CN106253394B - Charger - Google Patents
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- CN106253394B CN106253394B CN201610702867.0A CN201610702867A CN106253394B CN 106253394 B CN106253394 B CN 106253394B CN 201610702867 A CN201610702867 A CN 201610702867A CN 106253394 B CN106253394 B CN 106253394B
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- 238000001914 filtration Methods 0.000 claims abstract description 22
- 230000005611 electricity Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 15
- 239000004065 semiconductor Substances 0.000 description 25
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H02J7/0003—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of chargers, belong to application of electronic technology field.It include: rectification filtering unit, the first power supply unit, the second power supply unit, first switch unit, second switch unit and two charger output ends in parallel, two charger output ends are respectively the first charger output end and the second charger output end；The input terminal of rectification filtering unit and the output end of power supply connect, its output end is connect with the input terminal of the first power supply unit, the output end of first power supply unit is connect with two switch units respectively, first switch unit is connect with the output end of the second power supply unit and the first charger output end respectively, second switch unit is connect with the input terminal of the second power supply unit and the second charger output end respectively, and the output end of the second power supply unit is also connected with the second charger output end.The problem of it is many kinds of that the present invention is able to solve charger, poor universality.The present invention is used for the charging of terminal.
Description
Technical field
The present invention relates to application of electronic technology field, in particular to a kind of charger.
Background technique
In order to promote charge efficiency, user experience is improved, current charger is varied.
Existing charger mainly includes with Types Below: using the charger of the parallel charging modes of high pressure, the charger is defeated
Voltage may be up to 20V (volt) out；The charger to be charged using low-voltage, high-current mode；Using different types of battery parallel way
The charger of charging.
But current charger is many kinds of, poor universality.
Summary of the invention
The many kinds of poor universality of charger in order to solve the problem of the prior art, the embodiment of the invention provides one
Kind charger.The technical solution is as follows:
On the one hand, a kind of charger is provided, comprising:
Rectification filtering unit, two power supply units, two switch units and two charger output ends in parallel, described two
A power supply unit is respectively the first power supply unit and the second power supply unit electric unit, and described two switch units are respectively first to open
It closes unit and second switch unit, described two charger output ends is respectively that the first charger output end and the second charger are defeated
Outlet；
The output end of the input terminal of the rectification filtering unit and power supply connects, the output end of the rectification filtering unit with
The input terminal of first power supply unit connects；
The output end of first power supply unit is connect with two switch units respectively, the first switch unit respectively with
The output end of second power supply unit is connected with the first charger output end, the second switch unit respectively with it is described
The input terminal of second power supply unit is connected with the second charger output end, and the output end of second power supply unit also and
The second charger output end connection；
The rectification filtering unit, for converting high-voltage direct current for the alternating current of the power input；
First power supply unit, the high-voltage direct current for inputting the rectification filtering unit are converted into low-pressure direct
Galvanic electricity stream；
Second power supply unit, the DC current for inputting first power supply unit are converted into DC current；
The first switch unit is used to carry out the output of the first charger output end Yu first power supply unit
It holds, the path switching between the output end of second power supply unit, the second switch unit is supplied for carrying out described first
Path switching between the input terminal of the output end of electric unit and second power supply unit, the second charger output end.
Technical solution provided in an embodiment of the present invention has the benefit that
Charger provided in an embodiment of the present invention, since two power supply units are arranged, two switch units are opened by this two
Unit is closed to adjust the path between two power supply units and two charger output ends, finally realizes two charger output ends
Different voltage is exported in different scenes, so that compatible different charge type, improves the versatility of charger.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of the charger provided in the related technology；
Fig. 2 is a kind of structural schematic diagram of charger provided in an embodiment of the present invention；
Fig. 3 is a kind of a kind of switch state schematic diagram of charger provided in an embodiment of the present invention；
Fig. 4 is a kind of another switch state schematic diagram of charger provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of charger provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of charger provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The charging technique that current charger uses can substantially be divided into common charging technique and (support BC1.2 charge protocol
Technology, output voltage 5V), high-voltage charging technology (technology as supported QC2.0 fast charge agreement and QC3.0 fast charge agreement, or
Person support PE+ fast charge agreement technology), low-voltage, high-current charging technique (also referred to as low-pressure direct fills technology, for example, support VOOC dodge
Fill the technology of agreement), it is substantially the same using the structure of the charger of above-mentioned various charging techniques.
Fig. 1 is a kind of structural schematic diagram of the charger 0 provided in the related technology, as shown in Figure 1, the charger 0 can be with
Include: the power port 01, rectification filtering unit 02 and power supply unit 03 being sequentially connected electrically, the input terminal of the power port 01 with
Power supply 1 connects, and power supply unit 03 may include sequentially connected switching tube 031, transformer 032 and internal rectification filtering unit
034, optionally, power supply unit 03 can also include integrated regulator (English: Integrated Circuit；Referred to as: IC)
033, pressure stabilizing IC033 are located between transformer 032 and internal rectification filtering unit 034, and further, charger 0 can be with
Including control unit 04, which connect with switching tube 031, pressure stabilizing IC033 and charger output end Vbus respectively, should
Control unit 04 can be communicated with terminal.
But although the overall structure of existing charger 0 is essentially identical, in order to support different charge protocols,
In terms of interface structure and accessory, the details of various chargers is had nothing in common with each other again.Which results in many kinds of of charger, general
Property is lower, can not be compatible with various charge protocols.
Fig. 2 is a kind of structural schematic diagram of charger 2 provided in an embodiment of the present invention, as shown in Figure 2, comprising:
27, two power supply units of rectification filtering unit, two switch units and two charger output ends in parallel, this two
A power supply unit is respectively the first power supply unit 21, the second power supply unit 22, and two switch units are respectively first switch unit
23 and second switch unit 24, two charger output ends be respectively that the first charger output end Vbus1 and the second charger are defeated
Outlet Vbus2；
The input terminal of rectification filtering unit 27 is connect with the output end of power supply 1, the output end of rectification filtering unit 27 and
The input terminal of one power supply unit 21 connects；
The output end of first power supply unit 21 is connect with two switch units respectively, and first switch unit 23 is respectively with second
The output end of power supply unit 22 and the first charger output end Vbus1 connection, second switch unit 24 are single with the second power supply respectively
The input terminal of member 22 and the second charger output end Vbus2 connection, and the output end of the second power supply unit 22 also charges with second
The Vbus2 connection of device output end；
Rectification filtering unit 27, the alternating current for inputting power supply 1 is converted into high-voltage direct current, namely has and hand over
Circulate direct current (English: Alternating Current/Direct Current；Referred to as: AC/DC) function；
First power supply unit 21, the high-voltage direct current for inputting rectification filtering unit 27 are converted into low-voltage DC
Stream, can be realized the coarse adjustment of voltage, and during carrying out the coarse adjustment of voltage, the first power supply unit 21 can export fixed electricity
Pressure, can also export adjustable voltage.First power supply unit 21 is the realization voltage transformation similar with current common charger
Structure, structure mainly can may include with reference to the power supply unit 03 in charger shown in FIG. 1, the first power supply unit 21
Transformer, power tube and its control chip, regulator control loop etc..Output adjustable voltage, refers to described in the embodiment of the present invention
It is the adjustable voltage of output, that is to say can export the voltage being adjusted for the different voltages demand of terminal.
Second power supply unit 22, the DC current for inputting the first power supply unit 21 are converted into DC current, and second
Power supply unit 22 is powered using the output of the first power supply unit, has DC to DC (English: Direct Current/
Direct Current；Referred to as: DC/DC) function or low pressure difference linear voltage regulator (English: low dropout
regulator；Function referred to as: LDO) can carry out merely the transmission of direct current, can also carry out the fine tuning of voltage, into
During the fine tuning of row voltage, the second power supply unit can export fixed voltage, can also export adjustable voltage.
First switch unit 23 be used for carry out the first charger output end Vbus1 and the first power supply unit 21 output end,
Path switching between the output end of second power supply unit 22, second switch unit 24 is for carrying out the defeated of the first power supply unit 21
Path switching between the input terminal of outlet and the second power supply unit 22, the second charger output end Vbus2.First switch unit
23 and second switch unit 24 effect be similar to single-pole double-throw switch (SPDT), for carrying out power source path switching.
In conclusion charger provided in an embodiment of the present invention, due to being arranged two power supply units, two switch units,
The path between two power supply units and two charger output ends is adjusted by two switch units, final realization two is filled
Electrical output terminal exports different voltage in different scenes, so that compatible different charge type, improves the versatility of charger.
As shown in Fig. 2, output end and the output of the first charger of the first power supply unit 21 is connected in first switch unit 23
The connection (namely terminal A and E conducting in Fig. 2) of Vbus1 is held, and the defeated of the first power supply unit 21 is connected in second switch unit 24
When outlet is with connection (namely the endpoint F and D in Fig. 2 are connected) of the second charger output end Vbus2, the first charger output end
Vbus1 and the second charger output end Vbus2 export first voltage.Switch state as shown in Figure 2 can be of the invention real
The default conditions (that is to say that charger keeps the state in general) for applying charger in example, at this point, charger is by first
Power supply unit 21 powers for terminal, the first charger output end Vbus1 and the second charger output end Vbus2 parallel output,
The output voltage of default is 5V.
As shown in figure 3, output end and the output of the first charger of the first power supply unit 21 is connected in first switch unit 23
The connection (namely terminal A and E conducting in Fig. 3) of Vbus1 is held, and the defeated of the first power supply unit 21 is connected in second switch unit 24
When outlet is with connection (namely the endpoint F and C in Fig. 3 are connected) of the input terminal of the second power supply unit 22, the output of the first charger
Vbus1 is held to export first voltage, the second charger output end Vbus2 exports second voltage, and the second power supply unit 22 is supplied first
The voltage that electric unit 21 exports has carried out fine tuning.
As shown in figure 4, output end and the output of the first charger of the second power supply unit 24 is connected in first switch unit 23
The connection (namely terminal B and E conducting in Fig. 4) of Vbus1 is held, and the defeated of the first power supply unit 21 is connected in second switch unit 24
When outlet is with connection (namely the endpoint F and C in Fig. 4 are connected) of the input terminal of the second power supply unit 22, the output of the first charger
End Vbus1 and the second charger output end Vbus2 exports second voltage, and second voltage is less than first voltage.
Further, as shown in Figures 2 to 4, the charger 2 further include: control unit 25, the control unit 25 respectively with
Two switch unit connections carry out path switching for controlling two switch units.
Specifically, control unit 25 is preset with Handshake Protocol (also referred to as charge protocol) and switch state corresponding relationship, this is right
Relation record is answered to have multiple groups Handshake Protocol and its corresponding switch state, which can be with the central processing unit of terminal
(English: Central Processing Unit；It referred to as: CPU) is communicated, in the letter of shaking hands for receiving terminal transmission
After number, the corresponding target protocol of handshake is determined, inquiry Handshake Protocol and switch state corresponding relationship obtain target protocol pair
The target switch state answered controls two switch units according to the target switch state and carries out path switching.It that is to say, control is single
Member 25 is connect with the first power supply unit 21 and the second power supply unit 22 respectively, controls two switch units according to target switch state
Path switching is carried out, to control the voltage of the first power supply unit 21 and the output of the second power supply unit 22.For example, control unit 25
The voltage of the first charger output end Vbus1 output 5V of demanding terminal charger is determined according to the handshake that terminal is sent, the
Two charger output end Vbus2 export the voltage of 4V, then control unit 25 controls two power supply units and carries out corresponding electricity respectively
Pressure output.Wherein, Handshake Protocol can be as shown in table 1 with switch state corresponding relationship.For the ease of reader's understanding, table 1 also shows
Example property is added to the corresponding charge type of Handshake Protocol, and in practical application, the charge type can not be recorded in control unit 25
Type.
Table 1
Using switch state as shown in Figure 2, under the control of control unit 25, the first charger output end Vbus1 and
Second charger output end Vbus2 parallel output, the voltage of usually default output are 5V, and charger compatibility may be implemented and commonly fill
Power technology and high-voltage charging technology that is to say the compatible output for the voltage for realizing common charge type and high-voltage charging type.
Using switch state as shown in Figure 3, under the control of control unit 25, it is different that charger can export two-way
Voltage can be used to charge for different types of battery, alternatively, being to charge all the way for battery (by the second charger output end
Vbus2 exports adjustable voltage to charge), another way is that the system power supply of terminal (is exported solid by the first charger output end Vbus1
Constant voltage is powered) etc..Wherein the first charger output end Vbus1 is powered by the first power supply unit 21, the first power supply unit 21
Under the control of control unit 25, certain voltage is exported；Meanwhile second charger output end Vbus2 by via first power supply
The second power supply unit 22 power supply that unit 21 is powered, the second power supply unit 22 can be controlled the control of unit 25 at this time,
Under the control of control unit 25, output voltage can change with the variation of terminal battery voltage, export higher quality
Voltage.
Using switch state as shown in Figure 4, under the control of control unit 25, supplied by the second power supply unit 22 first
The voltage of electric unit 21 carries out fine tuning, it can be achieved that the first charger output end Vbus1, the second charger output end Vbus2 are in parallel
Output fills terminal charge (namely the compatible low pressure of type for low-pressure direct compared with the higher voltage of 21 voltage quality of the first power supply unit
Large current charge technology).
As shown in figure 4, the output voltage of the second power supply unit 22 in Fig. 4 is adjustable, and the first power supply unit 21
The protocol integrated test system of output-controlled unit processed 25 can be preset two kinds of situations: fixed or the second power supply unit 22 is followed to export
Voltage change and change.Wherein, the situation for following 22 output voltage of the second power supply unit to change and changing, control mode are to work as
Control unit 25 controls the output adjustment that the first power supply unit 21 is also controlled while the voltage adjustment of the second power supply unit 22, this
When adjust the first power supply unit 21 output a little higher than second supply voltage of the first supply voltage, to improve the effect of charger
Rate reduces fever, improves the service life of charger.
According to table 1, the first power supply unit 21 is under the control of control unit 25 (supporting different agreements), both can be with
Support common 5V voltage output, the adjustable voltage that can also be exported according to agreements such as QC2.0 or QC3.0 or PE+.Second power supply
Unit 22 can both export fixed voltage under the control of control unit 25, can also export adjustable voltage.
As shown in Figures 2 to 4, which can also include: power port 26, the output of power port 26 and power supply 1
End connection, the input terminal of rectification filtering unit 27 are connect with power port 26.
In practical application, the structure of two power supply units and two switch units can there are many, it is exemplary,
First power supply unit 21 can be the unit that high voltage direct current is converted to low-voltage direct, comprising: pulse width modulates (English
Text: Pulse Width Modulation；Referred to as: PWM) or pulse frequency modulated is (English: Pulse Frequency
Modulation；It referred to as: PFM) controls chip and pressure stabilizing controls chip.
Second power supply unit 22 includes digital potentiometer and DC/DC chip or the second power supply unit 22 includes number electricity
The voltage regulator circuit of the other forms such as position meter and low pressure difference linear voltage regulator.
Two switch units are the Integrated circuit IC of power switch tube or simulated power switch.The power switch tube can be with
For metal-oxide semiconductor (MOS) (English: Metal Oxide Semiconductor；Referred to as: MOS) pipe or triode.
Optionally, each switch unit can be made of discrete metal-oxide-semiconductor, usually p-type metal-oxide-semiconductor, first switch unit
23 include that the first pole is connect with the output end of the first power supply unit 21, and the second pole is connect with the first charger output end Vbus1
The first metal-oxide-semiconductor M1, the first pole connect with the output end of the second power supply unit 22, and the second pole and the first charger output end
Second metal-oxide-semiconductor M2 of Vbus1 connection.
Second switch unit 24 includes that the first pole is connect with the output end of the first power supply unit 21, and the second pole is filled with second
The third metal-oxide-semiconductor M3 of electrical output terminal Vbus2 connection and the first pole are connect with the output end of the first power supply unit 21, and the
The 4th metal-oxide-semiconductor M4 that two poles are connect with the input terminal of the second power supply unit 22.
Wherein, the grid of each metal-oxide-semiconductor is connect with control unit 25；When the metal-oxide-semiconductor in figure is p-type metal-oxide-semiconductor, each
The first of metal-oxide-semiconductor extremely drains, the extremely source electrode of the second of each metal-oxide-semiconductor.
As shown in figure 5, the first power supply unit 21 is used for the coarse adjustment of voltage, it may include: FAN501 chip and FAN6230A
The pin connection type of chip, chip refers to Fig. 5.Wherein: FAN501 chip is used to provide a duty ratio for circuit adjustable
Square wave, and stablize to maintenance voltage；FAN6230A chip plays the role of assisting pressure stabilizing for maintaining constant pressure to adjust.
As shown in fig. 6, the second power supply unit is used for the fine tuning of voltage, it may include: MCP4561 chip, TPS53513 core
Piece and LDO.Wherein, TPS53513 chip is mainly used for reducing input voltage, realizes the fine tuning of voltage, exports higher quality
Voltage；MCP4561 chip is mainly used for establishing voltage branch circuit, provides feedback voltage for TPS53513 chip, to realize
Closed loop adjustment effect of the TPS53513 chip to output voltage；LDO is mainly used for pressure stabilizing, and providing stabilization for MCP4561 chip can
The operating voltage leaned on.The pin connection type of chip in second power supply unit refers to Fig. 6.Wherein, b1, b2 and b3 in Fig. 6
It connects one to one respectively with a1, a2 and a3 in Fig. 5.
In the first switch unit 23 and second switch unit 24 of Fig. 6, each switch unit includes two discrete MOS
Pipe, effect can be with reference to the introductions in above-mentioned switch unit.The structure of control unit 25 can there are many, exemplary, the control
Unit 25 processed may include: micro-control unit (English: Microcontroller Unit；Referred to as: MCU) 251, level conversion electricity
Road 252 and protocol identification chip 253.Wherein, MCU251 can for single-chip microcontroller etc., respectively with the level shifting circuit 252 and
The protocol identification chip 253 connects.
As shown in Figure 5 and Figure 6, MCU251 can be communicated with the CPU of terminal, for receiving holding for terminal transmission
After hand signal, the corresponding target protocol of handshake is determined, inquiry Handshake Protocol and switch state corresponding relationship obtain target association
Discuss corresponding target switch state；Then, MCU251, which is also used to control two switch units according to target switch state, carries out road
Diameter switching；MCU251 can be also used for the voltage output that triggered protocol identification chip 253 controls the first power supply unit 21, alternatively,
The voltage output for controlling the second power supply unit 22 controls the voltage output of the first power supply unit 21 by protocol identification chip 253.
After MCU251 receives the common charging and the handshake of high-voltage charging of terminal transmission, this handshake is determined
Corresponding target protocol obtains corresponding target switch state by inquiry and is in first switch state, corresponds to as shown in Figure 2
Switch state, i.e. the first metal-oxide-semiconductor M1 conducting of first switch unit 23, the third metal-oxide-semiconductor M3 conducting of second switch unit 24, the
The output end of one power supply unit 21 by the first metal-oxide-semiconductor M1, third metal-oxide-semiconductor M3 respectively with the first charger output end Vbus1 and
Second charger output end Vbus2 connection.The first charger output end Vbus1 and the second charger output end Vbus2 be simultaneously at this time
Connection output, output first voltage, the output voltage of default are 5V, and charger is supplied by the first power supply unit 21 for terminal at this time
Electricity may be implemented the compatible common charging technique of charger and high-voltage charging technology, that is to say and realize common charge type and high pressure
The compatible output of the voltage of charge type.
After MCU251 receives the handshake of low-voltage, high-current charging of terminal transmission, determine that this handshake is corresponding
Target protocol, obtain corresponding target switch state by inquiry and be in third switch state, correspond to and switch as shown in Figure 4
State, i.e. the second metal-oxide-semiconductor M2 conducting of first switch unit 23, the 4th metal-oxide-semiconductor M4 conducting of second switch unit, the second power supply
The output end of unit 22 is connect with the first charger output end Vbus1 by the second metal-oxide-semiconductor M2, the output of the first power supply unit 21
End is connect with the input terminal of the second power supply unit 22 by the 4th metal-oxide-semiconductor M4.MCU251 passes through the second power supply unit of control at this time
MCP4561 chip provides feedback voltage in 22, and TPS53513 chip exports corresponding voltage by the feedback voltage, with realization pair
The adjusting of second power supply unit, 22 output voltage.MCU251 passes through Predistribution Algorithm control protocol identification chip according to protocol requirement
253 realize the control to the first power supply unit 21 by the 5V voltage output of default.At this point, being supplied by the second power supply unit 22 first
The voltage of electric unit 21 carries out fine tuning, and the output voltage of the second power supply unit 22 is adjustable.First charger output end
Vbus1 and the second charger output end Vbus2 exports second voltage, and second voltage is less than first voltage.It can be achieved first to fill
Electrical output terminal Vbus1, the second charger output end Vbus2 parallel output are compared with the higher electricity of 21 voltage quality of the first power supply unit
Pressure fills the terminal charge (namely compatible low-voltage, high-current charging technique) of type for low-pressure direct.
Further, as shown in fig. 6, control unit 25 can also include third switch unit 254 and the 4th switch unit
255.At this point, MCU251 by Predistribution Algorithm control protocol identification chip 253 control the first power supply unit 21 output voltage with
Change with the variation of 22 output voltage of the second power supply unit, control mode is when MCU251 controls the second power supply unit 22
Voltage also controls the output adjustment of the first power supply unit 21 while adjustment, adjust the first of the first power supply unit 21 output at this time
A little higher than second supply voltage of supply voltage.
When MCU251 receive terminal transmission be the handshake of New-type charge type shown in table 1 after, determine that this holds
The corresponding target protocol of hand signal obtains corresponding target switch state by inquiry and is in second switch state, corresponds to such as
4th metal-oxide-semiconductor M4 of switch state shown in Fig. 3, i.e. the first metal-oxide-semiconductor M1 conducting of first switch unit 23, second switch unit 24
Conducting, the output end of the first power supply unit 21 are connect with the first charger output end Vbus1 by the first metal-oxide-semiconductor M1, and first supplies
The output end of electric unit 21 is connect with the input terminal of the second power supply unit 22 by the 4th metal-oxide-semiconductor M4, and MCU251 passes through control at this time
It makes MCP4561 chip in the second power supply unit 22 and feedback voltage is provided, TPS53513 chip is corresponded to by feedback voltage output
Voltage, to realize adjusting to 22 output voltage of the second power supply unit.Exemplary, which can be BC1.2
One of agreements such as charge protocol, QC2.0 fast charge agreement, QC3.0 fast charge agreement, PE+ fast charge agreement, PD charge protocol with
The assembled state etc. that class low-pressure direct fills agreement is filled in VOOC sudden strain of a muscle.The first charger output end Vbus1 exports first voltage, second at this time
Charger output end Vbus2 exports second voltage, and the voltage that the second power supply unit 22 exports the first power supply unit 21 carries out
Fine tuning.Under the switch state, charger can export the different voltage of two-way, can be used to fill for different types of battery
Electricity, alternatively, being all the way that battery charges and (exports adjustable voltage by the second charger output end Vbus2 to charge), another way is eventually
The system power supply (fixed voltage is exported by the first charger output end Vbus1 to power) at end etc..Wherein the first charger exports
End Vbus1 is powered by the first power supply unit 21, the second charger output end Vbus2 by power via the first power supply unit 21 the
The power supply of two power supply units 22, the second power supply unit 22 can be defeated under the control of MCU251 by the control of MCU251 at this time
Voltage can change with the variation of terminal battery voltage out, export the voltage of higher quality.
It should be noted that if third switch unit 254 and the 4th switch unit 255 are not present, then protocol identification chip
According to the 5V voltage output of default, the output of the first charger output end Vbus1 at this time is 253 the first power supply units 21 of control
The output of 5V, the second charger output end Vbus2 are adjustable voltage；If third switch unit 254 and the 4th switch unit 255 are deposited
, then MCU251 according to protocol requirement by Predistribution Algorithm control protocol identification chip 253 control the first power supply unit 21 it is defeated
Voltage out.
Charger provided in an embodiment of the present invention can be compatible with rapid nitriding (the high-voltage charging technology of current main-stream
With low-voltage, high-current charging technique), also, can also realize different output voltages, it charges for different types of end cell
Or the system power supply while end cell charging to be terminal, so that compatible different charge type, improves the logical of charger
The property used.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of charger characterized by comprising
Rectification filtering unit, two power supply units, two switch units and two charger output ends in parallel, described two confessions
Electric unit is respectively the first power supply unit and the second power supply unit, and described two switch units are respectively first switch unit and
Two switch units, described two charger output ends are respectively the first charger output end and the second charger output end；
The output end of the input terminal of the rectification filtering unit and power supply connects, the output end of the rectification filtering unit with it is described
The input terminal of first power supply unit connects；
The output end of first power supply unit is connect with two switch units respectively, the first switch unit respectively with it is described
The output end of second power supply unit is connected with the first charger output end, and the second switch unit is respectively with described second
The input terminal of power supply unit is connected with the second charger output end, and the output end of second power supply unit also with it is described
The connection of second charger output end；
The rectification filtering unit, for converting high-voltage direct current for the alternating current of the power input；
First power supply unit, the high-voltage direct current for inputting the rectification filtering unit are converted into low-voltage DC
Stream；
Second power supply unit, the DC current for inputting first power supply unit are converted into DC current；
The first switch unit is used to carry out output end, the institute of the first charger output end and first power supply unit
The path switching between the output end of the second power supply unit is stated, the second switch unit is for carrying out first power supply unit
Output end and the input terminal of second power supply unit, the second charger output end between path switch；
The output end of first power supply unit and the company of the first charger output end are connected in the first switch unit
It connects, and the output end of first power supply unit and the connection of the second charger output end is connected in the second switch unit
When, the first charger output end and the second charger output end export first voltage；
The output end of second power supply unit and the company of the first charger output end are connected in the first switch unit
It connects, and the output end of first power supply unit and the input terminal of second power supply unit is connected in the second switch unit
When connection, the first charger output end and the second charger output end export second voltage, the second voltage
Less than the first voltage；
The output end of first power supply unit and the company of the first charger output end are connected in the first switch unit
It connects, and the output end of first power supply unit and the input terminal of second power supply unit is connected in the second switch unit
When connection, the first charger output end exports the first voltage, the second charger output end output described second
Voltage.
2. charger according to claim 1, which is characterized in that the charger further include: control unit, the control
Unit is connect with described two switch units respectively, carries out path switching for controlling described two switch units.
3. charger according to claim 2, which is characterized in that described control unit is preset with Handshake Protocol and switch shape
State corresponding relationship, for determining the corresponding target protocol of the handshake, looking into after the handshake for receiving terminal transmission
It askes the Handshake Protocol and switch state corresponding relationship and obtains the corresponding target switch state of the target protocol, according to the mesh
It marks switch state and controls described two switch units progress path switchings.
4. charger according to claim 2 or 3, which is characterized in that described control unit is powered with described first respectively
Unit is connected with second power supply unit, for controlling the electricity of first power supply unit and second power supply unit output
Pressure.
5. charger according to claim 1, which is characterized in that
First power supply unit includes: pulse width modulation (PWM) or pulse frequency modulated PFM control chip and pressure stabilizing control core
Piece.
6. charger according to claim 1, which is characterized in that second power supply unit includes digital potentiometer and straight
Circulate direct current DC/DC chip；
Alternatively, second power supply unit includes digital potentiometer and low pressure difference linear voltage regulator LDO.
7. charger according to claim 1, which is characterized in that
Described two switch units are the Integrated circuit IC of power switch tube or simulated power switch.
8. charger according to claim 3, which is characterized in that
Described control unit includes: micro-control unit MCU, level shifting circuit and protocol identification chip, the MCU respectively with institute
Level shifting circuit is stated to connect with the protocol identification chip,
The MCU is used for after the handshake for receiving terminal transmission, is determined the corresponding target protocol of the handshake, is looked into
It askes the Handshake Protocol and switch state corresponding relationship and obtains the corresponding target switch state of the target protocol；
The MCU, which is also used to control described two switch units according to the target switch state, carries out path switching；
The MCU is also used to: the voltage output of the first power supply unit described in the protocol identification chip controls is triggered, alternatively, control
The voltage output for making second power supply unit, the voltage by the first power supply unit described in the protocol identification chip controls are defeated
Out.
9. charger according to claim 1, which is characterized in that the charger further include:
Power port, the power port are connect with the output end of the power supply；
The input terminal of the rectification filtering unit is connect with the power port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702867.0A CN106253394B (en) | 2016-08-22 | 2016-08-22 | Charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702867.0A CN106253394B (en) | 2016-08-22 | 2016-08-22 | Charger |
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| Publication Number | Publication Date |
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| CN106253394A CN106253394A (en) | 2016-12-21 |
| CN106253394B true CN106253394B (en) | 2019-02-19 |
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|---|---|---|---|
| CN201610702867.0A Active CN106253394B (en) | 2016-08-22 | 2016-08-22 | Charger |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849274A (en) * | 2017-04-05 | 2017-06-13 | 攀枝花学院 | Campatible quick charger |
| CN107508331B (en) * | 2017-07-11 | 2024-10-29 | 道县龙威盛科技有限公司 | Charging unit and charging device |
| CN107968469B (en) * | 2018-01-11 | 2023-11-03 | 厦门美图移动科技有限公司 | Charging system, mobile terminal and charger |
| TWI681286B (en) * | 2018-11-29 | 2020-01-01 | 群光電能科技股份有限公司 | Power supply apparatus |
| CN109831105A (en) * | 2019-04-12 | 2019-05-31 | 山东超越数控电子股份有限公司 | A kind of power supply adaptor implementation method that output voltage is adaptive and a kind of power supply adaptor |
| CN116420292A (en) * | 2021-08-05 | 2023-07-11 | 深圳市华思旭科技有限公司 | Charger (charger) |
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| CN104183895A (en) * | 2014-08-29 | 2014-12-03 | 京信通信系统（中国）有限公司 | Switch-switchable combiner and device |
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| US5477128A (en) * | 1993-07-30 | 1995-12-19 | Technical Associates Co., Ltd. | Automatic charging apparatus |
| CN103715739A (en) * | 2013-12-30 | 2014-04-09 | 上海瑞伯德智能系统科技有限公司 | Energy storage type bi-directional charging point circuit used for distributed bus station |
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| CN106253394A (en) | 2016-12-21 |
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