method 900 shown in Figure 13 can be applicable to all
Such as the wireless charging device (it can be as the example of power delivery unit) of transfer plate 20, more specifically, can
It is applied to the control circuit of wireless charging device, and be similarly applied to the wireless work(of embodiment illustrated in fig. 2
Rate transmits system 200, but this is only example explanation, and the restriction of non-invention.According to some embodiments, figure
Method 900 shown in 13 can be applicable to the power delivery unit described in embodiment illustrated in fig. 12, more specifically may be used
It is applied to the control circuit of Wireless transceiver unit.
In step 910, the control circuit of wireless charging device can receive a package from electronic equipment, wherein should
Package may be used to carry the information of the wireless charging report of electronic equipment, and can include unacknowledged header information
(unacknowledged header information).For example, the control circuit of wireless charging device can be from
This electronic equipment receives multiple package, and the plurality of package can include the package described in step 910, wherein should
Each package in multiple packages may be used to carry the information of the wireless charging report of electronic equipment, and can include
Unacknowledged header information.The example of the plurality of package can include but is not limited to: in step 320 at least
At least one random phase in one random phase delay package, step 620 postpones the behaviour shown in package, Figure 11
Make the step 712 in flow process 700, the 722nd, 732 and 740 package and Figure 12 embodiment described in connect
Receive package.The example of unacknowledged header information can include but is not limited to: in the package described in step 712
Default header content " OVP ", the default header content " DN " in the package described in step 722, step 732
Described in package in default header content " UP " and the default header in the package described in step 740
Content " OK ".
In step 920, the control circuit of wireless charging device can control wireless charging device to produce at least one
Simple response confirms (acknowledge) this package.The example of at least one simple response may include but be not limited to
Corresponding at least one simple response of at least one package in multiple packages, in order to confirm being somebody's turn to do in multiple package
At least one package.For example, information is not transmitted by any package to electronic equipment at wireless charging device
In the case of, the control circuit of wireless charging device can control this wireless charging device to produce corresponding to multiple
At least the one of at least one package simple response in package, to confirm this at least one package of the plurality of package.Special
Not, wireless charging device does not transmit any package to electronic equipment, but this is only example explanation, and
The restriction of non-invention.According to some embodiments, produce at least one simple response and confirm package not necessarily
Transmit any package to this electronic installation.Therefore, method proposed by the invention and relevant apparatus are (such as method 900
With device 100) work(of wireless power transmission system 200 can be kept by simple one-way communication control program
Rate control circulation continuous running, and from the restriction of non-bidirectional communication criterion, wherein when wireless charging device such as
Transfer plate 20 can reduce power consumption when not transmitting any modulated signal (such as wireless charging).With previously
Technology is compared, and method proposed by the invention and relevant apparatus can ensure that overall efficiency, and can avoid previous skill
Problem (increase such as manufacturing cost and the passage in frequency band is not enough) in art.
According to some embodiments, at least one package in above-mentioned multiple packages (includes the envelope described in step 910
Bag) can include that at least one random phase described in step 320 or 620 postpones package, at least a part of which one is random
Each package in phase delay package is respectively provided with and postpones relative to the random phase of time slot, and such as Fig. 3 and
Described in the embodiment of Figure 10, it is at least one wireless in order to transmit electronic equipment that at least one random phase postpones package
The information of charging report.
According to some embodiments, the simple response of above-mentioned at least one can be detected by electronic equipment.For example,
Electronic equipment can detect above-mentioned at least one simple response and using this at least one simple response as step 910 institute
The confirmation to package stated (for example includes that in multiple packages of package described in step 910, at least one package is really
Recognize), it is not necessary to decoding is performed at least one simple response.According to some embodiments, at least one simple response can be wrapped
Include at least one predefined signal pulse in time domain or frequency domain.
Figure 14 according to embodiments of the invention exemplified with the simple response control program of method 900 shown in Figure 13
Schematic diagram.Curve shown in Figure 14 first half can represent the transmitter power amplifier (letter of wireless charging device
Be referred to as Tx PA) electric current, output electric current (for example, the transmitter line of transfer plate 20 of such as Tx PA
Loop current ITX_COIL can be considered as the electric current of Tx PA, or the current in proportion with Tx PA), Figure 14
Curve shown in lower half can represent certain power receiving unit (the such as target power of multiple power receiving unit
Receiving unit) DC voltage level Vrect.
As shown in figure 14, the waveform of Tx PA electric current had before pulse 1020 some vibrations 1010, and
Corresponding to transmitter decoding, (for example, transfer plate 20 decodable code connects from certain power in these vibrations 1010
These vibrations 1010 are reported and produced accordingly to some wireless chargings receiving unit).When transmitter decoding completes,
The control circuit of wireless charging device can produce Sing plus, the pulse in the waveform of such as Tx PA electric current
1020, and using this Sing plus as the simple response of at least described in step 920.In response at least one
Simple response (all such Sing plus, such as pulse 1020), the direct current piezoelectricity of certain power receiving unit
Flat Vrect can change accordingly.Therefore, in the waveform of the DC voltage level Vrect of certain power receiving unit
There is corresponding pulse 1022.Therefore, electricity is conveyed information at wireless charging device not over any package
In the case of subset, the control circuit of this wireless charging device can control wireless charging device produce corresponding to
At least the one of at least one package simple response in multiple packages, to confirm at least one package (bag in multiple package
Include the package described in step 910).According to this embodiment, due to this electronic equipment, (especially, certain power connects
Receive unit) it is not required to enter above-mentioned at least one simple response row decoding, therefore this at least one simple response really may be used
With relatively simple, wherein wireless charging device does not transmit any package to this electronic equipment.For purpose of brevity,
Remaining details of the present embodiment is omitted at this.
Figure 15 according to embodiments of the invention exemplified with method 900 shown in Figure 13 simple response (for example, as
Upper described Sing plus) schematic diagram.In order to make it easy to understand, the simple response control program shown in Figure 14 is still
Can be applicable to the power delivery unit as shown in figure 11 described in embodiment, and the waveform according to Figure 15,
The control circuit of wireless charging device can control the electric current of the TX PA of power delivery unit to produce this single arteries and veins
Punching.
As shown in figure 15, originally TX PA electric current can maintain transmitter primary current Itx_original.When send out
(for example, the power delivery unit PTU decoding OK marked in Figure 15), wireless charging when emitter decoding completes
The control circuit of electricity equipment can control TX PA electric current makes it rest on transmitter nominal current Itx_nominal mono-
The section time, then controlling TX PA electric current is that the 90% of transmitter maximum current Itx_max reaches preset time period,
To form the rising edge of Sing plus, wherein preset time period can for fixing in the range of 2ms to 5ms when
Between section.Then, the control circuit of wireless charging device can control TX PA electric current is the original electricity of transmitter again
Stream Itx_original is to form the drop edge of this Sing plus.Therefore, this Sing plus can be set by electronics
Standby (especially, certain power receiving unit) simply correctly detects.For purpose of brevity, remaining is thin for the present embodiment
Joint omits at this.
Figure 16 according to another embodiment of the present invention exemplified with method 900 shown in Figure 13 simple response (for example,
The train of pulse of such as a series of pulses) schematic diagram.In order to make it easy to understand, except Sing plus is by train of pulse institute
Outside replacement, the simple response control program shown in Figure 14 still can be applicable to institute in such as embodiment illustrated in fig. 11
The power delivery unit stated, and the waveform according to Figure 16, the control circuit of wireless charging device can control
The TX PA electric current of this power delivery unit is to produce a series of pulse.
As shown in figure 16, originally TX PA electric current can maintain transmitter primary current Itx_original, when send out
When emitter decoding completes (the power delivery unit decoding OK marked in such as Figure 15), wireless charging device
Control circuit can control TX PA electric current makes it rest on transmitter nominal current Itx_nominal a period of time,
Then controlling TX PA electric current is that the 90% of transmitter maximum current Itx_max reaches preset time period, to be formed
The rising edge of the first pulse in this series of pulse, wherein preset time period can be 2ms to 5ms scope
Interior set time section.Then, the control circuit of wireless charging device can control TX PA electric current again for sending out
Emitter nominal current Itx_original is to form the drop edge of the first pulse in a series of pulse.A series of
The residual impulse of pulse can produce in the same way, simply the control circuit control TX PA of wireless charging device
Electric current is that transmitter primary current Itx_original is to form the trailing edge of last pulse of a series of pulse
Edge.Therefore, a series of pulses simply correctly can be detected by electronic equipment (especially, power receiving unit)
Arrive.For purpose of brevity, remaining details of the present embodiment is omitted at this.
Figure 17 according to another embodiment of the present invention exemplified with the simple response of method 900 shown in Figure 13 (such as frequency domain
In Sing plus) schematic diagram.For example, the control circuit of wireless charging device may utilize frequency shift keying
(Frequency Shift Keying, FSK) simple answer method is controlling the Sing plus in frequency domain, but this is only
Example illustrates, and the restriction of non-invention.According to some embodiments, the control circuit of wireless charging device can
Utilize other methods to control the Sing plus in frequency domain.
According to this embodiment, the control circuit of wireless charging device can control TX PA electric current and initially carries default
Frequency 6.78MHz, then changes into another predeterminated frequency 6.79MHz in frequency domain, single to be formed in frequency domain
The rising edge of one pulse.Then, the control circuit of wireless charging device can control TX PA electric current in frequency domain
It is inside changed again to predeterminated frequency 6.78MHz to form the drop edge of Sing plus in frequency domain.Therefore, should
Sing plus simply correctly can be detected by electronic equipment (especially, power receiving unit).For purpose of brevity,
Remaining details of the present embodiment is omitted at this.
According to some embodiments, this pulse in frequency domain can be substituted by the series of pulses in frequency domain, citing
For, the control circuit of wireless charging device can control TX PA electric current and initially carries predeterminated frequency 6.78MHz,
Then in frequency domain, another predeterminated frequency 6.79MHz is changed into, with in a series of pulses in forming frequency domain first
The rising edge of pulse.Then, the control circuit of wireless charging device can control TX PA electric current in frequency domain
It is changed again to predeterminated frequency 6.78MHz to form the drop edge of the first pulse in a series of pulse.One is
The residual impulse of row pulse can produce in the same way.A series of pulses in frequency domain can be by electronic equipment
(especially, power receiving unit) simply correctly detects.For purpose of brevity, remaining details of the present embodiment is at this
Omit.
According to some embodiments, the power receiving unit in multiple power receiving units, as target power receives
Unit, transmittable random delay package, this random delay package comprises unacknowledged header information.Work as decoding
When completing, the power delivery unit in embodiment illustrated in fig. 15 can respond as follows: the transmitting of 2 milliseconds
Device nominal current Itx_nominal and there is certain pulses height (such as transmitter maximum current Itx_max
90%) and there is the rising pulses of certain pulses width (such as 2 milliseconds to 5 milliseconds).Additionally, power receiving unit
That can detect DC voltage level Vrect rises or falls behavior and correlation timing, single to determine that power transmits
Unit whether allow this unacknowledged header information (the default header content of package as described in step 712 " OVP ",
In the default header of package described in the default header content of package described in step 722 " DN ", step 732
The default header content of package described in appearance " UP " or step 740 " OK ").If power receiving unit cannot be detected directly
The unexpected change of stream voltage level Vrect, then power receiving unit can constantly repeatedly transmit have identical unconfirmed
The random delay package of header information content, to guarantee that power delivery unit can to this information decoding (more
Body ground, can notify this unacknowledged information of power delivery unit).But this be only example explanation, not this
Bright restriction.According to some a little embodiments, other can be applied not have complicated coding/decoding requirement to avoid mistake
Some simple answer methods of detecting by mistake.For example, may utilize above-mentioned train of pulse as in step 920
At least one simple response.And in some examples, it is real that the control circuit of power delivery unit may utilize Fig. 7
Execute the simple answer method of the FSK shown in example perform to start to change from original frequency 6.78MHz or become initial
The frequency modulation(PFM) of frequency 6.78MHz.Additionally, the associated modulation result of frequency can fall in scheduled frequency range,
Wherein scheduled frequency range can be more than or equal to lower frequency limit (6.78MHz-10KHz), and may be less than or equal to
Upper limiting frequency (6.78MHz+10KHz).
According to some embodiments, after once power delivery unit confirms, power receiving unit can be fixed package and be prolonged
The slow time simultaneously transmits the follow-up envelope with confirmed header information (acknowledged header information)
Bag.Additionally, after all packages all complete with the decoding of confirmed header information, power delivery unit can subtract
The size of this detection window few is extremely equal with the slot time of power receiving unit.Additionally, power receiving unit
The resonant frequency synchronization of packet delay time and power delivery unit can be reduced power delivery unit and work(
Time drift between rate receiving unit.If in addition, support time synchronized, then power receiving unit can be in length
Time (time cycle of such as one minute to ten minutes or another time span) transmits a unacknowledged package afterwards,
To avoid possible error detection or time drift.Remaining details is omitted at this to save length.
According to some embodiments, it is further provided perform the wireless of electronic equipment by the variable slot time
The method of charging control, wherein the method includes: perform unidirectional between electronic equipment and wireless charging device
Package transmission, wherein wireless charging device is arranged to this electronic equipment wireless charging, and this unidirectional package
At least one package (at least one package as shown in Figure 10 embodiment or other embodiments) transmitting is in order to carry this
The information of at least one wireless charging report of electronic equipment；And the time slot controlling the transmission of this unidirectional package is can
Become.For example, control the time slot that this unidirectional package transmits is to preset for multiple variable can including
Condition, as being respectively corresponding to the first priority (priority 1), the second priority (priority 2), third priority
The pre-conditioned of (priority 3) and the 4th priority (priority 4) changes the time slot that this unidirectional package transmits
Length.Remaining details is omitted at this to save length.
According to some embodiments, the method farther includes: when detecting first and being pre-conditioned, and this is single
The slot length transmitting to package changes into the first preset length.For example, this is first pre-conditioned than the
Two pre-conditioned promptly, and the method farther includes: when detect this second pre-conditioned when, this is single
Change into the second preset length to the length of time slot that package transmits, wherein this first preset length be shorter than this
Two preset length should.For example, the preset length in step 712 (25 milliseconds) is shorter than step 722 and 732
In preset length (250 milliseconds), and correspondence to the first priority (such as priority 1) pre-conditioned than correspondence extremely
Second priority (such as priority 2) and correspondence to third priority (such as priority 3) each pre-conditioned tightly
Anxious.In another example, the preset length (250 milliseconds) in step 722 and the default length in step 732
Degree (250 milliseconds) preset length (2000 milliseconds) that is shorter than in step 740, and correspondence to the second priority (as excellent
First level 2) and correspondence to third priority (such as priority 3) each pre-conditioned than corresponding to the 4th priority
(such as priority 4) pre-conditioned promptly, remaining details is omitted at this to save length.
According to some embodiments, the method farther includes: determine that the direct current of rectifier 50 in electronic equipment is defeated
Go out the VD level held on T21, such as DC voltage level Vrect；And according to VD
Level changes the length of the time slot that unidirectional package transmits.For example, the time slot that this unidirectional package transmits is changed
Length farther include: when this direct current output voltage level (such as DC voltage level Vrect) reach preset
During voltage level such as Vrect_max, the length reducing this time slot (reduces a length of of this time slot as shown in figure 11
25 milliseconds)；And when the voltage level (such as DC voltage level Vrect) of this direct current output reaches default voltage model
When enclosing in the range of being for example positioned between Vrect_low and Vrect_high, increase the length of this time slot (such as figure
Increase the length of time slot to 2000 milliseconds) shown in 11.Remaining details is omitted at this to save length.
The present invention one of the advantages is that the present invention can avoid or be greatly decreased and carries out the multiple of wireless charging simultaneously
The possibility of the wireless charging report data collision of device.Additionally, the present invention can pass through easy one-way communication
Control program rather than any both-way communication specification make wireless power transmission system maintain power control cycle (citing
For the power control cycle of wireless power transmission system, wherein wireless power transmission system can include wireless charging
Electricity equipment and electronic equipment) operation, wherein when this wireless charging device such as transfer plate does not transmit any tune
Power attenuation can be reduced during signal processed (such as wireless charging), compared with prior art, the side that disclosed herein
Method and device can ensure overall efficiency, and can avoid prior art is met with problem (increase such as cost and
Frequency band internal channel number is not enough).
Those of ordinary skill in the art will be easily noted that, while keeping the teachings of the present invention, and can be right
Apparatus and method of the present invention makes a large amount of modifications and variations.Therefore, above disclosure is appreciated that
Only limited by the scope of claims hereof.
Claims (18)
1. performing a method for the wireless charging control of electronic equipment, the method includes:
Determine whether the voltage level of the output of the direct current on the DC output end of rectifier in this electronic equipment is positioned at
In first voltage range, to produce the first detecting result；And
According to this first detecting result, be selectively communicated to a few package, wherein this at least one package in order to
Carry the information of at least one wireless charging report of this electronic equipment.
2. method according to claim 1, it is characterised in that wireless charging device is arranged to this
Electronic equipment wirelessly charges；And this step optionally transmitting this at least one package includes:
According to this first detecting result, selectivity in the case of not receiving package from this wireless charging device
Ground transmits this at least one package to this wireless charging device.
3. method according to claim 1, it is characterised in that this first detecting result indicates this direct current
The voltage level of output is not located in this first voltage range, and wireless charging device is arranged to this
Electronic equipment wirelessly charges, and the method farther includes:
This at least one wireless charging report according to this electronic equipment, determines in order to control the sequential that package transmits
At least one random value；
The step wherein optionally transmitting this at least one package farther includes:
According to this at least one random value, transmit, relative to time slot, there is this at least one package that random phase postpones
To this wireless charging device, the related wireless charging to trigger this wireless charging device controls operation.
4. method according to claim 1, it is characterised in that farther include:
Determine whether the voltage level that this direct current exports is positioned at the second voltage range, wherein determine that this direct current exports
Voltage level whether be positioned at this first voltage range ratio determine this direct current output voltage level whether be positioned at this
Second voltage range has higher priority.
5. method according to claim 1, it is characterised in that farther include:
Determine whether the voltage level that this direct current exports is positioned at the second voltage range, to produce the second detecting result；
And
According to this first detecting result and this second detecting result, control is for the time slot of package to be sent
Time is for presetting slot time or corresponding to this second voltage range corresponding to the first of this first voltage range
Second presets slot time.
6. method according to claim 5, it is characterised in that this second preset slot time more than or
First preset slot time equal to this.
7. the device controlling in order to the wireless charging performing electronic equipment, this device includes this electronic equipment
At least a portion, this device includes:
Controller, in order to judge the voltage of the direct current output on the DC output end of rectifier in this electronic equipment
Whether level is positioned at first voltage range, to produce the first detecting result；And
Communication module, is coupled to the coil of this controller and this electronic equipment, and wherein this communication module is set
It is set to, according to this first detecting result, be selectively communicated to a few package；
Wherein this at least one package is in order to transmit the information of at least one wireless charging report of this electronic equipment.
8. performing a method for the wireless charging control of electronic equipment, the method is by means of wireless charging device
Simple response, wherein this wireless charging device is in order to wirelessly to charge to this electronic equipment, and the method includes:
Receiving package from this electronic equipment, wherein this package is reported in order to the wireless charging carrying this electronic equipment
Information and include unacknowledged header information；And
Control this wireless charging device to produce at least one simple response to confirm this package.
9. method according to claim 8, it is characterised in that control this wireless charging device to produce
This at least one simple response includes with the step confirming this package:
Control this wireless charging device and confirm this package to produce this at least one simple response, and not by appointing
What package transmits information from this wireless charging device to this electronic equipment.
10. method according to claim 9, it is characterised in that this at least one simple response of this generation
Confirm that this package does not needs to transmit any package to this electronic equipment.
11. methods according to claim 8, it is characterised in that this electronic equipment detect this at least one
Simple response and using this at least one simple response as the confirmation of this package, at least one simply answer without to this
Answer and perform decoding.
12. methods according to claim 8, it is characterised in that when this at least one simple response includes
At least one predefined signal pulse in territory or frequency domain.
13. 1 kinds of devices that method execution wireless charging controls according to claim 8, wherein this device
Including at least a portion of this electronic equipment.
The method of 14. 1 kinds of wireless charging controls performing electronic equipment, the method is by means of variable time slot
Time, the method includes:
Package transmission, wherein this wireless charging device quilt is performed between this electronic equipment and wireless charging device
It is set to wirelessly charge this electronic equipment, and at least one package that this package transmits is in order to carry this electronics
The information of at least one wireless charging report of equipment；And
The time slot controlling the transmission of this package is variable.
15. methods according to claim 14, it is characterised in that the time slot controlling the transmission of this package is
The length of the variable time slot including transmitting for multiple pre-conditioned this packages of change, the method is wrapped further
Include:
When detect the plurality of pre-conditioned first pre-conditioned when, by the length of the time slot that this package transmits
Change into the first preset length.
16. methods according to claim 15, it is characterised in that this first pre-conditioned ratio is the plurality of
In pre-conditioned second pre-conditioned promptly, the method farther includes:
When detect this second pre-conditioned when, the length of time slot that this package transmits is changed into second and presets
Length, wherein this first preset length is shorter than this second preset length.
17. methods according to claim 14, it is characterised in that the method farther includes:
Determine the voltage level that the direct current on the DC output end of rectifier in this electronic equipment exports；And
Change the length of the time slot that this package transmits according to the voltage level that this direct current exports.
18. methods according to claim 17, it is characterised in that change the time slot of this package transmission
The step of length includes:
When the voltage level of this direct current output reaches predetermined voltage level, reduce the length of this time slot；Or
When the voltage level of this direct current output falls into predetermined voltage range, increase the length of this time slot.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562152200P | 2015-04-24 | 2015-04-24 | |
| US62/152,200 | 2015-04-24 | ||
| US15/098,328 | 2016-04-14 | ||
| US15/098,328 US10447061B2 (en) | 2014-01-16 | 2016-04-14 | Method for performing wireless charging control of an electronic device with aid of variant slot timing and simple response indicating acknowledgement, and associated apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106067688A true CN106067688A (en) | 2016-11-02 |
| CN106067688B CN106067688B (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610255834.6A Active CN106067688B (en) | 2015-04-24 | 2016-04-22 | Execute the method and device of the wireless charging control of electronic equipment |
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| CN (1) | CN106067688B (en) |
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| Publication number | Publication date |
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| CN106067688B (en) | 2019-11-29 |
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