CN105826066A - Coil applied to wireless charging system and inductance adjusting method - Google Patents
Coil applied to wireless charging system and inductance adjusting method Download PDFInfo
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- CN105826066A CN105826066A CN201610323003.8A CN201610323003A CN105826066A CN 105826066 A CN105826066 A CN 105826066A CN 201610323003 A CN201610323003 A CN 201610323003A CN 105826066 A CN105826066 A CN 105826066A
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- charging system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
- H01F2038/143—Inductive couplings for signals
Abstract
The invention provides a coil applied to a wireless charging system and an inductance adjusting method of the coil applied to the wireless charging system. The coil comprises a first coil end and a second coil end. At least one of the first coil end and the second coil end comprises multiple terminals. The terminals in the first coil end or the second coil end including the terminals are spaced by at least one unit of turns per coil. The inductance values of the coil are different based on different combinations of one terminal in the first coil end and the other terminal in the second coil end. The coil applied to the wireless charging system can flexibly adjust the inductance values.
Description
Technical field
The application relates to wireless charging field, particularly relates to a kind of coil being applied to wireless charging system and is applied to the adjustment of inductance method of coil of wireless charging system.
Background technology
For wireless charging field, wireless charging system generally includes transmitting terminal and receiving terminal, transmitting terminal such as wireless charger, receiving terminal such as mobile phone, intelligent watch etc., wherein transmitting terminal to transmit electric energy to receiving terminal by the electromagnetic induction of its interior coil with the coil in receiving terminal.During charging, electric current on receiving terminal is typically change, in wireless charging system, the operating frequency of load also can adjust with the change of electric current, and wants to realize higher or the highest electric energy efficiency of transmission under different operating frequencies, it usually needs the system coil of appropriate electrical sensibility reciprocal.Further, since different transmitting terminal electromagnetic coupled environment (such as including the isolation environment etc. in the distance between transmitting terminal and receiving terminal, magnetic field) is different, the same receiving terminal optimal inductance value required when the different transmitting terminal of adaptation is also different.
But, prior art is applied to the coil (either receiving terminal or the coil of transmitting terminal) of wireless charging system, as shown in Figure 1, wire based on a root length carries out coiling, inductance value between coiling latter two terminal AC1 and AC2 is fixing, it is impossible to adjust neatly under different operating frequencies.
Summary of the invention
One purpose of the application is to provide the coil being applied to wireless charging system of a kind of self-adaptative adjustment inductance value, such that it is able to by adjusting receiving terminal or/and the inductance value of the coil of transmitting terminal realizes the efficiency of transmission that wireless charging system is preferable or optimal.
An embodiment according to the application, provide a kind of coil being applied to wireless charging system, including coil the first end and coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, being separated by the coil turn of at least one unit described in described coil the first end including multiple terminal or coil the second end between multiple terminals, the inductance value of described coil is different based on a terminal in described coil the first end and the difference of another terminal combination in coil the second end.
An embodiment according to the application, additionally provides a kind of circuit being applied to wireless charging system, described in be applied to the circuit of wireless charging system and include:
There is coil the first end and the coil of coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, the coil turn of at least one unit it is separated by between multiple terminals described in described coil the first end including multiple terminal or coil the second end
The switch that coil first end of multiple terminal or coil the second end are connected is included with described coil,
One end is connected with coil the first end including multiple terminal or coil second end of coil by described switch, the wireless charging chip that the other end is connected with coil the second end or coil the first end, this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described switch thus adjust the inductance value of described coil.
An embodiment according to the application, additionally provide a kind of wireless charging receiving terminal, including coil, described coil includes coil the first end and coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, being separated by the coil turn of at least one unit described in described coil the first end including multiple terminal or coil the second end between multiple terminals, the inductance value of described coil is different based on a terminal in described coil the first end and the difference of another terminal combination in coil the second end.
An embodiment according to the application, additionally provides a kind of wireless charging receiving terminal, and including being applied to the circuit of wireless charging system, this circuit being applied to wireless charging system includes:
Including coil the first end and the coil of coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, the coil turn of at least one unit it is separated by between multiple terminals described in described coil the first end including multiple terminal or coil the second end
The switch that coil first end of multiple terminal or coil the second end are connected is included with described coil,
By described switch, one end includes that with coil coil first end of multiple terminal or coil the second end are connected, the wireless charging chip that the other end is connected with coil the second end or coil the first end, this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described switch thus adjust the inductance value of described coil.
An embodiment according to the application, additionally provide a kind of wireless charging transmitting terminal, including coil, described coil includes coil the first end and coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, being separated by the coil turn of at least one unit described in described coil the first end including multiple terminal or coil the second end between multiple terminals, the inductance value of described coil is different based on a terminal in described coil the first end and the difference of another terminal combination in coil the second end.
An embodiment according to the application, additionally provides a kind of wireless charging transmitting terminal, and including being applied to the circuit of wireless charging system, this circuit being applied to wireless charging system includes:
There is coil the first end and the coil of coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, the coil turn of at least one unit it is separated by between multiple terminals described in described coil the first end including multiple terminal or coil the second end
The switch that coil first end of multiple terminal or coil the second end are connected is included with described coil,
By described switch, one end includes that with coil coil first end of multiple terminal or coil the second end are connected, the wireless charging chip that the other end is connected with coil the second end or coil the first end, this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described switch thus adjust the inductance value of described coil.
An embodiment according to the application, additionally provides a kind of adjustment of inductance method of coil being applied to wireless charging system, and this adjustment of inductance method includes:
From coil the first end included by coil and coil the second end at least one draw multiple terminals, described in include the coil turn that is separated by least one unit described in coil first end of multiple terminal or coil the second end between multiple terminals；
A terminal in described coil the first end and another terminal in coil the second end are differently combined, with the inductance value of regulating winding.
An embodiment according to the application, additionally provides a kind of adjustment of inductance method of wireless charging system, and this adjustment of inductance method includes:
From coil the first end included by the coil of wireless charging system and coil the second end at least one draw multiple terminals, described in include the coil turn that is separated by least one unit described in coil first end of multiple terminal or coil the second end between multiple terminals；
Detect the charge efficiency of described wireless charging system；
A terminal in described coil the first end and another terminal in coil the second end are differently combined, until detecting that the charge efficiency of described wireless charging system reaches maximum.
Compared with prior art, embodiments herein has the advantage that
The embodiment of the present application or/and the inductance value of coil of transmitting terminal realizes the charging efficiency of transmission that wireless charging system is preferable or optimal, thus has saved electric energy by adjusting receiving terminal effectively.
Accompanying drawing explanation
By reading the detailed description being made non-limiting example made with reference to the following drawings, other features, purpose and advantage will become more apparent upon:
Fig. 1 is the schematic diagram of a kind of coil being applied to wireless charging system of the prior art；
Fig. 2 is the schematic diagram of a kind of coil being applied to wireless charging system of one embodiment of the application；
Fig. 3 is the simple schematic diagram of a kind of circuit being applied to wireless charging system being applied to wireless charging system of one embodiment of the application；
Fig. 4 is the flow chart of the adjustment of inductance method of a kind of wireless charging system of one embodiment of the application；
Fig. 5 is the schematic diagram of the wireless charging system adjustment of inductance process of one embodiment of the application；
In accompanying drawing, same or analogous reference represents same or analogous parts.
Detailed description of the invention
It should be mentioned that, some exemplary embodiments are described as process or the method described as flow chart before being discussed in greater detail exemplary embodiment.Although operations is described as the process of order by flow chart, but many of which operation can be implemented concurrently, concomitantly or simultaneously.Additionally, the order of operations can be rearranged.The most described process can be terminated, it is also possible to have the additional step being not included in accompanying drawing.Described process can correspond to method, function, code, subroutine, subprogram etc..
Term used herein above is only used to describe specific embodiment and be not intended to limit exemplary embodiment.Unless the context clearly dictates otherwise, singulative the most used herein above " ", " one " also attempt to include plural number.It is to be further understood that, term used herein above " includes " and/or specifies " comprising " existence of feature, integer, step, operation, unit and/or the assembly stated, and does not precludes the presence or addition of other features one or more, integer, step, operation, unit, assembly and/or a combination thereof.
It should further be mentioned that in some replace implementation, the function/action being previously mentioned can occur according to being different from accompanying drawing the order indicated.For example, depending on involved function/action, the two width figures in succession illustrated can essentially substantially simultaneously perform or sometimes can perform in a reverse order.
Below in conjunction with the accompanying drawings the application is described in further detail.
An embodiment according to the application, it is provided that a kind of coil being applied to wireless charging system.
The described coil being applied to wireless charging system includes but not limited to that wireless charging receives the receiving terminal coil in equipment (such as mobile phone, intelligent watch etc.), wireless charging launches the transmitting terminal coil in equipment (such as wireless charging base), and wherein wireless charging transmitting equipment realizes receiving wireless charging the charging of equipment by the electromagnetic induction of transmitting terminal coil with receiving terminal coil.
In the present embodiment, this coil being applied to wireless charging system includes coil the first end and coil the second end, wherein, in coil the first end and coil the second end at least one include multiple terminal, being separated by the coil turn of at least one unit described in described coil the first end including multiple terminal or coil the second end between multiple terminals, the inductance value of described coil is different based on a terminal in described coil the first end and the difference of another terminal combination in coil the second end.
That is, the coil of the present embodiment can be coil the first end and coil the second end is all made up of multiple terminals, it is also possible to being that wherein one end includes multiple terminal, the other end is only made up of single terminal.
Alternatively, refer to Fig. 2, above-mentioned coil the first end (the AC1 end as in Fig. 2) is made up of single terminal, coil the second end (as Fig. 2 includes the second end of these multiple terminals of AC2.1 to AC2.N) is made up of multiple terminals, described in be applied to wireless charging system inductance value single terminal based on coil the first end and the combination of one of multiple terminals of coil the second end different and different of coil.
An embodiment according to the application, additionally provides a kind of circuit being applied to wireless charging system, described in be applied to the circuit of wireless charging system and include:
There is coil the first end and the coil of coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, the coil turn of at least one unit it is separated by between multiple terminals described in described coil the first end including multiple terminal or coil the second end
The switch that coil first end of multiple terminal or coil the second end are connected is included with described coil,
By described switch, one end includes that with coil coil first end of multiple terminal or coil the second end are connected, the wireless charging chip that the other end is connected with coil the second end or coil the first end, this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described switch thus adjust the inductance value of described coil.
Alternatively, refer to Fig. 3, Fig. 3 and show that the application is applied to an example of the circuit of wireless charging system.In the described circuit being applied to wireless charging system, described coil the first end (the AC1 end as in Fig. 3) is made up of single terminal, described coil the second end (as Fig. 3 includes the second end of these multiple terminals of AC2.1 to AC2.N) is made up of multiple terminals
Described switch is the single pole multiple throw being connected with coil the second end including multiple terminal,
By described switch, one end of described wireless charging chip includes that with coil coil second end of multiple terminal is connected, the other end is connected with coil the first end, and this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described single pole multiple throw thus adjust the inductance value of described coil.
Wherein, for coil, the most inductance values of the number of turn of coil-winding are the biggest, otherwise the least.Coil the second end as shown in Figure 3, a terminal is drawn every a circle or a few circle from outmost turns toward the direction of hub of a spool, including AC2.1, AC2.2 ... AC2.N, so, the inductance value between coil the first end AC1 and coil the second end AC2.n (n is less than or equal to N and more than or equal to 1) changes along with the change of n.
An embodiment according to the application, additionally provide a kind of wireless charging receiving terminal, including coil, described coil includes coil the first end and coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, being separated by the coil turn of at least one unit described in described coil the first end including multiple terminal or coil the second end between multiple terminals, the inductance value of described coil is different based on a terminal in described coil the first end and the difference of another terminal combination in coil the second end.
Wherein, described wireless charging receiving terminal includes but not limited to can be used for the mobile phone of wireless charging, intelligent watch etc..
Alternatively, described coil the first end is made up of single terminal,
Described coil the second end is made up of multiple terminals,
The inductance value of described coil single terminal based on coil the first end is different and different from the combination of one of multiple terminals of coil the second end.
An embodiment according to the application, additionally provides a kind of wireless charging receiving terminal, and including being applied to the circuit of wireless charging system, this circuit being applied to wireless charging system includes:
There is coil the first end and the coil of coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, the coil turn of at least one unit it is separated by between multiple terminals described in described coil the first end including multiple terminal or coil the second end
The switch that coil first end of multiple terminal or coil the second end are connected is included with described coil,
By described switch, one end includes that with coil coil first end of multiple terminal or coil the second end are connected, the wireless charging chip that the other end is connected with coil the second end or coil the first end, this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described switch thus adjust the inductance value of described coil.
Alternatively, described coil the first end is made up of single terminal, and described coil the second end is made up of multiple terminals,
Described switch is the single pole multiple throw being connected with coil the second end including multiple terminal,
By described switch, one end of described wireless charging chip includes that with coil coil second end of multiple terminal is connected, the other end is connected with coil the first end, and this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described single pole multiple throw thus adjust the inductance value of described coil.
An embodiment according to the application, additionally provide a kind of wireless charging transmitting terminal, including coil, described coil includes coil the first end and coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, being separated by the coil turn of at least one unit described in described coil the first end including multiple terminal or coil the second end between multiple terminals, the inductance value of described coil is different based on a terminal in described coil the first end and the difference of another terminal combination in coil the second end.
Wherein, described wireless charging transmitting terminal includes but not limited to wireless charging base.
An embodiment according to the application, additionally provides a kind of wireless charging transmitting terminal, and described coil the first end is made up of single terminal,
Described coil the second end is made up of multiple terminals,
The inductance value of described coil single terminal based on coil the first end is different and different from the combination of one of multiple terminals of coil the second end.
An embodiment according to the application, additionally provides a kind of wireless charging transmitting terminal, and including being applied to the circuit of wireless charging system, this circuit being applied to wireless charging system includes:
There is coil the first end and the coil of coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, the coil turn of at least one unit it is separated by between multiple terminals described in described coil the first end including multiple terminal or coil the second end
The switch that coil first end of multiple terminal or coil the second end are connected is included with described coil,
By described switch, one end includes that with coil coil first end of multiple terminal or coil the second end are connected, the wireless charging chip that the other end is connected with coil the second end or coil the first end, this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described switch thus adjust the inductance value of described coil.
Alternatively, described coil the first end is made up of single terminal, and described coil the second end is made up of multiple terminals,
Described switch is the single pole multiple throw being connected with coil the second end including multiple terminal,
By described switch, one end of described wireless charging chip includes that with coil coil second end of multiple terminal is connected, the other end is connected with coil the first end, and this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described single pole multiple throw thus adjust the inductance value of described coil.
An embodiment according to the application, additionally provides a kind of adjustment of inductance method of coil being applied to wireless charging system, and this adjustment of inductance method includes:
From coil the first end included by coil and coil the second end at least one draw multiple terminals, described in include the coil turn that is separated by least one unit described in coil first end of multiple terminal or coil the second end between multiple terminals；
A terminal in described coil the first end and another terminal in coil the second end are differently combined, with the inductance value of regulating winding.
An embodiment according to the application, refer to Fig. 4, additionally provides a kind of adjustment of inductance method of wireless charging system, and this adjustment of inductance method includes:
S101, from coil the first end included by the coil of wireless charging system and coil the second end at least one draw multiple terminals, described in include the coil turn that is separated by least one unit described in coil first end of multiple terminal or coil the second end between multiple terminals；
S102, detects the charge efficiency of described wireless charging system；
S103, differently combines a terminal in described coil the first end and another terminal in coil the second end, until detecting that the charge efficiency of described wireless charging system reaches maximum.
Alternatively, described a terminal in described coil the first end and another terminal in coil the second end are differently combined, until detecting that the charge efficiency of described wireless charging system reaches step S103 of maximum and includes:
If-coil the first end includes multiple terminal, it is 1 to N by the plurality of terminal according to the quantity number consecutively of coil turn；
-according to the order numbered from small to large, a terminal in coil the first end and another terminal in coil the second end are combined, until detect that the charge efficiency of described wireless charging system meets following condition, another terminal described in the terminal of numbered n in coil the first end and coil the second end is combined:
E (n) > E (n-1) and E (n) > E (n+1)
Wherein, n >=2 and n+1≤N, the charge efficiency of the described wireless charging system that another terminal in the terminal of the numbered n in E (n) expression coil the first end and coil the second end is detected in the case of being combined, the charge efficiency of the described wireless charging system that another terminal in the terminal of the numbered n-1 in E (n-1) expression coil the first end and coil the second end is detected in the case of being combined, the charge efficiency of the described wireless charging system that another terminal in the terminal of the numbered n+1 in E (n+1) expression coil the first end and coil the second end is detected in the case of being combined.
Specifically, it is made up of single terminal with coil the first end (the AC1 end as in Fig. 3) shown in Fig. 3, as a example by coil the second end (as Fig. 3 includes the second end of these multiple terminals of AC2.1 to AC2.N) is become by multiple terminal group, when wireless charging receiving terminal is (such as hands machine, intelligent watch etc.) it is placed in transmitting terminal (such as wireless charger), this receiving terminal plays electric current during charging and can change, correspondingly charging efficiency of transmission is changed, in order to make charging efficiency of transmission reach maximum or higher value, it needs to be determined that the optimum of wireless charging system coil (including the coil of receiving terminal or transmitting terminal) or preferred values, then:
Multiple terminals of coil the second end are numbered by the quantity according to coil, from AC2.1 numbering to AC2.N, such as from the order of AC2.1 numbering to AC2.N, one of them terminal is combined with single-ended AC1 according to a definite sequence, often combine once, calculate the charge efficiency of wireless charging system under this combination condition, as it is shown in figure 5, by the initial value value 2 of n, n+1≤N, then:
S201, is placed in AC2. (n-1) based on wireless charging chip by single pole multiple throw, detects charge efficiency E (n-1) of wireless charging system under this situation；
S202, is placed in AC2. (n) based on wireless charging chip by single pole multiple throw, detects charge efficiency E (n) of wireless charging system under this situation；
S203, is placed in AC2. (n+1) based on wireless charging chip by single pole multiple throw, detects charge efficiency E (n+1) of wireless charging system under this situation；
Whether S204, it is judged that E (n) > E (n-1) and E (n) > E (n+1) set up, if set up, enter step S205；If be false, return step S201；
S205, is replaced in single pole multiple throw AC2. (n) based on wireless charging chip and rests on the position of AC2. (n).
Based on the present embodiment, the characteristic of a flex point (maximum) is there is normally only according to the change curve of the charge efficiency of wireless charging system during changing at winding inductance quantity, have only to judge E (n) whether E (n-1) and E (n) > E (n+1) set up, and without all values of E (1) to E (N) is detected and calculates, i.e. can determine that the maximum of wireless charging system charge efficiency during regulating winding inductance value, thus be conducive to improving computational efficiency.
Certainly, in other examples, it would however also be possible to employ other sort methods determine the maximum of wireless charging system charge efficiency during regulating winding inductance value.
Compared with prior art, the application can allow wireless charging receiving terminal can be transferred through adaptive optimal inductance value coil when adaptive different transmitting terminal or different load currents thus obtain higher or the highest efficiency.
It is obvious to a person skilled in the art that the application is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit herein or basic feature, it is possible to realize the application in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present application is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim be included in the application.Should not be considered as limiting involved claim by any reference in claim.Furthermore, it is to be understood that " an including " word is not excluded for other unit or step, odd number is not excluded for plural number.In system claims, multiple unit or the device of statement can also be realized by software or hardware by a unit or device.The first, the second word such as grade is used for representing title, and is not offered as any specific order.
Though the most specifically shown and describe exemplary embodiment, it will be appreciated by those skilled in the art that in the case of without departing substantially from the spirit and scope of claims, can be varied from terms of its form and details.
Claims (10)
1. the coil being applied to wireless charging system, including coil the first end and coil the second end, it is characterized in that, in described coil the first end and coil the second end at least one include multiple terminal, being separated by the coil turn of at least one unit described in described coil the first end including multiple terminal or coil the second end between multiple terminals, the inductance value of described coil is different based on a terminal in described coil the first end and the difference of another terminal combination in coil the second end.
Coil the most according to claim 1, it is characterised in that
Described coil the first end is made up of single terminal,
Described coil the second end is made up of multiple terminals,
The inductance value of described coil single terminal based on coil the first end is different and different from the combination of one of multiple terminals of coil the second end.
3. the circuit being applied to wireless charging system, it is characterised in that described circuit includes:
There is coil the first end and the coil of coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, the coil turn of at least one unit it is separated by between multiple terminals described in described coil the first end including multiple terminal or coil the second end
The switch that coil first end of multiple terminal or coil the second end are connected is included with described coil,
One end is connected with coil the first end including multiple terminal or coil second end of coil by described switch, the wireless charging chip that the other end is connected with coil the second end or coil the first end, this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described switch thus adjust the inductance value of described coil.
Circuit the most according to claim 3, it is characterised in that
Described coil the first end is made up of single terminal, and described coil the second end is made up of multiple terminals,
Described switch is the single pole multiple throw being connected with coil the second end including multiple terminal,
One end of described wireless charging chip is connected with coil second end including multiple terminal of coil by described switch, the other end is connected with coil the first end, and this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described single pole multiple throw thus adjust the inductance value of described coil.
5. a wireless charging receiving terminal, it is characterized in that, including coil, described coil includes coil the first end and coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, being separated by the coil turn of at least one unit described in described coil the first end including multiple terminal or coil the second end between multiple terminals, the inductance value of described coil is different based on a terminal in described coil the first end and the difference of another terminal combination in coil the second end.
Wireless charging receiving terminal the most according to claim 5, it is characterised in that
Described coil the first end is made up of single terminal,
Described coil the second end is made up of multiple terminals,
The inductance value of described coil single terminal based on coil the first end is different and different from the combination of one of multiple terminals of coil the second end.
7. a wireless charging receiving terminal, it is characterised in that include the circuit being applied to wireless charging system, this circuit being applied to wireless charging system includes:
There is coil the first end and the coil of coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, the coil turn of at least one unit it is separated by between multiple terminals described in described coil the first end including multiple terminal or coil the second end
The switch that coil first end of multiple terminal or coil the second end are connected is included with described coil,
One end is connected with coil the first end including multiple terminal or coil second end of coil by described switch, the wireless charging chip that the other end is connected with coil the second end or coil the first end, this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described switch thus adjust the inductance value of described coil.
Wireless charging receiving terminal the most according to claim 7, it is characterised in that
Described coil the first end is made up of single terminal, and described coil the second end is made up of multiple terminals,
Described switch is the single pole multiple throw being connected with coil the second end including multiple terminal,
One end of described wireless charging chip is connected with coil second end including multiple terminal of coil by described switch, the other end is connected with coil the first end, and this wireless charging chip is connected to the position of a terminal in the plurality of terminal and determines the combination of a terminal in described coil the first end and another terminal in coil the second end by controlling described single pole multiple throw thus adjust the inductance value of described coil.
9. a wireless charging transmitting terminal, it is characterized in that, including coil, described coil includes coil the first end and coil the second end, in described coil the first end and coil the second end at least one include multiple terminal, being separated by the coil turn of at least one unit described in described coil the first end including multiple terminal or coil the second end between multiple terminals, the inductance value of described coil is different based on a terminal in described coil the first end and the difference of another terminal combination in coil the second end.
Wireless charging transmitting terminal the most according to claim 9, it is characterised in that
Described coil the first end is made up of single terminal,
Described coil the second end is made up of multiple terminals,
The inductance value of described coil single terminal based on coil the first end is different and different from the combination of one of multiple terminals of coil the second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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