CN207200312U - A kind of quick-charging circuit and portable power source - Google Patents

Abstract

A kind of multiplex roles RAPID CHARGING POWER SUPPLY, including shell, the input interface and output interface of the battery being contained within the shell and setting on the housing, the output interface includes Micro USB interfaces, TYPE C interface and Lightning interfaces, also include main control module, charge-discharge circuit, detection circuit, fast charge output module and wireless internet of things circuit, wherein：The wireless internet of things receive wireless control signal and worked with triggering charge-discharge circuit described in the master control module controls and fast charge output module；The charge-discharge circuit is used to be that input voltage transformation is the battery charging, and transformation is exported to the Micro USB interfaces and/or TYPE C interface.Above-mentioned multiplex roles RAPID CHARGING POWER SUPPLY controls its work by wifi, when receiving wireless control signal, charge power supply could provide charge power supply for equipment to be charged, in addition, can be with three kinds of interfaces, the interface of the compatible mobile terminals most on the market of energy, can meet simple, quick charge requirement.

Description

A kind of quick-charging circuit and portable power source

Technical field

The utility model belongs to portable power source technical field, more particularly to a kind of quick-charging circuit and portable power source.

Background technology

At present, with the development of science and technology, increasing digital electronic goods need to use power source charges, this power supply can be with It is that the power supply with storage electric energy unit device is charged or had both directly to digital electronic goods.Power supply, which can be named, to be filled It is electric precious, portable power source, fast charge charging portable power source, back splint power supply, external battery, charging partner etc., they are substantially exactly to number Code electronic product provides the article of electric energy.

And digital electronic goods charge because brand, function, battery capacity all disunities have charging inlet disunity Voltage disunity, the skimble-scamble problem of charge protocol.It can so cause different digital electronic goods to need different power supplys, make Into the significant wastage of resource.Accelerate with the development of network information and rhythm of life, people use the time of digital electronic goods Increasingly longer, frequency of use is more and more, and it is fast, it is necessary to quick electric energy supplement to thereby result in battery power consumption.

Utility model content

The purpose of this utility model is to provide a kind of quick-charging circuit, it is intended to solves to exist in traditional technical scheme Charging voltage and current mismatch with causing charge efficiency the problem of.

A kind of quick-charging circuit, is connected with battery and output interface, and the quick-charging circuit includes main control module, fast Fill output module and detection circuit：

The main control module is connected with the battery, output interface, detection circuit and fast charge output module；

The detection circuit is connected with output interface, detects access state, the fast charge output mould of the output interface The voltage x current of block output；

The fast charge output module is connected with the battery and output interface, described when the output interface has access Fast charge output module described in master control module controls exports charging voltage to the output interface, and adjusts exported voltage x current Or close the fast charge output module.

Preferably, the fast charge output module includes inductor, DC-DC chips, feedback module and filtration module, wherein：

The inductor first terminates the battery and obtains positive pole, and the input of the second termination DC-DC chips is described The control terminal of the enabled termination main control module of DC-DC chips；The output of the DC-DC chips terminates the output interface, The output end of the DC-DC chips also connects one end of the filtration module, the other end ground connection of the filtration module, the feedback The input of module terminates the output end of the DC-DC chips, and the output of the feedback module terminates the feedback of the DC-DC chips End.

Preferably, the feedback module includes the first feedback resistance and the second feedback resistance, first feedback resistance one The output end of the DC-DC chips is terminated, the feedback end of another termination DC-DC chips simultaneously passes through second feedback resistance Ground connection.

Preferably, the filtration module includes multiple filter capacitors, described in the termination after the plurality of filter capacitor parallel connection The output end of DC-DC chips, other end ground connection.

Preferably, the detection circuit includes the first divider resistance, the second divider resistance and the 3rd divider resistance, and described the One divider resistance one terminates the output end of the DC-DC chips, another to connect the main control module and connect second partial pressure One end of resistance, the ground pin of another termination output interface of the divider resistance, and by connecing the 3rd partial pressure electricity Resistance ground connection.

Preferably, the output interface is Lightning interfaces or TYPE-C interfaces.

In addition, additionally providing a kind of portable power source, there is shell, the battery being contained within the shell and be arranged on described Input interface and output interface on shell, in addition to above-mentioned RAPID CHARGING POWER SUPPLY electricity.

Above-mentioned quick-charging circuit can adjust discharge voltage electric current by detecting charging/discharging voltage electric current and be treated with matching Charging equipment, simple, quick charge requirement can be met, there is provided optimal charging scheme, prevent from, because charge protocol mismatches, filling Electrical interface, which mismatches, causes charging rate to expire, and charging damage digital electronic goods, interface is unable to charging phenomenon.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model portable power source；

Fig. 2 is the electrical block diagram of the utility model quick-charging circuit；

Fig. 3 be Fig. 2 shown in quick-charging circuit in wireless internet of things circuit structural representation；

Fig. 4 be Fig. 2 shown in quick-charging circuit in wireless internet of things circuit exemplary circuit schematic diagram；

Fig. 5 be Fig. 2 shown in quick-charging circuit in charge-discharge circuit structural representation；

Fig. 6 be Fig. 2 shown in quick-charging circuit in charge-discharge circuit exemplary circuit schematic diagram；

Fig. 7 be Fig. 2 shown in quick-charging circuit in fast charge output module structural representation；

Fig. 8 be Fig. 2 shown in quick-charging circuit in fast charge output module exemplary circuit schematic diagram.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining The utility model, it is not used to limit the utility model.

Referring to Fig. 1, portable power source includes shell 1, the battery (not shown) being contained within the shell and is arranged on outer Input interface 2 and output interface 3 on shell, output interface 3 include Micro USB interfaces 31, the and of TYPE-C interfaces 32 Lightning interfaces 33.Input interface 2 is the charging inlet of battery, is contact point mode, by contact, is provided to power supply Electric energy.

Referring to Fig. 2, the quick-charging circuit in portable power source includes main control module 11, wireless internet of things circuit 12, filled Discharge circuit 13, detection circuit 14, fast charge output module 15 and battery protecting circuit 16.

Main control module 11 and battery 4, input interface 2, output interface 3, charge-discharge circuit 13, detection circuit 14, fast charge are defeated Go out module 15 and wireless internet of things circuit 12 connects.Wireless internet of things circuit 12 is connected with battery 4, for receiving controlled in wireless letter Number charge-discharge circuit 13 and fast charge output module 15 is controlled to work to trigger main control module 11, it is charge-discharge circuit 13 and battery 4, defeated Incoming interface 2 and output interface 3 connect, for being that battery 4 charges for input voltage transformation, and for being exported for the transformation of battery 4 To Micro USB interfaces and/or TYPE-C interfaces；Detection circuit 14 is connected with battery 4, input interface 2 and output interface 3, is used In the detection electricity of battery 4, the voltage x current of the input and output of charge-discharge circuit 13, the access state of detection output interface 3, fast charge The voltage x current that output module 15 exports；Fast charge output module 15 is connected with battery 4 and output interface 3, is connect in output interface 3 When entering charging equipment, main control module 11 controls fast charge output module 15 to export charging voltage to output interface 3, and it is defeated to adjust institute The voltage x current or closing institute fast charge output module 15 gone out.

Specifically, the charge power supply in the utility model has an identification label (such as Quick Response Code), for passing through identification After label is to pay the fees, server issues a wireless control signal to charge power supply, starts charging electricity with the wireless control signal Source exports electric energy in output interface 3 and charged to the mobile terminal of user.In addition, main control module 11 is intelligent protocol IC (Integrated Circuit, integrated circuit), intelligent protocol IC compatibilities FCP (fast charge is thought in sea by Huawei), QC (Quick Charge) 2.0, QC3.0, BC (Battery Charging Specification, battery Charging Specification) 1.2 scheme IC.Branch Hold fast charge mode and normal charging mode while export.Multiple protection functions are realized by detecting circuit 14, it is anti-overcharge, prevent Cross and put, anti-overvoltage, anti-overflow, anti-overpower, anti-short circuit, high temperature, which is closed, to be exported.

Quick-charging circuit also includes intelligent identifying circuit, and it is arranged on output interface automatic decision digital electronic goods and filled Electric agreement, charged after shaking hands successfully with optimal voltage x current.Fast charge charging voltage supports 3.6~12V outputs, maximum current Support 3A.Common output voltage is 5V, maximum current 2.4A.Output filter circuit is smooth output voltage current curve, soon Speed charging and common charging two-way, it is directly connected with multiplex roles output charging wire.

In the present embodiment, wireless internet of things circuit 12 includes WIFI chips 121, power supply unit 122 and indicating member 123. Power supply unit 122 is connected with battery 4 and main control module 11, for being powered for WIFI chips 121.

WIFI chips 121 have COM1 IO13, status port IO0 and triggering port IO4, COM1 IO13 and touched Originator mouth IO4 is connected with main control module 11, and it is defeated from triggering port IO4 that WIFI chips 121 receive valid wireless control signal Go out trigger signal WIFI-ON to be used to receive charging voltage and current data and electric quantity data to main control module 11, COM1 IO13 Wirelessly to upload, status port IO0 is connected WIFI-RX with indicating member 123, electricity of the indicating member 123 by status port IO0 It is flat to control to indicate the working condition of WFI chips.

Preferably, power supply unit 122 include a voltage stabilizing chip U3, input filter capacitor C21 and output filter capacitor C22, C23, voltage stabilizing chip the U3 positive pole of input termination battery 4 and input filter capacitor C21 one end, input filter capacitor C21's The other end is grounded, and the first control terminal WIFI-EN of voltage stabilizing chip U3 enabled termination main control module 11, voltage stabilizing chip U3's is defeated Go out to terminate output filter capacitor C22, C23 one end and the power port of WIFI chips 121, output filter capacitor C22, C23's The other end is grounded.

Indicating member 123 includes LED and divider resistance R41, and the anode of LED connects power supply 3.3V, negative electrode are connected by divider resistance R41 with the status port IO0 of WIFI chips 121, wherein, the state of WIFI chips 121 Port IO0 low levels are effective, and LED is lighted.

User logs in APP by mobile terminal, and APP bottoms call mobile terminal camera identification 2 D code information.Collection two dimension Code information success, and return and call equipment ID number.APP is established by http protocol and payment system and connected, and is returned after paying successfully Order data is adjusted to trade company backstage, trade company successfully accepts an order data and establishes connection with platform of internet of things, and sends device id Number, control time to platform of internet of things.Establish and connect with wireless internet of things circuit 12 after platform of internet of things successful data reception, and Forwarding start and control duration order.

Barcode scanning Quick Response Code is completed after paying, and wireless internet of things circuit 12 receives payment successfully order (i.e. valid wireless Control signal), the pin of WIFI Internet of Things module the 10th (triggering port IO4) to a high level WIFI-ON to main control module 11, After main control module 11 receives this high level, exported respectively to charge-discharge circuit 13, detection circuit 14, fast charge output module 15 Control signal, realize output control.

Fig. 5 and Fig. 6 are referred to, charge-discharge circuit 13 includes voltage transformation unit 131, input block 132 and output unit 133.

The first end of voltage transformation unit 131 is connected with input block 132 and output unit 133, and the second of voltage transformation unit 131 End is connected with battery 4, and voltage transformation unit 131 is controlled by main control module 11 so that the supply voltage for exporting input is carried out into voltage transformation. Input block 132 is connected between input interface 2 and voltage transformation unit 131, is controlled by main control module 11 to access input interface 2 For charge power supply to voltage transformation unit 131, voltage transformation unit 131 will be that battery 4 charges after charge power supply transformation.Output unit 133 connects Between Micro USB interfaces 31, TYPE-C interfaces 32 and voltage transformation unit 131, controlled by main control module 11 with by voltage transformation unit The charging voltage of 131 outputs is output to Micro USB interfaces 31 and TYPE-C interfaces 32 export.

Referring to Fig. 6, voltage transformation unit 131 include first switch chip Q2, second switch chip Q70, the first diode D1, Second diode D2 and inductor L1.

First PWM control terminals OUTL of first switch chip Q2 control termination main control module 11；First switch chip Q2 First termination first diode D1 negative electrode, input block 132 and output unit 133 of the input as voltage transformation unit 131, the One switch chip Q2 output termination inductor L1 first end and the first diode D1 anodes, inductor L1 the second end conduct The positive pole of second termination battery 4 of voltage transformation unit 131；

2nd PWM control terminals OUTH of second switch chip Q70 control termination main control module 11；Second switch chip Q70 input end grounding, second switch chip Q70 output termination inductor L1 first end and the second diode D2 negative electrodes, Second diode D2 plus earths.

Referring to Fig. 6, input block 132 includes first switch module 1321 and first switch control module 1322；First The input termination input interface 2 of switch module 1321, the first of the output termination voltage transformation unit 131 of first switch module 1321 End, the control termination first switch control module 1322 of first switch module 1321；First switch control module 1322 and input Interface 2 connects with the second control terminal DC-IN of main control module 11, the break-make of control first switch module 1321.

In the present embodiment, first switch module 1321 includes a PMOS Q1, PMOS Q1 drain electrode, source electrode and grid point Not Zuo Wei the input, output end of first switch module 1321 and control terminal in other embodiments, or NMOS tube.

First switch control module 1322 includes an a NPN type triode Q3 and voltage-stabiliser tube Z2, triode Q3 colelctor electrode The control terminal of first switch module 1321, triode Q3 grounded emitter are connect, triode Q3 base stage passes through a current-limiting resistance R4 meets the second control terminal DC-IN of main control module 11, and connects voltage-stabiliser tube Z2 negative electrode, voltage-stabiliser tube Z2 plus earth.

Referring to Fig. 6, output unit 133 includes second switch module 1331 and second switch control module 1332；Second The output termination Micro USB interfaces 31 and TYPE-C interfaces 32 of switch module 1331, the input of second switch module 1331 Connect the first end of voltage transformation unit 131, the control termination second switch control module 1332 of second switch module 1331；Second switch Control module 11 is connected with the 3rd control terminal OUT-CTL of main control module 11, the break-make of control second switch module 1331.

In the present embodiment, second switch module 1331 includes two PMOSs Q4, Q8 in parallel, the drain electrode of PMOS pipes, source Pole and grid respectively as the input, output end of second switch module 1331 and control terminal in other embodiments, or NMOS tube.

Second switch control module 1332 includes a NPN type triode Q6, and triode Q6 colelctor electrode connects second switch mould The control terminal of block 1331, triode Q6 grounded emitter, triode Q6 base stage connect main control module by a current-limiting resistance R14 11 the 3rd control terminal OUT-CTL.

Further, charge-discharge circuit 13 also includes filtering energy-storage units 134, and filtering energy-storage units 134 include three filters A ripple electric capacity C2, C3, C4 and storage capacitor E1, three filter capacitor C2, C3, C4 one end and storage capacitor E1 mono- terminate transformation list The first end of member 131, three filter capacitor C2, C3, C4 other ends and storage capacitor E1 other ends ground connection.

Fig. 5 and Fig. 6 are referred to, detection circuit 14 includes input detection unit 141, current detecting unit 142 and voltage inspection Survey unit 143.

Input detection unit 141 is connected with the second control terminal of input interface 2 and main control module 11, detects input interface 2 Access state be input to main control module 11, the fashionable main control module 11 of charging controls charge-discharge circuit 13 to be operated in charging shape State；Current detecting unit 142 is connected with Micro USB interfaces 31 and TYPE-C interfaces 32, and detection discharge current feeds back to master control Module 11, main control module 11 control the break-make of output unit 133 according to the discharge current；Voltage detection unit 143 and transformation list The second end connection of member 131, detection charging/discharging voltage feed back to main control module 11, and main control module 11 controls according to the discharge voltage The break-make or regulation discharge voltage size of input block 132 and output unit 133.

Specifically, input detection unit 141, current detecting unit 142 and voltage detection unit 143 are by potential-divider network structure Into.Further, after input block 132 is using the second control terminal DC-IN control conductings of main control module 11, input is utilized Detection unit 141 provides control signal, while the second control terminal of phase of input detection unit 141 to first switch control module 1322 DC-IN provides the measure voltage ＆ current signal of charging.Similarly, in the 3rd control in output unit 133 using main control module 11 After holding OUT-CTL control conductings, control letter is provided using power supply of the input detection unit 141 to the electric discharge output of voltage transformation unit 131 Number.

Fig. 7 and Fig. 8 are referred to, fast charge output module 15 includes inductor L2, DC-DC chip 151, the and of feedback module 152 Filtration module 153.

Inductor L2 first terminates the positive pole of battery 4, input SW, the DC-DC chip of the second termination DC-DC chips 151 151 Enable Pin EN meets the 4th control terminal OUT-CTL2 of main control module 11；The output end OUT of DC-DC chips 151 connects output Interface 3, the output end of DC-DC chips 151 also connect one end of filtration module 153, the other end ground connection of filtration module 153, feedback The output end OUT of the input termination DC-DC chips 151 of module 152, the output termination DC-DC chips 151 of feedback module 152 Feedback end FB.

Referring to Fig. 8, feedback module 152 includes the first feedback resistance R20 and the second feedback resistance R22, described first is anti- Feed resistance R20 mono- terminates the output end of the DC-DC chips 151, and the feedback end FB of another termination DC-DC chips 151 is simultaneously It is grounded by the second feedback resistance R22.

Filtration module 153 includes multiple filter capacitor C19, C7, C8, after the plurality of filter capacitor C19, C7, C8 parallel connection The output end OUT of one termination DC-DC chips 151, other end ground connection.

Detect circuit 14 also include output detection module 144 include the first divider resistance R42, the second divider resistance R44 and 3rd divider resistance R23, the first divider resistance R42 mono- terminate the output end OUT of DC-DC chips 151, another termination master Control module 11 simultaneously connects the second divider resistance R44 one end, the ground pin of the second divider resistance R44 another termination output interface 3, And it is grounded by the 3rd divider resistance R23.

Preferably, in addition to battery protecting circuit 16, battery protecting circuit 16 are connected with the both positive and negative polarity of battery 4.

Above-mentioned quick-charging circuit can adjust discharge voltage electric current by detecting charging/discharging voltage electric current and be treated with matching Charging equipment, simple, quick charge requirement can be met, there is provided optimal charging scheme, prevent from, because charge protocol mismatches, filling Electrical interface, which mismatches, causes charging rate to expire, and charging damage digital electronic goods, interface is unable to charging phenomenon.

Only described above is preferred embodiment of the present utility model, all at this not to limit the utility model All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims (7)

1. a kind of quick-charging circuit, is connected with battery and output interface, it is characterised in that the quick-charging circuit includes master Control module, fast charge output module and detection circuit：

The main control module is connected with the battery, output interface, detection circuit and fast charge output module；

The detection circuit is connected with output interface, and access state, the fast charge output module for detecting the output interface are defeated The voltage x current gone out；

The fast charge output module is connected with the battery and output interface, when the output interface has access, the master control Module controls the fast charge output module to export charging voltage to the output interface, and adjusts exported voltage x current or pass Close the fast charge output module.

2. quick-charging circuit as claimed in claim 1, it is characterised in that the fast charge output module includes inductor, DC- DC chips, feedback module and filtration module, wherein：

The inductor first terminates the positive pole of the battery, the input of the second termination DC-DC chips, the DC-DC The control terminal of the enabled termination main control module of chip；The output of the DC-DC chips terminates the output interface, described The output end of DC-DC chips also connects one end of the filtration module, the other end ground connection of the filtration module, the feedback module Input terminate the output ends of the DC-DC chips, the output of the feedback module terminates the feedback end of the DC-DC chips.

3. quick-charging circuit as claimed in claim 2, it is characterised in that the feedback module include the first feedback resistance and Second feedback resistance, first feedback resistance one terminate the output end of the DC-DC chips, another termination DC-DC cores The feedback end of piece is simultaneously grounded by second feedback resistance.

4. quick-charging circuit as claimed in claim 2, it is characterised in that the filtration module includes multiple filter capacitors, The output end of the termination DC-DC chips after the plurality of filter capacitor parallel connection, other end ground connection.

5. quick-charging circuit as claimed in claim 2, it is characterised in that it is described detection circuit include the first divider resistance, Second divider resistance and the 3rd divider resistance, first divider resistance one terminate the output end of the DC-DC chips, the other end Connect the main control module and connect one end of second divider resistance, another termination output interface of the divider resistance Ground pin, and be grounded by the 3rd divider resistance.

6. quick-charging circuit as claimed in claim 1, it is characterised in that the output interface be Lightning interfaces or TYPE-C interfaces.

7. a kind of portable power source, there is shell, the battery being contained within the shell and set input on the housing to connect Mouth and output interface, it is characterised in that the quick-charging circuit described in also including any one of claim 1 to 6.