CN202749913U - Wireless charger receiver and wireless terminal - Google Patents

Wireless charger receiver and wireless terminal Download PDF

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Publication number
CN202749913U
CN202749913U CN2012203056005U CN201220305600U CN202749913U CN 202749913 U CN202749913 U CN 202749913U CN 2012203056005 U CN2012203056005 U CN 2012203056005U CN 201220305600 U CN201220305600 U CN 201220305600U CN 202749913 U CN202749913 U CN 202749913U
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China
Prior art keywords
electric quantity
wireless terminal
battery electric
charging
adjusting device
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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CN2012203056005U
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Chinese (zh)
Inventor
邓小宁
樊科
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China Mobile Communications Group Co Ltd
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China Mobile Communications Group Co Ltd
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Priority to CN2012203056005U priority Critical patent/CN202749913U/en
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Publication of CN202749913U publication Critical patent/CN202749913U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model provides a wireless charger receiver and a wireless terminal, being applied to the wireless terminal and comprising an induction resonance circuit, a charging circuit, a controller and an adjusting device, wherein the induction resonance circuit is connected with the charging circuit, and is used for converting the inducted electromagnetic signal into a voltage signal which is output to the charging circuit; the controller is connected with the adjusting device, and is used for outputting the charged or uncharged control signal to the adjusting device according to the current battery level value and the current battery level state for the wireless terminal based on the set period, and updates the battery level state according to the current battery level value and the type of the emit control signal; and the adjusting device is connected with the induction resonance circuit, and is used for adjusting the output voltage of the induction resonance circuit according to the control signal emit from the controller so as to realize intelligent control of the wireless terminal battery charging, thus avoiding unnecessary charging operation, and solving the problem that frequent charging occurs when the wireless terminal device immediately charges if the wireless terminal device induces the electromagnetic signal.

Description

A kind of wireless charger receiving system and wireless terminal
Technical field
The utility model relates to technical field of wireless terminals, relates in particular to a kind of wireless charger receiving system and wireless terminal.
Background technology
Development along with electronic technology, the kind of electronic product is more and more, such as mobile phone, video camera, notebook computer, walkman, panel computer etc., above-mentioned portable electric appts adopts rechargeable battery usually, when charging, what mainly adopt is that charger one end connects AC power, and the other end connects traditional charging modes of portable electric appts rechargeable battery.This traditional charging modes has a lot of disadvantageous places, plugs at first frequently the joint that charger is easy to damage portable electric appts, and in addition, charger one end connects the danger that AC power also may be brought electric shock.Therefore, the non-contact inductive charger was born in eighties of last century latter stage, relied on that it is easy to carry, cost is low, need not the advantage such as wiring and receive rapidly all circles' concern.
Present existing wireless charger can charge simultaneously to a plurality of equipment, but, the user is often for the consideration to battery loss, do not wish that portable electric appts charges to it when electric weight is also relatively more sufficient, but wish when electric weight exhausts soon, again it to be charged, to reduce battery loss.Yet, state of development from the wireless charging technology, the size of wireless charger emitter presents diversified trend, larger-size wireless charger is constantly emerging in large numbers, accordingly, the overlay area that produces electromagnetic signal is also enlarging, if portable electric appts has entered the charging zone because of carelessness, will charge at once.
Therefore, need a kind of wireless charger receiving system and wireless terminal badly, avoid portable electric appts to enter immediately charging behind the wireless charging area, thereby reduce the loss to battery.
The utility model content
The utility model embodiment provides a kind of wireless charger receiving system and wireless terminal, in order to solve existing wireless charger to the battery loss problem of wireless terminal, realizes the Based Intelligent Control to the wireless terminal charging.
The utility model embodiment provides a kind of wireless charger receiving system, is applied to wireless terminal, and described wireless charger receiving system comprises: induction resonant tank, charging circuit, controller and adjusting device;
Described induction resonant tank is connected with described charging circuit, is used for the electromagnetic signal of sensing is converted to voltage signal, exports to described charging circuit;
Described controller is connected with described adjusting device, be used for according to setting cycle, according to the current battery electric quantity value of wireless terminal and current battery electric quantity state, export the control signal of charging or not charging to described adjusting device, and upgrade battery electric quantity state according to the type of current battery electric quantity value and the control signal of sending;
Described adjusting device is connected with described induction resonant tank, is used for regulating according to the control signal that described controller sends the output voltage of described induction resonant tank.
Described induction resonant tank, concrete being used for sends enabling signal to described controller when sensing electromagnetic signal, and described electromagnetic signal is converted to voltage signal, exports to described charging circuit;
Described controller, concrete being used for after the enabling signal according to described induction resonant tank starts, according to setting cycle, according to the current battery electric quantity value of wireless terminal and current battery electric quantity state, export the control signal of charging or not charging to described adjusting device, and upgrade battery electric quantity state according to the type of current battery electric quantity value and the control signal of sending.
Described adjusting device, concrete charging control signal for sending according to described controller is regulated the output voltage of described induction resonant tank to maximum; Perhaps, according to the not charging control signal that described controller sends, regulate the output voltage of described induction resonant tank to minimum value.
Described controller comprises memory cell, comparing unit and processing unit; Wherein:
Described memory cell is used for storing the battery electric quantity threshold value of described wireless terminal and current battery electric quantity state;
Described comparing unit connects described memory cell, is used for the power threshold comparison that the battery electric quantity value that described wireless terminal is current and described memory cell are stored;
Described processing unit, be used for when described comparing unit judges that the current battery electric quantity value of described wireless terminal is less than or equal to minimum threshold, to described adjusting device output charging control signal, and the current battery electric quantity state of described wireless terminal is set to the first state; When described comparing unit is judged the current battery electric quantity value of described wireless terminal more than or equal to max-thresholds, export not charging control signal to described adjusting device, and the current battery electric quantity state of described wireless terminal is set to the second state; When described comparing unit is judged the current battery electric quantity value of described wireless terminal greater than minimum threshold and less than max-thresholds, according to current battery electric quantity state, export the control signal of charging or not charging to described adjusting device.
Described processing unit, concrete being used for judges that when described comparing unit the current battery electric quantity value of described wireless terminal is greater than minimum threshold and less than max-thresholds, and when the current battery electric quantity state of wireless terminal is the first state, to described adjusting device output charging control signal; When described comparing unit is judged the current battery electric quantity value of described wireless terminal greater than minimum threshold and less than max-thresholds, and the current battery electric quantity state of wireless terminal is exported not charging control signal to described adjusting device when being the second state.
Described adjusting device is swept resistance.
Described controller is comparator or divider.
The utility model embodiment also provides a kind of wireless terminal, comprises described wireless charger receiving system, and described wireless terminal comprises the electric weight detection module, and described electric weight detection module is used for obtaining described battery electric quantity value, and feeds back to described controller.
Compared with prior art, above-described embodiment of the present utility model has following useful technique effect:
The utility model embodiment increases controller and adjusting device at existing wireless charger receiving system, transmitted control signal by current battery electric quantity value and the battery electric quantity state of controller according to wireless terminal, and upgrade current battery electric quantity state, realize regulating the output voltage of induction resonant tank by regulating adjusting device, further control the charging operations of charging circuit, only when the current battery electric quantity value of wireless terminal and battery electric quantity state satisfy certain condition, just charge, realization is to the Based Intelligent Control of wireless terminal battery charging, effectively avoided unnecessary charging operations, having solved the wireless terminal device frequent charge that causes of charging immediately when sensing electromagnetic signal increases the problem of battery loss, and then has increased the service time of battery.
Description of drawings
The wireless terminal that Fig. 1 provides for the utility model embodiment and the structural representation of wireless charger receiving system;
The structural representation of the controller of the wireless charger receiving system that Fig. 2 provides for the utility model embodiment:
The schematic flow sheet that the wireless charger receiving system control wireless terminal that Fig. 3 provides for the utility model embodiment charges.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is carried out clear, complete description, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills belong to protection range of the present utility model not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1, the wireless charger receiving system 1 that the utility model embodiment provides comprises: induction resonant tank 11, charging circuit 12, controller 13 and adjusting device 14.Induction resonant tank 11 links to each other with controller 13, adjusting device 14 and charging circuit 12 respectively, and charging circuit 12 links to each other with battery 2, and controller 13 links to each other with battery 2 with adjusting device 14 respectively.
Wherein, induction resonant tank 11 is used for sending enabling signals to controller 13, and the electromagnetic signal of sensing can being converted to voltage signal when sensing the electromagnetic signal that the wireless charger dispensing device sends, and exports to charging circuit 12; Charging circuit 12 is used for after the output voltage rectification of responding to resonant tank 11, the filtering, to battery 2 chargings; Controller 13 is used for after the enabling signal according to induction resonant tank 11 starts, according to setting cycle, according to the current battery electric quantity value of wireless terminal and current battery electric quantity state, export the control signal of charging or not charging to adjusting device 14, and upgrade battery electric quantity state according to the type of battery electric quantity value and the control signal of sending; Adjusting device 14 is used for regulating according to the control signal that controller 13 sends the output voltage of induction resonant tank 11.
In the utility model embodiment, the battery electric quantity value can be battery electric quantity percentage.
Induction resonant tank 11 can be selected series resonant circuit or antiresonant circuit, if select series resonant circuit, adjusting device 14 is in parallel with induction resonant tank 11, if select antiresonant circuit, adjusting device 14 is connected with induction resonant tank 11.In the utility model embodiment, select series resonant circuit, adjusting device 14 is in parallel with induction resonant tank 11, and the size of the equivalent resistance by regulating adjusting device 14 can be regulated the output voltage of induction resonant tank 11 and then the size of regulating charging circuit 14 voltages.Adjusting device 14 can be swept resistance, also can be the electronic components such as diode or triode.
Referring to shown in Figure 2, controller 13 comprises memory cell 131, comparing unit 132 and processing unit 133.
Memory cell 131 is used for the power threshold of storage battery 2 and the state of charge of battery 2, and power threshold comprises max-thresholds and minimum threshold, and power threshold can preset, and preferred, max-thresholds can be made as 90%, and minimum threshold can be made as 10%.State of charge is used for the dynamical state that expression wireless terminal battery electric quantity changes, comprise the first state and the second state, the first state refers to, the electric weight of battery 2 is in below the electric weight minimum threshold, and the state that electric weight is increasing (for example, wireless terminal is in charged state); The second state refers to, the electric weight of battery 2 is in more than the electric weight max-thresholds, and the state that reducing of electric weight (for example, wireless terminal is in use, just at the state of consumes power).The purpose that current battery electric quantity state is set is, arrives at next cycle, when carrying out the comparison of battery electric quantity, as the foundation of selecting output control signal type (charging or not charging control signal).
Comparing unit 132 connects memory cell 131, is used for the power threshold (comprising max-thresholds and/or minimum threshold) of the current battery electric quantity percentage of wireless terminal and memory cell 131 storages is compared.Preferably, comparing unit 132 can select divider or comparator to realize.
Processing unit 133 is used for the comparative result that obtains according to comparing unit 132, sends charging or charging control signal not to adjusting device 14; Perhaps, the current battery electric quantity state of the comparative result that obtains according to comparing unit 132 and memory cell 131 storages sends charging or charging control signal not to adjusting device 14.
Describe the flow process of battery charging of the wireless charger receiving system control wireless terminal of the utility model embodiment in detail below in conjunction with Fig. 3, as shown in the figure, this flow process may further comprise the steps:
Step 301 when induction resonant tank 11 is sensed electromagnetic induction signal, sends enabling signal to controller 13.
Concrete, when if wireless terminal enters within the range of signal of wireless charger dispensing device, induction resonant tank 11 can be sensed electromagnetic induction signal, at this moment, induction resonant tank 11 sends enabling signal to controller 13, starts the wireless charger receiving system of wireless terminal.
Step 302, controller 13 are obtained the current electric quantity percentage of battery 2.
Concrete, when comparing unit 132 starts later in the enabling signal that receives 11 transmissions of induction resonant tank, receive the electric weight percentage of the battery 2 of electric weight detection module 3 feedbacks.Electric weight detection module 3 can read by the driving layer of wireless terminal operation system the electric weight percentage of battery 2, and electric weight percentage is sent to the comparing unit 132 of controller 13, and this process belongs to prior art, does not repeat them here.
Step 303, controller 13 is compared battery 2 current electric quantity percentages with the power threshold of the battery 2 that prestores, if current electric quantity percentage is less than or equal to minimum threshold, then execution in step 304; If current electric quantity percentage is greater than minimum threshold and less than max-thresholds, and battery current electric quantity state is that then execution in step 306 from increasing below the minimum threshold; If current electric quantity percentage is more than or equal to max-thresholds, then execution in step 308; If current electric quantity percentage is greater than minimum threshold and less than max-thresholds, and current battery electric quantity state is that then execution in step 310 from reducing more than the max-thresholds.
Concrete, comparing unit 132 is according to the cycle of setting, the power threshold that prestores in the current battery electric quantity percentage that obtains and the memory cell 131 is compared, according to comparative result, perhaps according to comparative result in conjunction with current battery electric quantity state, transmitted control signal to adjusting device 14 by processing unit 133, with the voltage of adjusting induction resonant tank 11, thereby realize the operation that control wireless terminal battery charges.
Step 304, controller 13 sends charging control signal to adjusting device 14, and current battery electric quantity state is set to the first state.
Concrete, when current battery electric quantity percentage was less than or equal to minimum threshold, processing unit 133 sent charging control signal to adjusting device 14, at this moment, battery electric quantity is in the state of increase, and therefore, current battery electric quantity state is set to the first state in memory cell 131.
Step 305, adjusting device 14 are regulated the output voltage of induction resonant tank 11 according to charging control signal, so that the battery 2 of 12 pairs of wireless terminals of charging circuit charges.
Concrete, after adjusting device 14 receives charging control signal, reduce equivalent resistance to minimum value, corresponding, the voltage of induction resonant tank 11 increases to maximum immediately, and at this moment, the battery 2 of 12 pairs of wireless terminals of charging circuit charges.
Step 306, controller 13 sends charging control signal to adjusting device 14.
Concrete, when current battery electric quantity percentage greater than minimum threshold and less than max-thresholds, and when current battery electric quantity state is the first state, illustrate that wireless terminal charges, be that battery electric quantity is in the increase state, but electric weight not yet reaches max-thresholds, need to continue charging, therefore, processing module 133 sends charging control signal to adjusting device 14.
Step 307, adjusting device 14 are regulated the output voltage of induction resonant tank 11 according to charging control signal, so that the battery 2 of 12 pairs of wireless terminals of charging circuit charges.
The process that the charging control signal that adjusting device 14 sends according to controller 13 is regulated the output voltage of responding to resonant tank 11 is identical with step 305, does not repeat them here.
Step 308, controller 13 sends not charging control signal to adjusting device 14, and current battery electric quantity state is set to the second state.
Concrete, when current battery electric quantity percentage during more than or equal to max-thresholds, illustrate that battery electric quantity is full of, need not to charge, therefore, processing unit 133 sends not charging control signal to adjusting device 14.Because wireless terminal is in open state will the consuming cells electric weight, though current battery electric quantity greater than max-thresholds, battery electric quantity also can reduce gradually, processing unit 133 current battery electric quantity state in memory cell 131 is set to the second state.
Step 309, adjusting device 14 bases are charging control signal not, regulates the output voltage of induction resonant tank 11, so that charging circuit 12 stops battery 2 chargings to wireless terminal.
Concrete, adjusting device 14 increases equivalent resistance to maximum after receiving not charging control signal, and corresponding, the voltage of induction resonant tank 11 is decreased to minimum value immediately, and at this moment, charging circuit 12 stops battery 2 chargings to wireless terminal.
Step 310, controller 13 sends not charging control signal to adjusting device 14.
Concrete, when current battery electric quantity percentage greater than minimum threshold and less than max-thresholds, and when current battery electric quantity state is the second state, the battery electric quantity that wireless terminal is described is in reduction state (just at the consuming cells electric weight, for example, wireless terminal is in the middle of the use), at this moment, need not charging, therefore, processing module 133 sends not charging control signal to adjusting device 14.
Step 311, adjusting device 14 bases are charging control signal not, regulates the output voltage of induction resonant tank 11, so that charging circuit 12 stops battery 2 chargings to wireless terminal.
Concrete, the process that the not charging control signal that adjusting device 14 sends according to controller 13 is regulated the voltage of responding to resonant tank 11 is identical with step 309, does not repeat them here.
Based on identical design, the utility model embodiment also provides a kind of wireless terminal, as shown in Figure 1, comprise aforesaid wireless charger receiving system 1, battery 2 and electric weight detection module 3, battery 2 links to each other with electric weight detection module 3 with wireless charger receiving system 1 respectively, electric weight detection module 3 is used for obtaining the charge value of battery 2, and feeds back to wireless charger receiving system 1.
In the middle of the utility model embodiment, if controller 13 judges that current battery electric quantity is less than or equal to minimum threshold, control is charged to the wireless terminal battery, and current battery electric quantity state is set to the first state; If the current battery electric quantity of controller 13 judgements more than or equal to max-thresholds, can be controlled the wireless terminal battery is stopped charging, and current battery electric quantity state is set to the second state; If controller 13 judges that current battery electric quantity greater than minimum threshold and greater than minimum threshold, also needs further to do further judgement according to battery electric quantity state, if current battery electric quantity state is the first state, then controls the wireless terminal battery is continued charging; If current battery electric quantity state is the second state, then control to the wireless terminal battery stop the charging.
The wireless charger receiving system that the utility model embodiment provides, whether not only can direct basis current battery electric quantity value control is to the battery charging of wireless terminal, can also be further according to the use state of current battery electric quantity, whether control is to the battery charging of wireless terminal, realization is to the Based Intelligent Control of wireless terminal battery charging, effectively avoided unnecessary charging operations, having solved the wireless terminal device frequent charge that causes of charging immediately when sensing electromagnetic signal increases the problem of battery loss, and then has increased the service time of battery.
It will be understood by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection range of the present utility model.

Claims (8)

1. a wireless charger receiving system is applied to wireless terminal, it is characterized in that, described wireless charger receiving system comprises: induction resonant tank, charging circuit, controller and adjusting device;
Described induction resonant tank is connected with described charging circuit, is used for the electromagnetic signal of sensing is converted to voltage signal, exports to described charging circuit;
Described controller is connected with described adjusting device, be used for according to setting cycle, according to the current battery electric quantity value of wireless terminal and current battery electric quantity state, export the control signal of charging or not charging to described adjusting device, and upgrade battery electric quantity state according to the type of current battery electric quantity value and the control signal of sending;
Described adjusting device is connected with described induction resonant tank, is used for regulating according to the control signal that described controller sends the output voltage of described induction resonant tank.
2. wireless charger receiving system as claimed in claim 1 is characterized in that,
Described induction resonant tank, concrete being used for sends enabling signal to described controller when sensing electromagnetic signal, and described electromagnetic signal is converted to voltage signal, exports to described charging circuit;
Described controller, concrete being used for after the enabling signal according to described induction resonant tank starts, according to setting cycle, according to the current battery electric quantity value of wireless terminal and current battery electric quantity state, export the control signal of charging or not charging to described adjusting device, and upgrade battery electric quantity state according to the type of current battery electric quantity value and the control signal of sending.
3. wireless charger receiving system as claimed in claim 1 is characterized in that,
Described adjusting device, concrete charging control signal for sending according to described controller is regulated the output voltage of described induction resonant tank to maximum; Perhaps, according to the not charging control signal that described controller sends, regulate the output voltage of described induction resonant tank to minimum value.
4. wireless charger receiving system as claimed in claim 1 is characterized in that, described controller comprises memory cell, comparing unit and processing unit; Wherein:
Described memory cell is used for storing the battery electric quantity threshold value of described wireless terminal and current battery electric quantity state;
Described comparing unit connects described memory cell, is used for the power threshold comparison that the battery electric quantity value that described wireless terminal is current and described memory cell are stored;
Described processing unit, be used for when described comparing unit judges that the current battery electric quantity value of described wireless terminal is less than or equal to minimum threshold, to described adjusting device output charging control signal, and the current battery electric quantity state of described wireless terminal is set to the first state; When described comparing unit is judged the current battery electric quantity value of described wireless terminal more than or equal to max-thresholds, export not charging control signal to described adjusting device, and the current battery electric quantity state of described wireless terminal is set to the second state; When described comparing unit is judged the current battery electric quantity value of described wireless terminal greater than minimum threshold and less than max-thresholds, according to current battery electric quantity state, export the control signal of charging or not charging to described adjusting device.
5. wireless charger receiving system as claimed in claim 4, it is characterized in that, described processing unit, concrete being used for judges that when described comparing unit the current battery electric quantity value of described wireless terminal is greater than minimum threshold and less than max-thresholds, and when the current battery electric quantity state of wireless terminal is the first state, to described adjusting device output charging control signal; When described comparing unit is judged the current battery electric quantity value of described wireless terminal greater than minimum threshold and less than max-thresholds, and the current battery electric quantity state of wireless terminal is exported not charging control signal to described adjusting device when being the second state.
6. such as each described wireless charger receiving system of claim 1-5, it is characterized in that, described adjusting device is swept resistance.
7. such as each described wireless charger receiving system of claim 1-5, it is characterized in that, described controller is comparator or divider.
8. wireless terminal that comprises each described wireless charger receiving system of claim 1-7, it is characterized in that, described wireless terminal comprises the electric weight detection module, and described electric weight detection module is used for obtaining described battery electric quantity value, and feeds back to described controller.
CN2012203056005U 2012-06-26 2012-06-26 Wireless charger receiver and wireless terminal Expired - Lifetime CN202749913U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104734314A (en) * 2015-03-05 2015-06-24 北京智付融汇科技有限公司 Active smart card
CN104868604A (en) * 2014-02-25 2015-08-26 宇龙计算机通信科技(深圳)有限公司 Terminal and wireless charging system and method
CN105340154A (en) * 2013-07-12 2016-02-17 株式会社Ihi Power-transfer system
CN105760928A (en) * 2016-02-23 2016-07-13 南京苗苗智能科技有限公司 Intelligent VIN electronic tag applied to RFID of Internet of vehicles
CN106026231A (en) * 2016-05-30 2016-10-12 广东欧珀移动通信有限公司 Wireless charging method and device
WO2017063135A1 (en) * 2015-10-13 2017-04-20 苏州宝润电子科技有限公司 Energy transmission optimization of foreign object monitoring and magnetic saturation
CN111148974A (en) * 2017-07-28 2020-05-12 阿莫善斯有限公司 Electronic meter
WO2020249099A1 (en) * 2019-06-12 2020-12-17 苏州宝时得电动工具有限公司 Battery pack
WO2021013258A1 (en) * 2019-07-25 2021-01-28 Oppo广东移动通信有限公司 Device to be charged, wireless charging method and system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105340154B (en) * 2013-07-12 2018-06-19 株式会社 Ihi Electrical power transmission system
CN105340154A (en) * 2013-07-12 2016-02-17 株式会社Ihi Power-transfer system
US9787104B2 (en) 2013-07-12 2017-10-10 Ihi Corporation Power transmission system
CN104868604A (en) * 2014-02-25 2015-08-26 宇龙计算机通信科技(深圳)有限公司 Terminal and wireless charging system and method
CN104868604B (en) * 2014-02-25 2019-03-22 宇龙计算机通信科技(深圳)有限公司 A kind of terminal, wireless charging system and method
CN104734314A (en) * 2015-03-05 2015-06-24 北京智付融汇科技有限公司 Active smart card
WO2017063135A1 (en) * 2015-10-13 2017-04-20 苏州宝润电子科技有限公司 Energy transmission optimization of foreign object monitoring and magnetic saturation
CN105760928A (en) * 2016-02-23 2016-07-13 南京苗苗智能科技有限公司 Intelligent VIN electronic tag applied to RFID of Internet of vehicles
CN106026231A (en) * 2016-05-30 2016-10-12 广东欧珀移动通信有限公司 Wireless charging method and device
CN106026231B (en) * 2016-05-30 2019-12-10 Oppo广东移动通信有限公司 Wireless charging method and device
CN111148974A (en) * 2017-07-28 2020-05-12 阿莫善斯有限公司 Electronic meter
WO2020249099A1 (en) * 2019-06-12 2020-12-17 苏州宝时得电动工具有限公司 Battery pack
WO2021013258A1 (en) * 2019-07-25 2021-01-28 Oppo广东移动通信有限公司 Device to be charged, wireless charging method and system
CN112290652A (en) * 2019-07-25 2021-01-29 Oppo广东移动通信有限公司 To-be-charged equipment, wireless charging method and system

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Granted publication date: 20130220