CN209217749U - Wireless charger - Google Patents

Wireless charger Download PDF

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Publication number
CN209217749U
CN209217749U CN201821968204.4U CN201821968204U CN209217749U CN 209217749 U CN209217749 U CN 209217749U CN 201821968204 U CN201821968204 U CN 201821968204U CN 209217749 U CN209217749 U CN 209217749U
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China
Prior art keywords
charging
circuit
frequency
frequency conversion
electrically connected
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CN201821968204.4U
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Chinese (zh)
Inventor
李贡献
杨勇升
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Shenzhen Ranvoo Technology Co Ltd
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Shenzhen Ranvoo Technology Co Ltd
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Priority to CN201821968204.4U priority Critical patent/CN209217749U/en
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Abstract

The utility model provides a kind of wireless charger, comprising: recognition unit is electrically connected with transmitting coil and control unit respectively, and for being identified to obtain identification signal to the charging equipment being placed on wireless charger;Control unit also respectively with determine frequency charging circuit and frequency conversion charging circuit is electrically connected, and for obtaining control signal according to identification signal, and control signal is transmitted to and determines frequency charging circuit or frequency conversion charging circuit;Determine frequency charging circuit to be also electrically connected with charging interface and transmitting coil respectively, determines frequency charging voltage to transmitting coil transmission for determining frequency mode when receiving control signal;Or frequency conversion charging circuit is also electrically connected with charging interface and transmitting coil respectively, for transmitting frequency conversion charging voltage to transmitting coil with variable mode when receiving control signal, fixed frequency charging or frequency conversion charging are carried out to charging equipment to realize, so as to support the charging equipment of IOS system and Android system to carry out fast charge simultaneously.

Description

Wireless charger
Technical field
The utility model relates to wireless charging technology more particularly to a kind of wireless chargers.
Background technique
There are mainly two types of wireless charging control methods for wireless charger in the prior art: constant frequency pressure regulating and frequency conversion tune duty Than both modes.The signal interference of the mode of constant frequency pressure regulating is smaller, and the mode of frequency conversion tune duty ratio is more efficient.It is right at present For the charging equipment of IOS system, wireless charging is mainly carried out using constant frequency pressure regulating mode, and for wireless charging power It for the charging equipment of the Android system of 10W or more, is lost to reduce and avoids generating heat, it usually needs use frequency conversion tune Duty ratio mode carries out wireless charging.
Since traditional wireless charger usually only supports a kind of wireless charging mode, such as constant frequency pressure regulating or frequency conversion tune to account for One of sky ratio wireless charging mode, causes ios device and wireless charging power that can not make for the Android device of 10W or more With the same wireless charger, traditional wireless charger compatibility is low, poor user experience.
Utility model content
In view of this, originally practical newly provide a kind of wireless charger, IOS system and Android system can be supported simultaneously Charging equipment carry out fast charge, compatibility is high, and the user experience is improved.
The utility model provides a kind of wireless charger, comprising: recognition unit, control unit determine frequency charging circuit, frequency conversion Charging circuit, charging interface and transmitting coil;The recognition unit is electrically connected with the transmitting coil and described control unit respectively It connects, and for receiving the inspection that the transmitting coil detects the charging equipment being placed on the wireless charger Signal is surveyed, to be identified to obtain identification signal to the detection signal, and the identification signal is transmitted to the control list Member;Described control unit also determines frequency charging circuit and the frequency conversion charging circuit is electrically connected with described respectively, and for according to connecing The identification signal received obtains control signal, and the control signal is transmitted to and described determines frequency charging circuit or the change Frequency charging circuit;It is described to determine frequency charging circuit, it is also electrically connected respectively with the charging interface and the transmitting coil, for connecing When receiving the control signal, frequency charging voltage is determined to determine frequency mode to transmitting coil transmission;Alternatively, the frequency conversion charging Circuit is also electrically connected with the charging interface and the transmitting coil respectively, for when receiving the control signal, to become Frequency mode transmits frequency conversion charging voltage to the transmitting coil;The charging interface, for receiving externally input supply voltage, And the supply voltage is transmitted to and described determines frequency charging circuit or the frequency conversion charging circuit;The transmitting coil is used for Receive it is described determine fixed frequency is carried out to the charging equipment when determining frequency charging voltage charging for frequency charging circuit transmission, be also used to Frequency conversion charging is carried out to the charging equipment when receiving the frequency conversion charging voltage of the frequency conversion charging circuit transmission.
Specifically, when the system that the recognition unit is identified to obtain the charging equipment to the detection signal is When IOS system, then the recognition unit determines frequency identification signal to described control unit transmission;Described control unit is according to described fixed Frequency identification signal obtains fixed-frequency control signal, and by the fixed-frequency control signal be transmitted to it is described determine frequency charging circuit so that institute It states and determines frequency charging circuit and carry out work and provide determine frequency charging voltage, and by the transmitting coil to charging equipment progress Fixed frequency charges.
Specifically, when the system that the recognition unit is identified to obtain the charging equipment to the detection signal is Android system, and when the charging equipment wireless fast charge agreement of support, then the recognition unit is transmitted to described control unit Frequency conversion identification signal, wherein the wireless fast charge agreement is that charge power is greater than or equal to 10W;
Described control unit obtains frequency change control signal according to the frequency conversion identification signal, and by the frequency change control signal It is transmitted to the frequency conversion charging circuit, so that the frequency conversion charging circuit carries out work and provides frequency conversion charging voltage, and passes through institute It states transmitting coil and frequency conversion charging is carried out to the charging equipment.
Specifically, the recognition unit is square wave detection circuit or self-adapting estimation chip.
Specifically, the wireless charger further includes switching circuit, and the input terminal of the switching circuit is filled with described respectively Electrical interface and described control unit electrical connection, the output end of the switching circuit determine frequency charging circuit and the change with described respectively The electrical connection of frequency charging circuit.
It is specifically, described that determine frequency charging circuit include the first reduction voltage circuit, the first PD control device, the first inverter circuit and the One wireless transmission controller;First reduction voltage circuit and first inverter circuit are electrically connected with the charging interface, institute It states the first reduction voltage circuit to be also electrically connected with first wireless transmission controller and the first PD control device respectively, described first PD control device is also electrically connected with first wireless transmission controller and the charging interface respectively, the first wireless transmission control Device processed is electrically connected with first inverter circuit, and first inverter circuit is also electrically connected with the transmitting coil.
Specifically, the frequency conversion charging circuit includes the second reduction voltage circuit, the second PD control device, the second inverter circuit, the Two wireless transmission controllers adjust circuit and deaccentuator;Second reduction voltage circuit, the adjusting circuit and described Two PD control devices are electrically connected with the charging interface, and second reduction voltage circuit is also controlled with second wireless transmission respectively Device and second inverter circuit electrical connection, second inverter circuit also respectively with second wireless transmission controller and institute State transmitting coil electrical connection, the adjusting circuit also respectively with second wireless transmission controller and the second PD control device Electrical connection, the second PD control device are also electrically connected with second wireless transmission controller, the deaccentuator difference It is electrically connected with second wireless transmission controller and the transmitting coil.
Specifically, the wireless charger further includes booster circuit, the input terminal of the booster circuit and the charging Mouthful electrical connection, the output end of the booster circuit determine frequency charging circuit and the frequency conversion charging circuit is electrically connected with described respectively.
Specifically, the wireless charger further includes current/voltage detection circuit, the current/voltage detection circuit point Not with the transmitting coil, described determine frequency charging circuit and the frequency conversion charging circuit is electrically connected.
Specifically, the wireless charger further includes communicating circuit, the communicating circuit respectively with the transmitting coil, institute It states and determines frequency charging circuit and frequency conversion charging circuit electrical connection.
Wireless charger provided by the utility model is electrically connected with transmitting coil and control unit respectively by recognition unit It connects, and for being identified to obtain identification signal to the charging equipment being placed on wireless charger, control unit is also distinguished With determine frequency charging circuit and frequency conversion charging circuit is electrically connected, and for obtaining control signal according to identification signal, and will control letter It number is transmitted to and to determine frequency charging circuit or frequency conversion charging circuit, determine frequency charging circuit and be also electrically connected respectively with charging interface and transmitting coil It connects, determines frequency charging voltage or frequency conversion charging electricity to transmitting coil transmission for determining frequency mode when receiving control signal Road is also electrically connected with charging interface and transmitting coil respectively, for when receiving control signal with variable mode to transmitting coil Transmission frequency conversion charging voltage carries out fixed frequency charging or frequency conversion charging to charging equipment to realize, so as to support IOS simultaneously The charging equipment of system and Android system carries out fast charge, and compatibility is high, and the user experience is improved.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model It can be more clearly understood with advantage, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the structural block diagram of the wireless charger of the utility model first embodiment;
Fig. 2 is the structural block diagram of the wireless charger of the utility model second embodiment;
Fig. 3 is the structural block diagram for determining frequency charging circuit in wireless charger;
Fig. 4 is the structural block diagram of the frequency conversion charging circuit in wireless charger;
Fig. 5 is the structural block diagram of the wireless charger of the utility model 3rd embodiment;
Fig. 6 is the electrical block diagram of the recognition unit in wireless charger.
Specific embodiment
The embodiments of the present invention are described below in detail, the example of embodiment is shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar component or component with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the utility model, and should not be understood as the limit to the utility model System.
Fig. 1 is the structural block diagram of the wireless charger 10 of the utility model first embodiment.As shown in Figure 1, wireless charging Device 10 includes recognition unit 11, control unit 12, determines frequency charging circuit 13, frequency conversion charging circuit 14, charging interface 15 and transmitting Coil 16.Specifically, in the present embodiment, recognition unit 11 is electrically connected with transmitting coil 16 and control unit 12 respectively, control Unit 12 also respectively with determine frequency charging circuit 13 and frequency conversion charging circuit 14 is electrically connected, determine frequency charging circuit 13 also respectively with charging Interface 15 and transmitting coil 16 are electrically connected, and frequency conversion charging circuit 14 is also electrically connected with charging interface 15 and transmitting coil 16 respectively.
Specifically, in one embodiment, the input terminal of recognition unit 11 is electrically connected with the output end of transmitting coil 16, is known The output end of other unit 11 is electrically connected with the input terminal of control unit 12.The output end of control unit 12 respectively with determine frequency charging electricity The input terminal electrical connection of the input terminal and frequency conversion charging circuit 14 on road 13.Determine the input terminal of frequency charging circuit 13 also with charging interface 15 electrical connections, the output end for determining frequency charging circuit 13 are electrically connected with the input terminal of transmitting coil 16.Frequency conversion charging circuit 14 it is defeated Enter end to be also electrically connected with charging interface 15, the output end of frequency conversion charging circuit 14 is electrically connected with the input terminal of transmitting coil 16.
Specifically, in one embodiment, recognition unit 11 is for receiving transmitting coil 16 to being placed on wireless charger 10 On charging equipment (not shown go out) detected to obtain detection signal, to be identified to obtain identification letter to detection signal Number, and identification signal is transmitted to control unit 12.
Specifically, in one embodiment, charging equipment can be, but not limited to the mobile phone for IOS system, tablet computer And other intelligent terminals, such as charging equipment can also be mobile phone, tablet computer and other intelligent terminals of Android system.
Specifically, in one embodiment, when charging equipment is placed on wireless charger by user, wireless charger Transmitting coil 16 in 10 detects charging equipment, and the detection signal that will test is transmitted to recognition unit 11.Specifically, know Other unit 11 receives the detection signal that transmitting coil 16 transmits, and carries out identifying processing to detection signal and obtain corresponding identification letter Number, such as whether the system for identifying charging equipment is IOS system, or be Android system and support wireless fast charge agreement Etc..Identification signal is transmitted to control unit 12 by recognition unit 11, to control the operating mode of wireless charger 10, such as is controlled Wireless charger 10 processed is being determined to switch between frequency operating mode and variable frequency work pattern, can meet not homologous ray simultaneously Charging equipment charge requirement, promote the experience of user.
Specifically, in one embodiment, control unit 12 is used to obtain control signal according to the identification signal received, and Control signal is transmitted to and determines frequency charging circuit 13 or frequency conversion charging circuit 14.
Specifically, in one embodiment, control unit 12 is handled to obtain corresponding control to identification signal is received Signal processed, such as when identification signal is to determine frequency identification signal, control unit 12 will generate fixed-frequency control signal, and fixed frequency is controlled Signal processed, which is transmitted to, determines frequency charging circuit 13, or control unit 12 will generate frequency conversion when identification signal is frequency conversion identification signal Signal is controlled, and frequency change control signal is transmitted to frequency conversion charging circuit 14.
Specifically, in one embodiment, determine frequency charging circuit 13 for receive control signal when, with determine frequency mode to Frequency charging voltage is determined in the transmission of transmitting coil 16.
Specifically, in one embodiment, frequency conversion charging circuit 14 be used for receive control signal when, with variable mode to Transmitting coil 16 transmits frequency conversion charging voltage.
Specifically, in one embodiment, charging interface 15 is for receiving externally input supply voltage, and by supply voltage It is transmitted to and determines frequency charging circuit 13 or frequency conversion charging circuit 14.
Specifically, in one embodiment, transmitting coil 16 be also used to receive determine frequency charging circuit 13 transmission determine frequency It carries out fixed frequency to charging equipment when charging voltage to charge, alternatively, in the frequency conversion charging for receiving the transmission of frequency conversion charging circuit 14 It charges when voltage between frequency conversion charging equipment.
Specifically, in one embodiment, when 11 pairs of detection signals of recognition unit are identified to obtain charging equipment When system is IOS system, then frequency identification signal is determined in the generation of recognition unit 11, and determines frequency identification signal to the transmission of control unit 12. Specifically, control unit 12 obtains fixed-frequency control signal according to frequency identification signal is determined, and fixed-frequency control signal is transmitted to and determines frequency Charging circuit 13 determines frequency charging voltage so as to determine frequency charging circuit 13 and carry out work offer, and is treated and filled by transmitting coil 16 Electric equipment carries out fixed frequency and charges.Specifically, determine frequency charging circuit 13 to carry out the supply voltage that charging interface 15 transmits to determine frequency modulation It obtains determining frequency charging voltage after pressure processing, and frequency charging voltage will be determined and be transmitted to transmitting coil 16, to be carried out to charging equipment Fixed frequency charges.
Specifically, in one embodiment, when 11 pairs of detection signals of recognition unit are identified to obtain charging equipment When system is not IOS system, then recognition unit 11 generates frequency conversion identification signal, and transmits frequency conversion identification letter to control unit 12 Number.Specifically, control unit 12 obtains frequency change control signal according to frequency conversion identification signal, and frequency change control signal is transmitted to change Frequency charging circuit 14 so that frequency conversion charging circuit 14 carries out work and provides frequency conversion charging voltage, and is treated by transmitting coil 16 Charging equipment carries out frequency conversion charging.Specifically, the supply voltage that frequency conversion charging circuit 14 transmits charging interface 15 carries out frequency conversion Frequency conversion charging voltage is obtained after adjusting duty ratio processing, and frequency conversion charging voltage is transmitted to transmitting coil 16, to be set to be charged It is standby to carry out frequency conversion charging.
Specifically, in one embodiment, recognition unit 11 can be, but not limited to as square wave detection circuit or adaptive knowledge Other chip.Specifically, the model of self-adapting estimation chip can be, but not limited to as EDP3034.
It is the electrical block diagram of the recognition unit 11 in wireless charger 10 please also refer to Fig. 6, Fig. 6.As Fig. 1 with Shown in Fig. 6, when recognition unit 11 provided in this embodiment is square wave detection circuit, square wave detection circuit includes first switch member Part Q1, second switch element Q2, third switch element Q3, the 4th switch element Q4, first resistor R1, second resistance R2, third Resistance R3, the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6.Specifically, in one embodiment, first switching element Q1 First end connect with the end Vout in charging interface 15, with receive charging interface 15 output after treatment electric current letter Number, specifically, in one embodiment, the voltage of the current signal of the end Vout output can be, but not limited to for 2.5V, such as at it In his embodiment, the voltage of the current signal of the end Vout output may be arranged as the voltage value more higher or lower than 2.5V. The second end of first switching element Q1 is respectively connected to the second end of second switch element Q2 and the first end of first resistor R1.The The control terminal of one switch element Q1 is respectively connected to the control terminal and PULL of the second end of first resistor R1, second switch element Q2 End.The first end of second switch element Q2 is connected to the first end of second resistance R2.The second end of second resistance R2 is separately connected To the first end at the end CC and 3rd resistor R3.The second end of 3rd resistor R3 is connect with the first end of third switch element Q3.The The second end of three switch element Q3 is grounded, the control terminal of third switch element Q3 be respectively connected to the first end of the 4th resistance R4 with The first end of 5th resistance R5.The second end of 5th resistance R5 is connected to the end DOWN.The second end of 4th resistance R4 is separately connected First end and the end CC to the 6th resistance R6.The second end of 6th resistance R6 is connect with the control terminal of the 4th switch element Q4.The The first end of four switch element Q4 is grounded, and the second end of the 4th switch element Q4 is connect with the end INT.
Specifically, in one embodiment, first switching element Q1 and second switch element Q2 can be, but not limited to be P ditch Road enhancement mode field effect transistor, for example, the model of first switching element Q1 and second switch element Q2 can be, but not limited to For RCR1542SI, wherein the first end of first switching element Q1 is drain electrode, and the second end of first switching element Q1 is source electrode, the The control terminal of one switch element Q1 is grid, and the first end of second switch element Q2 is to drain, the second of second switch element Q2 End is source electrode, and the control terminal of third switch element Q3 is grid.Third switch element Q3 and the 4th switch element Q4 can with but not Be limited to be N-channel field effect transistor, for example, the model of second switch element Q2 and third switch element Q3 can with but it is unlimited In being RCR1515SI, wherein the first end of third switch element Q3 is drain electrode, and the second end of third switch element Q3 is source Pole, the control terminal of third switch element Q3 are grid, and the first end of the 4th switch element Q4 is drain electrode, the 4th switch element Q4's Second end is source electrode, and the control terminal of the 4th switch element Q4 is grid.
Specifically, in one embodiment, when 11 pairs of detection signals of recognition unit are identified to obtain charging equipment System is Android system, and when the charging equipment wireless fast charge agreement of support, then recognition unit 11 generates frequency conversion identification signal, and Frequency conversion identification signal is transmitted to control unit 12.Specifically, control unit 12 obtains frequency control letter according to frequency conversion identification signal Number, and frequency change control signal is transmitted to frequency conversion charging circuit 14, so that frequency conversion charging circuit 14 carries out work offer frequency conversion and fills Piezoelectric voltage, and frequency conversion charging is carried out to charging equipment by transmitting coil 16.Specifically, frequency conversion charging circuit 14 is by charging The supply voltages of 15 transmission of mouth obtain frequency conversion charging voltage after carrying out the processing of frequency conversion tune duty ratios, and frequency conversion charging voltage is transmitted To transmitting coil 16, to carry out frequency conversion charging to charging equipment.
Specifically, in one embodiment, wireless fast charge agreement is that charge power is greater than or equal to 10W
Specifically, in one embodiment, when 11 pairs of detection signals of recognition unit are identified to obtain charging equipment When system is not that Android system and/or charging equipment do not support wireless fast charge agreement, then recognition unit 11 generates fixed frequency and identifies Signal, and frequency identification signal is determined to the transmission of control unit 12.Specifically, control unit 12 obtains fixed frequency according to frequency identification signal is determined Signal is controlled, and fixed-frequency control signal is transmitted to and determines frequency charging circuit 13, so that determining frequency charging circuit 13 carries out work offer Determine frequency charging voltage, and fixed frequency is carried out to charging equipment by transmitting coil 16 and is charged.Specifically, determining frequency charging circuit 13 will Charging interface 15 transmit supply voltage carry out constant frequency pressure regulating processing after obtain determine frequency charging voltage, and will determine frequency charging voltage biography Transmitting coil 16 is transported to, is charged with carrying out fixed frequency to charging equipment.
Specifically, in one embodiment, recognition unit 11 is self-adapting estimation chip, wherein self-adapting estimation chip Model can be, but not limited to as EDP3034.
Fig. 2 is the structural block diagram of the wireless charger 10 of the utility model second embodiment.As shown in Figure 1 to Figure 2, this reality The difference for applying the wireless charger 10 that the wireless charger 10 that example provides is provided with first embodiment is that wireless charger 10 is also Including switching circuit 17.Specifically, in one embodiment, the input terminal of switching circuit 17 is single with charging interface 15 and control respectively Member 12 is electrically connected, the output end of switching circuit 17 respectively with determine frequency charging circuit 13 and frequency conversion charging circuit 14 is electrically connected.
Specifically, in one embodiment, when control unit 12 transmits fixed-frequency control signal to switching circuit 17, switching Circuit 17 will be connected charging interface 15 according to fixed-frequency control signal and determine the access between frequency charging circuit 13, and charge closing connects Access between mouth 15 and frequency conversion charging circuit 14 is realized so that the operating mode of wireless charger 10 is to determine frequency operating mode Frequency charging is determined to charging equipment.When control unit 12 transmits frequency change control signal to switching circuit 17, switching circuit 17 The access between charging interface 15 and frequency conversion charging circuit 14 will be connected according to frequency change control signal, and charge closing interface 15 with Determine the access between frequency charging circuit 13, so that the operating mode of wireless charger 10 is variable frequency work pattern, realization, which is treated, fills The frequency conversion of electric equipment is charged.
Fig. 3 is the structural block diagram for determining frequency charging circuit 13 in wireless charger 10.As shown in Figure 1 to Figure 3, specifically, In the present embodiment, determining frequency charging circuit 13 includes the first reduction voltage circuit 131, the first PD control device 132, the first inverter circuit 133 and first wireless transmission controller 134.
Specifically, in one embodiment, the first reduction voltage circuit 131 and the first inverter circuit 133 are electrically connected with charging interface It connects.First reduction voltage circuit 131 is also electrically connected with the first wireless transmission controller 134 and the first PD control device 132 respectively.First PD Controller 132 is also electrically connected with the first wireless transmission controller 134 and charging interface respectively.First wireless transmission controller 134 It is electrically connected with the first inverter circuit 133.First inverter circuit 133 is also electrically connected with transmitting coil.
Specifically, in one embodiment, the input terminal of the first reduction voltage circuit 131 can be, but not limited to and charging interface electricity Connection, the output end of the first reduction voltage circuit 131 are electrically connected with the first wireless transmission controller 134 and the first PD control device 132 respectively It connects.
Specifically, in one embodiment, the input terminal of the first inverter circuit 133 can be, but not limited to charging interface and The output end of first wireless transmission controller 134 is electrically connected, and the output end of the first inverter circuit 133 is electrically connected with transmitting coil.
Specifically, in one embodiment, the input terminal of the first PD control device 132 also with the first wireless transmission controller 134 output end electrical connection, the output end of the first PD control device 132 are electrically connected with charging interface.
Specifically, in one embodiment, the input/output terminal of the first wireless transmission controller 134 and transmitting coil electricity Connection.
Fig. 4 is the structural block diagram of the frequency conversion charging circuit 14 in wireless charger 10.As shown in Figures 1 to 4, specifically, In the present embodiment, frequency conversion charging circuit 14 includes the second reduction voltage circuit 141, the second PD control device 142, the second inverter circuit 143, the second wireless transmission controller 145, adjusting circuit 144 and deaccentuator 146.
Specifically, in one embodiment, the second reduction voltage circuit 141, adjust circuit 144 and the second PD control device with charging Interface electrical connection.Second reduction voltage circuit 141 is also electrically connected with the second wireless transmission controller 145 and the second inverter circuit 143 respectively It connects.Second inverter circuit 143 is also electrically connected with the second wireless transmission controller 145 and transmitting coil respectively.Adjust circuit 144 also It is electrically connected respectively with the second wireless transmission controller 145 and the second PD control device.Second PD control device is also wirelessly transferred with second Controller 145 is electrically connected.Deaccentuator 146 is electrically connected with the second wireless transmission controller 145 and transmitting coil respectively.
Specifically, in one embodiment, the input terminal of the second reduction voltage circuit 141 can be, but not limited to charging interface and The output end of second wireless transmission controller 145 is electrically connected, the output end of the second reduction voltage circuit 141 and the second inverter circuit 143 Input terminal electrical connection.
Specifically, in one embodiment, the input terminal of the second inverter circuit 143 also with the second wireless transmission controller 145 output end electrical connection, the output end of the second inverter circuit 143 are electrically connected with the input terminal of transmitting coil.
Specifically, in one embodiment, the input terminal for adjusting circuit 144 can be, but not limited to be electrically connected with charging interface It connects, adjusts the output end input with the input terminal of the second wireless transmission controller 145 and the second PD control device respectively of circuit 144 End electrical connection.
Specifically, in one embodiment, the input terminal of the second PD control device also with the second wireless transmission controller 145 Output end electrical connection, the output end of the second PD control device are electrically connected with charging interface.
Specifically, in one embodiment, the first input/output terminal of deaccentuator 146 is electrically connected with transmitting coil It connects, the second input/output terminal of deaccentuator 146 and the input/output terminal of the second wireless transmission controller 145 are electrically connected It connects.
It is the structural block diagram of the wireless charger 10 of the utility model 3rd embodiment please also refer to Fig. 5, Fig. 5.Such as Fig. 1 To shown in Fig. 5, further, wireless charger 10 provided in this embodiment further includes booster circuit 18, current/voltage detection electricity Road 19 and communicating circuit 20.
Specifically, in one embodiment, the input terminal of booster circuit 18 is electrically connected with charging interface, booster circuit 18 it is defeated Outlet respectively with determine frequency charging circuit 13 and frequency conversion charging circuit 14 is electrically connected.Specifically, in one embodiment, booster circuit 18 output end is respectively electrically connected to the input terminal of the first reduction voltage circuit 131, the input terminal of the first inverter circuit 133, the second drop The input terminal of volt circuit 141 and the input terminal for adjusting circuit 144.
Specifically, in one embodiment, current/voltage detection circuit 19 respectively with transmitting coil, determine frequency charging circuit 13 And frequency conversion charging circuit 14 is electrically connected.
Specifically, in one embodiment, the current detecting end of current/voltage detection circuit 19 and frequency conversion charging circuit 14 Output end and determine frequency charging circuit 13 output end electrical connection, the voltage detection terminal and transmitting of current/voltage detection circuit 19 The output end connection of coil 16, the output end of current/voltage detection circuit 19 and the first wireless transmission controller 134 and the second nothing The electrical connection connection of line transmission control unit (TCU) 145.Specifically, current/voltage detection circuit 19 is used for according to current detection value and voltage Detected value handles to obtain frequency conversion tune duty ratio, and by frequency conversion tune duty cycle transmissions to the first wireless transmission controller 134 or the second Wireless transmission controller 145.
Specifically, in one embodiment, communicating circuit 20 respectively with transmitting coil, determine frequency charging circuit 13 and frequency conversion and charge Circuit 14 is electrically connected.
Specifically, in one embodiment, wireless charger 10 provided in this embodiment further includes wireless charging receiving terminal (not shown go out).
Specifically, in the present embodiment, charging interface 15 is used to connect external charger (not shown go out).In a reality It applies in mode, charger includes that can convert external communication voltage to the rectification circuit (not shown go out) of DC voltage and by direct current Another aerial lug of power voltage supply.Preferably, rectification circuit can be full bridge rectifier, external communication voltage for example may be used Think 220V mains AC, aerial lug can be USB Type C socket connector, be input to the straight of aerial lug Galvanic electricity pressure can be the such as less than DC voltage of 20V after being depressured to the DC voltage of rectification circuit output.Charger The different grades of fast charge voltage protocol such as it can be fast charge agreement charger, such as 5V, 9V, 14.5V and 20V can be exported.This Fast charge voltage protocol in embodiment can be high pass QC2.0/3.0 voltage protocol, USB power transmission (Power Delivery, PD) 2.0/3.0 voltage protocol or other fast charge voltage protocols.Charger is also possible to common charger, and output such as 5V's is general Logical charging voltage.
In one implementation, charging interface can be Lightning charging interface, and aerial lug can be USB Type C socket connector, charging interface can be connect via crossover sub with aerial lug.It is appreciated that the utility model and unlimited In this, above-mentioned charging interface be also possible to can mutually matched other kinds of charging interface, alternatively, can also not need to convert Connector makes charging interface directly be cooperatively connected with aerial lug.
Specifically, in the present embodiment, wireless charging receiving terminal includes wireless charging receiving coil (not shown go out), rectification And voltage regulator circuit 144 (not shown go out).
Specifically, 16 electromagnetism of transmitting coil of the wireless charging receiving coil Yu wireless charger 10 of wireless charging receiving terminal Coupling, to receive the wireless charging signal that the transmitting coil 16 of wireless charger 10 emits, induction produces an alternating voltage.It is whole Stream and voltage regulator circuit 144 may include bridge rectifier, can be by the wireless charging receiving coil of wireless charging receiving terminal The alternating voltage of generation is converted to DC voltage.Preferably, rectification and voltage regulator circuit 144 may also include voltage regulator circuit 144 and filter circuit, to produce the DC voltage of stable particular size from the DC voltage converted out.Rectification and voltage tune The DC voltage that economize on electricity road 144 exports can be used as power supply and charge to charging equipment.
Charging equipment can be preferably mobile terminal, such as mobile phone, tablet computer etc..In a preferred embodiments, Charging equipment be IOS system mobile phone, tablet computer or other intelligent terminals or charging equipment be Android system hand Machine, tablet computer or other intelligent terminals.Specifically, in one embodiment, wireless charging receiving terminal can set charging interface, compared with Good is Lightning male seat connector, and the Lightning that Lightning male seat connector can be inserted into apple intelligent terminal is female Seat charging interface charges to intelligent terminal.It is appreciated that the charging interface of wireless charging receiving terminal is also possible to other classes The charging interface of type.
In preferably realizing at one, wireless charging receiving terminal can be equipped with rechargeable battery.Wireless charging receiving coil connects When receiving wireless charging signal, while charging to charging equipment, it can also power to rechargeable battery.If wireless charging connects Take-up circle does not receive wireless charging signal, then can be charged by rechargeable battery to charging equipment.
In preferably realizing at one, wireless charging receiving terminal is arranged to the back that can be attached in the rear shell of mobile terminal Press from both sides battery type charger.
In addition, wireless charging receiving terminal may alternatively be integrated within inside charging equipment.
It is appreciated that wireless charger 10 further includes communications portion, for according to respective protocol and external charger and to Charging equipment is communicated.
Specifically, wireless charger provided by the embodiment of the utility model, by recognition unit respectively with transmitting coil and Control unit electrical connection, and for being identified to obtain identification signal to the charging equipment being placed on wireless charger, it controls Unit processed also respectively with determine frequency charging circuit and frequency conversion charging circuit is electrically connected, and for obtaining control letter according to identification signal Number, and control signal is transmitted to and determines frequency charging circuit or frequency conversion charging circuit, determine frequency charging circuit also respectively with charging interface And transmitting coil electrical connection, frequency charging voltage is determined to transmitting coil transmission for determining frequency mode when receiving control signal, Or frequency conversion charging circuit is also electrically connected with charging interface and transmitting coil respectively, for receive control signal when with frequency conversion Mode transmits frequency conversion charging voltage to transmitting coil, carries out fixed frequency charging to charging equipment with realization or frequency conversion is charged, thus The charging equipment of IOS system and Android system can be supported to carry out fast charge simultaneously, compatibility is high, and the user experience is improved.
In the description of this specification, reference term " embodiment ", " some embodiments ", " an implementation The description of example ", " some embodiments ", " example ", " specific example " or " some examples " etc. means to combine the embodiment or example Particular features, structures, materials, or characteristics described are contained at least one embodiment or example of the utility model.At this In specification, schematic expression of the above terms be may not refer to the same embodiment or example.Moreover, description is specific Feature, structure, material or feature can be combined in any suitable manner in any one or more of the embodiments or examples.
The above content is combine specific embodiment further detailed description of the utility model, and it cannot be said that The specific implementation of the utility model is only limited to these instructions.For the utility model person of an ordinary skill in the technical field For, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made.

Claims (10)

1. a kind of wireless charger, which is characterized in that the wireless charger includes: recognition unit, control unit, fixed frequency charging Circuit, frequency conversion charging circuit, charging interface and transmitting coil;
The recognition unit is electrically connected with the transmitting coil and described control unit respectively, and for receiving the emission lines The detection signal detected to the charging equipment being placed on the wireless charger is enclosed, to the detection signal It is identified to obtain identification signal, and the identification signal is transmitted to described control unit;
Described control unit also determines frequency charging circuit and the frequency conversion charging circuit is electrically connected with described respectively, and is used for basis The identification signal received obtains control signal, and the control signal is transmitted to and described determines frequency charging circuit or described Frequency conversion charging circuit;
It is described to determine frequency charging circuit, it is also electrically connected respectively with the charging interface and the transmitting coil, for receiving When stating control signal, frequency charging voltage is determined to determine frequency mode to transmitting coil transmission;Alternatively,
The frequency conversion charging circuit, is also electrically connected, for receiving respectively with the charging interface and the transmitting coil When stating control signal, frequency conversion charging voltage is transmitted to the transmitting coil with variable mode;
The charging interface is transmitted to described fixed fill frequently for receiving externally input supply voltage, and by the supply voltage Circuit or the frequency conversion charging circuit;
The transmitting coil, for receive it is described determine frequency charging circuit transmission when determining frequency charging voltage to described to be charged Equipment carries out fixed frequency and charges, and is also used to when receiving the frequency conversion charging voltage of the frequency conversion charging circuit transmission to described wait fill Electric equipment carries out frequency conversion charging.
2. wireless charger as described in claim 1, which is characterized in that when the recognition unit carries out the detection signal When the system that identification obtains the charging equipment is IOS system, then the recognition unit transmits fixed frequency to described control unit Identification signal;
Described control unit determines frequency identification signal and obtains fixed-frequency control signal according to described, and the fixed-frequency control signal is transmitted Determine frequency charging circuit to described, determine frequency charging circuit work offer is provided to determine frequency charging voltage so that described, and pass through the hair Ray circle carries out fixed frequency to the charging equipment and charges.
3. wireless charger as described in claim 1, which is characterized in that when the recognition unit carries out the detection signal The system that identification obtains the charging equipment is Android system, and when the charging equipment wireless fast charge agreement of support, then The recognition unit transmits frequency conversion identification signal to described control unit, wherein the wireless fast charge agreement is that charge power is big In or equal to 10W;
Described control unit obtains frequency change control signal according to the frequency conversion identification signal, and the frequency change control signal is transmitted To the frequency conversion charging circuit, so that the frequency conversion charging circuit carries out work and provides frequency conversion charging voltage, and pass through the hair Ray circle carries out frequency conversion charging to the charging equipment.
4. wireless charger as claimed in claim 2 or claim 3, which is characterized in that the recognition unit be square wave detection circuit or Self-adapting estimation chip.
5. wireless charger as described in claim 1, which is characterized in that the wireless charger further includes switching circuit, institute The input terminal for stating switching circuit is electrically connected with the charging interface and described control unit respectively, the output end of the switching circuit Frequency charging circuit is determined and the frequency conversion charging circuit is electrically connected with described respectively.
6. wireless charger as described in claim 1, which is characterized in that it is described determine frequency charging circuit include first decompression electricity Road, the first PD control device, the first inverter circuit and the first wireless transmission controller;First reduction voltage circuit and described first inverse Charging interface described in power transformation Lu Junyu electrical connection, first reduction voltage circuit also respectively with first wireless transmission controller and First PD control device electrical connection, the first PD control device also respectively with first wireless transmission controller and described fill Electrical interface electrical connection, first wireless transmission controller are electrically connected with first inverter circuit and the transmitting coil respectively It connects, first inverter circuit is also electrically connected with the transmitting coil.
7. wireless charger as described in claim 1, which is characterized in that the frequency conversion charging circuit includes the second decompression electricity Road, the second inverter circuit, the second wireless transmission controller, adjusts circuit and deaccentuator at the second PD control device;Described Two reduction voltage circuits, the adjusting circuit and the second PD control device are electrically connected with the charging interface, second decompression Circuit is also electrically connected with second wireless transmission controller and second inverter circuit respectively, and second inverter circuit is also It is electrically connected respectively with second wireless transmission controller and the transmitting coil, the adjusting circuit is also respectively with described second Wireless transmission controller and the second PD control device electrical connection, the second PD control device are also controlled with second wireless transmission Device electrical connection processed, the deaccentuator are electrically connected with second wireless transmission controller and the transmitting coil respectively.
8. wireless charger as claimed in claims 6 or 7, which is characterized in that the wireless charger further includes booster circuit, The input terminal of the booster circuit is electrically connected with the charging interface, and the output end of the booster circuit is determined to fill frequently with described respectively Circuit and frequency conversion charging circuit electrical connection.
9. wireless charger as claimed in claim 8, which is characterized in that the wireless charger further includes current/voltage inspection Slowdown monitoring circuit, the current/voltage detection circuit respectively with the transmitting coil, described determine frequency charging circuit and the frequency conversion and charge Circuit electrical connection.
10. wireless charger as claimed in claim 9, which is characterized in that the wireless charger further includes communicating circuit, institute State communicating circuit respectively with the transmitting coil, described determine frequency charging circuit and the frequency conversion charging circuit is electrically connected.
CN201821968204.4U 2018-11-27 2018-11-27 Wireless charger Active CN209217749U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023213316A1 (en) * 2022-05-06 2023-11-09 长春捷翼汽车科技股份有限公司 Wireless charging apparatus, and vehicle having wireless charging apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023213316A1 (en) * 2022-05-06 2023-11-09 长春捷翼汽车科技股份有限公司 Wireless charging apparatus, and vehicle having wireless charging apparatus

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