CN205540709U - Special quick charge port adaptation chip of USB - Google Patents
Special quick charge port adaptation chip of USB Download PDFInfo
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- CN205540709U CN205540709U CN201620077758.XU CN201620077758U CN205540709U CN 205540709 U CN205540709 U CN 205540709U CN 201620077758 U CN201620077758 U CN 201620077758U CN 205540709 U CN205540709 U CN 205540709U
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Abstract
The utility model provides a special quick charge port adaptation chip of USB, chip D+ and D - pin counterpoint and connect the D+ and the D - data terminal of USB port, include: first adaptation module, second adaptation module, voltage regulation switch block module, D+ / end switch block module and start -up buffer module, the different port that charges of first adaptation module cooperation second adaptation module automatic identification to the adaptation goes out corresponding charged state. For the utility model discloses the special quick charge port adaptation chip of USB of well proposition has integrated USB the charge discernment and the adaption function of port, supports the charge automatic identification and the adaptation of specification to multiple USB such as QC2.0, BC1.2 and apple DCP simultaneously, can further improve the commonality and the compatibility of charger.
Description
Technical field
The utility model relates to USB set and becomes circuit, particularly to the adaptation of a kind of USB special quick charge port
Chip.
Background technology
In the charger of portable electric appts, USB is as charger downlink port (Downstream Port)
It is most widely used.For all kinds of different USB downstream ports, such as standard down port (Standard
DownstreamPort, SDP), charging downlink port (Charging Downstream Port, CDP), specially
With charging port (Dedicated Charging Port, DCP) etc., it should make a distinction process, for filling
Electrical power should be controlled.To this end, industry has been developed in two big main flow USB charging specification: USB-IF at present
Battery charging (Battery Charging) specification, latest edition is V1.2 (hereinafter referred to as BC1.2), and
The special charging port specification (hereinafter referred to as Apple DCP) of Apple.USB charging gage needle is to inhomogeneity
The charge power of type USB downstream port is controlled, the charge power that wherein permission DCP carrying is bigger, such as,
For 5V standard charge voltage, Apple DCP defines tri-kinds of DCP current specification of 1A, 2.1A and 2.4A,
And the 500mA specification of compatibility USB2.0SDP.Owing to the DCP of BC1.2 and Apple DCP definition does not holds concurrently
Holding, in order to improve the versatility of charger, industry is proposed USB special charging port adaptation chip, represents
The TPS2514 of property product such as Texas Instrument (TI).Use adaptive chip, it is possible to compatible BC1.2DCP or
It is that the different power receiving equipments of Apple DCP identify and adaptive automatically, improves the versatility of charger and hold concurrently
Capacitive.
Along with portable electric appts battery capacity is continuously increased, market proposes higher for charging rate
Requirement, although USB charging specification allows the charging current that DCP carrying is bigger, but due to cable impedance, hot merit
The restriction of the factors such as consumption, the simple method increasing charging current cannot meet demand.In order to improve further
Charging rate, " quick charge " agreement is arisen at the historic moment, and wherein represents such as the fast charge protocol 2.0 of Qualcomm
Version (Quick Charge 2.0, QC2.0), its method is to improve charging voltage, and QC2.0 defines simultaneously and props up
Hold special quick charge port (hereinafter referred to as HVDCP) specification of high voltage output.The most existing some moneys prop up
Hold the USB special quick charge port adaptation chip of QC2.0, mainstream product such as Power Integrations
(PI) CHY100D of company, the switch power converter of appropriate mix, the quick charger being achieved in,
High-voltage high-speed charging and the output of standard 5V can be identified and adaptive automatically.But these adaptive chips are equal
Only support QC2.0, and the backward compatible BC1.2 of QC2.0 itself, but can not compatible Apple DCP, therefore use
The quick charger of these adaptive chips, when charging to the portable product of Apple, can be taken as
USB2.0SDP process, charging current maximum only has 500mA, it is impossible to meets demand, which also limits charging
The versatility of device.
How to integrate all kinds of USB charging port adapter, improve versatility and the compatibility of charger further,
Become problem demanding prompt solution.
Utility model content
Main purpose of the present utility model is for providing a kind of USB special quick charge port adaptation chip, it is possible to
Support automatically identifying and adaptive of different power receiving equipment charging port simultaneously, improve the versatility of charger and hold concurrently
Capacitive.
The utility model proposes a kind of USB special quick charge port adaptation chip, chip D+ and D-draws
Pin contraposition connects D+ and the D-data terminal of USB port, including: the first adaptation module, the second adaptive mould
Block, voltage control switch group module, D+/-end switch group module and startup buffer module；
Described first adaptation module is connected with described D+/-end switch group module and the second adaptation module；Described
First adaptation module obtains, by D+ and D-pin, the carrying out shake communication that power receiving equipment sends, according to result control of shaking hands
Coremaking sheet switching charged state, generates corresponding control signal according to different charged states and exports D+/-end switch
Group module, generates enable signal simultaneously and exports the second adaptation module；
Described second adaptation module is opened with described first adaptation module, D+/-end switch group module and Voltage Cortrol
Pass group module connects；Described second adaptation module receives the enable signal of described first adaptation module output,
Under enabled state, obtain, by D+ and D-pin, the quick charge carrying out shake communication that power receiving equipment sends, according to holding
Hand result generates corresponding voltage adjustment signal and exports voltage control switch group module；
Described voltage control switch group module receives the voltage adjustment signal of described second adaptation module output, and
Adjust output voltage；
Described startup buffer module receives the voltage of outside input and produces interior voltage-stabilized power supply, for chip power supply；
Control chip powers on and starts and export buffer voltagc to described D+/-end switch group module；
Described D+/-end switch group module input receives the control letter of described first adaptation module output respectively
Number, second adaptation module output control signal and described startup buffer module output voltage；According to not
Same control signal, controls to simulate different charged states on D+ and D-pin.
Further, the connection status of described second adaptation module detection power receiving equipment, and generate corresponding signal
It is transmitted back to described first adaptation module.
Further, described startup buffer module includes start-up circuit and internal voltage regulator module；
Described start-up circuit and internal voltage regulator module include internal voltage regulator and start-up circuit；
Described internal voltage regulator receives the voltage of outside input and produces interior voltage-stabilized power supply, for each module of chip
Power supply；
Described start-up circuit control chip powers on and starts.
Further, described startup buffer module also includes benchmark and reference voltage module；
Described benchmark and reference voltage module produce reference voltage and reference voltage letter from described interior voltage-stabilized power supply
Number, output to each module of chip.
Further, described startup buffer module also includes D+/-end output buffer module；
Described D+/-end output buffer module input receives the voltage produced by benchmark and reference voltage module, warp
After buffering, output is to described D+/-end switch group module.
Further, described voltage control switch group module includes three controlled switch, described controlled switch one
End common ground, the other end connects different pins respectively；Described voltage control switch group module receives described
Second adaptation module output control signal, controls being switched on and off of three controlled switch.
Further, described first adaptation module is Apple DCP&BC1.2 adaptation module；Described second fits
Joining module is QC2.0 adaptation module.
This practicality realizes the USB special quick charge port adaptation chip provided, and has the advantages that
The USB special quick charge port adaptation chip that the utility model provides, incorporates USB charging port
Adaption function, supports QC2.0 quick charge, BC1.2 special charging and Apple special charging etc. simultaneously
Automatically identifying and adaptive of multiple USB charging specification, it is possible to improve versatility and the compatibility of charger further
Property.
Accompanying drawing explanation
Fig. 1 is USB special quick charge port adaptation chip structure signal in the utility model one embodiment
Figure；
Fig. 2 is USB special quick charge port adaptation chip structure signal in another embodiment of the utility model
Figure；
Fig. 3 is that in the utility model one embodiment, USB special quick charge port adaptation chip running status turns
Change schematic diagram.
The realization of the utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings into one
Step explanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the utility model, is not used to
Limit the utility model.
With reference to Fig. 1, the middle USB special quick charge port adaptation chip for the utility model one embodiment is tied
Structure schematic diagram.
The middle USB special quick charge port adaptation chip of the utility model one embodiment includes: first is adaptive
Module the 11, second adaptation module 12, voltage control switch group module 103, D+/-end switch group module 105
And start buffer module 10.Chip D+ and D-pin 108 contraposition connect D+ and D-of USB port
Data terminal.
Above-mentioned startup buffer module 10 includes D+/-end output buffer module 104, start-up circuit and internal voltage stabilizing
Device module 106 and benchmark and reference voltage module 107.
Above-mentioned first adaptation module 11 and above-mentioned D+/-end switch group module 105 and the second adaptation module 12
Connect；Above-mentioned first adaptation module 11 is logical by D+ and D-pin 108 shaking hands of obtaining that power receiving equipment sends
News, according to output control chip switching charged state of shaking hands, generate according to different charged states and control letter accordingly
Number output to D+/-end switch group module 105, generates simultaneously and enables signal and export the second adaptation module 12.
Above-mentioned second adaptation module 12 and above-mentioned first adaptation module 11, D+/-end switch group module 105 and
Voltage control switch group module 103 connects；Above-mentioned second adaptation module 12 receives above-mentioned first adaptation module 11
The enable signal of output, under enabled state, by D+ and D-pin 108 obtain that power receiving equipment sends fast
Speed charging carrying out shake communication, generates corresponding voltage adjustment signal according to result of shaking hands and exports voltage control switch
Group module 103.
Above-mentioned voltage control switch group module 103 receives the Voltage Cortrol letter of above-mentioned second adaptation module 12 output
Number, and adjust output voltage；
Above-mentioned startup buffer module 10 receives the voltage of outside input and produces interior voltage-stabilized power supply, supplies for chip
Electricity；Control chip powers on and starts and export buffer voltagc to above-mentioned D+/-end switch group module；
Above-mentioned D+/-end switch group module 105 input receives the control of above-mentioned first adaptation module 11 output respectively
Signal processed, the control signal of the second adaptation module 12 output and the electricity of above-mentioned startup buffer module 10 output
Pressure；According to different control signals, control to simulate different states on D+ and D-pin 108.
In the present embodiment, above-mentioned startup buffer module 10 includes D+/-end output buffer module 104, starts
Circuit and internal voltage regulator module 106 and benchmark and reference voltage module 107.
Wherein, above-mentioned start-up circuit and internal voltage regulator module 106, connect chip VDD pin, it includes
Internal voltage regulator and start-up circuit two parts.Internal voltage regulator receives the voltage of outside input and produces internal steady
Voltage source, for each module for power supply of chip；Above-mentioned start-up circuit control chip powers on and starts.
Said reference and reference voltage module 107, produce reference voltage and each reference voltage from interior voltage-stabilized power supply
Signal, output to each module of system.
Above-mentioned D+/-end output buffer module 104, its input receives by benchmark and reference voltage module 107
Producing the 2V/2.7V voltage required by Apple DCP, buffered rear output is to D+/-end switch group module 105.
Adaptive chip in the present embodiment incorporates the adaption function of USB charging port, and to support right simultaneously
The multiple USB charging specifications such as QC2.0 quick charge, BC1.2 special charging and Apple special charging
Automatically identify and adaptive, it is possible to improve versatility and the compatibility of charger further.
With reference to Fig. 2, tie for USB special quick charge port adaptation chip in another embodiment of the utility model
Structure schematic diagram.
In the present embodiment, above-mentioned first adaptation module 11 is Apple DCP&BC1.2 adaptation module 101,
Above-mentioned second adaptation module 12 is QC2.0 adaptation module 102.
Above-mentioned Apple DCP&BC1.2 adaptation module 101, obtains power receiving equipment from D+ and D-pin 108
The carrying out shake communication sent, according to output control chip of shaking hands in Apple DCP pattern and BC1.2 pattern two kinds
Switch between state, generate corresponding control signal according to different conditions and export D+/-end switch group module 105, with
Shi Shengcheng enables signal and exports QC2.0 adaptation module 102.
Above-mentioned QC2.0 adaptation module 102, obtains from Apple DCP&BC1.2 adaptation module 101 and enables letter
Number, under enabled state, obtain, from D+ and D-pin 108, the quick charge carrying out shake communication that power receiving equipment sends,
Corresponding voltage adjustment signal, output to voltage control switch group module 103 is generated according to result of shaking hands；Additionally,
Above-mentioned QC2.0 adaptation module 102 detects the connection status of power receiving equipment, and generates corresponding signal and be transmitted back to
Apple DCP&BC1.2 adaptation module 101.
Above-mentioned voltage control switch group module 103 comprises three controlled switch, switchs one end altogether, the other end
Connect V1, V2 and V3 pin respectively；Above-mentioned voltage control switch group module 103 receives from QC2.0
The control signal of adaptation module 102, controls being switched on and off of three controlled switch, it is achieved adjust USB defeated
Go out the purpose of voltage.
Above-mentioned D+/-end output buffer module 104, its input receives by benchmark and reference voltage module 107
Producing the 2V/2.7V voltage required by Apple DCP, buffered rear output is to D+/-end switch group module 105.
Above-mentioned D+/-end switch group module 105, its input receives Apple DCP&BC1.2 adaptation mould respectively
The control signal of block 101 output, the control signal of QC2.0 adaptation module 102 output, D+/-end output buffering
The 2V/2.7V voltage of module 104 output, according to different control signals, control each controlled switch conducting and
Cut off, thus on D+ and D-pin 108, simulate " Apple DCP ", " BC1.2 " and " QC2.0 "
Three kinds of different states.
Above-mentioned start-up circuit and internal voltage regulator module 106, connect chip VDD pin, and it includes internal steady
Depressor and start-up circuit two parts.Above-mentioned internal voltage regulator receives the voltage of outside input and produces internal voltage stabilizing
Power supply, for each module for power supply of chip；Above-mentioned start-up circuit control chip powers on and starts.
Said reference and reference voltage module 107, produce reference voltage and each reference voltage from interior voltage-stabilized power supply
Signal, output to each module of chip.
Adaptive chip in the present embodiment incorporates the adaption function of USB charging port, and to support right simultaneously
QC2.0 quick charge, BC1.2 special charging and Apple special charging three big USB charging specification from
Dynamic identification and adaptation, it is possible to improve versatility and the compatibility of charger further.
Fig. 3 is the adaptive chip running state conversion schematic diagram of the utility model one embodiment, comprising:
Three states of chip charging: Apple DCP Mode S 202, BC1.2 Mode S 205, QC2.0 mould
Formula S207, wherein Apple DCP Mode S 202 is system default state.
Chip run case includes: power on S201, equipment of chip accesses S203, equipment and removes S208；
Carrying out shake communication includes: BC1.2 carrying out shake communication S204, QC2.0 carrying out shake communication S206.
When chip is energized, chip power on S201 event trigger, start-up circuit and internal voltage regulator module 106
Work, producing interior voltage-stabilized power supply is each module for power supply of chip, and start-up circuit order produces enabling signal simultaneously,
Chip initiation.
After chip initiation completes, Apple DCP&BC1.2 adaptation module 101 is started working, and system is automatic
Enter and stay in Apple DCP Mode S 202, produce corresponding control signal and export D+/-end switch group mould
Block 105, controls D+ and D-pin 108 output and meets the 2V/2.7V combinations of voltages that Apple DCP requires；
Apple DCP&BC1.2 adaptation module 101 produces " QC2.0 detects hang-up " signal and exports QC2.0 simultaneously
Adaptation module 102, makes QC2.0 adaptation module 102 be closed.
After equipment accesses the triggering of S203 event, Apple DCP&BC1.2 adaptation module 101 persistently detects
D+ and D-pin 108, if receiving BC1.2 carrying out shake communication S204, then makes chip be switched to BC1.2 pattern
S205, produces corresponding control signal and exports D+/-end switch group module 105, control D+ and D-pin 108
Between change short circuit into, and stop the voltage output on pin；Apple DCP&BC1.2 adaptation module 101 simultaneously
Produce " QC2.0 detects unlatching " signal and export QC2.0 adaptation module 102, make QC2.0 adaptation module
102 enter wait state, persistently detection D+ and D-pin 108.
If QC2.0 adaptation module 102 is not detected by QC2.0 carrying out shake communication S206 event, chip rests on
The state of BC1.2 Mode S 205；Until QC2.0 adaptation module 102 detects QC2.0 carrying out shake communication S206
Event, then make system be switched to QC2.0 Mode S 207, produces corresponding control signal and exports D+/-end switch
Group module 105, controls D+ and D-pin 108 separated；Produce corresponding control according to carrying out shake communication result simultaneously
Signal processed exports voltage control switch group module 103, completes output voltage and adjusts.
When equipment is removed, QC2.0 adaptation module 102 detects that equipment removes S208 event and triggers, and produces
Raw control signal exports D+/-end switch group module 105, makes three switches all off, and output voltage adjusts
Export to standard 5V；Produce " closedown of QC2.0 pattern " signal simultaneously and export Apple DCP&BC1.2
Adaptation module 101.
When Apple DCP&BC1.2 adaptation module 101 receives from QC2.0 adaptation module 102
" closedown of QC2.0 pattern " signal, then make chip return to default Apple DCP state, produce simultaneously
" QC2.0 detects hang-up " signal exports QC2.0 adaptation module 102, makes the latter enter closed mode.
In sum, in the utility model embodiment propose USB special quick charge port adaptation chip,
Its identification incorporating USB charging port and adaption function, support QC2.0, BC1.2 and Apple simultaneously
Automatically identifying and adaptive of tri-kinds of USB of DCP charging specifications, it is possible to improve further charger versatility and
Compatible.
The foregoing is only preferred embodiment of the present utility model, not thereby limit patent of the present utility model
Scope, every equivalent structure utilizing the utility model specification and accompanying drawing content to be made or equivalence flow process conversion,
Or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in patent of the present utility model and protects
In the range of protecting.
Claims (7)
1. a USB special quick charge port adaptation chip, chip D+ and D-pin contraposition connect USB
D+ and the D-data terminal of port, it is characterised in that including: the first adaptation module, the second adaptation module,
Voltage control switch group module, D+/-end switch group module and startup buffer module；
Described first adaptation module is connected with described D+/-end switch group module and the second adaptation module；Described
First adaptation module obtains, by D+ and D-pin, the carrying out shake communication that power receiving equipment sends, according to result control of shaking hands
Coremaking sheet switching charged state, generates corresponding control signal according to different charged states and exports D+/-end switch
Group module, generates enable signal simultaneously and exports the second adaptation module；
Described second adaptation module is opened with described first adaptation module, D+/-end switch group module and Voltage Cortrol
Pass group module connects；Described second adaptation module receives the enable signal of described first adaptation module output,
Under enabled state, obtain, by D+ and D-pin, the quick charge carrying out shake communication that power receiving equipment sends, according to holding
Hand result generates corresponding voltage adjustment signal and exports voltage control switch group module；
Described voltage control switch group module receives the voltage adjustment signal of described second adaptation module output, and
Adjust output voltage；
Described startup buffer module receives the voltage of outside input and produces interior voltage-stabilized power supply, for chip power supply；
Control chip powers on and starts and export buffer voltagc to described D+/-end switch group module；
Described D+/-end switch group module input receives the control letter of described first adaptation module output respectively
Number, second adaptation module output control signal and described startup buffer module output voltage；According to not
Same control signal, controls to simulate different charged states on D+ and D-pin.
2. USB special quick charge port adaptation chip as claimed in claim 1, it is characterised in that
The connection status of described second adaptation module detection power receiving equipment, and generate corresponding signal and be transmitted back to described first
Adaptation module.
3. USB special quick charge port adaptation chip as claimed in claim 1, it is characterised in that
Described startup buffer module includes start-up circuit and internal voltage regulator module；
Described start-up circuit and internal voltage regulator module include internal voltage regulator and start-up circuit；
Described internal voltage regulator receives the voltage of outside input and produces interior voltage-stabilized power supply, for each module of chip
Power supply；
Described start-up circuit control chip powers on and starts.
4. USB special quick charge port adaptation chip as claimed in claim 3, it is characterised in that institute
State startup buffer module and also include benchmark and reference voltage module；
Described benchmark and reference voltage module produce reference voltage and reference voltage letter from described interior voltage-stabilized power supply
Number, output to each module of chip.
5. USB special quick charge port adaptation chip as claimed in claim 4, it is characterised in that institute
State startup buffer module and also include D+/-end output buffer module；
Described D+/-end output buffer module input receives the voltage produced by benchmark and reference voltage module, warp
After buffering, output is to described D+/-end switch group module.
6. USB special quick charge port adaptation chip as claimed in claim 1, it is characterised in that institute
State voltage control switch group module and include three controlled switch, described controlled switch one end common ground, another
End connects different pins respectively；Described voltage control switch group module receives described second adaptation module output
Control signal, controls being switched on and off of three controlled switch.
7. USB special quick charge port adaptation chip as claimed in claim 1, it is characterised in that institute
Stating the first adaptation module is Apple DCP & BC1.2 adaptation module；Described second adaptation module is that QC2.0 fits
Join module.
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| CN201620077758.XU CN205540709U (en) | 2016-01-27 | 2016-01-27 | Special quick charge port adaptation chip of USB |
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| CN201620077758.XU CN205540709U (en) | 2016-01-27 | 2016-01-27 | Special quick charge port adaptation chip of USB |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329655A (en) * | 2016-09-26 | 2017-01-11 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106356936A (en) * | 2016-09-26 | 2017-01-25 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106356933A (en) * | 2016-09-26 | 2017-01-25 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106374563A (en) * | 2016-09-26 | 2017-02-01 | 宇龙计算机通信科技(深圳)有限公司 | Electronic apparatus and charging method therefor |
| CN106374564A (en) * | 2016-09-26 | 2017-02-01 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106410894A (en) * | 2016-09-26 | 2017-02-15 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106451617A (en) * | 2016-09-26 | 2017-02-22 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106451615A (en) * | 2016-09-26 | 2017-02-22 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
-
2016
- 2016-01-27 CN CN201620077758.XU patent/CN205540709U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329655A (en) * | 2016-09-26 | 2017-01-11 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106356936A (en) * | 2016-09-26 | 2017-01-25 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106356933A (en) * | 2016-09-26 | 2017-01-25 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106374563A (en) * | 2016-09-26 | 2017-02-01 | 宇龙计算机通信科技(深圳)有限公司 | Electronic apparatus and charging method therefor |
| CN106374564A (en) * | 2016-09-26 | 2017-02-01 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106410894A (en) * | 2016-09-26 | 2017-02-15 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106451617A (en) * | 2016-09-26 | 2017-02-22 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
| CN106451615A (en) * | 2016-09-26 | 2017-02-22 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device and charging method thereof |
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