CN105811511B - A kind of mobile wireless charger baby circuit and charging method - Google Patents
A kind of mobile wireless charger baby circuit and charging method Download PDFInfo
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- CN105811511B CN105811511B CN201610271754.XA CN201610271754A CN105811511B CN 105811511 B CN105811511 B CN 105811511B CN 201610271754 A CN201610271754 A CN 201610271754A CN 105811511 B CN105811511 B CN 105811511B
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- 238000007600 charging Methods 0.000 title claims abstract description 120
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 32
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
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- 238000007726 management method Methods 0.000 description 43
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Classifications
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- H02J7/025—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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Abstract
The present invention relates to a kind of mobile wireless charger baby circuit and charging methods, are used for charging of mobile devices.Wireless charging receiving sheet is attached by mobile phone USB interface and mobile phone, wireless charging receiving sheet posts on charger baby shell, when in inductance CL1, inductance CL2, when passing through alternating current in inductance CL3 coils, the magnetic line of force of time to time change will be showed around it, the magnetic line of force of variation will produce induced potential at coil both ends, this induced potential is equivalent to a new power, when the coil of receiving device is within the scope of the magnetic line of force that this is changed over time, induced potential will be generated by electromagnetic induction at coil both ends, generate electric current, by the blank film of mobile phone or using wireless charging receiving sheet power supply is provided to mobile phone.Plug charging plug that need not be repeatedly when use avoids charger because of plug frequently generation the case where damage.The safe and convenient when present invention uses, has the function of that wireless charging and wired charging flexibly use.
Description
Technical field
The present invention relates to a kind of mobile wireless charger baby circuit and charging methods, are used for charging of mobile devices.
Background technology
Present mobile charging device（Charger baby）Can be directly to charging of mobile devices, and itself has charge storage unit
Device.The main category multifunctionality charger baby of existing market is equipped with the USB outputs of standard substantially, basic to meet at present
The common mobile device in market, such as a variety of digital products of mobile phone, MP3, MP4, PDA, PSP, bluetooth headset, digital camera fill
Electricity.In daily life, work, leisure, the power consumption of smart mobile phone is relatively large, needs to supplement electric power at any time, due to tradition
Wired charging pattern in use, need plug charging plug repeatedly, be easy to cause interface damage, cause to fill
Electricity.Modern society possesses two mobile phone personages and gradually increases, and is only the pattern that a mobile phone charges and gradually cannot be satisfied
The actual demand of current user.Taken in charging phone, office online, amusement and recreation have security risk again, therefore, use
Wireless charging becomes the direction of future development.
Invention content
Shape in view of the prior art and existing deficiency the present invention provides a kind of mobile wireless charger baby circuit and are filled
Method for electrically uses wireless charging mode for charging of mobile devices, and has micro USB Electricity Functional.
To achieve the above object, used technical solution is the present invention：A kind of mobile wireless charger baby circuit, including fill
Electric treasured shell, it is characterised in that：Further include the charger baby circuit being arranged in charger baby shell, the charger baby circuit includes moving
Dynamic electric power management circuit, micro controller unit circuit, wireless charging control circuit, wireless transmitting unit circuit, power protection core
Piece U7, battery core, external power supply USB interface J1, wired output port J2, wireless charging receiving sheet, the mobile power management electricity
Road respectively with micro controller unit circuit, wireless charging control circuit, wireless transmitting unit circuit, power protection chip U7, electricity
Core, external power supply USB interface J1, wired output port J2 connections, the micro controller unit circuit respectively with mobile power pipe
Manage circuit, the connection of wireless charging control circuit, wireless charging control circuit connect with wireless transmitting unit circuit, the battery core and
Power protection chip U7 connections, the wireless charging receiving sheet post on charger baby shell, and wireless charging receiving sheet receives nothing
The magnetic line of force signal of line transmitter unit circuit.
A kind of charging method of mobile wireless charger baby circuit, it is characterised in that：Steps are as follows,
Wireless charging receiving sheet is attached by mobile phone USB interface and mobile phone, wireless charging receiving sheet, which posts, to be filled
On electric treasured shell, transmitting coil, that is, inductance CL1, the electricity of the coiler part alignment wireless transmitting unit circuit of wireless charging receiving sheet
Feel CL2, inductance CL3, the two is close, and distance is no more than 6mm；
When passing through DC current in inductance CL1, inductance CL2, inductance CL3, around the fixed magnetic line of force is only presented, no
Change over time, when passing through alternating current in inductance CL1, inductance CL2, inductance CL3 coils, around will show at any time
Between and the magnetic line of force that changes, the magnetic line of force of variation will produce induced potential at coil both ends, this induced potential be equivalent to one it is new
Power supply forms inverter bridge driving circuit by two driving circuit U1, driving circuit U3 in circuit, passes through charge controlling chip U2's
Control makes the inductance CL1 in circuit, inductance CL2, generates the magnetic line of force changed over time around tri- transmitting coils of inductance CL3,
It, will be at coil both ends by electromagnetic induction when the coil of receiving device is within the scope of the magnetic line of force that this is changed over time
Induced potential is generated, electric current is generated, power supply is provided to mobile phone by the blank film of mobile phone or using wireless charging receiving sheet；
Voltage detecting circuit in the circuit of mobile power management simultaneously is constantly detected the voltage in circuit, to mistake
Stream, short circuit, the phenomenon that overcharging, carry out power-off protection, pair also under to battery core charged state, when being exported using wireless charging, ensure
Electric energy equilibrium assignment preferentially ensures in electricity shortage the needs of wireless charging to battery core and output winding, when using battery core
It is preferential to ensure being normally carried out for wireless charging when to wired output and wireless output while powering.
It when only using wired charging, is exported to charging mobile phone battery by wired output port J2, and passes through resistance R74
Detection charging current feeds back to MCU controls chip U5, and MCU controls the variation of chip U5 constantly induction charging voltages, passes through switch
Pipe Q13 controls wired output port J2, and when fully charged, the charging of cut-out wired output port J2 prevents mobile phone electric
Pond overcharges and causes danger.
The beneficial effects of the invention are as follows：The present invention with wireless charging double metal foreign bodies detection protect, i.e., no matter whether there is or not
As long as load Wireless charging coil on have metallic foreign body all can stoppage protection, prevent foreign matter from being heated.
The present invention more optimizes customer experience using single bridge circuit driver three-winding circuit on the basis of saving cost.
Wireless charging receiving sheet is connected to by the present invention to be needed on the battery that charges, when use using electromagnetic induction principle with
The transmitting coil of wireless charger ontology realizes wireless charging close to the i.e. distance of 6mm, plug that when in use need not be repeatedly
Charging plug avoids charger because of plug frequently generation the case where damage.The safe and convenient when present invention uses, has
The function that wireless charging and wired charging flexibly use.
When giving wired output and wireless output using battery core while powering, preferential guarantee wireless charging is normally carried out.
Description of the drawings
Fig. 1 is that the circuit of the present invention connects block diagram；
Fig. 2 is the circuit diagram of wireless charging management module of the present invention；
Fig. 3 is the circuit diagram of mobile power management module of the present invention；
Fig. 4 is the circuit diagram of micro controller unit module of the present invention；
Fig. 5 is the circuit diagram of wireless transmitting unit of the present invention.
Specific implementation mode
As shown in Figures 1 to 5, a kind of mobile wireless charger baby circuit, including charger baby shell further include that setting is being charged
Charger baby circuit in precious shell.
Charger baby circuit includes mobile power management circuit, micro controller unit circuit, wireless charging control circuit, wireless
Transmitter unit circuit, power protection chip U7, battery core, external power supply USB interface J1, wired output port J2, wireless charging connect
It takes up.
Mobile power manage circuit respectively with micro controller unit circuit, wireless charging control circuit, wireless transmitting unit
Circuit, power protection chip U7, battery core, external power supply USB interface J1, wired output port J2 connections, micro controller unit electricity
Road is connect with mobile power management circuit, wireless charging control circuit respectively, wireless charging control circuit and wireless transmitting unit
Circuit connects, and battery core is connect with power protection chip U7, and wireless charging receiving sheet posts on charger baby shell, and wireless charging connects
It takes up and receives the magnetic line of force signal of wireless transmitting unit circuit.
Mobile power partial circuit control flow, first power management chip U6 by detect battery core voltage, to distribute
The electricity pattern of wireless charging and wired charging can guarantee when battery core electricity abundance to wired charging USB port J1 and wired
Output port J2 is powered；Preferentially ensure that wireless charging is normally carried out.
Mobile power management circuit is connected as：Shunt capacitance C27, electricity between 1 needle and 5 needles of external power supply USB port J1
Hold C28,2 needles connect that power supply is negative, and 3 needles are connecing power supply just, 4 needles, 5 needles ground connection, and 1 needle connects 20 feet of power management chip U6,21 feet and defeated
Enter positive polarity VDD5V, 1 foot, 2 feet, 3 feet of power protection chip U7 connect one end and the contact TP7 i.e. battery of capacitance C30 respectively
Cathode, 4 feet of another termination power management chip U7 of capacitance C30 and one end of resistance R62, the other end point of resistance R62
Do not connect capacitance C35, capacitance C36, one end of resistance R60,10 feet of power management chip U6, the contact TP8 i.e. anode of battery and
The anode of light emitting diode D8, light emitting diode D9, light emitting diode D10, the anode of light emitting diode D11 and BAT, that is, battery,
Capacitance C35, capacitance C36 other ends ground connection, the cathode of light emitting diode D8 connect 2 feet of power management chip U6 by resistance R66,
The cathode of light emitting diode D9 connects 1 foot of power management chip U6 by resistance R67, and the cathode of light emitting diode D10 passes through electricity
Resistance R68 connects 24 feet of power management chip U6, and the cathode of light emitting diode D11 connects power management chip U6's by resistance R70
23 feet, 6 feet of power protection chip U7 connect 7 feet, 8 feet and ground of power protection chip U7 by resistance R61, and resistance R60's is another
11 feet of one termination capacitor C46, one end of inductance L1 and power management chip U6, the other end ground connection of capacitance C46, inductance L1's
One end of another termination capacitor C29 and 14 feet of power management chip U6,15 feet, another termination power management core of capacitance C29
22 feet of piece U6, one end of the 4 foot connecting resistance R57 of power management chip U6 and the anode of diode D4, the other end of resistance R57
BAT i.e. anode is connect, the cathode of diode D4 connects one end of switch K1 and the cathode of diode D6, another termination of switch K1
Ground, the 8 feet difference connecting resistance R47 of power management chip U6, one end of resistance R64, resistance R47 other ends ground connection, resistance R64's
The other end is grounded by resistance R63, and 9 feet of power management chip U6 are grounded by capacitance C37, and the 16 of power management chip U6
Foot, 17 feet connect one end of capacitance C39, capacitance C38 respectively, and 18 feet, 19 feet of power management chip U6 are connected to line output terminal respectively
1 needle, resistance R52, one end of resistance R54, capacitance C40, capacitance C41, capacitance C42, one end of capacitance C43 and the power supply DC of mouth J2
One end of the 2 needle connecting resistance R53 of+5V, wired output port J2 and the other end of resistance R54, another terminating resistor of resistance R53
One end and ground of R51, the other end of another terminating resistor R52 of resistance R51 and 3 needles of wired output port J2, wired output
4 needles of port J2 connect the drain electrode of switching tube Q13, resistance R71, resistance R73 one end, the source electrode of switching tube Q13 passes through resistance R74
Ground connection, 7 feet, 12 feet, 13 feet, 25 feet, capacitance C37, capacitance C38, capacitance C39, capacitance C40, the capacitance of power management chip U6
C41, capacitance C42, capacitance C43, resistance R73 the other end be grounded, contact TP9 ground connection；The model of power management chip U6
The model DS7066 of HE43100, power protection chip U7.
Micro controller unit circuit is connected as：MCU control 6 feet of chip U5 respectively with the test point TP3 of detection power supply,
The one end capacitance C32, power supply DC+5V connections, test point TP6, capacitance C31, the capacitance of the capacitance C32 other ends and detection ground connection
The one end C44 and ground connection, 7 feet of another termination MCU controls chip U5 of capacitance C31, another terminating resistor R69 of capacitance C44 mono-
End, 8 feet of MCU control chips U5 and mobile power manage the grid of contactor pipe Q13, another termination power DC+ of resistance R69
5V, MCU control 11 one end foot connecting resistance R72 of chip U5, and 13 feet of MCU control chips U5 connect mobile power management circuit and move
The source electrode of dynamic electric power management circuit switching tube Q13,14 feet of MCU control chips U5 connect capacitance C33, resistance R58 one end and can
Control reference pole and the cathode of precision voltage regulator U8, the anode and ground of another termination controllable accurate source of stable pressure U8 of capacitance C33, resistance
Another termination power DC+5V of R58 simultaneously connects 19 feet and mobile power management circuit two that MCU controls chip U5 by resistance R56
18 feet of the anode of pole pipe D6, MCU control chips U5 connect the other end of mobile power management circuitous resistance R71, and MCU controls core
The 20 foot connecting resistance R55 of piece U5, one end of resistance R76, another termination power DC+5V of resistance R55, MCU control chip U5's
3 feet are grounded, mono- termination power DC+5V of resistance R59, the anode of resistance R59 other end sending and receiving optical diodes D7 and the one of resistance R41
End, the other end ground connection of resistance R41, anode and MCU control the chip U5 of the cathode sending and receiving optical diode D12 of light emitting diode D7
5 feet, the cathode of light emitting diode D12 is grounded by resistance R75, and contact TP5 connects 8 feet of MCU control chips U5, contact TP4,
Contact TP5 is two test test points.MCU controls chip U5 models MB95F564.
Wireless charging management module circuit is connected as：The 1 foot connecting resistance R14 of charge controlling chip U2, the one of resistance R10
End, another 40 feet for meeting one end charge controlling chip U2 of resistance R10 and the 16 of micro controller unit circuit MCU control chips U5
Foot, another terminating resistor R15 of resistance R14, one end of resistance R19, capacitance C14, another termination charge controlling chips of resistance R15
2 feet of U2 and one end of capacitance C11, the other end ground connection of capacitance C11, another termination of resistance R19 meet charge controlling chip U2
6 feet and the one end resistance R21, one end and ground of another termination capacitor C15 of capacitance C14, the other end of capacitance C15 pass through resistance
The other end of R22 connecting resistances R21 and 7 feet of charge controlling chip U2,8 feet of charge controlling chip U2 pass through capacitance C16 all the way
Ground connection, another way connect 10 feet of charge controlling chip U2,11 feet by resistance R27, and 13 feet meet power supply DC+5V and pass through capacitance
C18 connects 14 feet and ground of charge controlling chip U2, and 15 feet connect 15 feet of micro controller unit circuit MCU control chips U5, capacitance
One end of C23, capacitance C20, resistance R39, capacitance C23, capacitance C20 other end ground connection, the other end of resistance R39 connects fortune respectively
1 foot of amplifier U4, one end of resistance R46, resistance R49, resistance R50 are calculated, another termination operational amplifier U4's of resistance R46
2 feet are simultaneously grounded by resistance R45, and 6 feet of another termination operational amplifier U4 of resistance R49 are simultaneously grounded, resistance by capacitance C26
5 feet of another termination operational amplifier U4 of R50 are simultaneously grounded by capacitance C25, and 3 feet, 4 feet of operational amplifier U4 are one in parallel
3 one end foot connecting resistance R48 of capacitance C24, operational amplifier U4,4 feet ground connection, 7 feet meet resistance R76 in micro controller unit circuit
The other end, 8 feet meet power supply DC+5V and are grounded by capacitance C21,16 feet of charge controlling chip U2,18 feet, 25 feet ground connection,
17 feet, 19 feet, 24 feet meet power supply DC+5V, and 20 feet connect 22 feet by capacitance C17 all the way, and another way connects power supply by diode D2
DC+5V, 21 one end foot connecting resistance R28,23 one end foot connecting resistance R25,26 one end foot connecting resistance R18,28 foot connecting resistance R16 mono-
End, 29 feet terminate 27 feet of charge controlling chip U2 by meeting capacitance C8 mono- all the way, and another way meets power supply DC by diode D1
+ 5V, 30 feet pass through the one end connecting resistance R7 resistance R12 and ground, 31 feet of another termination charge controlling chip U2 of resistance R7, resistance
R3, resistance R1, resistance R4, capacitance C1, capacitance C2, capacitance C3 one end connect power supply DC+5V's and charge controlling chip U2 respectively
33 feet, 36 feet, the capacitance C1 other ends connect 32 feet of charge controlling chip U2 and the other end and ground of resistance R4 by capacitance C6, electricity
Hold 34 feet, 35 feet and the ground of another termination charge controlling chip U2 of C2, capacitance C3, the 37 foot connecting resistances of charge controlling chip U2
The other end of R1 and 1 foot of micro controller unit circuit U 5, the other end and micro controller unit circuit MCU of 38 foot connecting resistance R3
2 feet of chip U5 are controlled, 40 feet connect 16 feet of micro controller unit circuit MCU control chips U5.Charge controlling chip U2 is
CV90312T wireless chargings manage microcontroller.
Wireless transmitting unit circuit is connected as：The drain electrode of switching tube Q1, Q5, Q9 connect and connect wireless charging management module electricity
27 feet of charge controlling chip U2 in road, switching tube Q1, switching tube Q2 source electrode connect and connecting resistance R2 one end, switching tube
Q1, switching tube Q2 grid connect and the other end of connecting resistance R2 and one end of resistance R5, another termination triode of resistance R5
The collector of Q3, the base stage connecting resistance R8 of triode Q3, one end of resistance R9, the transmitting of another termination triode Q3 of resistance R8
Pole, the collector of another termination triode Q4 of resistance R9, the base stage connecting resistance R11 of triode Q4, one end of resistance R13, electricity
Hinder 10 feet of another termination micro controller unit circuit MCU control chips U5 of R11, another termination triode Q4 of resistance R13
Emitter and ground, switching tube Q5, switching tube Q6 source electrode connect and one end of connecting resistance R17, switching tube Q5, switching tube Q6
Grid connects and the other end of connecting resistance R17 and one end of resistance R20, the collector of another termination triode Q7 of resistance R20,
The base stage connecting resistance R23 of triode Q7, one end of resistance R24, the emitter of another termination triode Q7 of resistance R23, resistance
The collector of another termination triode Q8 of R24, the base stage connecting resistance R26 of triode Q8, one end of resistance R29, resistance R26's
9 feet of another termination MCU control chips U5, switching tube Q9, the emitter and ground of another termination triode Q8 of resistance R29 are opened
The source electrode for closing pipe Q10 connects and one end of connecting resistance R31, switching tube Q9, switching tube Q10 grid connect and connecting resistance R31
One end of the other end and resistance R34, the collector of another termination triode Q11 of resistance R34, the base stage of triode Q11 connect electricity
One end of R35, resistance R36 are hindered, the other end of resistance R35 connects the emitter of triode Q11, triode Q3, triode Q7 respectively
And in wireless charging management module circuit charge controlling chip U2 29 feet, the current collection of another termination triode Q12 of resistance R36
Pole, the base stage connecting resistance R40 of triode Q12, one end of resistance R44, another termination micro controller unit circuit of resistance R40
MCU controls 4 feet of chip U5, the emitter and ground of another termination triode Q12 of resistance R44, capacitance C9, capacitance C10, capacitance
C12, capacitance C13 are in parallel, one end of capacitance C10 connect respectively inductance CL1, inductance CL2, inductance CL3, resistance R38, capacitance C7 one
End, another termination micro controller unit circuitous resistance R72 other ends of capacitance C10, another termination switching tube Q2's of inductance CL1
Drain electrode, the drain electrode of another termination switching tube Q6 of inductance CL2, the drain electrode of another termination switching tube Q10 of inductance CL3, resistance R38
The other end pass through one end of diode D3 connecting resistances R43, capacitance C19, capacitance C22, another terminating resistor R37 of capacitance C19, electricity
One end of resistance R42 and 12 feet of wireless charging management module circuit electric control chip U2, another termination power DC+5V of resistance R37,
The other end ground connection of resistance R42, capacitance C22, resistance R43, the other end of capacitance C7 pass through resistance R6 connecting resistances R30, diode
The anode of D13, the cathode connecting resistance R33 of diode D13, one end of capacitance C34 and micro controller unit circuit MCU control chip
12 feet of U5, resistance R30, resistance R33, capacitance C34 other end ground connection, 1 foot of driving circuit U1 connects the 7 of driving circuit U3
Foot, 8 feet, switching tube Q1, switching tube Q5, the grid of switching tube Q9 and wireless charging management module circuit charge controlling chip U2
3 feet of 27 feet, driving circuit U1 connect 5 feet of driving circuit U3,6 feet, the other end of capacitance C10 and wireless charging management module electricity
22 feet of road charge controlling chip U2,5 feet, 6 feet, 7 feet, 8 feet of driving circuit U1 connect capacitance C4, one end of capacitance C5 and power supply
The other end ground connection of DC+5V, capacitance C4, capacitance C5,1 foot, 3 foot of driving circuit U3 are grounded by resistance R32 and connect wireless charging
The other end of management module circuitous resistance R48, it is another that 2 feet of driving circuit U1 meet wireless charging management module circuitous resistance R16
End, 4 feet of driving circuit U1 connect the wireless charging management module circuitous resistance R28 other ends, and 2 feet of driving circuit U3 connect wireless charging
Fulgurite manages the modular circuit resistance R18 other ends, and it is another that 4 feet of driving circuit U3 meet wireless charging management module circuitous resistance R25
End, 17 feet of 1 mouthful of connecting resistance R65 of interface J3, one end of capacitance C45 and micro controller unit circuit MCU control chips U5, electricity
Another termination power DC+5V of R65 are hindered, the other end of capacitance C45 is connect with 2 mouthfuls of interface J3 and ground respectively.Driving circuit U1, it drives
Dynamic circuit U 3 is the bis- N-channel field-effect tube of AO4800.
A kind of charging method of mobile wireless charger baby circuit, steps are as follows：
Wireless charging receiving sheet is attached by mobile phone USB interface and mobile phone, wireless charging receiving sheet, which posts, to be filled
On electric treasured shell, transmitting coil, that is, inductance CL1, the electricity of the coiler part alignment wireless transmitting unit circuit of wireless charging receiving sheet
Feel CL2, inductance CL3, the two is close, and distance is no more than 6mm.
When passing through DC current in inductance CL1, inductance CL2, inductance CL3, around the fixed magnetic line of force is only presented, no
Change over time, when passing through alternating current in inductance CL1, inductance CL2, inductance CL3 coils, around will show at any time
Between and the magnetic line of force that changes, the magnetic line of force of variation will produce induced potential at coil both ends, this induced potential be equivalent to one it is " new
Power supply " forms inverter bridge driving circuit, by filling in circuit by two driving circuit U1, driving circuit U3 around this principle
The control of electric control chip U2 makes the inductance CL1 in circuit, inductance CL2, generates at any time around tri- transmitting coils of inductance CL3
Between the magnetic line of force that changes pass through electromagnetism sense when the coil of receiving device is within the scope of the magnetic line of force that this is changed over time
Induced potential should will be generated at coil both ends, generate electric current, given by the blank film of mobile phone or using wireless charging receiving sheet
Mobile phone provides power supply.
Voltage detecting circuit in the circuit of mobile power management simultaneously is constantly detected the voltage in circuit, to mistake
Stream, short circuit, the phenomenon that overcharging, carry out power-off protection, pair also under to battery core charged state, when being exported using wireless charging, ensure
Electric energy equilibrium assignment preferentially ensures in electricity shortage the needs of wireless charging to battery core and output winding, when using battery core
It is preferential to ensure being normally carried out for wireless charging when to wired output and wireless output while powering.
It when only using wired charging, is exported to charging mobile phone battery by wired output port J2, and passes through resistance R74
（0.05ohm）Detection charging current feeds back to MCU control chip U5, MCU controls chip U5 and passes through 18 foot LOAD IN and 13 feet
Two signal ends of CURUSB constantly monitor the charge condition of mobile phone, and the variation of induction charging voltage, leads to when MCU control chips U5 is flat
It crosses switching tube Q13 to control wired output port J2, when fully charged, the charging of cut-out wired output port J2 prevents
Over-charging of battery and cause danger.
When being powered using external adapter, according to the battery core electricity that 10 ends foot VBAT of power management chip U6 detect,
Battery core is distributed under the premise of ensureing that wireless charging port charges normal by the internal calculation of power management module, is powered
Core charges, while being protected to the overcurrent-overvoltage of battery core, and power protection chip U7 is increased in terms of hardware protection, and power supply is protected
Shield chip U7 carries out overcharging/discharge prevention by detecting 4 foot VCC or 6 foot VM terminal voltages.Charge/discharge protective condition hair is served as
When raw, built-in field-effect tube becomes ending from being connected, to which charge/discharge process stops.
The present invention gathers around the micro USB input port J1 there are one 2A, the nothing of the A-USB delivery outlets J2 and a 1A of a 2A
Line output terminal（Three transmitting coils）, highest supports wired output 2.4A, wirelessly exports 1A.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as this hair
Bright protection domain.
Claims (5)
1. a kind of mobile wireless charger baby circuit, including charger baby shell further include the charger baby being arranged in charger baby shell
Circuit, the charger baby circuit include mobile power management circuit, micro controller unit circuit, wireless charging control circuit, nothing
Line transmitter unit circuit, power protection chip U7, battery core, external power supply USB interface J1, wired output port J2, wireless charging
Receiving sheet, mobile power management circuit respectively with micro controller unit circuit, wireless charging control circuit, wireless transmission list
First circuit, power protection chip U7, battery core, external power supply USB interface J1, wired output port J2 connections, the microcontroller
Element circuit is connect with mobile power management circuit, wireless charging control circuit respectively, wireless charging control circuit and wireless hair
Element circuit connection is penetrated, the battery core is connect with power protection chip U7, and the wireless charging receiving sheet is posted in charger baby shell
On body, wireless charging receiving sheet receives the magnetic line of force signal of wireless transmitting unit circuit；It is characterized in that：
The mobile power management circuit is connected as：It is parallel with capacitance respectively between 1 needle and 5 needles of external power supply USB port J1
C27, capacitance C28,2 needles connect power supply and bear, and 3 needles are connecing power supply just, and 4 needles, 5 needles ground connection, 1 needle connect 20 feet of power management chip U6,21
1 foot, 2 feet, 3 feet of foot and input voltage anode VDD5V, power protection chip U7 meet one end and the contact TP7 of capacitance C30 respectively
That is the cathode of battery core, 4 feet of another termination power management chip U7 of capacitance C30 and one end of resistance R62, resistance R62's is another
One end connects capacitance C35, capacitance C36, one end of resistance R60,10 feet of power management chip U6, contact TP8 i.e. battery cores respectively
Anode and light emitting diode D8, light emitting diode D9, light emitting diode D10, the anode of light emitting diode D11 and BAT, that is, battery core
Anode, capacitance C35, capacitance C36 other ends ground connection, the cathode of light emitting diode D8 connects power management chip by resistance R66
2 feet of U6, the cathode of light emitting diode D9 connect 1 foot of power management chip U6 by resistance R67, and light emitting diode D10's is negative
Pole connects 24 feet of power management chip U6 by resistance R68, and the cathode of light emitting diode D11 connects power management by resistance R70
23 feet of chip U6,6 feet of power protection chip U7 connect 7 feet, 8 feet and ground of power protection chip U7, resistance by resistance R61
Another termination capacitor C46, one end of inductance L1 and 11 feet of power management chip U6 of R60, the other end ground connection of capacitance C46,
One end of another termination capacitor C29 of inductance L1 and 14 feet, 15 feet of power management chip U6, another termination electricity of capacitance C29
22 feet of source control chip U6, one end of the 4 foot connecting resistance R57 of power management chip U6 and the anode of diode D4, resistance R57
Another termination BAT, that is, battery core anode, the cathode of diode D4 connects one end of switch K1 and the cathode of diode D6, switch K1's
The other end is grounded, the 8 feet difference connecting resistance R47 of power management chip U6, one end of resistance R64, resistance R47 other ends ground connection,
The other end of resistance R64 is grounded by resistance R63, and 9 feet of power management chip U6 are grounded by capacitance C37, power management core
16 feet, 17 feet of piece U6 connect one end of capacitance C39, capacitance C38 respectively, and 18 feet, 19 feet of power management chip U6 are connected to respectively
1 needle of line output terminal mouth J2, resistance R52, one end of resistance R54, capacitance C40, capacitance C41, capacitance C42, capacitance C43 one end
And one end of the 2 needle connecting resistance R53 of power supply DC+5V, wired output port J2 and the other end of resistance R54, resistance R53's is another
One end and ground of terminating resistor R51, the other end of another terminating resistor R52 of resistance R51 and 3 needles of wired output port J2,
4 needles of wired output port J2 connect the drain electrode of switching tube Q13, resistance R71, resistance R73 one end, the source electrode of switching tube Q13 is logical
Cross resistance R74 ground connection, 7 feet, 12 feet, 13 feet, 25 feet, capacitance C37, capacitance C38, capacitance C39, the capacitance of power management chip U6
C40, capacitance C41, capacitance C42, capacitance C43, resistance R73 the other end be grounded, contact TP9 ground connection；Power management chip U6
Model HE43100, the model DS7066 of power protection chip U7.
2. a kind of mobile wireless charger baby circuit according to claim 1, it is characterised in that：The micro controller unit electricity
Road is connected as：MCU control 6 feet of chip U5 respectively with the test point TP3 of detection power supply, the one end capacitance C32, power supply DC+5V
Connection, the capacitance C32 other ends are connect with test point TP6, capacitance C31, the one end capacitance C44 and the ground of detection ground connection, capacitance C31
Another termination MCU controls chip U5 7 feet, the one end another terminating resistor R69 of capacitance C44, MCU control chips U5 8 feet and
Mobile power manages the grid of contactor pipe Q13, and resistance R69 another termination power DC+5V, MCU control 11 feet of chip U5
13 feet of the one end connecting resistance R72, MCU control chips U5 connect the source electrode of mobile power management contactor pipe Q13, and MCU controls core
14 feet of piece U5 connect capacitance C33, the reference pole of one end of resistance R58 and controllable accurate source of stable pressure U8 and cathode, and capacitance C33's is another
The anode and ground of one termination controllable accurate source of stable pressure U8, another termination power DC+5V of resistance R58 simultaneously meet MCU by resistance R56
It controls 19 feet of chip U5 and the anode of mobile power management circuit diode D6,18 feet of MCU control chips U5 connects mobile electricity
The other end of power management circuits resistance R71, MCU control one end of the 20 foot connecting resistance R55 of chip U5, resistance R76, resistance R55
Another termination power DC+5V, MCU controls the 3 feet ground connection of chip U5, and resistance R59 mono- termination power DC+5V, resistance R59 is another
The anode of one end sending and receiving optical diode D7 and one end of resistance R41, the other end ground connection of resistance R41, light emitting diode D7's is negative
5 feet of anode and MCU control the chip U5 of pole sending and receiving optical diode D12, the cathode of light emitting diode D12 are connect by resistance R75
Ground, contact TP5 connect 8 feet of MCU control chips U5；MCU controls chip U5 models MB95F564.
3. a kind of mobile wireless charger baby circuit according to claim 2, it is characterised in that：The wireless charging manages mould
Block circuit is connected as：The 1 foot connecting resistance R14 of charge controlling chip U2, one end of resistance R10, the another of resistance R10 connect one end charging
Control 40 feet of chip U2 and 16 feet of micro controller unit circuit MCU control chips U5, another terminating resistor of resistance R14
One end of R15, resistance R19, capacitance C14,2 feet of another termination charge controlling chip U2 of resistance R15 and one end of capacitance C11,
The other end of capacitance C11 is grounded, and another termination of resistance R19 connects 6 feet and the one end resistance R21 of charge controlling chip U2, capacitance
One end and ground of another termination capacitor C15 of C14, the other end of capacitance C15 by the other end of resistance R22 connecting resistances R21 and
8 feet of 7 feet of charge controlling chip U2, charge controlling chip U2 are grounded by capacitance C16 all the way, and another way passes through resistance R27
10 feet, 11 feet of charge controlling chip U2 are connect, 13 feet meet power supply DC+5V and connect the 14 of charge controlling chip U2 by capacitance C18
Foot and ground, 15 feet connect 15 feet of micro controller unit circuit MCU control chip U5, capacitance C23, capacitance C20, resistance R39 one
End, capacitance C23, capacitance C20 other end ground connection, the other end of resistance R39 connects 1 foot, the resistance of operational amplifier U4 respectively
One end of R46, resistance R49, resistance R50,2 feet of another termination operational amplifier U4 of resistance R46 are simultaneously connect by resistance R45
Ground, 6 feet of another termination operational amplifier U4 of resistance R49 are simultaneously grounded by capacitance C26, and another termination operation of resistance R50 is put
5 feet of big device U4 are simultaneously grounded by capacitance C25, and 3 feet, 4 feet of operational amplifier U4 are connected in parallel with a capacitor C24, operational amplifier
3 one end foot connecting resistance R48 of U4,4 feet ground connection, 7 feet connect the other end of resistance R76 in micro controller unit circuit, and 8 feet connect power supply
DC+5V is simultaneously grounded by capacitance C21, and 16 feet of charge controlling chip U2,18 feet, 25 feet ground connection, 17 feet, 19 feet, 24 feet connect electricity
Source DC+5V, 20 feet connect 22 feet by capacitance C17 all the way, and another way meets power supply DC+5V, 21 foot connecting resistance R28 by diode D2
One end, 23 one end foot connecting resistance R25,26 one end foot connecting resistance R18,28 one end foot connecting resistance R16,29 feet are all the way by connecing electricity
Hold 27 feet that C8 mono- terminates charge controlling chip U2, another way meets power supply DC+5V by diode D1, and 30 feet pass through resistance R12
The one end connecting resistance R7 and ground, 31 feet of another termination charge controlling chip U2 of resistance R7, resistance R3, resistance R1, resistance R4, capacitance
C1, capacitance C2, capacitance C3 one end connect 33 feet of power supply DC+5V and charge controlling chip U2,36 feet, the capacitance C1 other ends respectively
Ground connection, and by 32 feet of capacitance C6 connection charge controlling chips U2 and the other end of resistance R4, capacitance C2, capacitance C3 it is another
Terminate 34 feet, 35 feet and the ground of charge controlling chip U2, the other end and micro-control of the 37 foot connecting resistance R1 of charge controlling chip U2
1 foot of device element circuit U5 processed, the other end of 38 foot connecting resistance R3 and 2 feet of micro controller unit circuit MCU control chips U5,
40 feet connect 16 feet of micro controller unit circuit MCU control chips U5；Charge controlling chip U2 is CV90312T wireless charging fulgurites
Manage microcontroller.
4. a kind of mobile wireless charger baby circuit according to claim 3, it is characterised in that：The wireless transmitting unit electricity
Road is connected as：The drain electrode of switching tube Q1, Q5, Q9 connect and connect 27 of charge controlling chip U2 in wireless charging management module circuit
Foot, switching tube Q1, switching tube Q2 source electrode connect and connecting resistance R2 one end, switching tube Q1, switching tube Q2 grid connect simultaneously
The other end of connecting resistance R2 and one end of resistance R5, the collector of another termination triode Q3 of resistance R5, the base of triode Q3
One end of pole connecting resistance R8, resistance R9, the emitter of another termination triode Q3 of resistance R8, three pole of another termination of resistance R9
The collector of pipe Q4, the base stage connecting resistance R11 of triode Q4, one end of resistance R13, another termination microcontroller of resistance R11
10 feet of element circuit MCU control chips U5, switching tube Q5, the emitter and ground of another termination triode Q4 of resistance R13 are opened
The source electrode for closing pipe Q6 connects and one end of connecting resistance R17, switching tube Q5, switching tube Q6 grid connect and connecting resistance R17 it is another
One end and one end of resistance R20, the collector of another termination triode Q7 of resistance R20, the base stage connecting resistance of triode Q7
One end of R23, resistance R24, the emitter of another termination triode Q7 of resistance R23, another termination triode Q8 of resistance R24
Collector, the base stage connecting resistance R26 of triode Q8, one end of resistance R29, another termination MCU controls chip U5 of resistance R26
9 feet, the emitter and ground of another termination triode Q8 of resistance R29, switching tube Q9, switching tube Q10 source electrode connect and connect
One end of resistance R31, switching tube Q9, switching tube Q10 grid connect and the other end of connecting resistance R31 and one end of resistance R34,
The collector of another termination triode Q11 of resistance R34, the base stage connecting resistance R35 of triode Q11, one end of resistance R36, electricity
The other end of resistance R35 connects triode Q11, triode Q3, the emitter of triode Q7 and wireless charging management module circuit respectively
29 feet of middle charge controlling chip U2, the collector of another termination triode Q12 of resistance R36, the base stage of triode Q12 connect electricity
Hinder one end of R40, resistance R44,4 feet of another termination micro controller unit circuit MCU control chips U5 of resistance R40, resistance
The emitter and ground of another termination triode Q12 of R44, capacitance C9, capacitance C10, capacitance C12, capacitance C13 are in parallel, capacitance C10
One end connect one end of inductance CL1, inductance CL2, inductance CL3, resistance R38, capacitance C7 respectively, another termination of capacitance C10 is micro-
The controller unit circuitous resistance R72 other ends, the drain electrode of another termination switching tube Q2 of inductance CL1, another termination of inductance CL2
The drain electrode of switching tube Q6, the drain electrode of another termination switching tube Q10 of inductance CL3, the other end of resistance R38 are connect by diode D3
One end of resistance R43, capacitance C19, capacitance C22, another terminating resistor R37 of capacitance C19, one end of resistance R42 and wireless charging
12 feet of management module circuit electric control chip U2, another termination power DC+5V of resistance R37, resistance R42, capacitance C22, resistance
The other end of R43 is grounded, the other end of capacitance C7 by the anode of resistance R6 connecting resistances R30, diode D13, diode D13's
12 feet of cathode connecting resistance R33, one end of capacitance C34 and micro controller unit circuit MCU control chips U5, resistance R30, resistance
The other end ground connection of R33, capacitance C34,1 foot of driving circuit U1 connect 7 feet of driving circuit U3,8 feet, switching tube Q1, switching tube
27 feet of Q5, the grid of switching tube Q9 and wireless charging management module circuit charge controlling chip U2,3 feet of driving circuit U1 connect
5 feet of driving circuit U3, the 22 of 6 feet, the other end of capacitance C10 and wireless charging management module circuit charge controlling chip U2
Foot, 5 feet, 6 feet, 7 feet, 8 feet of driving circuit U1 meet capacitance C4, one end of capacitance C5 and power supply DC+5V, capacitance C4, capacitance C5
Other end ground connection, 1 foot, 3 foot of driving circuit U3 is grounded by resistance R32 and meets wireless charging management module circuitous resistance R48
The other end, 2 feet of driving circuit U1 connect the wireless charging management module circuitous resistance R16 other ends, and 4 feet of driving circuit U1 connect
The wireless charging management module circuitous resistance R28 other ends, 2 feet of driving circuit U3 connect wireless charging management module circuitous resistance
4 feet of the R18 other ends, driving circuit U3 connect the wireless charging management module circuitous resistance R25 other ends, and 1 mouthful of interface J3 connects electricity
Hinder 17 feet of R65, one end of capacitance C45 and micro controller unit circuit MCU control chips U5, another termination powers of resistance R65
The other end of DC+5V, capacitance C45 are connect with 2 mouthfuls of interface J3 and ground respectively；Driving circuit U1, driving circuit U3 are AO4800
Double N-channel field-effect tube.
5. a kind of charging method of mobile wireless charger baby circuit according to claim 4, it is characterised in that：Step is such as
Under, wireless charging receiving sheet is attached by mobile phone USB interface and mobile phone, wireless charging receiving sheet is posted in charger baby shell
On body, transmitting coil, that is, inductance CL1 of the coiler part of wireless charging receiving sheet alignment wireless transmitting unit circuit, inductance CL2,
Inductance CL3, the two is close, and distance is no more than 6mm；
When passing through DC current in inductance CL1, inductance CL2, inductance CL3, around the fixed magnetic line of force is only presented, not at any time
Between change, when passing through alternating current in inductance CL1, inductance CL2, inductance CL3 coils, around will show at any time and
The magnetic line of force of the magnetic line of force of variation, variation will produce induced potential at coil both ends, this induced potential is equivalent to a new power,
Inverter bridge driving circuit is formed by two driving circuit U1, driving circuit U3 in circuit, by the control of charge controlling chip U2,
Make the inductance CL1 in circuit, inductance CL2, generate the magnetic line of force changed over time around tri- transmitting coils of inductance CL3, when connecing
When the coil of receiving unit is within the scope of the magnetic line of force that this is changed over time, it will be generated at coil both ends by electromagnetic induction
Induced potential generates electric current, and power supply is provided to mobile phone by the blank film of mobile phone or using wireless charging receiving sheet；
Voltage detecting circuit in the circuit of mobile power management simultaneously is constantly detected the voltage in circuit, short to overcurrent
Road, the phenomenon that overcharging, carry out power-off protection, pair also under to battery core charged state, when being exported using wireless charging, ensure electric energy
Equilibrium assignment preferentially ensures in electricity shortage the needs of wireless charging to battery core and output winding, when using battery core to being had
It is preferential to ensure being normally carried out for wireless charging when line exports and wirelessly exports while powering；
It when only using wired charging, is exported to charging mobile phone battery by wired output port J2, and is detected by resistance R74
Charging current feeds back to MCU controls chip U5, and MCU controls the variation of chip U5 constantly induction charging voltages, passes through switching tube Q13
Wired output port J2 is controlled, when fully charged, the charging of cut-out wired output port J2 prevents battery of mobile phone from overcharging
And it causes danger.
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| CN201610271754.XA CN105811511B (en) | 2016-04-28 | 2016-04-28 | A kind of mobile wireless charger baby circuit and charging method |
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| CN201610271754.XA CN105811511B (en) | 2016-04-28 | 2016-04-28 | A kind of mobile wireless charger baby circuit and charging method |
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| CN105811511B true CN105811511B (en) | 2018-09-11 |
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| CN108288878A (en) * | 2017-12-29 | 2018-07-17 | 上海挚想科技有限公司 | Charging method and charging unit |
| CN109120031A (en) * | 2018-06-29 | 2019-01-01 | 深圳市蓝禾技术有限公司 | Wireless charging treasured and its discharge control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202524114U (en) * | 2012-03-13 | 2012-11-07 | 东莞市隆佳展能源科技有限公司 | Mobile power supply capable of wireless charging |
| KR20120133306A (en) * | 2011-05-31 | 2012-12-10 | 심순섭 | Wireless charger to charge battery of mobile comunication device having different capacity and method thereof |
| CN202679031U (en) * | 2012-07-24 | 2013-01-16 | 宋娜 | Mobile wireless charging device |
| CN103618357A (en) * | 2013-12-02 | 2014-03-05 | 宁波一凯电子有限公司 | Mobile power source |
| CN205657456U (en) * | 2016-04-28 | 2016-10-19 | 天津市中环通讯技术有限公司 | Remove wireless precious circuit that charges |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120133306A (en) * | 2011-05-31 | 2012-12-10 | 심순섭 | Wireless charger to charge battery of mobile comunication device having different capacity and method thereof |
| CN202524114U (en) * | 2012-03-13 | 2012-11-07 | 东莞市隆佳展能源科技有限公司 | Mobile power supply capable of wireless charging |
| CN202679031U (en) * | 2012-07-24 | 2013-01-16 | 宋娜 | Mobile wireless charging device |
| CN103618357A (en) * | 2013-12-02 | 2014-03-05 | 宁波一凯电子有限公司 | Mobile power source |
| CN205657456U (en) * | 2016-04-28 | 2016-10-19 | 天津市中环通讯技术有限公司 | Remove wireless precious circuit that charges |
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Granted publication date: 20180911 Termination date: 20190428 |