CN209709704U - A kind of wireless charger with display function - Google Patents
A kind of wireless charger with display function Download PDFInfo
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- CN209709704U CN209709704U CN201920013565.1U CN201920013565U CN209709704U CN 209709704 U CN209709704 U CN 209709704U CN 201920013565 U CN201920013565 U CN 201920013565U CN 209709704 U CN209709704 U CN 209709704U
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Abstract
The utility model discloses a kind of wireless chargers with display function, comprising: host and the master control pcb board being arranged in inside the host；Power input socket, voltage ADC sampling module, electric current ADC sampling module, MCU programmable chip, digital display screen, PWM control module and electric energy transmitting coil are provided on the master control pcb board；Charging voltage and charging current are obtained by the voltage ADC sampling module and electric current ADC sampling module, pass through MCU programmable chip and digital display screen, these electrical parameters of electric current when checking charging, voltage, power, capacity can be monitored in real time the number of charging rate and rechargeable energy judged, and pass through digital display screen real time inspection, it provides convenience for the use of people, rechargeable battery pack is set using family and can charge whenever and wherever possible.
Description
Technical field
The utility model relates to wireless charging technical field, in particular to a kind of wireless charger with display function.
Background technique
The various mobile digital equipment released currently on the market, for example, it is smart phone, tablet computer, children's wrist-watch, hand-held
Laser range finder, the product for surveying chargeable battery built in mu instrument etc., these be all industrial production and people's daily life nearly all from
The equipment that do not open, and these equipment pass through connection mode mostly and charge, and bring many inconvenience when in use.Wirelessly
The appearance of charging modes compensates for the deficiency of wired charging, provides more conveniences for user, wireless charging mode becomes
The charging modes of the following mainstream are inevitable trend.
And some wireless chargers on current market in use, can not know specific charging rate in charging process,
Situations such as voltage, electric current, power, brings inconvenience to user, and the mode by then passing through electromagnetic induction charges,
The electromagnetic radiation that wireless charger issues also has a certain impact to human body, and especially charging rate is faster, the electromagnetism spoke of generation
Penetrate also just bigger, the influence to human body is also just bigger, so reducing the electromagnetic radiation generated when wireless charger charging to reduce
The harm of human body should more be focused on；In addition to this, although wireless charger, also it is for wireless charger confession
The battery charging of the electric wireless electron equipment of ability, use when can not move outdoors are not able to satisfy people and carry out whenever and wherever possible
The demand of charging.
Therefore, can provide it is a kind of can understand at any time in charging charge volume number, the speed of charging rate and drop
Low emissivity is reduced to body effect, and can carry out wireless charging anywhere or anytime is asking for those skilled in the art's urgent need to resolve
Topic.
Thus the prior art could be improved and improve.
Utility model content
Place in view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of nothings with display function
Electric current, the electricity when checking charging can be monitored in real time by the setting of MCU programmable chip and digital display screen in line charge electric appliance
These electrical parameters of pressure, power, capacity, to can determine whether the number of charging rate and rechargeable energy.
In order to solve the above technical problems, the utility model takes following technical scheme:
A kind of wireless charger with display function comprising: host and the master control PCB being arranged in inside the host
Plate；
Be provided on the master control pcb board power input socket, voltage ADC sampling module, electric current ADC sampling module,
MCU programmable chip, digital display screen, PWM control module and electric energy transmitting coil；
The input terminal connection of the power input socket and the voltage ADC sampling module；The voltage ADC sampling
The input terminal connection of first output end of module and the electric current ADC sampling module；The of the electric current ADC sampling module
The input terminal connection of one output end and the PWM control module；
The output end of the PWM control module and the electric energy transmitting coil connection；The voltage ADC samples mould
The second output terminal of block is connect with the MCU programmable chip respectively with the second output terminal of the electric current ADC sampling module；Institute
The input terminal for stating digital display screen is connect with the MCU programmable chip.
It is additionally provided on the master control pcb board: Voltage stabilizing module, the input of the power input socket and the Voltage stabilizing module
End connection；The output end of the Voltage stabilizing module is programmable with the input terminal of the voltage ADC sampling module and the MCU respectively
Chip connection.
It is additionally provided on the master control pcb board: mobile power source input port, the mobile power source input port and the pressure stabilizing mould
The input terminal of block connects.
It as the improvement one of the utility model, is additionally provided on the master control pcb board: fast charge trigger and fast charge voltage
Sampling module, the input terminal of the fast charge trigger are connect with the MCU programmable chip, the output end of the fast charge trigger
It is connect respectively with the power input socket and the mobile power source input port；The input terminal of the fast charge voltage sampling module
It is connect respectively with the power input socket and the mobile power source input port, the output end of the fast charge voltage sampling module
It is connect with the MCU programmable chip.
As the improvement two of the utility model, the PWM control module include: wireless charging control chip, first resistor,
Second resistance, first capacitor, the second capacitor, third capacitor, the 4th capacitor, the 5th capacitor, the 6th capacitor, the 7th capacitor, the 8th
Capacitor, the 9th capacitor and the tenth capacitor, the PWM1 of the PWM1 foot connection MCU programmable chip of the wireless charging control chip
Foot, the PWM2 foot of the PWM2 foot connection MCU programmable chip of the wireless charging control chip, the wireless charging control chip
ISNS foot connect electric current ADC sampling module, the wireless charging control chip EN foot connection MCU programmable chip EN
Foot, one end of the SW1 foot connection electric energy transmitting coil interface of the wireless charging control chip connect nothing also by first capacitor
The BST1 foot of line charge controlling chip also passes through the second capacity earth, and the SW2 foot of wireless charging control chip passes through third capacitor
Connect the BST2 foot of wireless charging control chip, also by the 4th capacity earth, also by the 5th capacitance connection electric energy emission lines
The other end of interface is enclosed, the 6th capacitor, the 7th capacitor, the 8th capacitor, the 9th capacitor, the tenth capacitor and the 5th capacitor are simultaneously
Connection.
As the improvement three of the utility model, the electric current ADC sampling module includes current sample chip, the one or two pole
Pipe, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance,
11 resistance, the 11st capacitor, the 12nd capacitor, the 13rd capacitor and the 14th capacitor, the ENB foot of the current sample chip
The SEL foot of MCU programmable chip is connected, the VCC foot of current sample chip connects A5V feeder ear, the A1 foot of current sample chip
Connect the 11st capacitor one end, also by 3rd resistor connection MCU programmable chip VREF foot, the 11st capacitor it is another
End connects the VREF foot of MCU programmable chip by the 5th resistance and connects the ISEN of MCU programmable chip by the 6th resistance
One end of foot and the 13rd capacitor also passes through the 12nd capacity earth, the other end ground connection of the 13rd capacitor, current sample chip
A2 foot by the 4th resistance connect MCU programmable chip VREF foot, also by the 9th resistance eutral grounding, also pass sequentially through the 7th
The anode of the cathode of resistance, the 14th capacitance connection first diode, first diode connects electric energy transmitting by the 8th resistance
The other end of coil interface, the B foot of current sample chip connected by eleventh resistor MCU programmable chip OPA-P foot,
Pass through the 14th capacity earth.
As the improvement four of the utility model, the voltage ADC sampling module include the second diode, twelfth resistor,
Thirteenth resistor, the 14th resistance, the 15th capacitor and the 16th capacitor, the anode connection electric energy transmitting of second diode
The other end of coil interface, the cathode of the second diode connect one end and the 15th electricity of thirteenth resistor by twelfth resistor
One end of appearance, the NC foot of the other end connection MCU programmable chip of thirteenth resistor, also by the 14th resistance eutral grounding, it is also logical
Cross the 16th capacity earth.
As the improvement five of the utility model, the fast charge voltage sampling module include: the first metal-oxide-semiconductor, the second metal-oxide-semiconductor,
Third metal-oxide-semiconductor, the 15th resistance, the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance, the 20th resistance,
The grid connection MCU of 21st resistance, the 22nd resistance, the 17th capacitor and the 18th capacitor, first metal-oxide-semiconductor can
Program chip the 11st foot, also by the 17th capacitance connection A5V feeder ear and the 17th resistance one end, also pass through the tenth
Five resistance eutral groundings, the drain electrode of the first metal-oxide-semiconductor connect D+ foot, the 17th resistance of mobile power source input port by the 16th resistance
The other end and the 18th resistance one end, the source electrode ground connection of the other end of the 18th resistance and the first metal-oxide-semiconductor, described second
13rd foot of the grid connection MCU programmable chip of metal-oxide-semiconductor, the one of drain electrode the 19th resistance of connection of second metal-oxide-semiconductor
End, the drain electrode of the other end connection third metal-oxide-semiconductor of the 19th resistance connect A5V feeder ear also by the 20th resistance, also pass through
22nd resistance connects the D- foot of mobile power source input port, and the of the grid connection MCU programmable chip of the third metal-oxide-semiconductor
14 feet, also by the 18th capacitance connection A5V feeder ear, also by the 21st resistance eutral grounding, the drain electrode of second metal-oxide-semiconductor
One end of the 19th resistance is connected, the other end of the 19th resistance connects A5V feeder ear by the 20th resistance, also by second
12 resistance connect the D- foot of mobile power source input port, and the drain electrode of the second metal-oxide-semiconductor and the drain electrode of third metal-oxide-semiconductor are grounded.
As the improvement six of the utility model, it is additionally provided on the master control pcb board: buzzing alarming horn and LED indication
Lamp；The BUZZER foot of the buzzing alarming horn connection MCU programmable chip, the LED light can be compiled with the MCU respectively
Journey chip connects LED1 foot and LED2 foot.
As the improvement seven of the utility model, battery pack, voltage ADC sampling module, electric current are also set up on the pcb board
ADC sampling module, MCU programmable chip, digital display screen, PWM control module, electric energy transmitting coil, mobile power source input port,
Voltage stabilizing module, fast charge trigger, fast charge voltage sampling module are supplied by the power input socket and/or the battery pack
Electricity.
Compared to the prior art, the wireless charger provided by the utility model with display function is adopted by the voltage ADC
Egf block and electric current ADC sampling module obtain charging voltage and charging current, by MCU programmable chip and digital display screen,
The data such as electric current, voltage, power, the capacity when checking charging can be monitored in real time, provide convenience for the use of people, simultaneously
The constraint that data line can be got rid of by the way of the power supply of built-in rechargeable battery group, can carry out mobile wireless charging modes at any time
Wireless charger.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the wireless charger provided by the utility model with display function.
Fig. 2 is the structural block diagram of the wireless charger provided by the utility model with display function.
Fig. 3 is the MCU programmable chip and its periphery electricity of the wireless charger provided by the utility model with display function
The circuit diagram on road and horn module.
Fig. 4 is mobile power source input port and the Voltage stabilizing module of the wireless charger provided by the utility model with display function
Circuit diagram.
Fig. 5 is the circuit diagram of the PWM control module of the wireless charger provided by the utility model with display function.
Fig. 6 is that the circuit of the electric current ADC sampling module of the wireless charger provided by the utility model with display function is former
Reason figure.
Fig. 7 is that the circuit of the voltage ADC sampling module of the wireless charger provided by the utility model with display function is former
Reason figure.
Fig. 8 is the circuit theory of the fast charge sampling module of the wireless charger provided by the utility model with display function
Figure.
Fig. 9 is the circuit diagram of the digital display screen of the wireless charger provided by the utility model with display function.
Figure 10 is the digital display screen interface atlas of the utility model.
Figure 11 is the extension extension product figure of the utility model.
Figure 12 is the extension extension product figure of the utility model.
Figure 13 is the extension extension product figure of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to Figures 1 and 2, provided by the utility model to be shown and the QI safe wireless charger of Low emissivity, packet with electric energy
It includes: host A and the master control pcb board 1 being arranged in inside the host A；Be provided on master control pcb board 1 power input socket 3,
Voltage ADC sampling module 4, electric current ADC sampling module 5, MCU programmable chip 2, digital display screen 10, PWM control module 6 with
And electric energy transmitting coil 7；Power input socket 3 is connect with the input terminal of voltage ADC sampling module 4；Voltage ADC sampling module 4
The first output end connect with the input terminal of electric current ADC sampling module 5；The first output end and PWM of electric current ADC sampling module 5
The input terminal of control module 6 connects；The output end of PWM control module 6 is connect with electric energy transmitting coil 7；Voltage ADC sampling module
4 second output terminal is connect with MCU programmable chip 2 respectively with the second output terminal of electric current ADC sampling module 5；Number display
The input terminal of screen 10 is connect with MCU programmable chip 2.
In a specific embodiment of the utility model, this host A may include master control pcb board 1 and be set to master control
Cover board 101 on pcb board 1, spacing presets spacing between the master control pcb board 1 and cover board 101, for accommodating electronic component, line
Circle, magnet ring etc..The integrated chip of SP3100 series or NU1300 series, such as model can be used in MCU programmable chip 2
The MCU of SP310002 solidifies the software having for charge control and power calculation thereon, is existing for realizing correlation function
Technology and be not the utility model inventive point, be not described in detail herein.
Power input socket 3 can be for Micro USB interface and equipped with corresponding power supply adaptor；Voltage ADC sampling module
4 and electric current ADC sampling module 5 is respectively by the electric current in charging process, and information of voltage is transmitted to MCU programmable chip 2, through analyzing
The power of charging and the information about power of charging can be shown after processing by digital display screen 10, is checked for user；PWM control
Molding block 6 generates the pulse frequency needed when charging and width and being sent to electric energy transmitting coil 7 keeps it required when generating charging
Electromagnetic energy, while its work can also be made to pacify the electromagnetic pulse self-correction of electric energy transmitting coil 7 at work and regulation
It ensure that the safety of charging in full range.
To advanced optimize the technical solution, be additionally provided on master control pcb board 1: radiation protection absorption circuit 8, radiation protection are inhaled
It receives magnet ring 9 and temperature sensor 21, radiation protection absorption circuit 8 is set to master control PCB corresponding with 7 position of electric energy transmitting coil
The other side of plate 1 is such as set on cover board 101.Radiation protection high-frequency absorption magnet ring 9 is arranged along the edge of radiation protection absorption circuit 8
It circularizes structure and radiation protection absorption circuit 8 is trapped among its inside；The top of electric energy transmitting coil 7 is arranged in temperature sensor 21,
Temperature sensor 21 is connect with MCU programmable chip 2, and the heating temperature of electric energy transmitting coil 7, which is fed back to MCU, in real time may be programmed
Chip 2.
Please continue to refer to Fig. 1, the host A includes cover board 101, and the cover board 101 is set to the master control pcb board 1
Top offers the through-hole for keeping electric energy transmitting coil 7 exposed thereon.In the present embodiment, by being set on the cover board
Through-hole is set, electric energy transmitting coil 7 is exposed to outside, the energy of the transmitting signal of the electric energy transmitting coil 7 can be further reduced
Amount loss, to improve the charge efficiency of wireless charging.
In a specific embodiment of the utility model, 8 subsection setup of radiation protection absorption circuit is on cover board and being surrounded by
Annular, the radiation protection absorption circuit 8 are made of three interrupted concentric circles (annulus for also being understood as dotted line shape).Radiation protection
Absorption magnet ring 9 is the strip sheet copper with one fixed width, is fenced up from outermost by copper coil is closed, the height of copper sheet is big
In the height of closure copper coil；Copper sheet and closure copper coil are fixed on master control pcb board 1 by way of welding or being bonded, this
Kind design method can effectively reduce influence of the electromagnetic radiation to human body.
NTC temperature sensor can be used in temperature sensor 21, by the corresponding resistance value of temperature at electric energy transmitting coil 7
Information passes to MCU programmable chip 2, and is shown that the setting of temperature sensor 21 can be to master by digital display screen 10
The temperature of machine A and the charging equipment contacted with host A carries out real-time monitoring, to excessively high temperature with MCU programmable chip
It alarms, avoids the excessively high fire hazard that may cause of temperature.In the another specific embodiment of the utility model, it is closed copper
FERRITE CORE is additionally provided at the center of coil, FERRITE CORE is welded on master control pcb board 1, with closure copper coil and copper
Plate mutual cooperation can play better radiation protection.
Referring to Figure 4 together, it is additionally provided on master control pcb board 1: Voltage stabilizing module 15, power input socket 3 and Voltage stabilizing module
15 input terminal connection；The output end of Voltage stabilizing module 15 is programmable with the input terminal of voltage ADC sampling module 4 and MCU respectively
Chip 2 connects.
It is additionally provided on master control pcb board 1: mobile power source input port 14, mobile power source input port 14 and Voltage stabilizing module 15
Input terminal connection.Voltage stabilizing module 15 can be LDO benchmark voltage stabilizing chip, and the setting of LDO benchmark voltage stabilizing chip can make MCU programmable
Chip 2 is by fast charge voltage sampling module 12, in the voltage sample to power input socket 3 and the entrance of mobile power source input port 14
It is compared on the basis of the voltage that LDO benchmark voltage stabilizing chip provides and is calculated with ADC in the process, to show that accurate electric discharge is big
Fractional value, to reach more accurately discharge effect, in addition the connection of Voltage stabilizing module 15 and other modular circuits can play stabilization
The effect of power supply.
In some specific embodiments of the utility model, mobile power source input port 14 can be Micro USB/MiNi
The novel USB devices such as USB/iPhone5/Type-C/ high current binding post, when not having power supply adaptor, backup power source can lead to
The wireless charger that mobile power source input port 14 is crossed to the utility model provides power supply, makes the wireless charging utensil of the utility model
There is the bigger scope of application, is provided conveniently for user.
Also referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, the PWM control module 6 includes: wireless charging control chip U1,
One resistance R1, second resistance R2, first capacitor C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5,
Six capacitor C6, the 7th capacitor C7, the 8th capacitor C8, the 9th capacitor C9 and the tenth capacitor C10.
The PWM1 foot of the PWM1 foot connection MCU programmable chip 2 of the wireless charging control chip U1, the wireless charging
The PWM2 foot of the PWM2 foot connection MCU programmable chip 2 of chip U1 is controlled, the ISNS foot of the wireless charging control chip U1 connects
Electric current ADC sampling module 5 is connect, the EN foot of the EN foot connection MCU programmable chip 2 of the wireless charging control chip U1 is described
Wireless charging control chip U1 SW1 foot connection electric energy transmitting coil interface one end, also by first capacitor C1 connection wirelessly
The BST1 foot of charge controlling chip U1 also passes through the second capacitor C2 ground connection, and the SW2 foot of wireless charging control chip U1 passes through third
The BST2 foot of capacitor C3 connection wireless charging control chip U1 connects also by the 4th capacitor C4 ground connection, also by the 5th capacitor C5
Connect the other end of electric energy transmitting coil interface.
The wireless charging chip of model NU1007, exportable certain power can be used in the wireless charging control chip
Charging voltage and charging current carry out the charge function of control coil, while corresponding charging number is calculated by MCU programmable chip 2
It is shown according to driving digital display screen 10.The 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8, the 9th capacitor C9, the tenth electricity
It is in parallel with the 5th capacitor C5 to hold C10.5th to the 8th capacitor mainly plays power supply filter action, and output is made to give electric energy emission lines
The charging voltage and charging current of circle 7 are more stable.
Also referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 6, the electric current ADC sampling module 5 includes current sample chip U2, the
One diode D1,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8,
9th resistance R9, the tenth resistance R10, eleventh resistor R11, the 11st capacitor C11, the 12nd capacitor C12, the 13rd capacitor
C13 and the 14th capacitor C14.
The SEL foot of the ENB foot connection MCU programmable chip 2 of the current sample chip U2, current sample chip U2's
VCC foot connects A5V feeder ear, and the A1 foot of current sample chip U2 connects one end of the 11st capacitor C11, also by 3rd resistor
The other end of the VREF foot of R3 connection MCU programmable chip 2, the 11st capacitor C11 is programmable by the 5th resistance R5 connection MCU
The VREF foot of chip 2 and pass through the ISEN foot of the 6th resistance R6 connection MCU programmable chip 2 and the 13rd capacitor C13 one
End also passes through the 12nd capacitor C12 ground connection, the other end ground connection of the 13rd capacitor C13, and the A2 foot of current sample chip U2 passes through
The VREF foot of 4th resistance R4 connection MCU programmable chip 2 is grounded also by the 9th resistance R9, also passes sequentially through the 7th resistance
The anode of the cathode of R7, the 14th capacitor C14 connection first diode D1, first diode D1 passes through the 8th resistance R8 connection electricity
The B foot of the other end of energy transmitting coil interface, current sample chip U2 passes through eleventh resistor R11 connection MCU programmable chip
2 OPA-P foot is grounded also by the 14th capacitor C14.
Also referring to Fig. 1, Fig. 2, Fig. 3, Fig. 6 and Fig. 7, the voltage ADC sampling module 4 include the second diode D2,
Twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14, the 15th capacitor C15 and the 16th capacitor C16, described
The other end of the anode connection electric energy transmitting coil interface of two diode D2, the cathode of the second diode D2 pass through twelfth resistor
The other end of one end of R12 connection thirteenth resistor R13 and one end of the 15th capacitor C15, thirteenth resistor R13 connects MCU
The NC foot of programmable chip 2 is grounded also by the 14th resistance R14 ground connection, also by the 16th capacitor C16.
In the present embodiment, the chip of model A809 can be used in the current sample chip U2, can electric energy transmitting coil 7
Charging current simultaneously feeds back to MCU programmable chip 2, can be by digital display screen 10 after 2 analysis of MCU programmable chip processing
It shows the power of charging and the information about power of charging, is checked for user.
It also referring to Fig. 1, Fig. 2 and Fig. 8, is additionally provided on master control pcb board 1: fast charge trigger 18 and fast charge voltage
The input terminal of sampling module 12, fast charge trigger 18 is connect with MCU programmable chip 2, the output end difference of fast charge trigger 18
It is connect with power input socket 3 and mobile power source input port 14；The input terminal of fast charge voltage sampling module 12 respectively with power supply
Input socket 3 and mobile power source input port 14 connect, the output end and MCU programmable chip 2 of fast charge voltage sampling module 12
Connection.
The fast charge trigger 18 is high pass and PD fast charge agreement trigger, defeated from power input socket 3 and mobile power source
The power supply adaptor or other power supply units that entrance 14 accesses have a fast charge function, MCU programmable chip 2 by high pass with
PD agreement fast charge trigger activation power supply adaptor or other have the fast charge mode of power supply, to realize high voltage and high power to nothing
Line charge electric power supply realizes more high-power faster charging rate.
Fast charge voltage sampling module 12 is usb data D+/D- voltage ADC sampler part, and the voltage value for sampling is sent to
Fast charge voltage protocol value is calculated after carrying out analog-to-digital conversion in MCU programmable chip 2, and is shown by digital display screen 10
Show, so that user be facilitated to check wireless charger whether in fast charge state.
Wherein, the fast charge voltage sampling module 12 include: the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, third metal-oxide-semiconductor Q3,
15th resistance R15, the 16th resistance R16, the 17th resistance R17, the 18th resistance R18, the 19th resistance R19, the 20th
Resistance R20, the 21st resistance R21, the 22nd resistance R22, the 17th capacitor C17 and the 18th capacitor C18, described first
Metal-oxide-semiconductor Q1 grid connection MCU programmable chip 2 the 11st foot, also by the 17th capacitor C17) connection A5V feeder ear and
One end of 17th resistance R17 also passes through the 15th resistance R15 ground connection, and the drain electrode of the first MOS pipe Q1 passes through the 16th resistance
D+ foot, the other end of the 17th resistance R17 and one end of the 18th resistance R18 of R16 connection mobile power source input port 14, the tenth
The grid connection MCU of the source electrode of the other end of eight resistance R18 and the first metal-oxide-semiconductor Q1 ground connection, the second metal-oxide-semiconductor Q2 may be programmed core
13rd foot of piece 2, one end of the 19th resistance R19 of drain electrode connection of the second metal-oxide-semiconductor Q2, the 19th resistance R19's is another
End connects the drain electrode of third metal-oxide-semiconductor Q3, also by the 20th resistance R20 connection A5V feeder ear, also by the 22nd resistance
The D- foot of R22 connection mobile power source input port 14, the 14th of the grid connection MCU programmable chip 2 of the third metal-oxide-semiconductor Q3 the
Foot is grounded, the second metal-oxide-semiconductor Q2 also by the 18th capacitor C18 connection A5V feeder ear, also by the 21st resistance R21
The 19th resistance R19 of drain electrode connection one end, the other end of the 19th resistance R19 passes through the 20th resistance R20 connection A5V confession
Electric end, also by the D- foot of the 22nd resistance R22 connection mobile power source input port 14, the drain electrode and third of the second metal-oxide-semiconductor Q2
The drain electrode of metal-oxide-semiconductor Q3 is grounded.
The first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, third metal-oxide-semiconductor Q3 are NPN metal-oxide-semiconductor, when its grid is high level
When metal-oxide-semiconductor be connected, fast charge voltage sampling module sampling usb data D+/D- voltage simultaneously feed back to MCU programmable chip 2.
It please continue to refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 9, is additionally provided on the master control pcb board 1: 23 He of buzzing alarming horn
LED light 22；The buzzing alarming horn 23 connects the BUZZER foot of MCU programmable chip 2, the LED light 22 is divided
LED1 foot and LED2 foot are not connect with the MCU programmable chip 2.
Meanwhile 1 being additionally provided on master control pcb board: the online serial port module 25 of memory 13, key 11, computer, wireless blue tooth
Module 24 and Current Voltage precision calibrate mouth 20；The online serial port module 25 of memory 13, key 11, computer, wireless blue tooth mould
Block 24, Current Voltage precision calibration mouth 20 are connect with MCU programmable chip 2 respectively.
In some specific embodiments of the utility model, memory 13 can use EEPROM power-fail memory function chip, lead to
It crosses MCU programmable chip 2 data such as capacity, electricity, time in charging process are transmitted in EEPROM power-fail memory function chip
Face, the power-fail memory function data of last time can be called at any time after powered up in next time facilitates checking for user；The setting of key 11 can
It is operated with the calibration, zeros data reset, changing interface etc. that facilitate host, it is more convenient to use quick.
The overcurrent or when overpower situation when input voltage excessively high high, too low, charge fault, MCU programmable chip
5th foot exports high level, and driving loudspeaker export alarm sound.Current Voltage precision is calibrated mouth 20 and is remembered by powering off with EEPROM
Chip, MCU programmable chip 2 and the cooperation of key 11 are recalled to the voltage of wireless charger internal components, and the information such as electric current carry out
Calibration；It is online by the online serial port module 25 of computer and wireless blue tooth module 24 and computer or mobile phone, MCU can be may be programmed core
Data transmission in piece 2 is shown to computer or mobile phone, as shown in Figure 10, and can be put according to the data transmitted
The drafting of electric curve facilitates technical staff's checking to the relevant information of wireless charger；LED light 22 and MCU are programmable
Chip 2 cooperates, by show different color can charging to wireless charger and charging complete state mention respectively
Show.
In a specific embodiment of the utility model, memory 13 is with MCU programmable chip 2 using the company of I2C bus
The mode of connecing is communicated.
To advanced optimize the technical solution, each component part being arranged on master control pcb board 1 is by power input socket 3
And/or battery pack 17 is powered.In a specific embodiment of the utility model, power input socket 3 and/or battery pack 17
Reliable and stable power supply is provided by Voltage stabilizing module 15 for each module for needing electricity consumption on master control pcb board 1.
Further, it is additionally provided on master control pcb board 1: battery capacity ADC sampling module 19；The output end of battery pack 17
It is connect with the input terminal of battery capacity ADC sampling module 19；The output end and MCU of battery capacity ADC sampling module 19 are programmable
Chip 2 connects.
When it is implemented, battery pack 17 is by more piece rechargeable lithium battery, the group by way of in parallel and serial becomes wireless charging
Electric appliance provides electric energy, allows user that can also carry out wireless charging, battery charging and power supply double-direction control anywhere or anytime to open air
Chip 16 makes user can also be to built-in while being powered by power input socket 3 to wireless charger with power supply adaptor
Rechargable battery group carries out charging continuation of the journey, so as to user outdoors offline using wireless charger when allow battery pack have enough electricity to
Charger power supply.
Figure 11 is please referred to, in some specific embodiments of the utility model, by patrolling to 2 burning of MCU programmable chip
Program is collected, after receiving various kinds data in the process of running and carrying out logical operation, the display of digital display screen 3 is delivered to and charged
Voltage, electric current, power, capacity in journey, electricity, temperature, internal resistance, the D+D- voltage measurement in charging time, fast charge protocol status
The display of the data such as display, capacity coefficient setting, charging time, countdown charging time；It may be selected by 11 user of key aobvious
The content of the language and display that show.
Please refer to Figure 11, Figure 12 and Figure 13, in some specific embodiments of the utility model, host A is together with being arranged at it
Internal master control pcb board 1, can be made into the product of various shapes, meet the needs of users, improve the applicable model of the utility model
It encloses, makes the utility model that there is good promotion prospect.
In conclusion the utility model absorbs the mutually matched setting of magnet ring by radiation protection absorption circuit and radiation protection,
A magnetic-field closed loop road absorption of electromagnetic radiation, electromagnetic radiation pair when effectively reducing charging are formd at electric energy transmitting coil
The influence of human body；MCU programmable chip and its matched sensor and processing circuit, make wireless charger when being charged,
Various information when can be to charging are checked, are provided convenience for the use of people, rechargeable battery pack is set using
Family can charge whenever and wherever possible.
It is understood that for those of ordinary skills, can with technical solution according to the present utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement all should belong to appended by the utility model
Scope of protection of the claims.
Claims (8)
1. a kind of wireless charger with display function characterized by comprising host (A) and setting are at the host (A)
Internal master control pcb board (1)；
Power input socket (3), voltage ADC sampling module (4), electric current ADC sampling mould are provided on the master control pcb board (1)
Block (5), MCU programmable chip (2), digital display screen (10), PWM control module (6) and electric energy transmitting coil (7)；
The input terminal connection of the power input socket (3) and the voltage ADC sampling module (4)；The voltage ADC is adopted
The input terminal connection of first output end of egf block (4) and the electric current ADC sampling module (5)；The electric current ADC sampling
The input terminal connection of first output end of module (5) and the PWM control module (6)；
The output end of the PWM control module (6) and electric energy transmitting coil (7) connection；The voltage ADC samples mould
The second output terminal of the second output terminal of block (4) and the electric current ADC sampling module (5) respectively with the MCU programmable chip
(2) it connects；The input terminal of the digital display screen (10) is connect with the MCU programmable chip (2)；
It is additionally provided on the master control pcb board (1): Voltage stabilizing module (15), the power input socket (3) and the Voltage stabilizing module
(15) input terminal connection；The output end of the Voltage stabilizing module (15) input terminal with the voltage ADC sampling module (4) respectively
And MCU programmable chip (2) connection；
It is additionally provided on the master control pcb board (1): mobile power source input port (14), the mobile power source input port (14) and institute
State the input terminal connection of Voltage stabilizing module (15).
2. the wireless charger according to claim 1 with display function, which is characterized in that on the master control pcb board (1)
Be additionally provided with: fast charge trigger (18) and fast charge voltage sampling module (12), the input terminal of the fast charge trigger (18) with
The MCU programmable chip (2) connection, the output end of the fast charge trigger (18) respectively with the power input socket (3)
And mobile power source input port (14) connection；The input terminal of the fast charge voltage sampling module (12) respectively with the power supply
Input socket (3) and the mobile power source input port (14) connection, the output end of the fast charge voltage sampling module (12) with
MCU programmable chip (2) connection.
3. the wireless charger according to claim 1 with display function, which is characterized in that the PWM control module (6)
It include: wireless charging control chip (U1), first resistor (R1), second resistance (R2), first capacitor (C1), the second capacitor
(C2), third capacitor (C3), the 4th capacitor (C4), the 5th capacitor (C5), the 6th capacitor (C6), the 7th capacitor (C7), the 8th electricity
Hold (C8), the 9th capacitor (C9) and the tenth capacitor (C10), the PWM1 foot connection MCU of the wireless charging control chip (U1) can
The PWM1 foot of chip (2) is programmed, PWM2 foot connection MCU programmable chip (2) of the wireless charging control chip (U1)
The ISNS foot of PWM2 foot, the wireless charging control chip (U1) connects electric current ADC sampling module (5), and the wireless charging is automatically controlled
The SW1 foot of the EN foot of EN foot connection MCU programmable chip (2) of coremaking piece (U1), the wireless charging control chip (U1) connects
Connect electric energy transmitting coil interface one end, also by first capacitor (C1) connection wireless charging control chip (U1) BST1 foot,
It is also grounded by the second capacitor (C2), the SW2 foot of wireless charging control chip (U1) connects wireless charging by third capacitor (C3)
The BST2 foot of electric control chip (U1) connects electric energy transmitting also by the 4th capacitor (C4) ground connection, also by the 5th capacitor (C5)
The other end of coil interface, the 6th capacitor (C6), the 7th capacitor (C7), the 8th capacitor (C8), the 9th capacitor (C9), the tenth
Capacitor (C10) is in parallel with the 5th capacitor (C5).
4. the wireless charger according to claim 3 with display function, which is characterized in that the electric current ADC samples mould
Block (5) includes current sample chip (U2), first diode (D1), 3rd resistor (R3), the 4th resistance (R4), the 5th resistance
(R5), the 6th resistance (R6), the 7th resistance (R7), the 8th resistance (R8), the 9th resistance (R9), the tenth resistance (R10), the 11st
Resistance (R11), the 11st capacitor (C11), the 12nd capacitor (C12), the 13rd capacitor (C13) and the 14th capacitor (C14), institute
State the SEL foot of ENB foot connection MCU programmable chip (2) of current sample chip (U2), the VCC foot of current sample chip (U2)
A5V feeder ear is connected, the A1 foot of current sample chip (U2) connects one end of the 11st capacitor (C11), also by 3rd resistor
(R3) the VREF foot of MCU programmable chip (2) is connected, the other end of the 11st capacitor (C11) is connected by the 5th resistance (R5)
The VREF foot of MCU programmable chip (2) simultaneously passes through the ISEN foot and the tenth of the 6th resistance (R6) connection MCU programmable chip (2)
One end of three capacitors (C13) also passes through the 12nd capacitor (C12) ground connection, the other end ground connection of the 13rd capacitor (C13), electric current
The A2 foot of sampling A/D chip (U2) connects the VREF foot of MCU programmable chip (2) by the 4th resistance (R4), also by the 9th resistance
(R9) be grounded, also pass sequentially through the 7th resistance (R7), the 14th capacitor (C14) connection first diode (D1) cathode, first
The anode of diode (D1) connects the other end of electric energy transmitting coil interface, current sample chip (U2) by the 8th resistance (R8)
B foot by the OPA-P foot of eleventh resistor (R11) connection MCU programmable chip (2), connect also by the 14th capacitor (C14)
Ground.
5. the wireless charger according to claim 3 with display function, which is characterized in that the voltage ADC samples mould
Block (4) includes the second diode (D2), twelfth resistor (R12), thirteenth resistor (R13), the 14th resistance (R14), the tenth
The anode of five capacitors (C15) and the 16th capacitor (C16), second diode (D2) connects the another of electric energy transmitting coil interface
One end, one end and the 15th that the cathode of the second diode (D2) passes through twelfth resistor (R12) connection thirteenth resistor (R13)
One end of capacitor (C15), the other end of thirteenth resistor (R13) connect the NC foot of MCU programmable chip (2), also by the tenth
Four resistance (R14) ground connection also passes through the 16th capacitor (C16) ground connection.
6. the wireless charger according to claim 2 with display function, which is characterized in that the fast charge voltage sample mould
Block (12) includes: the first metal-oxide-semiconductor (Q1), the second metal-oxide-semiconductor (Q2), third metal-oxide-semiconductor (Q3), the 15th resistance (R15), the 16th electricity
Hinder (R16), the 17th resistance (R17), the 18th resistance (R18), the 19th resistance (R19), the 20th resistance (R20), second
11 resistance (R21), the 22nd resistance (R22), the 17th capacitor (C17) and the 18th capacitor (C18), the first MOS
Manage (Q1) grid connection MCU programmable chip (2) the 11st foot, also by the 17th capacitor (C17) connection A5V feeder ear and
One end of 17th resistance (R17) also passes through the 15th resistance (R15) ground connection, and the drain electrode of the first metal-oxide-semiconductor (Q1) passes through the 16th
Resistance (R16) connects the other end and the 18th resistance of the D+ foot of mobile power source input port (14), the 17th resistance (R17)
(R18) one end, the other end of the 18th resistance (R18) and the source electrode ground connection of the first metal-oxide-semiconductor (Q1), second metal-oxide-semiconductor
(Q2) drain electrode of the 13rd foot of grid connection MCU programmable chip (2), second metal-oxide-semiconductor (Q2) connects the 19th resistance
(R19) one end, the other end of the 19th resistance (R19) connect the drain electrode of third metal-oxide-semiconductor (Q3), also by the 20th resistance
(R20) A5V feeder ear is connected, also by the D- foot of the 22nd resistance (R22) connection mobile power source input port (14), described the
14th foot of grid connection MCU programmable chip (2) of three metal-oxide-semiconductors (Q3) is supplied also by the 18th capacitor (C18) connection A5V
Electric end also passes through the 21st resistance (R21) ground connection, and the drain electrode of second metal-oxide-semiconductor (Q2) connects the 19th resistance (R19)
The other end of one end, the 19th resistance (R19) connects A5V feeder ear by the 20th resistance (R20), also by the 22nd electricity
Hinder the D- foot of (R22) connection mobile power source input port (14), the drain electrode of the second metal-oxide-semiconductor (Q2) and the drain electrode of third metal-oxide-semiconductor (Q3)
It is grounded.
7. the wireless charger according to claim 2 with display function, which is characterized in that on the master control pcb board (1)
It is additionally provided with: buzzing alarming horn (23) and LED light (22)；Buzzing alarming horn (23) the connection MCU may be programmed core
The BUZZER foot of piece (2), the LED light (22) connect LED1 foot and LED2 with the MCU programmable chip (2) respectively
Foot.
8. the wireless charger according to claim 2 with display function, which is characterized in that also set on the pcb board (1)
It sets battery pack (17), voltage ADC sampling module (4), electric current ADC sampling module (5), MCU programmable chip (2), number display
Shield (10), PWM control module (6), electric energy transmitting coil (7), mobile power source input port (14), Voltage stabilizing module (15), fast charge touching
Hair device (18), fast charge voltage sampling module (12) are supplied by the power input socket (3) and/or the battery pack (17)
Electricity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018202306123 | 2018-02-09 | ||
| CN201820230612 | 2018-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209709704U true CN209709704U (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920013587.8U Active CN209562175U (en) | 2018-02-09 | 2019-01-04 | A kind of wireless charger shown with electric energy |
| CN201920013565.1U Active CN209709704U (en) | 2018-02-09 | 2019-01-04 | A kind of wireless charger with display function |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920013587.8U Active CN209562175U (en) | 2018-02-09 | 2019-01-04 | A kind of wireless charger shown with electric energy |
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| Country | Link |
|---|---|
| CN (2) | CN209562175U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366785A (en) * | 2020-11-13 | 2021-02-12 | 深圳市北美通科技有限公司 | Novel mobile phone charger capable of feeding back information of rechargeable battery |
| CN114167840A (en) * | 2021-12-06 | 2022-03-11 | 广东利扬芯片测试股份有限公司 | Wireless charging chip test system combined with peripheral MCU |
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2019
- 2019-01-04 CN CN201920013587.8U patent/CN209562175U/en active Active
- 2019-01-04 CN CN201920013565.1U patent/CN209709704U/en active Active
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|---|---|
| CN209562175U (en) | 2019-10-29 |
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