CN106385076B - Charging input and output-controlling device, terminal, charging equipment and control method - Google Patents

Charging input and output-controlling device, terminal, charging equipment and control method Download PDF

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Publication number
CN106385076B
CN106385076B CN201610951350.5A CN201610951350A CN106385076B CN 106385076 B CN106385076 B CN 106385076B CN 201610951350 A CN201610951350 A CN 201610951350A CN 106385076 B CN106385076 B CN 106385076B
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China
Prior art keywords
charging
output
signal
voltage
unit
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CN106385076A (en
Inventor
王富明
刘小勇
黄昌松
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Meizu Technology Co Ltd
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Meizu Technology Co Ltd
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00045Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source

Abstract

The present invention relates to charging input control device, terminal, charging output-controlling device, equipment and control methods.The charging input control device can be used for terminal, it is connect with the charging input connector of the terminal, the charging input connector includes input terminal communication line, it is characterized in that, the charging input control device includes charging coding unit, for sending charging identification signal by the input terminal communication line, and according to Recognition feedback signal corresponding with the charging identification signal is received, export charging switching signal.Communication connection is established by charging input connector, charging out connector, and charging identification signal is sent by charging coding unit, and according to receiving and the corresponding Recognition feedback signal of charging identification signal, output charging switching signal, it is decoded again by the charging decoding unit for the output-controlling device that charges, output voltage, electric current etc. are controlled, have the advantages that communication robust, reliable.

Description

Charging input and output-controlling device, terminal, charging equipment and control method
Technical field
The present invention relates to the control technology field of electric terminal more particularly to a kind of charging input control dresses for terminal It sets and electric terminal.
Background technique
With portable equipment, the especially promotion of intelligent and portable device configuration, portable equipment also gets over the consumption of electricity Come bigger.In recent years, battery capacity lift technique encounters bottleneck under same volume, is no longer satisfied the continuous of intelligent and portable equipment Boat requires, and causes the charging of portable equipment more frequent, and the time expended in charging is also increasingly longer.
In order to shorten the charging time, need to charge to battery using biggish power.In order to realize charging equipment and portable Charging process closed loop between equipment is controllable, solves charge circuit over-voltage, the detection and protection of overcurrent, overheat, and in difference The problems such as compatible and identification is solved between charging equipment, needs to establish information transfer channel between charging equipment and portable equipment And communication mechanism.And the information transfer channel and communication mechanism of the prior art exist and communicate that unstable, reliability is low etc. lacks Point.
Summary of the invention
A kind of reliable, stable charging input control device, end are communicated the technical problem to be solved in the present invention is that providing End, charging output-controlling device, charging equipment and charge control method.
The technical solution adopted by the present invention to solve the technical problems is: providing a kind of charging input control for terminal Device is connect with the charging input connector of the terminal, and the charging input connector includes input terminal communication line, described The input control device that charges includes charging coding unit, for sending charging identification signal by the input terminal communication line, And according to Recognition feedback signal corresponding with the charging identification signal is received, charging switching signal is exported.
Preferably, the charging input control device further includes normal charge recognition unit, input end signal switch unit, And the charge control list being connect with the charging coding unit, normal charge recognition unit and input end signal switch unit Member;
The input end signal switch unit is connected to the charging input connector and the normal charge recognition unit The input end signal switch unit is controlled between charging coding unit, and by the charging control unit, is switched described normal Rule charging recognition unit and charging coding unit are selected one and are connected to the charging input connector;
Also, when the charging coding unit is connected to the charging input connector, the charging control unit is defeated Charging control signal is to the charging coding unit out.
The present invention also provides a kind of electric terminal, including charging input connector, it connect with the charging input connector Normal charge unit and adjust charhing unit and with the normal charge unit and adjust the battery list that connect of charhing unit Member, the charging input connector include input terminal communication line, which further includes aforementioned any charging input Control device;The charging input control device further includes for selecting the selection normal charge list according to charging switching signal Member and adjusting charhing unit are the charging selecting module of battery unit charging.
It is defeated with the charging of the charging equipment the present invention also provides a kind of charging output-controlling device for charging equipment Out connector connect, the charging out connector includes output end communication line, the charging output-controlling device include with The switch control unit and output signal switch unit of the output end communication line connection and the output signal switch unit The charging decoding unit of connection and the output control and detection unit being connect with the charging decoding unit;
The switch control unit feeds back corresponding Recognition feedback signal according to the charging identification signal received;And according to The switching signal that charges controls the output signal switch unit, charging decoding unit and the output end communication described in switching control Route connection disconnects.
Preferably, the output end communication line includes the first signal wire of output end and output end second signal line;
The output signal switch unit include respectively with first signal wire of output end and output end second signal line The 5th input pin, the 6th input pin of connection, the first output pin and the second output pin of short circuit are solved with the charging The third output pin and the 4th output pin of code unit connection, and the 7th control connecting with the switch control unit are drawn Foot;The 7th control pin switch-over control signal, control first output pin and the second output pin respectively with it is described 5th input pin and the connection of the 6th input pin or the third output pin and the 4th output pin are respectively with described the Five input pins and the connection of the 6th input pin.
Preferably, the switch control unit includes voltage comparator, the 6th resistance, the 7th resistance and reference power source;
6th resistance, the 7th resistance are connected between first signal wire of output end and ground;
The positive input of the voltage comparator is connected between the 6th resistance and the 7th resistance;The voltage ratio The reference power source is connected compared with the reverse input end of device;The signal output end of the voltage comparator and the 7th pin connect It connects;
When the voltage comparator detects the voltage of first signal wire of output end through the 6th resistance, the 7th electricity Value after resistance partial pressure is higher than the reference power source, and after continuing setting time, exports the switch-over control signal to the output Signal switching unit inputs the third output pin and the 4th output pin with the 5th input pin and the 6th respectively Pin connection;
When the voltage comparator detects the voltage of first signal wire of output end through the 6th resistance, the 7th electricity Value after resistance partial pressure is lower than the reference power source, and after continuing setting time, exports the switch-over control signal to the output Signal switching unit inputs the third output pin and the 4th output pin with first input pin and second respectively Pin connection.
The present invention also provides a kind of charging equipment, including charging out connector, it connect with the charging out connector Controllable transformation output unit, the charging out connector includes output end communication line, before the charging equipment further includes State any charging output-controlling device;It is described charging output-controlling device output control and detection unit and it is described can The connection of transformation output unit is controlled, and controls the charge power supply of the controllable transformation output unit adjustment output.
The present invention also provides a kind of charge control methods, and can be used for charging equipment is that terminal charges, comprising:
The terminal sends charging identification signal to the charging equipment;
The charging equipment feeds back corresponding Recognition feedback signal according to the charging identification signal;
The terminal exports charging switching signal according to the Recognition feedback signal;
The charging equipment adjusts the charge power supply of output according to the charging switching signal.
Preferably, the charge control method further include:
When the charging input connector of the terminal is connect with the charging out connector of the charging equipment, at first Between in section, the normal charge recognition unit of the terminal carries out the identification of conventional charging device to the charging equipment.
Preferably, in the step of terminal sends charging identification signal to the charging equipment, comprising:
The charging control unit control signal signal switching unit of the terminal by the charging coding unit with it is described The input connector that charges is connected to;
The first signal wire of input terminal of the charging input connector is set a height of second electrical level as the charging to identify Signal, and the second time output that is delayed.
Preferably, the step of the charging equipment feeds back corresponding Recognition feedback signal according to the charging identification signal In, comprising:
The voltage comparator of the charging equipment detects the voltage of the first signal wire of output end through the 6th resistance, the 7th electricity Value after resistance partial pressure is higher than reference power source, and after continuing for the second time, output signal switch unit cuts output end communication line It changes to and is connected to charging decoding unit, and disconnect the first output pin and the second output pin and the output end communication line It connects, generates the Recognition feedback signal on the output end second signal line of the charging out connector.
Preferably, in the step of terminal exports charging switching signal according to the Recognition feedback signal, comprising:
The terminal detects the Recognition feedback signal, and after waiting the third time, by the input terminal second signal Line sets a height of second electrical level, exports as the charging switching signal;
In the step of charging equipment adjusts the charge power supply of output according to the charging switching signal, comprising:
The output end second signal line of the charging out connector accesses the output end second signal line, the charging When equipment detects that the level of the output end second signal line is second electrical level, electricity will be exported by controlling controllable transformation output unit Pressure is adjusted to charging starting voltage, and is exported by the charging out connector to the charging input connector.
Preferably, the charge control method further include:
The charging control unit of the terminal exports charging control signal to the charging coding unit, and by described defeated Enter end communication circuit output;
The charging equipment receives the charging control signal by the output end communication line, and is sent to charging solution Code unit is decoded, and is exported to output control and detection unit, and the controllable transformation output unit adjustment output electricity is controlled Pressure.
Preferably, in the charging control unit output charging control signal of the terminal to the charging coding unit, and It is exported by the input terminal communication line;The charging equipment receives the charge control by the output end communication line Signal, and be sent to charging decoding unit and be decoded, and export to output control and detection unit, control the controllable transformation Output unit adjusted in the step of output voltage, comprising:
When the terminal needs to be turned up the output voltage of the charging equipment, will be inputted by the charging coding unit The voltage of end second signal line is transferred to first voltage from second voltage, and continues the third time, then adjusts back to second voltage again; The charging decoding unit of the charging equipment, which detects on the output end second signal line, to be occurred from second voltage to the first electricity When the negative pulse of pressure, △ V is turned up in the output voltage;
When the terminal needs to turn down the output voltage of the charging equipment, will be inputted by the charging coding unit It holds the voltage of the first signal wire to be transferred to first voltage from second voltage, and continues the third time, then adjust back to second voltage again; The charging decoding unit of the charging equipment, which detects, there is second voltage to the negative of first voltage on output end second signal line When pulse, the output voltage is turned down into △ V;
When the output voltage of the charging equipment is adjusted back to tertiary voltage by terminal needs, compiled by the charging The voltage of the input terminal second signal line is transferred to initial voltage from second voltage by code unit;The charging solution of the charging equipment When code unit detects that the voltage of output end second signal line becomes initial voltage from second voltage, the output voltage drop is controlled As low as tertiary voltage;And/or
When the output voltage of the charging equipment is adjusted back to tertiary voltage by terminal needs or the terminal takes off It is described to fill when the power supply of first signal wire of input terminal is reduced to initial voltage from second voltage when from the charging equipment The voltage comparator of electric equipment perceives positive input voltage lower than reference power source, and control output signal switch unit will be described defeated The first signal wire of outlet and output end second signal line switch to the first output pin and the second output pin of short circuit.
The invention has the following advantages over the prior art: passing through when the use of charging equipment being that terminal is charged Terminal sends charging identification signal to charging equipment, and according to receive with the corresponding Recognition feedback signal of identification signal that charges, Output charging switching signal, charging equipment are adjusted output to the charge power supply of output according to the charging switching signal, have Communication robust, reliable advantage.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the schematic block diagram of charging input control device one embodiment for terminal of the invention;
Fig. 2 is the schematic block diagram of terminal one embodiment of the invention;
Fig. 3 is the schematic block diagram of charging output-controlling device one embodiment of the invention;
Fig. 4 is the schematic block diagram of one embodiment of charging equipment of the invention;
Fig. 5 is the time diagram of one embodiment of charge control method of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, can be used in terminal, the embodiment of the invention discloses a kind of charging input control device 300 with end The charging input connector 301 at end connects, and switches over as needed to the charging rate of terminal.It should be understood that the terminal It is various containing rechargeable battery to can include but is not limited to smart phone, tablet computer, laptop, palm PC, PAD etc. Terminal.The charging input connector 301 of terminal includes input terminal communication line, charging circuit etc..The charging input connector 301 can include but is not limited to USB connector, MicroUSB connector, MiniUSB connector, iPhone connector etc..
The charging input control device 300 includes charging coding unit 316, for being filled by the transmission of input terminal communication line Electric identification signal, and according to Recognition feedback signal corresponding with charging identification signal is received, export charging switching signal.At this In embodiment, which can be fast charge coding unit, and the corresponding charging identification signal issued is fast charge identification Signal, charging switching signal are fast charge switching signal, be may be implemented using the charging coding unit 316 to quick charge and routine The switching of charging.
It should be understood that charging coding unit 316, charging identification signal, charging switching signal can also in other embodiments Think the unit and signal of other charge modes, such as, but not limited to, charge mode can be trickle charge, the charging mould of setting rule Formula;Corresponding, charging coding unit 316 is trickle charge coding unit, sets regular coding unit;The identification signal that charges is trickle charge knowledge Level signal sets regular identification signal;Charging switching signal is trickle charge switching signal, the regular switching signal of setting etc..
Further, which further includes that normal charge recognition unit 315, input end signal are opened Close unit 317, charging control unit 340 etc..The charging control unit 340 and charging coding unit 316, normal charge identification list Member 315 and input end signal switch unit 317 connect.Input end signal switch unit 317 is connected to charging input connector 301 Between normal charge recognition unit 315 and charging coding unit 316, and by 340 control signal signal of charging control unit Switch unit 317, switches normal charge recognition unit 315 and charging coding unit 316 is selected one and connected with charging input connector 301 It is logical.Also, when the coding unit 316 that charges is connected to charging input connector 301, the output charging control of charging control unit 340 Signal processed extremely charging coding unit 316.
As shown in Figure 1, the signal input part of input end signal switch unit 317 is connected to charging input connector 301 The first signal wire of input terminal (DM) and input terminal second signal line (DP).First signal of input end signal switch unit 317 is defeated Outlet (DM1, DP1) is connected to the signal input part of normal charge recognition unit 315.The of input end signal switch unit 317 Binary signal output end (DM2, DP2) is connected to the signal input part of charging coding unit 316.Normal charge recognition unit 315 Signal output end is connected to the signal input part of charging control unit 340, and the signal input part of charging coding unit 316 is connected to The signal input part of charging control unit 340.It should be understood that input end signal switch unit 317, normal charge recognition unit 315, charging coding unit 316 may be integrated into charging control unit 340;It may be independent circuit.
As shown in Fig. 2, being a specific embodiment of electric terminal of the present invention, which includes charging input connection Device 301, input voltage and input current detection unit 307, normal charge unit 309, adjusts charging list at over-voltage over-current protection unit 302 Member 308, connector temperature detecting unit 306, master control and Power Management Unit 330, output voltage current detecting unit 310, electricity Pond connector 350, battery unit 320, charging input control device etc..It should be understood that each unit, module can according to need It is increased and decreased.
The charging input control device can select the charging input control device in above-described embodiment, therefore not go to live in the household of one's in-laws on getting married herein It states.As shown, normal charge unit 309, adjusting charhing unit 308 and charging input connector 301, charging input control dress It sets, battery unit 320 connects.The charging input control device further comprises charging selecting module 318, according to charging switching letter One number is selected to select normal charge unit 309 and adjust charhing unit 308 to be that battery unit 320 charges.
In the present embodiment, the charging input control device in above-described embodiment is corresponding, which is Quick charge unit.The quick charge unit can select existing various fast charge modules, as current multiplication module or other can Realize the module of fast charge function.Certainly, adjusting charhing unit 308 can be normal charge unit, the regular charhing unit of setting.
The charging input connector 301 includes input terminal power supply line, the first signal wire of input terminal, input terminal second signal line Deng.The input terminal of the charging input connector 301 connects charge cable, can access charge power supply and signal of communication.Charging input The power input of the power output end connection over-voltage over-current protection unit 302 of connector 301, over-voltage over-current protection unit 302 Power output end connection input voltage and input current detection unit 307 power input, adjust charhing unit 308 input terminal with And the power input of normal charge unit 309, the protection for over-voltage and over-current.
The first power output end connection master control of normal charge unit 309 and the power input of Power Management Unit 330; Normal charge unit 309 second source output end connection battery connector 350 power input, be battery unit 320 into Row charging.
Wherein, charging input control device can be single-chip microcontroller or the state machine based on digital logic circuit design.It fills Electric input control device can also be integrated among master control and Power Management Unit 330.Wherein, normal charge unit 309 can To be the DCDC DC decompression unit based on inductance charge and discharge in existing high pressure fast charge technology, it is also possible to existing low pressure fast charge Power switch in technology.
Connector temperature detecting unit 306 is used to detect the temperature of charging input connector 301, can be conventional positive temperature Coefficient element or negative temperature coefficient unit etc. are spent, the temperature signal of detection is sent to charging control unit 340 and carries out temperature prison Control control.
The configuration of output voltage current detecting unit 310 is used between battery connector 350 and charging input control device The charging of detection output to battery unit 320 exports the data such as electric current, cell voltage, and exports to charging input control device.
The battery unit 320 includes battery core 313, voltage and current internal resistance detection unit 314, over-voltage and over-current under-voltage protection unit 321, battery temperature detection unit 322 etc. can detecte charge condition, charged state of battery core 313 etc., pass through battery connector 350 are connected to the charging control unit 340 of charging input control device, so that charging control signal is generated, progress charging current, The adjustment of voltage.
Charging input control device 300 can select a selection normal charge unit 309 and be adjusted according to charging switching signal Charhing unit 308 is the charging of battery unit 320, aftermentioned in detail.
As shown in figure 3, be a specific embodiment of charging output-controlling device 100 of the invention, it can be with charging equipment Charging out connector 101 connect, for control export charging current and voltage.The charging of charging equipment exports connection Device 101 includes output end communication line, output end charging circuit etc..The output end communication line of the charging out connector 101 Including the first signal wire of output end (DM) and output end second signal line (DP).The charging out connector 101 may include But be not limited to USB connector, MicroUSB connector, MiniUSB connector, iPhone connector etc..
The charging output-controlling device 100 includes switch control unit, output signal switch unit 116, charging decoding list Member 117 and output control and detection unit 130.
The switch control unit is connect with output end communication line, corresponding according to the charging identification signal feedback received Recognition feedback signal, and output signal switch unit 116 can be controlled according to charging switching signal.
Output signal switch unit 116 is connect with switch control unit, output end communication line, charging decoding unit 117, Switching charging decoding unit 117 is controlled by switch control unit to be connected to or disconnect with output end communication line.
Charging decoding unit 117 is connect with output signal switch unit 116, when being connected to output end communication line, is connect Enter the switching signal that charges, and is decoded, output to output control and detection unit 130, then by output control and detection unit 130 output control signals to charging equipment, and adjustment output electric current, voltage charge to terminal.
As shown, in the present embodiment, the output signal switch unit 116 include respectively with the first signal wire of output end The 5th input pin, the 6th input pin connected with output end second signal line, the first output pin of short circuit and second defeated Pin out, the third output pin and the 4th output pin being connect with charging decoding unit 117, and connect with switch control unit The 7th control pin connect.7th control pin switch-over control signal, controls the first output pin and the second output pin difference Be connected to the 5th input pin and the 6th input pin or third output pin and the 4th output pin respectively with the 5th input Pin and the connection of the 6th input pin.
The switch control unit includes voltage comparator 118, the 6th resistance, the 7th resistance and reference power source 119 etc.. 6th resistance, the 7th resistance are connected between the first signal wire of output end and ground;The positive input of voltage comparator 118 connects Between the 6th resistance and the 7th resistance;The reverse input end of voltage comparator 118 connects reference power source 119;Voltage comparator 118 signal output end is connect with the 7th pin.It should be understood that the reference power source 119 can be the mark of charging equipment output Quasi- voltage.
When voltage comparator 118 detects the voltage of the first signal wire of output end after the 6th resistance, the 7th electric resistance partial pressure Value be higher than reference power source 119, and after continuing setting time, output switch-over control signal to output signal switch unit 116 will Third output pin and the 4th output pin are connected to the 5th input pin and the 6th input pin respectively, so that charging be decoded Unit 117 is connected to the output the first signal wire, output end second signal line.
When voltage comparator 118 detects the voltage of the first signal wire of output end after the 6th resistance, the 7th electric resistance partial pressure Value be lower than reference power source 119, and after continuing setting time, output switch-over control signal to output signal switch unit 116 will Third output pin and the 4th output pin are connected to the first input pin and the second input pin respectively, to disconnect charging solution The connection of code unit 117 and the first signal wire of output end, output end second signal line.
As shown in figure 4, being the schematic diagram of a specific embodiment of charging equipment of the invention, including charging output connects Connect device 101, the controllable transformation output unit connecting with charging out connector 101, charging output-controlling device 100 etc..
Wherein, which can use the charging output-controlling device of any of the above-described embodiment 100, this will not be repeated here.The output control of the charging output-controlling device 100 and the output of detection unit 130 and controllable transformation are single Member connection, and control the charge power supply of controllable transformation output unit adjustment output.
The output end communication line of charging out connector 101 includes the first signal wire of output end (DM) and output end Second signal line (DP).The charging out connector 101 can include but is not limited to USB connector, MicroUSB connector, MiniUSB connector, iPhone connector etc..
In the present embodiment, which connect with AC plug 109, accesses alternating current or other power supplys.It should Controllable transformation output unit includes the AC rectifying and wave-filtering list for being connected to AC plug 109 in turn between the out connector 101 that charges Member 108, source control unit 120, output switch 105 etc. in control unit 107, transformer unit 106, pair.Output control with Detection unit 130 is connect by the way that communication unit 110 is isolated with source side control unit 107, to be controlled according to charging switching signal, charging Signal processed etc. adjusts the input voltage of source side control unit 107, by passing through charging output after the transformation of transformer unit 106 The output of connector 101 to terminal charges.
Further, which can also include DC rectification unit 111, current detecting unit 112, electricity Detection unit 113 etc. is pressed, can detecte voltage, the current signal of output, output is to output control and detection unit 130, to defeated Electric current, voltage are controlled out, to guarantee the stabilization of output electric current, voltage, and play the protection of overcurrent, over-voltage.
Further, connector temperature detecting unit 104 can also be set, connect with charging output-controlling device 100, Out connector 101 charge when the temperature is excessively high, output stop signal to charging output-controlling device 100, and then stop charging.
It should be understood that the controllable transformation output unit can use existing various controllable transformation output circuits, module Or device.
As shown in figure 5, being the charging process time diagram of one embodiment of charge control method of the present invention, the charging It is that terminal charges that control method, which can be used for charging equipment,.Wherein, charging equipment, terminal can be using in above-described embodiments Charging equipment and terminal.It is of course also possible in other similar charging equipment, terminal.
When using the charge control method, terminal sends charging identification signal to charging equipment;Then, charging equipment root Corresponding Recognition feedback signal is fed back according to charging identification signal;Terminal exports charging switching signal according to Recognition feedback signal;It fills Electric equipment adjusts the charge power supply of output according to charging switching signal, and then realizes that the adjustment to charging voltage, electric current exports, real Now to the quick charge of terminal, charge normal or trickle charge etc., to adapt to different charge requirements.
In the present embodiment, when the charging out connector 101 of the charging input connector 301 of terminal and charging equipment connects When connecing, in first time period t0Interior, the normal charge recognition unit 315 of terminal carries out the knowledge of conventional charging device to charging equipment Not.
In the step of terminal sends charging identification signal to charging equipment, specifically: the charging control unit 340 of terminal The first signal wire of input terminal and input terminal second signal line are switched to fast charge coding list by control signal signal switching unit 317 Charging coding unit 316 is connected to by member with charging input connector 301.
And the first signal wire of input terminal for the input connector 301 that charges is set into a height of second electrical level as charging identification letter Number, and the second time t that is delayed1Output.
In the step of charging equipment feeds back corresponding Recognition feedback signal according to charging identification signal, specifically: charging The voltage comparator 118 of equipment detects value of the voltage of the first signal wire of output end after the 6th resistance, the 7th electric resistance partial pressure Higher than reference power source 119, and continue the second time t1Afterwards, output signal switch unit 116 is by output end communication line (output end First signal wire, output end second signal line) be switched to charging decoding unit 117 be connected to, and disconnect the first output pin with The connection of second output pin and output end communication line.At this point, the first signal wire of output end, output end second signal line are no longer It is shorted together, the voltage of the output end second signal line for the out connector 101 that charges drops to 0V, to believe in output end second Recognition feedback signal is generated on number line.
In the step of terminal exports charging switching signal according to Recognition feedback signal, specifically: terminal detects identification Feedback signal, i.e. charging coding unit 316 detect that the voltage of input terminal second signal line drops to 0V, and charging identification is completed.Deng To third time t2Afterwards, input terminal second signal line is set a height of second electrical level V2 by the charging coding unit 316 of terminal, as filling Electric switching signal output.
In the step of charging equipment adjusts the charge power supply of output according to charging switching signal, specifically: charging output The output end second signal line of connector 101 accesses output end second signal line, and charging equipment detects output end second signal When the level of line is second electrical level V2, controllable transformation output unit is controlled by output voltage and is adjusted to charging starting voltage V4, and By charging out connector 101 output to charging input connector 301, and then charge to the battery of terminal.
It should be understood that charging starting voltage V4 can be fast charge starting voltage, trickle charge starting voltage or other chargings The starting voltage of mode.
Further, which can also fill according to the temperature, charging voltage, electric current etc. of battery to generate Electric control signal, and charging control signal extremely charging coding unit 316 is exported by the charging control unit of terminal 340, and pass through The output of input terminal communication line;
Charging equipment by output end communication line receive charging control signal, and be sent to charging decoding unit 117 into Row decoding, and export to output control and detection unit 130, control controllable transformation output unit adjustment output voltage.
It is specific: when terminal needs to be turned up the output voltage of charging equipment, by charging coding unit 316 by input terminal The voltage of second signal line is transferred to first voltage V1 from second voltage V2, and continues third time t3/ 2, is then adjusted back to again Two voltage V2.The charging decoding unit 117 of charging equipment detect on output end second signal line occur from second voltage V2 to When the negative pulse of first voltage V1, △ V is turned up in output voltage.
When terminal needs to turn down the output voltage of charging equipment, input terminal first is believed by charging coding unit 316 The voltage of number line is transferred to first voltage V1 from second voltage V2, and continues third time t3/ 2, second voltage is then adjusted back to again V2;The charging decoding unit 117 of charging equipment detects on output end second signal line second voltage t occur3/ 22 to the first electricity When pressing the negative pulse of V1, output voltage is turned down into △ V;
It, will by charging coding unit 316 when terminal needs the output voltage of charging equipment adjusting back to tertiary voltage The voltage of input terminal second signal line is transferred to initial voltage V0 from second voltage V2;The charging decoding unit 117 of charging equipment is examined When measuring the voltage of output end second signal line becomes initial voltage V0 from second voltage V2, control output voltage is reduced to third Voltage V3;And/or
When terminal needs the output voltage of charging equipment adjusting back to tertiary voltage V3 or terminal is detached from charging equipment When, when the power supply of the first signal wire of input terminal is reduced to initial voltage V0 from second voltage V2, the voltage comparator of charging equipment 118 perceive positive input voltage lower than reference power source 119, control output signal switch unit 116 for the first signal of output end Line and output end second signal line switch to the first output pin and the second output pin of short circuit, so that charging equipment is as common Charging equipment exports normal charging voltage, charges to terminal.
In the present embodiment, VBUS is the power supply line in MICRO USB connector.
V0: ground level 0V;Of course, it is possible to be adjusted as needed.
V1: safe noise gate 1.2V;Of course, it is possible to be adjusted as needed.
V2: high level 2.8V;Of course, it is possible to be adjusted as needed.
1.2 standard charger output voltage of V3:BC, representative value 5V;Of course, it is possible to be adjusted as needed.
V4: fast charge starting voltage, representative value 7V;Of course, it is possible to be adjusted as needed.
△ V charging equipment output voltage adjusts stepping: representative value 50mV;Of course, it is possible to be adjusted as needed.
The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Module or submodule in equipment of the embodiment of the present invention can be combined, divided and deleted according to actual needs.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can It is completed with instructing the relevant hardware of terminal device by program, which can store in a computer readable storage medium In, storage medium may include: flash disk, read-only memory (Read-Only Memory, ROM), random access device (Random Access Memory, RAM), disk or CD etc..
Above disclosed is only presently preferred embodiments of the present invention, cannot limit right of the invention certainly with this Range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and according to right of the present invention Equivalent variations made by it is required that, still belongs to the scope covered by the invention.

Claims (9)

1. a kind of charging output-controlling device for charging equipment, connect with the charging out connector of the charging equipment, The charging out connector includes output end communication line, which is characterized in that the charging output-controlling device includes and institute State the switch control unit and output signal switch unit and output signal switch unit company that output end communication line connects The charging decoding unit connect and the output control and detection unit that are connect with the charging decoding unit;
The switch control unit feeds back corresponding Recognition feedback signal according to the charging identification signal received;And according to charging Switching signal controls the output signal switch unit, charging decoding unit and the output end communication line described in switching control Connection disconnects;
The output end communication line includes the first signal wire of output end and output end second signal line;
The output signal switch unit includes connecting respectively with first signal wire of output end and output end second signal line The 5th input pin, the 6th input pin, the first output pin and the second output pin of short circuit decode single with the charging The third output pin and the 4th output pin of member connection, and the 7th control pin being connect with the switch control unit; The 7th control pin switch-over control signal controls first output pin and the second output pin respectively with the described 5th Input pin and the connection of the 6th input pin or the third output pin and the 4th output pin are defeated with the described 5th respectively Enter pin and the connection of the 6th input pin.
2. charging output-controlling device according to claim 1, which is characterized in that the switch control unit includes voltage Comparator, the 6th resistance, the 7th resistance and reference power source;
6th resistance, the 7th resistance are connected between first signal wire of output end and ground;
The positive input of the voltage comparator is connected between the 6th resistance and the 7th resistance;The voltage comparator Reverse input end connect the reference power source;The signal output end of the voltage comparator and the 7th control pin connect It connects;
When the voltage comparator detects the voltage of first signal wire of output end through the 6th resistance, the 7th resistance point Value after pressure is higher than the reference power source, and after continuing setting time, exports the switch-over control signal to the output signal Switch unit by the third output pin and the 4th output pin respectively with the 5th input pin and the 6th input pin Connection;
When the voltage comparator detects the voltage of first signal wire of output end through the 6th resistance, the 7th resistance point Value after pressure is lower than the reference power source, and after continuing setting time, exports the switch-over control signal to the output signal Switch unit by the third output pin and the 4th output pin respectively with first output pin and the second output pin Connection.
3. a kind of charging equipment is exported including charging out connector, the controllable transformation connecting with the charging out connector Unit, the charging out connector includes output end communication line, which is characterized in that the charging equipment further includes that right is wanted Seek the described in any item charging output-controlling devices of 1-2;It is described charging output-controlling device output control and detection unit with The controllable transformation output unit connection, and control the charge power supply of the controllable transformation output unit adjustment output.
4. a kind of charge control method, can be used for charging equipment is that terminal charges characterized by comprising
The terminal sends charging identification signal to the charging equipment;
The charging equipment feeds back corresponding Recognition feedback signal according to the charging identification signal;
The terminal exports charging switching signal according to the Recognition feedback signal;
The charging equipment adjusts the charge power supply of output according to the charging switching signal;
In the step of terminal sends charging identification signal to the charging equipment, comprising:
The charging control unit control signal signal switching unit of the terminal will charging coding unit and charging input Connector connection;
The first signal wire of input terminal of the charging input connector is set into a height of second electrical level as the charging identification signal, And the second time output that is delayed.
5. charge control method according to claim 4, which is characterized in that the charge control method further include:
When the charging input connector of the terminal is connect with the charging out connector of the charging equipment, in first time period Interior, the normal charge recognition unit of the terminal carries out the identification of conventional charging device to the charging equipment.
6. charge control method according to claim 5, which is characterized in that known in the charging equipment according to the charging Level signal was fed back in the step of corresponding Recognition feedback signal, comprising:
The voltage comparator of the charging equipment detects the voltage of the first signal wire of output end through the 6th resistance, the 7th resistance point Value after pressure is higher than reference power source, and after continuing for the second time, output end communication line is switched to by output signal switch unit It is connected to charging decoding unit, and disconnects the company of the first output pin and the second output pin and the output end communication line It connects, generates the Recognition feedback signal on the output end second signal line of the charging out connector.
7. charge control method according to claim 6, which is characterized in that believed in the terminal according to the Recognition feedback Number output charging switching signal the step of in, comprising:
The terminal detects the Recognition feedback signal, and after waiting the third time, the input terminal second signal line is set A height of second electrical level is exported as the charging switching signal;
In the step of charging equipment adjusts the charge power supply of output according to the charging switching signal, comprising:
The output end second signal line of the charging out connector accesses the output end second signal line, the charging equipment When the level for detecting the output end second signal line is second electrical level, controllable transformation output unit is controlled by output voltage tune Section extremely charging starting voltage, and exported by the charging out connector to the charging input connector.
8. charge control method according to claim 7, which is characterized in that the charge control method further include:
The charging control unit of the terminal exports charging control signal to the charging coding unit, and passes through the input terminal Communication line output;
The charging equipment receives the charging control signal by the output end communication line, and it is single to be sent to charging decoding Member is decoded, and is exported to output control and detection unit, is controlled the controllable transformation output unit and is adjusted output voltage.
9. charge control method according to claim 8, which is characterized in that exported in the charging control unit of the terminal Charging control signal is exported to the charging coding unit, and by the input terminal communication line;The charging equipment passes through The output end communication line receives the charging control signal, and is sent to charging decoding unit and is decoded, and export extremely Output control and detection unit control in the step of controllable transformation output unit adjusts output voltage, comprising:
When the terminal needs to be turned up the output voltage of the charging equipment, by the charging coding unit by input terminal The voltage of binary signal line is transferred to first voltage from second voltage, and continues the third time, then adjusts back to second voltage again;It is described The charging decoding unit of charging equipment, which detects on the output end second signal line, to be occurred from second voltage to first voltage When negative pulse, △ V is turned up in the output voltage;
When the terminal needs to turn down the output voltage of the charging equipment, by the charging coding unit by input terminal The voltage of one signal wire is transferred to first voltage from second voltage, and continues the third time, then adjusts back to second voltage again;It is described The charging decoding unit of charging equipment detects occur negative pulse of the second voltage to first voltage on output end second signal line When, the output voltage is turned down into △ V;
When the output voltage of the charging equipment is adjusted back to tertiary voltage by terminal needs, encoded by the charging single The voltage of the input terminal second signal line is transferred to initial voltage from second voltage by member;The charging of the charging equipment decodes single When member detects that the voltage of output end second signal line becomes initial voltage from second voltage, controls the output voltage and be reduced to Tertiary voltage;And/or
When the output voltage of the charging equipment is adjusted back to tertiary voltage by terminal needs or the terminal is detached from institute When stating charging equipment, when the power supply of first signal wire of input terminal is reduced to initial voltage from second voltage, the charging is set Standby voltage comparator perceives positive input voltage lower than reference power source, controls output signal switch unit for the output end First signal wire and output end second signal line switch to the first output pin and the second output pin of short circuit.
CN201610951350.5A 2016-10-26 2016-10-26 Charging input and output-controlling device, terminal, charging equipment and control method Active CN106385076B (en)

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CN106655415B (en) * 2017-03-14 2021-01-22 成都智朴思互联科技有限公司 Intelligent universal charging identification and control device based on USB interface
CN109196751A (en) * 2017-10-20 2019-01-11 华为技术有限公司 A kind of charging unit and terminal
CN110783978A (en) * 2019-10-18 2020-02-11 安徽静深实业有限公司 Method and device for adjusting charging speed of electronic product

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