CN108448694A - Wireless charging device, method and device, electronic equipment - Google Patents

Wireless charging device, method and device, electronic equipment Download PDF

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Publication number
CN108448694A
CN108448694A CN201810268897.4A CN201810268897A CN108448694A CN 108448694 A CN108448694 A CN 108448694A CN 201810268897 A CN201810268897 A CN 201810268897A CN 108448694 A CN108448694 A CN 108448694A
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China
Prior art keywords
voltage
control instruction
circuit
battery
real
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CN201810268897.4A
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Chinese (zh)
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CN108448694B (en
Inventor
毕监刚
吴茂东
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to CN201810268897.4A priority Critical patent/CN108448694B/en
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    • H02J7/025
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The disclosure is directed to a kind of wireless charging device, method and device, electronic equipments.The wireless charging device includes:Receiving circuit and reception controller;The reception controller is connect with the receiving circuit;The receiving circuit exports charging voltage to battery;The reception controller is used to generate control instruction according to the real-time voltage of the battery, and the control instruction is sent to the receiving circuit;The receiving circuit is used to respond the charging voltage that the control instruction adjustment is transmitted to the battery;The charging voltage and the difference of the real-time voltage belong to preset range;The upper limit value of the preset range is determined according to the internal resistance of the battery.As it can be seen that the present embodiment can reduce the input power or input voltage of receiving circuit;And the electric energy loss that can reduce receiving circuit improves its transfer efficiency.In addition, the present embodiment can also reduce the temperature for receiving circuit, the charging rate of battery is improved.

Description

Wireless charging device, method and device, electronic equipment
Technical field
This disclosure relates to power technique fields more particularly to a kind of wireless charging device, method and device, electronic equipment.
Background technology
During wireless charging, the receiving circuit of mobile terminal is exported by reduction voltage circuit (such as DC-DC circuit) fixes DC voltage, then by power control circuit by the DC voltage be converted into battery needs charging voltage.Receiving circuit is defeated The voltage difference entered between voltage and output voltage is larger, increases the power consumption of conversion voltage, the output of receiving circuit is caused to be imitated Rate is relatively low.In addition, this part power consumption can be such that the temperature of receiving circuit increases, need to reduce charging voltage if controlling temperature To influence the charging rate of battery, the conversion effect of reduction voltage circuit and power control circuit is influenced whether if not controlling temperature Rate.
Invention content
A kind of wireless charging device of disclosure offer, method and device, electronic equipment, to solve in the related technology not Foot.
According to the first aspect of the embodiments of the present disclosure, a kind of wireless charging device is provided, the equipment includes:Receiving circuit With reception controller;The reception controller is connect with the receiving circuit;The receiving circuit exports charging voltage to battery;
The reception controller is used to generate control instruction according to the real-time voltage of the battery, and by the control instruction It is sent to the receiving circuit;
The receiving circuit is used to respond the charging voltage that the control instruction adjustment is transmitted to the battery;The charging The difference of voltage and the real-time voltage belongs to preset range;The upper limit value of the preset range is true according to the internal resistance of the battery It is fixed.
Optionally, the receiving circuit includes:Receiving coil, rectification circuit and voltage conversion circuit;The receiving coil It is connect with the rectification circuit;The voltage conversion circuit is connect with the rectification circuit;The reception controller and the electricity Voltage conversion circuit connects;
The receiving coil is used to receive the AC energy of radiation, and the AC energy is transferred to the rectified current Road;
The rectification circuit is used to the AC energy rectification be DC voltage;
The voltage conversion circuit is used to that the DC voltage to be converted to charging voltage according to the control instruction.
Optionally, the reception controller is also connect with the rectification circuit, is additionally operable to the control instruction being sent to The rectification circuit;
The rectification circuit is used to the AC energy rectification be the corresponding DC voltage of the control instruction.
Optionally, the receiving circuit further includes:Receive protection circuit;Reception protection circuit respectively with the rectification Circuit is connected with the reception controller;
The reception controller is additionally operable to obtain the output voltage of the rectification circuit and output current and the electricity respectively The output voltage and output current of voltage conversion circuit, and according to the comparing result of the output voltage and voltage threshold and/or The comparing result of the output current and current threshold protects rectification circuit described in circuit control by the reception.
Optionally, the reception controller is also connect with the power management modules of the battery, the power management modules For the real time temperature of the battery detected to be sent to the reception controller;The reception controller is additionally operable to basis The real-time voltage and the real time temperature generate control instruction.
Optionally, the controller that receives is additionally operable to obtain the protection signal that power management modules are sent, and according to described Real-time voltage and the protection signal generate the control instruction.
Optionally, the equipment further includes:Radiating circuit and mission controller;The mission controller and transmitting electricity Road connects;The radiating circuit is used for by being wirelessly connected to the receiving circuit transmission power;
The reception controller is additionally operable to the control instruction being sent to the mission controller;
The mission controller is used to respond the output power of the control instruction adjustment radiating circuit.
Optionally, the radiating circuit includes charger;The charger is connect with the mission controller;
The charger is used to respond the control instruction that the mission controller receives and adjusts itself output voltage, Yi Ji When the corresponding output voltage exception for it is expected charger of the control instruction, output is less than the output for it is expected charger The voltage of voltage.
According to the second aspect of the embodiment of the present disclosure, a kind of wireless charging method is provided, the method includes:
Obtain the real-time voltage of battery;
Control instruction is generated according to the real-time voltage, and the control instruction is sent to receiving circuit;The control Instruction indicates that the receiving circuit adjustment is transmitted to the charging voltage of the battery;
The charging voltage and the difference of the real-time voltage belong to preset range;The upper limit value of the preset range according to The internal resistance of the battery determines.
Optionally, the method further includes:
The control instruction is sent to mission controller;The control instruction indicates the mission controller adjustment transmitting The output power of circuit.
Optionally, the radiating circuit includes charger;The charger is connect with the mission controller;The transmitting The control instruction is sent to the charger by controller;The method further includes:
The charger parses the control instruction, obtains the corresponding output for it is expected charger of the control instruction Voltage;
If the output voltage for it is expected charger is abnormal, output is less than the output voltage for it is expected charger Voltage.
Optionally, the method further includes:
Obtain the real time temperature of the battery;
Generating control instruction according to the real-time voltage includes:
Control instruction is generated according to the real-time voltage and the real time temperature.
Optionally, the method further includes:
Obtain the protection signal that power management modules are sent;
Generating control instruction according to the real-time voltage includes:
Control instruction is generated according to the real-time voltage and the protection signal.
According to the third aspect of the embodiment of the present disclosure, a kind of electronic equipment is provided, the electronic equipment includes:
Wireless charging device as described in relation to the first aspect;
Mission controller;
Receive controller;
Memory for storing the mission controller executable instruction;
Wherein, the reception controller is used for:
Obtain the real-time voltage of battery;
Control instruction is generated according to the real-time voltage, and the control instruction is sent to receiving circuit;The control Instruction indicates that the receiving circuit adjustment is transmitted to the charging voltage of the battery;
The charging voltage and the difference of the real-time voltage belong to preset range;The upper limit value of the preset range according to The internal resistance of the battery determines.
According to the fourth aspect of the embodiment of the present disclosure, a kind of computer readable storage medium is provided, is stored thereon with calculating Machine program, the program are realized when being executed by processor:
Obtain the real-time voltage of battery;
Control instruction is generated according to the real-time voltage, and the control instruction is sent to receiving circuit;The control Instruction indicates that the receiving circuit adjustment is transmitted to the charging voltage of the battery;
The charging voltage and the difference of the real-time voltage belong to preset range;The upper limit value of the preset range according to The internal resistance of the battery determines.
The technical scheme provided by this disclosed embodiment can include the following benefits:
The present embodiment adjusts the charging voltage of receiving circuit output, makes charging voltage and reality according to the virtual voltage of battery Difference between the voltage of border belongs to preset range;The upper limit value of the preset range is determined according to the internal resistance of the battery.As it can be seen that By making the difference of charging voltage and virtual voltage belong to preset range in the present embodiment, the input work of receiving circuit can be reduced Rate or input voltage;Also, with the increase of battery virtual voltage, between the input voltage and output voltage of receiving circuit Voltage difference becomes smaller, and can reduce the electric energy loss of receiving circuit in this way, improves its transfer efficiency.In addition, the present embodiment can be with The temperature for receiving circuit is reduced, the charging rate of battery is improved.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not The disclosure can be limited.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is a kind of structure diagram of wireless charging device shown in the relevant technologies;
Fig. 2 is a kind of structure diagram of wireless charging device shown according to an exemplary embodiment;
Fig. 3 is a kind of structure diagram of the wireless charging device shown according to another exemplary embodiment;
Fig. 4 is a kind of structure diagram of the wireless charging device shown according to a further exemplary embodiment;
Fig. 5 is a kind of structure diagram of the wireless charging device shown according to another exemplary embodiment;
Fig. 6 is a kind of structure diagram of the wireless charging device shown according to another exemplary embodiment;
Fig. 7~Figure 11 is a kind of flow diagram of wireless charging method shown according to an exemplary embodiment;
Figure 12 is the block diagram according to a kind of electronic equipment shown in an exemplary embodiment.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended The consistent device example of some aspects be described in detail in claims, the disclosure.
The structure of wireless charging device includes reduction voltage circuit and voltage conversion circuit in the related technology, and Fig. 1 is the relevant technologies Shown in a kind of structure diagram of wireless charging device.Referring to Fig. 1, during wireless charging, the reception electricity of mobile terminal It route reduction voltage circuit (such as DC-DC circuit) and exports fixed DC voltage, then by power control circuit by the DC voltage It is converted into the charging voltage of battery needs.Voltage difference between receiving circuit input voltage and output voltage is larger, increases conversion The power consumption of voltage causes the delivery efficiency of receiving circuit relatively low.In addition, this part power consumption can make the temperature of receiving circuit Degree increases, and needs reduction charging voltage to influence the charging rate of battery if controlling temperature, can if not controlling temperature Influence the transfer efficiency of reduction voltage circuit and power control circuit.
To solve the above problems, the embodiment of the present disclosure provides a kind of wireless charging device, Fig. 2 is according to an exemplary reality Apply a kind of structure diagram of the wireless charging device exemplified.Referring to Fig. 2, which includes:10 He of receiving circuit Receive controller 20;Controller 20 is received to connect with receiving circuit 10;Receiving circuit 10 exports charging voltage to battery 30;
It receives controller 20 to be used to generate control instruction according to the real-time voltage of battery 30, and control instruction is sent to and is connect Receive circuit 10;
Receiving circuit 10 is transmitted to the charging voltage of battery 30 for response control instruction adjustment;Charging voltage and electricity in real time The difference of pressure belongs to preset range;The upper limit value of preset range is determined according to the internal resistance of the battery.
It will be appreciated that the upper limit value of preset range can be determined according to the internal resistance of battery.Upper limit value and internal resistance are positive The relationship of pass, for example, when the internal resistance of battery becomes larger, which can suitably become larger;When the internal resistance of battery change is small, the upper limit Can suitably it become smaller in value.In one embodiment, charging voltage and the difference of real-time voltage are 50mV, and preset range can be 0 ~50mV.Certainly, which can also be adjusted according to concrete scene, and therefore not to repeat here.
It should be noted that control instruction can be one group, or multigroup.Such as control instruction be one group when, this When receive controller can be according to real-time voltage, then in conjunction with voltage conversion circuit 103 and the control rectified current subsequently occurred Power amplifier 402 or charger 403 in road 102, radiating circuit generate the control signal respectively needed, then will be multiple Control signal is combined as a control instruction, and certainly each control signal can also be used as a control instruction, equally can be real The scheme of the existing embodiment of the present disclosure.
As it can be seen that poor between the charging voltage exported of receiving circuit 10 and the virtual voltage of battery 30 by making in the present embodiment Value belongs to preset range, can reduce the input power or input voltage of receiving circuit 10.Also, with battery virtual voltage Increase, the voltage difference between the input voltage and output voltage of receiving circuit 10 becomes smaller, and can reduce receiving circuit in this way Electric energy loss improves its transfer efficiency.In addition, the present embodiment can also reduce the temperature for receiving circuit 10, battery 30 is improved Charging rate.
Fig. 3 is a kind of structure diagram of wireless charging device shown according to an exemplary embodiment.Referring to Fig. 3, the nothing Micro USB electric equipment includes:Receiving circuit 10 and reception controller 20.Wherein receiving circuit 10 and receive controller 20 function and Connection relation can be closed with the function and connection of receiving circuit 10 in wireless charging device shown in reference chart 1 and reception controller 20 System, therefore not to repeat here.Wherein,
Receiving circuit 10 includes receiving coil 101, rectification circuit 102 and voltage conversion circuit 103.Receiving coil 101 with Rectification circuit 102 connects;Voltage conversion circuit 103 is connect with rectification circuit 102;Receive controller 20 and voltage conversion circuit 103 connections;
Receiving coil 101 is used to receive the AC energy of radiation, and AC energy is sent to rectification circuit 102;
Rectification circuit 102 is used to AC energy rectification be DC voltage;
Voltage conversion circuit 103 is used to that DC voltage to be converted to charging voltage according to control instruction.
Compared with using reduction voltage circuit and power adjusting circuit that DC voltage is converted into charging voltage in the related technology, this Rectification circuit 102 exports DC voltage in embodiment receiving circuit 10, is converted to DC voltage by voltage conversion circuit 103 and fills Piezoelectric voltage can save a reduction voltage circuit, i.e. DC voltage to charging voltage can save primary voltage transfer process, can be with The electric energy loss in transfer process is saved, so as to improve the transfer efficiency of receiving circuit.
In one embodiment, referring to Fig. 4, on the basis of wireless charging device shown in Fig. 3, wireless charging device can be with Including:Receive protection circuit 104.Protection circuit 104 is received to connect with rectification circuit 102 and reception controller 20 respectively;It receives Controller 20 is additionally operable to obtain the output of the output voltage and output current and voltage conversion circuit 103 of rectification circuit 102 respectively Voltage and output current, and according to the comparing result of output voltage and voltage threshold and output current and current threshold by connecing It receives protection circuit 104 and controls rectification circuit 102.
For example, the output voltage of rectification circuit 102 is 10V, voltage threshold 9V, then comparing result is output voltage mistake Height receives the output voltage that protection circuit 104 controls rectification circuit 102, its output voltage is made to be down to 9V, at this time to which protection connects Receive circuit 10 and battery 30.For another example, the output current of rectification circuit 102 is 5A, current threshold 3.5A, then comparing result is defeated Go out that electric current is excessively high, receive the output current that protection circuit 104 controls rectification circuit 102 at this time, its output current is made to be down to 3.5V, To protect receiving circuit 10 and battery 30.For another example, output voltage and output current are more than simultaneously respective threshold value, then respectively to defeated Go out voltage and output current be adjusted (with above-mentioned each exemplary contents), can also to by output voltage it is synchronous with output current or Substep adjusts.
As it can be seen that the present embodiment can prevent rectification circuit by the output voltage and output current of control rectification circuit 102 102 output voltages or output current are excessive and damage battery 30, can extend the service life of battery 30 in this way.
In one embodiment, controller 20 is received also to connect with the power management modules (not shown) of battery 30.Electricity Source control module, which is used to the real time temperature of the battery 30 detected being sent to, receives controller 20.Controller 20 is received to be additionally operable to Control instruction is generated according to the real-time voltage of battery 30 and real time temperature.
For example, the output voltage of rectification circuit 102 is 10V, voltage threshold 9V, then comparing result is output voltage mistake Height receives the output voltage that protection circuit 104 controls rectification circuit 102, its output voltage is made to be down to 9V, at this time to which protection connects Receive circuit 10 and battery 30.Meanwhile the real time temperature of battery 30 is increased to 60 degrees Celsius, needs to reduce the real-time of battery 30 at this time Temperature is to 45 degrees Celsius.On the basis of above-mentioned output voltage, then it is superimposed the corresponding voltage adjustment amount of real time temperature, such as- 0.5V, that is, it is 8.5V to combine output voltage and real time temperature that can control the output voltage of rectification circuit 102.
For another example, the output current of rectification circuit 102 is 5A, current threshold 3.5A, then comparing result is output current mistake Height receives the output current that protection circuit 104 controls rectification circuit 102, so that its output current is down to 3.5V, to protect at this time Receiving circuit 10 and battery 30.Meanwhile the real time temperature of battery 30 is increased to 60 degrees Celsius, needs the reality for reducing battery 30 at this time Shi Wendu to 45 degrees Celsius.On the basis of above-mentioned output current, then it is superimposed the corresponding electric current adjustment amount of real time temperature, such as- 0.5A, that is, it is 3A to combine output current and real time temperature that can control the output current of rectification circuit 102.
As it can be seen that in conjunction with the real time temperature of the output voltage of rectification circuit 102 and battery 30 to receiving circuit in the present embodiment 10 output charging voltages controlled, make battery 30 real time temperature keep in the reasonable scope, reach protection battery 30 with And extend the purpose of 30 service life of battery.
In one embodiment, the protection signal of power management modules output can also be received by receiving controller 20, then root The output voltage and output current of the control rectification circuit 102 of circuit 104 are protected by reception according to the protection signal.Certainly, it receives Controller 10 can generate control instruction according to the real-time voltage and protection signal of battery 20, then send control instruction respectively To rectification circuit 102 and voltage conversion circuit 103.Control instruction is completed by rectification circuit 102 and voltage conversion circuit 103 to correspond to Voltage conversion.
For example, the protection signal of power management modules output is " 1 ", wherein symbol " 1 " indicates that battery temperature is excessively high.At this time Output voltage can be called to need the adjustment voltage being superimposed according to protection signal, or output current is called to need the adjustment being superimposed Electric current, to respectively by adjustment voltage (or the adjustment electric current) output voltage that is added to (or output current).Then control is received Device 20 generates control instruction according to the result after superposition, and control instruction is sent to rectification circuit 102 and voltage conversion circuit 103.Certainly, above-mentioned protection signal can also use other symbolic indications, can be configured according to concrete scene, not made herein It limits.
As it can be seen that receiving circuit and battery can be further protected by receiving protection signal in the present embodiment, to extend two The service life of person.
Fig. 5 is a kind of structure diagram of the wireless charging device shown according to another exemplary embodiment.Referring to Fig. 5, On the basis of wireless charging device shown in Fig. 3 or Fig. 4, in the wireless charging device receive controller 20 can also and rectified current Road 102 connects, for control instruction to be sent to rectification circuit 102.Rectification circuit 102 when receiving above-mentioned control instruction, It is the corresponding DC voltage of the control instruction by AC energy rectification.In one embodiment, rectification circuit 102 is by before controlling, Its DC voltage exported can be 9V, and then the DC voltage of 9V is converted to the charging voltage (left sides 5V by voltage conversion circuit 103 It is right).After being controlled, the DC voltage of output can be 5.5V, 6V, 7V or 8V, i.e. rectification circuit 102 has more Output selection.In this way, the voltage difference of 103 input voltage of voltage conversion circuit and output voltage can become smaller, so as to reduce The conversion frequency of voltage conversion circuit 103 reduces its loss.
As it can be seen that controlling the output of rectification circuit 102 in the present embodiment by reception controller 20, make rectification circuit 102 and electricity Voltage and current between voltage conversion circuit 103 matches, and the transfer efficiency both to optimize further decreases receiving circuit 10 loss, and the temperature for receiving circuit 10 and battery 30 is further decreased, be conducive to the charging rate for improving battery 30.
It will be appreciated that in Fig. 1~wireless charging device shown in fig. 5, which can also include hair Transmit-receive radio road 40 and mission controller 50.Wherein, radiating circuit 40 may include transmitting coil 401, power amplifier 402, charging Device 403 and transmitting protection circuit 404.The alternating current (by taking China's Mainland as an example) of 220V~50Hz can be inserted in charger 403, will Alternating current is converted to DC voltage, and then power amplifier 402 carries out power adjustment to DC voltage and is sent to transmitting coil 401, transmitting coil 401 is to 101 radiation crosslinking electric energy of receiving coil.
During to 101 radiation crosslinking electric energy of receiving coil, power management mould can will be come from by receiving controller 20 The real time temperature and protection signal of group are sent to mission controller 50 by receiving coil 101 and transmitting coil 401.For example, real Shi Wendu be 50 degrees Celsius, be converted to binary format by this 50 degrees Celsius, by after binary system real time temperature modulation (frequency modulation, Amplitude modulation) after mission controller 50 is sent to by receiving coil 101 and transmitting coil 401.Mission controller 50 obtains after demodulating Real time temperature, and according to the output power of real time temperature control power amplifier 402.For example, transmitting protection circuit 404 can be with The output current and output voltage of limiting power amplifier 402 reach reduction electricity to reduce the power of the reception of receiving circuit 10 The purpose of the real time temperature in pond 30.For another example, transmitting protection circuit 404 can turn down the amplification factor of power amplifier 402, by work( 402 adjust automatically output voltage of rate amplifier and output current achieve the purpose that adjust 40 output power of radiating circuit, Jin Erke To adjust the real time temperature of battery 30.
Fig. 6 is a kind of structure diagram of the wireless charging device shown according to another exemplary embodiment.Referring to Fig. 6, On the basis of wireless charging device shown in Fig. 2~Fig. 5, mission controller 50 can also be with charger 403 in wireless charging device Connection.In this way, the control instruction that charger 403 can respond the reception of mission controller 50 adjusts itself output voltage.For example, When battery 30 just starts to charge up, the real-time voltage of battery 30 is relatively low (such as 3.5V), and the output voltage of transmitting coil 401 can at this time Think 8.5V;With the increase (such as 5V) of 30 real-time voltage of battery, the output voltage of transmitting coil 401 can be adjusted at this time 10V。
In one embodiment, the control instruction of reception can also be sent to charger 403 by mission controller 50.Charger 403 can parse the control instruction, the corresponding output voltage for it is expected charger 403 of the control instruction be obtained, if the output is electric Reduce off-flavor is normal, voltage of the output of charger 403 less than the output voltage of desired charger 403.
It is assumed that in 30 normal charging process of battery, the output voltage of charger 403 is 15V.In a scene, charging It is 20V that device 403, which parses desired output voltage, and output voltage 20V is abnormal voltage compared with 15V, to prevent transmission of electricity electricity Pressure increases damage battery suddenly, then can be 16V with output voltage.When parsing subsequent control instruction and remaining as 20V, charger 403 can adjust output voltage until meeting 20V according to above-mentioned steps.As it can be seen that defeated less than it is expected by output in the present embodiment Go out the voltage of voltage, can not only meet the portion requirements of battery 30, voltage can also be avoided to cross macrolesion battery.
In another scene, charger 403 is when parsing desired output voltage exception, the 20V in a scene as above, Current output voltage 20V can temporarily be kept;Parsing control instruction is then proceeded to, if follow-up multiple (quantity can be arranged) Control instruction parses desired output voltage and remains as 20V, then confirms that battery 30 needs the voltage of 20V, then directly exports 20V To meet the actual demand of battery 30, the probability that output voltage crosses macrolesion battery 30 is reduced.
Fig. 7 is a kind of flow diagram of wireless charging method shown according to an exemplary embodiment.It, should referring to Fig. 7 Wireless charging method includes:
701, obtain the real-time voltage of battery;
702, control instruction is generated according to the real-time voltage, and the control instruction is sent to receiving circuit;It is described Control instruction indicates that the receiving circuit adjustment is transmitted to the charging voltage of the battery;
The charging voltage and the difference of the real-time voltage belong to preset range;The upper limit value of the preset range according to The internal resistance of the battery determines.
As it can be seen that by making the difference of charging voltage and virtual voltage belong to preset range in the present embodiment, it can reduce and connect Receive the input power or input voltage of circuit;Also, with the increase of battery virtual voltage, the input voltage of receiving circuit and Voltage difference between output voltage becomes smaller, and can reduce the electric energy loss of receiving circuit in this way, improves its transfer efficiency.In addition, The present embodiment can also reduce the temperature for receiving circuit, improve the charging rate of battery.
Fig. 8 is a kind of flow diagram of wireless charging method shown according to an exemplary embodiment.Referring to Fig. 8, On the basis of wireless charging method shown in Fig. 7, which may include:
801, the control instruction is sent to mission controller;The control instruction indicates the mission controller adjustment The output power of radiating circuit.
As it can be seen that adjusting the output power of radiating circuit in the present embodiment according to control instruction by reception controller, be conducive to It helps receiving circuit to adjust charging voltage, improves regulating the speed for charging voltage;And it can between receiving circuit and radiating circuit To optimize the matching degree of voltage and current, reach the loss for reducing receiving circuit 10, further decreases and receive circuit 10 and battery The purpose of 30 temperature.
Fig. 9 is a kind of flow diagram of wireless charging method shown according to an exemplary embodiment.The transmitting electricity Road includes charger;The charger is connect with the mission controller;The mission controller sends the control instruction Give the charger (corresponding step 901);Referring to Fig. 9, on the basis of wireless charging method shown in Fig. 8, the wireless charging side Method may include:
902, the charger parses the control instruction, obtains the corresponding expectation charger of the control instruction Output voltage;
903, if the output voltage for it is expected charger is abnormal, output is less than the output for it is expected charger The voltage of voltage.
As it can be seen that the voltage in the present embodiment by output less than desired output voltage, can not only meet the portion of battery 30 Divide demand, voltage can also be avoided to cross macrolesion battery.In addition, can also temporarily keep current output electricity in the present embodiment Pressure;Parsing control instruction is then proceeded to, if follow-up multiple (quantity can be arranged) control instructions parse desired output electricity It presses identical, then directly exports the actual demand of the desired output voltage to meet battery, reduce output voltage and cross macrolesion electricity The probability in pond.
Figure 10 is a kind of flow diagram of wireless charging method shown according to an exemplary embodiment.Referring to Figure 10, On the basis of wireless charging method shown in Fig. 7, which may include:
1001, obtain the real time temperature of the battery.
At this point, step 702 may include:
Control instruction is generated according to the real-time voltage and the real time temperature, and the control instruction is sent to reception Circuit;The control instruction indicates that the receiving circuit adjustment is transmitted to the charging voltage of the battery;The charging voltage with The difference of the real-time voltage belongs to preset range;The upper limit value of the preset range is determined according to the internal resistance of the battery.
Transmitting protection circuit can be with the output current and output voltage of limiting power amplifier, to reduce in the present embodiment The power that receiving circuit receives achievees the purpose that the real time temperature for reducing battery.
Figure 11 is a kind of flow diagram of wireless charging method shown according to an exemplary embodiment.Referring to Figure 11, On the basis of wireless charging method shown in Fig. 7, which may include:
1101, obtain the protection signal that power management modules are sent;
At this point, step 702 may include:
Control instruction is generated according to the real-time voltage and the protection signal, and the control instruction is sent to reception Circuit;The control instruction indicates that the receiving circuit adjustment is transmitted to the charging voltage of the battery;The charging voltage with The difference of the real-time voltage belongs to preset range;The upper limit value of the preset range is determined according to the internal resistance of the battery.
Transmitting protection circuit can limit or reduce the output current and output voltage of power amplifier in the present embodiment, Achieve the purpose that adjust 40 output power of radiating circuit, and then the real time temperature of battery 30 can be adjusted.
It should be noted that the wireless charging method for respectively implementing to exemplify shown in Fig. 7~Figure 11 is adapted to Fig. 2~Fig. 6 institutes Show that each wireless charging device for implementing to exemplify, each step of wireless charging method can refer to the description of wireless charging device. It will be appreciated that in the structure change of wireless charging device, which can also change accordingly, herein no longer in detail Thin description.
Figure 12 is the block diagram according to a kind of electronic equipment shown in an exemplary embodiment.For example, electronic equipment 1200 can To be mobile phone, computer, digital broadcast terminal, messaging devices, game console, tablet device, Medical Devices are good for Body equipment, personal digital assistant etc..
Referring to Fig.1 2, electronic equipment 1200 may include following one or more components:Processing component 1202, memory 1204, power supply module 1206, multimedia component 1208, audio component 1210, the interface 1212 of input/output (I/O), sensor Component 1214 and communication component 1216 can also include the wireless charging device described in Fig. 2~Fig. 6.
The integrated operation of 1202 usual control device 1200 of processing component, such as with display, call, data communication, Camera operation and record operate associated operation.Processing component 1202 may include one or more processors 1220 to execute Instruction.In addition, processing component 1202 may include one or more modules, convenient between processing component 1202 and other assemblies Interaction.For example, processing component 1202 may include multi-media module, with facilitate multimedia component 1208 and processing component 1202 it Between interaction.In one embodiment, processing component 1202 may include mission controller and reception controller, the reception controller It can be with information such as the real-time voltages, real time temperature or protection signal for the treatment of of battery;The mission controller can forward reception to control The control instruction that device processed is sent, can be with information such as the real-time voltages, real time temperature or protection signal for the treatment of of battery.
Memory 1204 is configured as storing various types of data to support the operation in device 1200.These data Example includes the instruction for any application program or method that are operated on device 1200, contact data, telephone book data, Message, picture, video etc..Memory 1204 can by any kind of volatibility or non-volatile memory device or they Combination is realized, such as static RAM (SRAM), electrically erasable programmable read-only memory (EEPROM), it is erasable can Program read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory Reservoir, disk or CD.In one embodiment, memory 1204 can store the memory of mission controller executable instruction. Wherein, the reception controller is used for:Obtain the real-time voltage of battery;Control instruction is generated according to the real-time voltage, and will The control instruction is sent to receiving circuit;The control instruction indicates that the receiving circuit adjustment is transmitted to filling for the battery Piezoelectric voltage;The charging voltage and the difference of the real-time voltage belong to preset range;The upper limit value of the preset range according to The internal resistance of the battery determines.
Power supply module 1206 provides electric power for the various assemblies of device 1200.Power supply module 1206 may include power management System, one or more power supplys and other generated with for device 1200, management and the associated component of distribution electric power.
Multimedia component 1208 is included in the screen of one output interface of offer between described device 1200 and user. In some embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, Screen may be implemented as touch screen, to receive input signal from the user.Touch panel includes that one or more touch passes Sensor is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding is dynamic The boundary of work, but also detect duration and pressure associated with the touch or slide operation.
Audio component 1210 is configured as output and/or input audio signal.For example, audio component 1210 includes a wheat Gram wind (MIC), when device 1200 is in operation mode, when such as call model, logging mode and speech recognition mode, microphone quilt It is configured to receive external audio signal.The received audio signal can be further stored in memory 1204 or via communication Component 1216 is sent.In some embodiments, audio component 1210 further includes a loud speaker, is used for exports audio signal.
I/O interfaces 1212 provide interface, above-mentioned peripheral interface module between processing component 1202 and peripheral interface module Can be keyboard, click wheel, button etc..These buttons may include but be not limited to:Home button, volume button, start button and Locking press button.
Sensor module 1214 includes one or more sensors, and the state for providing various aspects for device 1200 is commented Estimate.For example, sensor module 1214 can detect the state that opens/closes of device 1200, the relative positioning of component, such as institute The display and keypad that component is device 1200 are stated, sensor module 1214 can be with detection device 1200 or device 1,200 1 The position change of a component, the existence or non-existence that user contacts with device 1200,1200 orientation of device or acceleration/deceleration and dress Set 1200 temperature change.Sensor module 1214 may include proximity sensor, be configured in not any physics It is detected the presence of nearby objects when contact.Sensor module 1214 can also include optical sensor, as CMOS or ccd image are sensed Device, for being used in imaging applications.In some embodiments, which can also include acceleration sensing Device, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 1216 is configured to facilitate the communication of wired or wireless way between device 1200 and other equipment.Dress The wireless network based on communication standard, such as WiFi can be accessed by setting 1200,2G or 3G or combination thereof.It is exemplary at one In embodiment, communication component 1216 receives broadcast singal or broadcast correlation from external broadcasting management system via broadcast channel Information.In one exemplary embodiment, the communication component 1216 further includes near-field communication (NFC) module, to promote short distance Communication.For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band can be based in NFC module (UWB) technology, bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 1200 can be by one or more application application-specific integrated circuit (ASIC), number Signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are realized.
In the exemplary embodiment, it includes the non-transitorycomputer readable storage medium instructed, example to additionally provide a kind of Such as include the memory 1204 of instruction, above-metioned instruction can be executed by the processor 1220 of device 1200.For example, the non-transitory Computer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk and optical data storage Equipment etc..
Those skilled in the art will readily occur to its of the disclosure after considering specification and putting into practice disclosure disclosed herein Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or Person's adaptive change follows the general principles of this disclosure and includes the undocumented common knowledge in the art of the disclosure Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.

Claims (15)

1. a kind of wireless charging device, which is characterized in that the equipment includes:Receiving circuit and reception controller;The reception Controller is connect with the receiving circuit;The receiving circuit exports charging voltage to battery;
The reception controller is used to generate control instruction according to the real-time voltage of the battery, and the control instruction is sent To the receiving circuit;
The receiving circuit is used to respond the charging voltage that the control instruction adjustment is transmitted to the battery;The charging voltage Belong to preset range with the difference of the real-time voltage;The upper limit value of the preset range is determined according to the internal resistance of the battery.
2. wireless charging device according to claim 1, which is characterized in that the receiving circuit includes:It is receiving coil, whole Current circuit and voltage conversion circuit;The receiving coil is connect with the rectification circuit;The voltage conversion circuit with it is described whole Current circuit connects;The reception controller is connect with the voltage conversion circuit;
The receiving coil is used to receive the AC energy of radiation, and the AC energy is transferred to the rectification circuit;
The rectification circuit is used to the AC energy rectification be DC voltage;
The voltage conversion circuit is used to that the DC voltage to be converted to charging voltage according to the control instruction.
3. wireless charging device according to claim 2, which is characterized in that the reception controller also with the rectified current Road connects, and is additionally operable to the control instruction being sent to the rectification circuit;
The rectification circuit is used to the AC energy rectification be the corresponding DC voltage of the control instruction.
4. wireless charging device according to claim 2, which is characterized in that the receiving circuit further includes:Receive protection Circuit;The reception protection circuit is connect with the rectification circuit and the reception controller respectively;
The reception controller is additionally operable to obtain the output voltage of the rectification circuit and output current respectively and the voltage turns Change the output voltage and output current of circuit, and according to the comparing result of the output voltage and voltage threshold and/or described The comparing result of output current and current threshold protects rectification circuit described in circuit control by the reception.
5. wireless charging device according to claim 1, which is characterized in that the reception controller also with the battery Power management modules connect, and the power management modules are used to the real time temperature of the battery detected being sent to described connect Admission controller;The reception controller is additionally operable to generate control instruction according to the real-time voltage and the real time temperature.
6. wireless charging device according to claim 1, which is characterized in that the reception controller is additionally operable to obtain power supply The protection signal that module is sent is managed, and the control instruction is generated according to the real-time voltage and the protection signal.
7. according to claim 1~6 any one of them wireless charging device, which is characterized in that the equipment further includes:Transmitting Circuit and mission controller;The mission controller is connect with the radiating circuit;The radiating circuit is used for by wirelessly connecting It connects to the receiving circuit transmission power;
The reception controller is additionally operable to the control instruction being sent to the mission controller;
The mission controller is used to respond the output power of the control instruction adjustment radiating circuit.
8. wireless charging device according to claim 7, which is characterized in that the radiating circuit includes charger;It is described Charger is connect with the mission controller;
The charger is used to respond the control instruction that the mission controller receives and adjusts itself output voltage, and described When the output voltage exception of the corresponding expectation charger of control instruction, output is less than the output voltage for it is expected charger Voltage.
9. a kind of wireless charging method, which is characterized in that the method includes:
Obtain the real-time voltage of battery;
Control instruction is generated according to the real-time voltage, and the control instruction is sent to receiving circuit;The control instruction Indicate that the receiving circuit adjustment is transmitted to the charging voltage of the battery;
The charging voltage and the difference of the real-time voltage belong to preset range;The upper limit value of the preset range is according to The internal resistance of battery determines.
10. wireless charging method according to claim 9, which is characterized in that the method further includes:
The control instruction is sent to mission controller;The control instruction indicates that the mission controller adjusts radiating circuit Output power.
11. wireless charging method according to claim 10, which is characterized in that the radiating circuit includes charger;Institute Charger is stated to connect with the mission controller;The control instruction is sent to the charger by the mission controller;Institute The method of stating further includes:
The charger parses the control instruction, obtains the corresponding output electricity for it is expected charger of the control instruction Pressure;
If the output voltage for it is expected charger is abnormal, electricity of the output less than the output voltage for it is expected charger Pressure.
12. wireless charging method according to claim 9, which is characterized in that the method further includes:
Obtain the real time temperature of the battery;
Generating control instruction according to the real-time voltage includes:
Control instruction is generated according to the real-time voltage and the real time temperature.
13. wireless charging method according to claim 9, which is characterized in that the method further includes:
Obtain the protection signal that power management modules are sent;
Generating control instruction according to the real-time voltage includes:
Control instruction is generated according to the real-time voltage and the protection signal.
14. a kind of electronic equipment, which is characterized in that the electronic equipment includes:
Such as claim 1~8 any one of them wireless charging device;
Mission controller;
Receive controller;
Memory for storing the mission controller executable instruction;
Wherein, the reception controller is used for:
Obtain the real-time voltage of battery;
Control instruction is generated according to the real-time voltage, and the control instruction is sent to receiving circuit;The control instruction Indicate that the receiving circuit adjustment is transmitted to the charging voltage of the battery;
The charging voltage and the difference of the real-time voltage belong to preset range;The upper limit value of the preset range is according to The internal resistance of battery determines.
15. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor It is realized when execution:
Obtain the real-time voltage of battery;
Control instruction is generated according to the real-time voltage, and the control instruction is sent to receiving circuit;The control instruction Indicate that the receiving circuit adjustment is transmitted to the charging voltage of the battery;
The charging voltage and the difference of the real-time voltage belong to preset range;The upper limit value of the preset range is according to The internal resistance of battery determines.
CN201810268897.4A 2018-03-29 2018-03-29 Wireless charging equipment, method and device and electronic equipment Active CN108448694B (en)

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