CN105811511A - Wireless mobile power pack circuit and charging method - Google Patents
Wireless mobile power pack circuit and charging method Download PDFInfo
- Publication number
- CN105811511A CN105811511A CN201610271754.XA CN201610271754A CN105811511A CN 105811511 A CN105811511 A CN 105811511A CN 201610271754 A CN201610271754 A CN 201610271754A CN 105811511 A CN105811511 A CN 105811511A
- Authority
- CN
- China
- Prior art keywords
- resistance
- feet
- electric capacity
- circuit
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007600 charging Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000006698 induction Effects 0.000 claims abstract description 9
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 230000036962 time dependent Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000005669 field effect Effects 0.000 claims description 3
- 238000007726 management method Methods 0.000 description 46
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H02J7/025—
-
- 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
-
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a wireless mobile power pack circuit and a charging method, and belongs to the mobile device charging. A wireless charging receiving slice is connected with a mobile phone through a mobile phone USB interface. The wireless charging receiving slice is adhered on the shell of a mobile power pack. When an alternating current passes through coils of an inductor CL1, an inductor CL2 and an inductor CL3, magnetic induction lines changing along with time appear around the coils. Induction electromotive force is generated at two ends of the coils by the changing magnetic induction lines. The induction electromotive force is equivalent to a new power supply. When the coil of a receiving device is located in the ranges of magnetic induction lines changing along with the time, the induction electromotive force is produced at two ends of the coils through electromagnetic induction, thus generating a current. The power supply is supplied to the mobile phone through the receiving slice of the mobile phone or by using the wireless charging receiving slice. When the circuit is used, it is unnecessary to plug in and pull out a charging plug repeatedly; and a charger is avoided from being damaged due to frequent plug-in and pull-out. The circuit and the method are safe and convenient in use and have a function of flexible usage of wireless charging and wire changing.
Description
Technical field
The present invention relates to a kind of mobile wireless charger baby circuit and charging method, for charging of mobile devices.
Background technology
Present mobile charging equipment (charger baby) directly to charging of mobile devices, and self can have the device of charge storage unit.The main category multifunctionality charger baby of existing market, is substantially equipped with the USB output of standard, substantially can meet the mobile equipment that existing market is common, such as multiple digital product chargings such as mobile phone, MP3, MP4, PDA, PSP, bluetooth earphone, digital cameras.In daily life, work, leisure, the power consumption of smart mobile phone is relatively large, it is necessary to supplements electric power at any time, due to traditional wired charge mode in use, it is necessary to plug charging plug repeatedly, it is easy to cause interface to damage, causes charging.Modern society has two mobile phone personages and increases gradually, is only the pattern that a mobile phone is charged and progressively cannot meet the actual demand of current user.Take phone in charging, office is surfed the Net, amusement and recreation have again potential safety hazard, therefore, adopts wireless charging to become the direction of future development.
Summary of the invention
In view of the deficiency of the shape of prior art and existence, the invention provides a kind of mobile wireless charger baby circuit and charging method, adopting wireless charging mode is charging of mobile devices, and possesses wired charge function.
nullThe present invention is for achieving the above object，Be the technical scheme is that a kind of mobile wireless charger baby circuit，Including charger baby housing，It is characterized in that: also include the charger baby circuit being arranged in charger baby housing，Described charger baby circuit includes portable power source management circuit、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、Wireless charging receiving sheet，Described portable power source management 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 connects，Described micro controller unit circuit manages circuit with portable power source respectively、Wireless charging control circuit connects，Wireless charging control circuit is connected with wireless transmitting unit circuit，Described battery core is connected with power protection chip U7，Described wireless charging receiving sheet posts on charger baby housing，Wireless charging receiving sheet receives the magnetic line of force signal of wireless transmitting unit circuit.
A kind of charging method of mobile wireless charger baby circuit, it is characterised in that: step is as follows,
Wireless charging receiving sheet is attached by mobile phone USB interface and mobile phone, wireless charging receiving sheet posts on charger baby housing, the transmitting coil of the coiler part alignment wireless transmitting unit circuit of wireless charging receiving sheet and inductance CL1, inductance CL2, inductance CL3, both are close, and distance is less than 6mm；
nullAs inductance CL1、Inductance CL2、Time in inductance CL3 by DC current，Only present the fixing magnetic line of force about，Do not change over time，When at inductance CL1、Inductance CL2、Time in inductance CL3 coil by alternating current，The magnetic line of force of time to time change will be presented about，The magnetic line of force of change can produce induced potential at coil two ends，This induced potential is equivalent to a new power，By two drive circuit U1 in circuit、Drive circuit U3 forms inverter bridge drive circuit，Control by charge controlling chip U2，Make the inductance CL1 in circuit、Inductance CL2、The time dependent magnetic line of force is produced around tri-transmitting coils of inductance CL3，When the coil of the equipment of reception is within the scope of this time dependent magnetic line of force，Induced potential will be produced at coil two ends by electromagnetic induction，Produce electric current，Power supply is provided to mobile phone by the blank film of mobile phone or use wireless charging receiving sheet；
Voltage in circuit is detected by voltage detecting circuit in the circuit of portable power source management simultaneously constantly; to crossing stream; short circuit; the phenomenon overcharged carries out power-off protection, to also under battery core charged state, when using wireless charging output; ensure that electric energy equilibrium assignment is to battery core and output winding; and the needs of wireless charging are preferentially ensured when electricity shortage, when using battery core to power to wired output and wireless output simultaneously, preferential ensure being normally carried out of wireless charging.
When only using wired charging, export to charging mobile phone battery by wired output port J2, and feed back to MCU control chip U5 by resistance R74 detection charging current, the change of MCU control chip U5 induction charging voltage constantly, by switching tube Q13, wired output port J2 is controlled, when fully charged, cut off the charging of wired output port J2, it is prevented that battery of mobile phone overcharges and causes danger.
The invention has the beneficial effects as follows: the present invention has the protection of wireless charging double metal foreign bodies detection, as long as namely there being on non-loaded Wireless charging coil to have the metallic foreign body all can stoppage protection, it is prevented that foreign body is heated.
The present invention adopts single bridge circuit driver three-winding circuit, more optimizes customer experience on cost-effective basis.
Wireless charging receiving sheet is connected on the battery needing charging by the present invention, the transmitting coil distance near 6mm of electromagnetic induction principle and wireless charger body is utilized during use, realize wireless charging, in use need not plug charging plug repeatedly, it is to avoid charger is because the generation of situation that frequently damages of plug.The safe and convenient when present invention uses, has a wireless charging and function that wired charging uses flexibly.
When using battery core to power to wired output and wireless output simultaneously, being normally carried out of preferential guarantee wireless charging.
Accompanying drawing explanation
The circuit that Fig. 1 is the present invention connects block diagram；
Fig. 2 is the circuit diagram of wireless charging of the present invention management module；
Fig. 3 is the circuit diagram of portable power source of the present invention management module；
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.
Detailed description of the invention
As shown in Figures 1 to 5, a kind of mobile wireless charger baby circuit, including charger baby housing, also include the charger baby circuit being arranged in charger baby housing.
Charger baby circuit includes portable power source management circuit, 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, wireless charging receiving sheet.
Portable power source management circuit is connected 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 respectively; micro controller unit circuit manages circuit with portable power source respectively, wireless charging control circuit is connected; wireless charging control circuit is connected with wireless transmitting unit circuit; battery core is connected with power protection chip U7; wireless charging receiving sheet posts on charger baby housing, and wireless charging receiving sheet receives the magnetic line of force signal of wireless transmitting unit circuit.
Portable power source partial circuit control flow, first power management chip U6 is by detecting the voltage of battery core, distribute the electricity pattern of wireless charging and wired charging, when battery core electricity abundance, can guarantee that and be powered to wired charging USB port J1 and wired output port J2；Preferentially ensure that wireless charging is normally carried out.
nullPortable power source management circuit is connected as: shunt capacitance C27 between 1 pin and 5 pins of external power supply USB port J1、Electric capacity C28，2 pins connect power supply and bear，3 pins are just connecing power supply，4 pins、5 pin ground connection，1 pin connects 20 feet of power management chip U6、21 feet and input voltage positive pole VDD5V，1 foot of power protection chip U7、2 feet、3 feet connect one end of electric capacity C30 and the negative pole of contact TP7 and battery respectively，4 feet of another termination power management chip U7 of electric capacity C30 and one end of resistance R62，The other end of resistance R62 meets electric capacity C35 respectively、Electric capacity C36、One end of resistance R60、10 feet of power management chip U6、The positive pole of contact TP8 and battery and light emitting diode D8、Light emitting diode D9、Light emitting diode D10、The positive pole of the positive pole of light emitting diode D11 and BAT and battery，Electric capacity C35、Electric capacity C36 other end ground connection，The negative pole of light emitting diode D8 connects 2 feet of power management chip U6 by resistance R66，The negative pole of light emitting diode D9 connects 1 foot of power management chip U6 by resistance R67，The negative pole of light emitting diode D10 connects 24 feet of power management chip U6 by resistance R68，The negative pole of light emitting diode D11 connects 23 feet of power management chip U6 by resistance R70，6 feet of power protection chip U7 connect 7 feet of power protection chip U7 by resistance R61、8 feet and ground，Another termination capacitor C46 of resistance R60、One end of inductance L1 and 11 feet of power management chip U6，The other end ground connection of electric capacity C46，One end of another termination capacitor C29 of inductance L1 and 14 feet of power management chip U6、15 feet，22 feet of another termination power management chip U6 of electric capacity C29，One end of the 4 foot connecting resistance R57 of power management chip U6 and the positive pole of diode D4，Another termination BAT and anode of resistance R57，The negative pole of diode D4 connects one end of switch K1 and the negative pole of diode D6，The other end ground connection of switch K1，8 feet of power management chip U6 connecting resistance R47 respectively、One end of resistance R64，Resistance R47 other end ground connection，The other end of resistance R64 passes through resistance R63 ground connection，9 feet of power management chip U6 pass through electric capacity C37 ground connection，16 feet of power management chip U6、17 feet meet electric capacity C39 respectively、One end of electric capacity C38，18 feet of power management chip U6、19 feet connect 1 pin of wired output port J2 respectively、Resistance R52、One end of resistance R54、Electric capacity C40、Electric capacity C41、Electric capacity C42、One end of electric capacity C43 and power supply DC+5V，One end of the 2 pin connecting resistance R53 of wired output port J2 and the other end of resistance R54，One end of the other end connecting resistance R51 of resistance R53 and ground，The other end of the other end connecting resistance R52 of resistance R51 and 3 pins of wired output port J2，4 pins of wired output port J2 connect the drain electrode of switching tube Q13、Resistance R71、One end of resistance R73，The source electrode of switching tube Q13 passes through resistance R74 ground connection，7 feet of power management chip U6、12 feet、13 feet、25 feet、Electric capacity C37、Electric capacity C38、Electric capacity C39、Electric capacity C40、Electric capacity C41、Electric capacity C42、Electric capacity C43、The equal ground connection of the other end of resistance R73，Contact TP9 ground connection；The model of power management chip U6 is the model of HE43100, power protection chip U7 is DS7066.
nullMicro controller unit circuit is connected as: 6 feet of MCU control chip U5 respectively with the test point TP3 in detection source、Electric capacity C32 one end、Power supply DC+5V connects，The electric capacity C32 other end and the detection test point TP6 of ground connection、Electric capacity C31、Electric capacity C44 one end and ground connect，7 feet of another termination MCU control chip U5 of electric capacity C31，Electric capacity C44 other end connecting resistance R69 one end、The grid of 8 feet of MCU control chip U5 and portable power source management contactor pipe Q13，Resistance R69 another termination power DC+5V，11 foot connecting resistance R72 one end of MCU control chip U5，13 feet of MCU control chip U5 connect the source electrode of portable power source management circuit portable power source management contactor pipe Q13，14 feet of MCU control chip U5 meet electric capacity C33、One end of resistance R58 and the reference pole of controllable accurate source of stable pressure U8 and negative electrode，The anode of another termination controllable accurate source of stable pressure U8 of electric capacity C33 and ground，Another termination power DC+5V of resistance R58 also connects 19 feet of MCU control chip U5 and the positive pole of portable power source management circuit diode D6 by resistance R56，18 feet of MCU control chip U5 connect the other end of portable power source management circuitous resistance R71，The 20 foot connecting resistance R55 of MCU control chip U5、One end of resistance R76，Another termination power DC+5V of resistance R55，The 3 foot ground connection of MCU control chip U5，Resistance R59 mono-termination power DC+5V，The positive pole of resistance R59 other end sending and receiving optical diode D7 and one end of resistance R41，The other end ground connection of resistance R41，The positive pole of the negative pole sending and receiving optical diode D12 of light emitting diode D7 and 5 feet of MCU control chip U5，The negative pole of light emitting diode D12 passes through resistance R75 ground connection，Contact TP5 connects 8 feet of MCU control chip U5，Contact TP4、Contact TP5 is two test test points.MCU control chip U5 model is MB95F564.
nullWireless charging management modular circuit is connected as: the 1 foot connecting resistance R14 of charge controlling chip U2、One end of resistance R10，40 feet separately meeting one end charge controlling chip U2 of resistance R10 and 16 feet of micro controller unit circuit MCU control chip U5，The other end connecting resistance R15 of resistance R14、Resistance R19、One end of electric capacity C14，2 feet of resistance R15 another termination charge controlling chip U2 and one end of electric capacity C11，The other end ground connection of electric capacity C11，Another 6 feet meeting charge controlling chip U2 of resistance R19 and resistance R21 one end，One end of another termination capacitor C15 of electric capacity C14 and ground，The other end of electric capacity C15 passes through the other end of resistance R22 connecting resistance R21 and 7 feet of charge controlling chip U2，8 feet of charge controlling chip U2 lead up to electric capacity C16 ground connection，Resistance R27 of separately leading up to connects 10 feet of charge controlling chip U2、11 feet，13 feet are met power supply DC+5V and are connect 14 feet and the ground of charge controlling chip U2 by electric capacity C18，15 feet connect 15 feet of micro controller unit circuit MCU control chip U5，Electric capacity C23、Electric capacity C20、One end of resistance R39，Electric capacity C23、The other end ground connection of electric capacity C20，The other end of resistance R39 connects 1 foot of operational amplifier U4 respectively、Resistance R46、Resistance R49、One end of resistance R50，Another of resistance R46 terminates 2 feet of operational amplifier U4 and by resistance R45 ground connection，Resistance R49 another termination operational amplifier U4 6 feet and pass through electric capacity C26 ground connection，Another of resistance R50 terminates 5 feet of operational amplifier U4 and by electric capacity C25 ground connection，3 feet of operational amplifier U4、4 feet are connected in parallel with a capacitor C24，3 foot connecting resistance R48 one end of operational amplifier U4，4 foot ground connection，7 feet connect the other end of resistance R76 in micro controller unit circuit，8 feet meet power supply DC+5V and by electric capacity C21 ground connection，16 feet of charge controlling chip U2、18 feet、25 foot ground connection，17 feet、19 feet、24 feet meet power supply DC+5V，20 feet are leaded up to electric capacity C17 and are connect 22 feet，Diode D2 of separately leading up to meets power supply DC+5V，21 foot connecting resistance R28 one end，23 foot connecting resistance R25 one end，26 foot connecting resistance R18 one end，28 foot connecting resistance R16 one end，29 feet are leaded up to and are met electric capacity C8 mono-and terminate 27 feet of charge controlling chip U2，Diode D1 of separately leading up to meets power supply DC+5V，30 feet are by resistance R12 connecting resistance R7 one end and ground，31 feet of resistance R7 another termination charge controlling chip U2，Resistance R3、Resistance R1、Resistance R4、Electric capacity C1、Electric capacity C2、One end of electric capacity C3 connects 33 feet of power supply DC+5V and charge controlling chip U2 respectively、36 feet，The electric capacity C1 other end connects 32 feet of charge controlling chip U2 and the other end of resistance R4 and ground by electric capacity C6，Electric capacity C2、34 feet of another termination charge controlling chip U2 of electric capacity C3、35 feet and ground，The other end of the 37 foot connecting resistance R1 of charge controlling chip U2 and 1 foot of micro controller unit circuit U 5，The other end of 38 foot connecting resistance R3 and 2 feet of micro controller unit circuit MCU control chip U5，40 feet connect 16 feet of micro controller unit circuit MCU control chip U5.Charge controlling chip U2 is CV90312T wireless charging management microcontroller.
nullWireless transmitting unit circuit is connected as: switching tube Q1、Q5、The drain electrode of Q9 connects and connects 27 feet of charge controlling chip U2 in wireless charging management modular circuit，Switching tube Q1、The source electrode of switching tube Q2 connects and one end of connecting resistance R2，Switching tube Q1、The grid of switching tube Q2 connects and one end of the other end of connecting resistance R2 and resistance R5，The colelctor electrode of another termination audion Q3 of resistance R5，The base stage connecting resistance R8 of audion Q3、One end of resistance R9，The emitter stage of another termination audion Q3 of resistance R8，The colelctor electrode of another termination audion Q4 of resistance R9，The base stage connecting resistance R11 of audion Q4、One end of resistance R13，10 feet of another termination micro controller unit circuit MCU control chip U5 of resistance R11，The emitter stage of another termination audion Q4 of resistance R13 and ground，Switching tube Q5、The source electrode of switching tube Q6 connects and one end of connecting resistance R17，Switching tube Q5、The grid of switching tube Q6 connects and one end of the other end of connecting resistance R17 and resistance R20，The colelctor electrode of another termination audion Q7 of resistance R20，The base stage connecting resistance R23 of audion Q7、One end of resistance R24，The emitter stage of another termination audion Q7 of resistance R23，The colelctor electrode of another termination audion Q8 of resistance R24，The base stage connecting resistance R26 of audion Q8、One end of resistance R29，9 feet of another termination MCU control chip U5 of resistance R26，The emitter stage of another termination audion Q8 of resistance R29 and ground，Switching tube Q9、The source electrode of switching tube Q10 connects and one end of connecting resistance R31，Switching tube Q9、The grid of switching tube Q10 connects and one end of the other end of connecting resistance R31 and resistance R34，The colelctor electrode of another termination audion Q11 of resistance R34，The base stage connecting resistance R35 of audion Q11、One end of resistance R36，The other end of resistance R35 meets audion Q11 respectively、Audion Q3、29 feet of charge controlling chip U2 in the emitter stage of audion Q7 and wireless charging management modular circuit，The colelctor electrode of another termination audion Q12 of resistance R36，The base stage connecting resistance R40 of audion Q12、One end of resistance R44，4 feet of another termination micro controller unit circuit MCU control chip U5 of resistance R40，The emitter stage of another termination audion Q12 of resistance R44 and ground，Electric capacity C9、Electric capacity C10、Electric capacity C12、Electric capacity C13 is in parallel，One end of electric capacity C10 meets inductance CL1 respectively、Inductance CL2、Inductance CL3、Resistance R38、One end of electric capacity C7，Another termination micro controller unit circuitous resistance R72 other end of electric capacity C10，The drain electrode of another termination switching tube Q2 of inductance CL1，The drain electrode of another termination switching tube Q6 of inductance CL2，The drain electrode of another termination switching tube Q10 of inductance CL3，The other end of resistance R38 passes through diode D3 connecting resistance R43、Electric capacity C19、One end of electric capacity C22，Electric capacity C19 other end connecting resistance R37、12 feet of one end of resistance R42 and wireless charging management modular circuit electric control chip U2，Resistance R37 another termination power DC+5V，Resistance R42、Electric capacity C22、The other end ground connection of resistance R43，The other end of electric capacity C7 passes through resistance R6 connecting resistance R30、The positive pole of diode D13，The negative pole connecting resistance R33 of diode D13、One end of electric capacity C34 and 12 feet of micro controller unit circuit MCU control chip U5，Resistance R30、Resistance R33、The other end ground connection of electric capacity C34，1 foot of drive circuit U1 connects 7 feet of drive circuit U3、8 feet、Switching tube Q1、Switching tube Q5、27 feet of the grid of switching tube Q9 and wireless charging management modular circuit charge controlling chip U2，3 feet of drive circuit U1 connect 5 feet of drive circuit U3、6 feet、22 feet of the other end of electric capacity C10 and wireless charging management modular circuit charge controlling chip U2，5 feet of drive circuit U1、6 feet、7 feet、8 feet meet electric capacity C4、One end of electric capacity C5 and power supply DC+5V，Electric capacity C4、The other end ground connection of electric capacity C5，1 foot 3 foot of drive circuit U3 is by resistance R32 ground connection the other end meeting wireless charging management modular circuit resistance R48，2 feet of drive circuit U1 connect the wireless charging management modular circuit resistance R16 other end，4 feet of drive circuit U1 connect the wireless charging management modular circuit resistance R28 other end，2 feet of drive circuit U3 connect the wireless charging management modular circuit resistance R18 other end，4 feet of drive circuit U3 connect the wireless charging management modular circuit resistance R25 other end，1 mouthful of connecting resistance R65 of interface J3、One end of electric capacity C45 and 17 feet of micro controller unit circuit MCU control chip U5，Resistance R65 another termination power DC+5V，The other end of electric capacity C45 is connected with 2 mouthfuls of interface J3 and ground respectively.Drive circuit U1, drive circuit U3 are the double; two N-channel field effect transistor of AO4800.
A kind of charging method of mobile wireless charger baby circuit, step is as follows:
Wireless charging receiving sheet is attached by mobile phone USB interface and mobile phone, wireless charging receiving sheet posts on charger baby housing, the transmitting coil of the coiler part alignment wireless transmitting unit circuit of wireless charging receiving sheet and inductance CL1, inductance CL2, inductance CL3, both are close, and distance is less than 6mm.
nullAs inductance CL1、Inductance CL2、Time in inductance CL3 by DC current，Only present the fixing magnetic line of force about，Do not change over time，When at inductance CL1、Inductance CL2、Time in inductance CL3 coil by alternating current，The magnetic line of force of time to time change will be presented about，The magnetic line of force of change can produce induced potential at coil two ends，This induced potential is equivalent to one " new power "，Around this principle，By two drive circuit U1 in circuit、Drive circuit U3 forms inverter bridge drive circuit，Control by charge controlling chip U2，Make the inductance CL1 in circuit、Inductance CL2、The time dependent magnetic line of force is produced around tri-transmitting coils of inductance CL3，When the coil of the equipment of reception is within the scope of this time dependent magnetic line of force，Induced potential will be produced at coil two ends by electromagnetic induction，Produce electric current，Power supply is provided to mobile phone by the blank film of mobile phone or use wireless charging receiving sheet.
Voltage in circuit is detected by voltage detecting circuit in the circuit of portable power source management simultaneously constantly; to crossing stream; short circuit; the phenomenon overcharged carries out power-off protection, to also under battery core charged state, when using wireless charging output; ensure that electric energy equilibrium assignment is to battery core and output winding; and the needs of wireless charging are preferentially ensured when electricity shortage, when using battery core to power to wired output and wireless output simultaneously, preferential ensure being normally carried out of wireless charging.
When only using wired charging, export to charging mobile phone battery by wired output port J2, and by resistance R74(0.05ohm) detect charging current and feed back to MCU control chip U5, MCU control chip U5 is by the charge condition of 18 foot LOADIN and two signal end monitoring mobile phones constantly of 13 foot CURUSB, the change of induction charging voltage when MCU control chip U5 is flat, by switching tube Q13, wired output port J2 is controlled, when fully charged, cut off wired output port J2 charging, it is prevented that over-charging of battery and cause danger.
When using external adapter to power; the battery core electricity that the 10 foot VBAT ends according to power management chip U6 detect; by the internal calculation of power management module; under ensureing the premise that wireless charging port charges normal; distribute to battery core, charge for battery core, the overcurrent-overvoltage of battery core is protected simultaneously; in hardware protection, add power protection chip U7, power protection chip U7 undertaken overcharging/discharge prevention by detecting 4 foot VCC or 6 foot VM terminal voltages.When having served as the generation of charge/discharge protective condition, built-in field effect transistor is become cut-off from conducting, thus charge/discharge process stops.
The present invention has the wireless output (three transmitting coils) of the A-USB delivery outlet J2 and a 1A of the microUSB input port J1, a 2A of a 2A, the wired output 2.4A of the highest support, wireless output 1A.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some improvement, and these improvement also should be regarded as protection scope of the present invention.
Claims (6)
- null1. a mobile wireless charger baby circuit，Including charger baby housing，It is characterized in that: also include the charger baby circuit being arranged in charger baby housing，Described charger baby circuit includes portable power source management circuit、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、Wireless charging receiving sheet，Described portable power source management 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 connects，Described micro controller unit circuit manages circuit with portable power source respectively、Wireless charging control circuit connects，Wireless charging control circuit is connected with wireless transmitting unit circuit，Described battery core is connected with power protection chip U7，Described wireless charging receiving sheet posts on charger baby housing，Wireless charging receiving sheet receives the magnetic line of force signal of wireless transmitting unit circuit.
- null2. a kind of mobile wireless charger baby circuit according to claim 1，It is characterized in that: described portable power source management circuit is connected as: shunt capacitance C27 between 1 pin and 5 pins of external power supply USB port J1、Electric capacity C28，2 pins connect power supply and bear，3 pins are just connecing power supply，4 pins、5 pin ground connection，1 pin connects 20 feet of power management chip U6、21 feet and input voltage positive pole VDD5V，1 foot of power protection chip U7、2 feet、3 feet connect one end of electric capacity C30 and the negative pole of contact TP7 and battery core respectively，4 feet of another termination power management chip U7 of electric capacity C30 and one end of resistance R62，The other end of resistance R62 meets electric capacity C35 respectively、Electric capacity C36、One end of resistance R60、10 feet of power management chip U6、The positive pole of contact TP8 and battery core and light emitting diode D8、Light emitting diode D9、Light emitting diode D10、The positive pole of the positive pole of light emitting diode D11 and BAT and battery core，Electric capacity C35、Electric capacity C36 other end ground connection，The negative pole of light emitting diode D8 connects 2 feet of power management chip U6 by resistance R66，The negative pole of light emitting diode D9 connects 1 foot of power management chip U6 by resistance R67，The negative pole of light emitting diode D10 connects 24 feet of power management chip U6 by resistance R68，The negative pole of light emitting diode D11 connects 23 feet of power management chip U6 by resistance R70，6 feet of power protection chip U7 connect 7 feet of power protection chip U7 by resistance R61、8 feet and ground，Another termination capacitor C46 of resistance R60、One end of inductance L1 and 11 feet of power management chip U6，The other end ground connection of electric capacity C46，One end of another termination capacitor C29 of inductance L1 and 14 feet of power management chip U6、15 feet，22 feet of another termination power management chip U6 of electric capacity C29，One end of the 4 foot connecting resistance R57 of power management chip U6 and the positive pole of diode D4，Another termination BAT and battery core positive pole of resistance R57，The negative pole of diode D4 connects one end of switch K1 and the negative pole of diode D6，The other end ground connection of switch K1，8 feet of power management chip U6 connecting resistance R47 respectively、One end of resistance R64，Resistance R47 other end ground connection，The other end of resistance R64 passes through resistance R63 ground connection，9 feet of power management chip U6 pass through electric capacity C37 ground connection，16 feet of power management chip U6、17 feet meet electric capacity C39 respectively、One end of electric capacity C38，18 feet of power management chip U6、19 feet connect 1 pin of wired output port J2 respectively、Resistance R52、One end of resistance R54、Electric capacity C40、Electric capacity C41、Electric capacity C42、One end of electric capacity C43 and power supply DC+5V，One end of the 2 pin connecting resistance R53 of wired output port J2 and the other end of resistance R54，One end of the other end connecting resistance R51 of resistance R53 and ground，The other end of the other end connecting resistance R52 of resistance R51 and 3 pins of wired output port J2，4 pins of wired output port J2 connect the drain electrode of switching tube Q13、Resistance R71、One end of resistance R73，The source electrode of switching tube Q13 passes through resistance R74 ground connection，7 feet of power management chip U6、12 feet、13 feet、25 feet、Electric capacity C37、Electric capacity C38、Electric capacity C39、Electric capacity C40、Electric capacity C41、Electric capacity C42、Electric capacity C43、The equal ground connection of the other end of resistance R73，Contact TP9 ground connection；The model of power management chip U6 is the model of HE43100, power protection chip U7 is DS7066.
- null3. a kind of mobile wireless charger baby circuit according to claim 1，It is characterized in that: described micro controller unit circuit is connected as: 6 feet of MCU control chip U5 respectively with the test point TP3 in detection source、Electric capacity C32 one end、Power supply DC+5V connects，The electric capacity C32 other end and the detection test point TP6 of ground connection、Electric capacity C31、Electric capacity C44 one end and ground connect，7 feet of another termination MCU control chip U5 of electric capacity C31，Electric capacity C44 other end connecting resistance R69 one end、The grid of 8 feet of MCU control chip U5 and portable power source management contactor pipe Q13，Resistance R69 another termination power DC+5V，11 foot connecting resistance R72 one end of MCU control chip U5，13 feet of MCU control chip U5 connect the source electrode of portable power source management circuit portable power source management contactor pipe Q13，14 feet of MCU control chip U5 meet electric capacity C33、One end of resistance R58 and the reference pole of controllable accurate source of stable pressure U8 and negative electrode，The anode of another termination controllable accurate source of stable pressure U8 of electric capacity C33 and ground，Another termination power DC+5V of resistance R58 also connects 19 feet of MCU control chip U5 and the positive pole of portable power source management circuit diode D6 by resistance R56，18 feet of MCU control chip U5 connect the other end of portable power source management circuitous resistance R71，The 20 foot connecting resistance R55 of MCU control chip U5、One end of resistance R76，Another termination power DC+5V of resistance R55，The 3 foot ground connection of MCU control chip U5，Resistance R59 mono-termination power DC+5V，The positive pole of resistance R59 other end sending and receiving optical diode D7 and one end of resistance R41，The other end ground connection of resistance R41，The positive pole of the negative pole sending and receiving optical diode D12 of light emitting diode D7 and 5 feet of MCU control chip U5，The negative pole of light emitting diode D12 passes through resistance R75 ground connection，Contact TP5 connects 8 feet of MCU control chip U5；MCU control chip U5 model is MB95F564.
- null4. a kind of mobile wireless charger baby circuit according to claim 1，It is characterized in that: described wireless charging management modular circuit is connected as: the 1 foot connecting resistance R14 of charge controlling chip U2、One end of resistance R10，40 feet separately meeting one end charge controlling chip U2 of resistance R10 and 16 feet of micro controller unit circuit MCU control chip U5，The other end connecting resistance R15 of resistance R14、Resistance R19、One end of electric capacity C14，2 feet of resistance R15 another termination charge controlling chip U2 and one end of electric capacity C11，The other end ground connection of electric capacity C11，Another 6 feet meeting charge controlling chip U2 of resistance R19 and resistance R21 one end，One end of another termination capacitor C15 of electric capacity C14 and ground，The other end of electric capacity C15 passes through the other end of resistance R22 connecting resistance R21 and 7 feet of charge controlling chip U2，8 feet of charge controlling chip U2 lead up to electric capacity C16 ground connection，Resistance R27 of separately leading up to connects 10 feet of charge controlling chip U2、11 feet，13 feet are met power supply DC+5V and are connect 14 feet and the ground of charge controlling chip U2 by electric capacity C18，15 feet connect 15 feet of micro controller unit circuit MCU control chip U5，Electric capacity C23、Electric capacity C20、One end of resistance R39，Electric capacity C23、The other end ground connection of electric capacity C20，The other end of resistance R39 connects 1 foot of operational amplifier U4 respectively、Resistance R46、Resistance R49、One end of resistance R50，Another of resistance R46 terminates 2 feet of operational amplifier U4 and by resistance R45 ground connection，Resistance R49 another termination operational amplifier U4 6 feet and pass through electric capacity C26 ground connection，Another of resistance R50 terminates 5 feet of operational amplifier U4 and by electric capacity C25 ground connection，3 feet of operational amplifier U4、4 feet are connected in parallel with a capacitor C24，3 foot connecting resistance R48 one end of operational amplifier U4，4 foot ground connection，7 feet connect the other end of resistance R76 in micro controller unit circuit，8 feet meet power supply DC+5V and by electric capacity C21 ground connection，16 feet of charge controlling chip U2、18 feet、25 foot ground connection，17 feet、19 feet、24 feet meet power supply DC+5V，20 feet are leaded up to electric capacity C17 and are connect 22 feet，Diode D2 of separately leading up to meets power supply DC+5V，21 foot connecting resistance R28 one end，23 foot connecting resistance R25 one end，26 foot connecting resistance R18 one end，28 foot connecting resistance R16 one end，29 feet are leaded up to and are met electric capacity C8 mono-and terminate 27 feet of charge controlling chip U2，Diode D1 of separately leading up to meets power supply DC+5V，30 feet are by resistance R12 connecting resistance R7 one end and ground，31 feet of resistance R7 another termination charge controlling chip U2，Resistance R3、Resistance R1、Resistance R4、Electric capacity C1、Electric capacity C2、One end of electric capacity C3 connects 33 feet of power supply DC+5V and charge controlling chip U2 respectively、36 feet，The electric capacity C1 other end connects 32 feet of charge controlling chip U2 and the other end of resistance R4 and ground by electric capacity C6，Electric capacity C2、34 feet of another termination charge controlling chip U2 of electric capacity C3、35 feet and ground，The other end of the 37 foot connecting resistance R1 of charge controlling chip U2 and 1 foot of micro controller unit circuit U 5，The other end of 38 foot connecting resistance R3 and 2 feet of micro controller unit circuit MCU control chip U5，40 feet connect 16 feet of micro controller unit circuit MCU control chip U5；Charge controlling chip U2 is CV90312T wireless charging management microcontroller.
- null5. a kind of mobile wireless charger baby circuit according to claim 1，It is characterized in that: described wireless transmitting unit circuit is connected as: switching tube Q1、Q5、The drain electrode of Q9 connects and connects 27 feet of charge controlling chip U2 in wireless charging management modular circuit，Switching tube Q1、The source electrode of switching tube Q2 connects and one end of connecting resistance R2，Switching tube Q1、The grid of switching tube Q2 connects and one end of the other end of connecting resistance R2 and resistance R5，The colelctor electrode of another termination audion Q3 of resistance R5，The base stage connecting resistance R8 of audion Q3、One end of resistance R9，The emitter stage of another termination audion Q3 of resistance R8，The colelctor electrode of another termination audion Q4 of resistance R9，The base stage connecting resistance R11 of audion Q4、One end of resistance R13，10 feet of another termination micro controller unit circuit MCU control chip U5 of resistance R11，The emitter stage of another termination audion Q4 of resistance R13 and ground，Switching tube Q5、The source electrode of switching tube Q6 connects and one end of connecting resistance R17，Switching tube Q5、The grid of switching tube Q6 connects and one end of the other end of connecting resistance R17 and resistance R20，The colelctor electrode of another termination audion Q7 of resistance R20，The base stage connecting resistance R23 of audion Q7、One end of resistance R24，The emitter stage of another termination audion Q7 of resistance R23，The colelctor electrode of another termination audion Q8 of resistance R24，The base stage connecting resistance R26 of audion Q8、One end of resistance R29，9 feet of another termination MCU control chip U5 of resistance R26，The emitter stage of another termination audion Q8 of resistance R29 and ground，Switching tube Q9、The source electrode of switching tube Q10 connects and one end of connecting resistance R31，Switching tube Q9、The grid of switching tube Q10 connects and one end of the other end of connecting resistance R31 and resistance R34，The colelctor electrode of another termination audion Q11 of resistance R34，The base stage connecting resistance R35 of audion Q11、One end of resistance R36，The other end of resistance R35 meets audion Q11 respectively、Audion Q3、29 feet of charge controlling chip U2 in the emitter stage of audion Q7 and wireless charging management modular circuit，The colelctor electrode of another termination audion Q12 of resistance R36，The base stage connecting resistance R40 of audion Q12、One end of resistance R44，4 feet of another termination micro controller unit circuit MCU control chip U5 of resistance R40，The emitter stage of another termination audion Q12 of resistance R44 and ground，Electric capacity C9、Electric capacity C10、Electric capacity C12、Electric capacity C13 is in parallel，One end of electric capacity C10 meets inductance CL1 respectively、Inductance CL2、Inductance CL3、Resistance R38、One end of electric capacity C7，Another termination micro controller unit circuitous resistance R72 other end of electric capacity C10，The drain electrode of another termination switching tube Q2 of inductance CL1，The drain electrode of another termination switching tube Q6 of inductance CL2，The drain electrode of another termination switching tube Q10 of inductance CL3，The other end of resistance R38 passes through diode D3 connecting resistance R43、Electric capacity C19、One end of electric capacity C22，Electric capacity C19 other end connecting resistance R37、12 feet of one end of resistance R42 and wireless charging management modular circuit electric control chip U2，Resistance R37 another termination power DC+5V，Resistance R42、Electric capacity C22、The other end ground connection of resistance R43，The other end of electric capacity C7 passes through resistance R6 connecting resistance R30、The positive pole of diode D13，The negative pole connecting resistance R33 of diode D13、One end of electric capacity C34 and 12 feet of micro controller unit circuit MCU control chip U5，Resistance R30、Resistance R33、The other end ground connection of electric capacity C34，1 foot of drive circuit U1 connects 7 feet of drive circuit U3、8 feet、Switching tube Q1、Switching tube Q5、27 feet of the grid of switching tube Q9 and wireless charging management modular circuit charge controlling chip U2，3 feet of drive circuit U1 connect 5 feet of drive circuit U3、6 feet、22 feet of the other end of electric capacity C10 and wireless charging management modular circuit charge controlling chip U2，5 feet of drive circuit U1、6 feet、7 feet、8 feet meet electric capacity C4、One end of electric capacity C5 and power supply DC+5V，Electric capacity C4、The other end ground connection of electric capacity C5，1 foot 3 foot of drive circuit U3 is by resistance R32 ground connection the other end meeting wireless charging management modular circuit resistance R48，2 feet of drive circuit U1 connect the wireless charging management modular circuit resistance R16 other end，4 feet of drive circuit U1 connect the wireless charging management modular circuit resistance R28 other end，2 feet of drive circuit U3 connect the wireless charging management modular circuit resistance R18 other end，4 feet of drive circuit U3 connect the wireless charging management modular circuit resistance R25 other end，1 mouthful of connecting resistance R65 of interface J3、One end of electric capacity C45 and 17 feet of micro controller unit circuit MCU control chip U5，Resistance R65 another termination power DC+5V，The other end of electric capacity C45 is connected with 2 mouthfuls of interface J3 and ground respectively；Drive circuit U1, drive circuit U3 are the double; two N-channel field effect transistor of AO4800.
- 6. the charging method adopting mobile wireless charger baby circuit according to claim 1, it is characterized in that: step is as follows, wireless charging receiving sheet is attached by mobile phone USB interface and mobile phone, wireless charging receiving sheet posts on charger baby housing, the transmitting coil of the coiler part alignment wireless transmitting unit circuit of wireless charging receiving sheet and inductance CL1, inductance CL2, inductance CL3, both are close, and distance is less than 6mm；nullAs inductance CL1、Inductance CL2、Time in inductance CL3 by DC current，Only present the fixing magnetic line of force about，Do not change over time，When at inductance CL1、Inductance CL2、Time in inductance CL3 coil by alternating current，The magnetic line of force of time to time change will be presented about，The magnetic line of force of change can produce induced potential at coil two ends，This induced potential is equivalent to a new power，By two drive circuit U1 in circuit、Drive circuit U3 forms inverter bridge drive circuit，Control by charge controlling chip U2，Make the inductance CL1 in circuit、Inductance CL2、The time dependent magnetic line of force is produced around tri-transmitting coils of inductance CL3，When the coil of the equipment of reception is within the scope of this time dependent magnetic line of force，Induced potential will be produced at coil two ends by electromagnetic induction，Produce electric current，Power supply is provided to mobile phone by the blank film of mobile phone or use wireless charging receiving sheet；Voltage in circuit is detected by voltage detecting circuit in the circuit of portable power source management simultaneously constantly; to crossing stream; short circuit; the phenomenon overcharged carries out power-off protection, to also under battery core charged state, when using wireless charging output; ensure that electric energy equilibrium assignment is to battery core and output winding; and the needs of wireless charging are preferentially ensured when electricity shortage, when using battery core to power to wired output and wireless output simultaneously, preferential ensure being normally carried out of wireless charging；When only using wired charging, export to charging mobile phone battery by wired output port J2, and feed back to MCU control chip U5 by resistance R74 detection charging current, the change of MCU control chip U5 induction charging voltage constantly, by switching tube Q13, wired output port J2 is controlled, when fully charged, cut off the charging of wired output port J2, it is prevented that battery of mobile phone overcharges and causes danger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610271754.XA CN105811511B (en) | 2016-04-28 | 2016-04-28 | A kind of mobile wireless charger baby circuit and charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610271754.XA CN105811511B (en) | 2016-04-28 | 2016-04-28 | A kind of mobile wireless charger baby circuit and charging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105811511A true CN105811511A (en) | 2016-07-27 |
| CN105811511B CN105811511B (en) | 2018-09-11 |
Family
ID=56458837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610271754.XA Expired - Fee Related CN105811511B (en) | 2016-04-28 | 2016-04-28 | A kind of mobile wireless charger baby circuit and charging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105811511B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-04-28 CN CN201610271754.XA patent/CN105811511B/en not_active Expired - Fee Related
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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105811511B (en) | 2018-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203813481U (en) | Mobile power source capable of automatically recognizing terminals to charge terminals and adapting to OTG systems of terminals | |
| CN202818413U (en) | Mobile phone protective casing | |
| CN205657456U (en) | Remove wireless precious circuit that charges | |
| CN104410126B (en) | Electric automobile and vehicle-mounted charger and vehicle-mounted DC/DC integrated systems | |
| CN101982922A (en) | Wireless charging device for mobile phone | |
| CN103595084A (en) | Mobile power source having wireless charging and discharging functions | |
| CN105811511A (en) | Wireless mobile power pack circuit and charging method | |
| CN203377652U (en) | A mobile power source with a sound prompt function | |
| CN103390912B (en) | A kind of method of charger Auto-Sensing and distribution electric current | |
| CN105539083B (en) | vehicle-mounted humidifier | |
| CN205811595U (en) | A kind of fully charged after automatically power off smart mobile phone charging bodyguard's circuit | |
| CN204012788U (en) | Portable integrated portable power source | |
| CN206293924U (en) | Portable power source | |
| CN203434700U (en) | Multifunctional electronic-cigarette wireless charging device and electronic cigarette | |
| CN113078723B (en) | Two-way quick-charging and quick-discharging two-in-one power supply | |
| CN201904661U (en) | Wireless charging device | |
| CN115441723A (en) | Power supply conversion device | |
| CN203911552U (en) | Mobile power supply device | |
| CN203027000U (en) | Novel intelligent multipurpose mobile power supply | |
| CN105720667A (en) | Wireless charging equipment with Lighting interface and USB interface | |
| CN206370942U (en) | A kind of Baffle Box of Bluetooth charged based on USB | |
| CN205583786U (en) | Wireless charging equipment with lighting interface and USB interface | |
| CN204698051U (en) | A kind of luggage case inserting charging for hotspot | |
| CN205921406U (en) | Wall charges | |
| CN204597587U (en) | A kind of uninterrupted wireless charging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 Termination date: 20190428 |