CN105471047B - A kind of QC2.0 protocol circuit for mobile power source electric discharge - Google Patents
A kind of QC2.0 protocol circuit for mobile power source electric discharge Download PDFInfo
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- CN105471047B CN105471047B CN201610013747.XA CN201610013747A CN105471047B CN 105471047 B CN105471047 B CN 105471047B CN 201610013747 A CN201610013747 A CN 201610013747A CN 105471047 B CN105471047 B CN 105471047B
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- resistance
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- power source
- mouth
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- 239000003990 capacitor Substances 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 244000062793 Sorghum vulgare Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- H02J7/007—Regulation of charging or discharging current or voltage
-
- H02J2007/0067—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Power Sources (AREA)
Abstract
The invention discloses a kind of QC2.0 protocol circuits for mobile power source electric discharge, including USB port P2, resistance R12, resistance R13, resistance R17, resistance R18 and capacitor C7, the foot 1 of the USB port P2 connects booster circuit and charging voltage input port V2_OUT, the foot 2 of USB port P2 connects resistance R12 and resistance R13, the foot 3 of the other end connection USB port P2 of AD the mouth D+, resistance R13 of the other end connection MCU of resistance R12 and the AD mouth D- of MCU.The present invention cleverly utilizes single-chip microcontroller and simple peripheral circuit to realize the protocol handshake of QC2.0, thus realize should not agreement IC also may be implemented to carry out the charging of QC2.0 agreement to smart machine, circuit structure is simple.It is flexible in application, even if the standard upgrade of QC2.0, and can be applicable in, to promote the cost performance of existing product.
Description
Technical field
The present invention relates to a kind of protocol circuit, specifically a kind of QC2.0 protocol circuit for mobile power source electric discharge.
Background technique
Along with the arriving of big data era, mobile phone is no longer simply to make a phone call already, sends out news in brief.Various intelligent answers
With the life and work for greatly facilitating modern, people are higher and higher using the frequency of mobile phone, need to the capacity of battery of mobile phone
Ask also higher and higher, the natural requirement for charging rate is also higher and higher.For in this way, each manufacturer starts to release various intelligence
Energy fast charge agreement has the mobile phones such as Samsung, millet to support QC2.0 fast at present wherein the QC2.0 fast charge with high pass is most widely used
It fills.Each chip manufacturer starts to be proposed new agreement IC for QC2.0 agreement, may be implemented and support QC2.0 with this IC
The equipment of charging completes handshake procedure, to open the high-voltage charge mode of charging equipment.Agreement IC has been applied at present
Various onboard chargers, mobile power source, on power supply adaptor.Present invention mainly solves the problem of be exactly cleverly using monolithic
Machine and simple peripheral circuit realize the protocol handshake of QC2.0, thus realize should not agreement IC also may be implemented to smart machine
The charging of QC2.0 agreement is carried out, to promote the cost performance of existing product.
Summary of the invention
A kind of the purpose of the present invention is to provide structures simple, the stable multi-chip package test side based on MCU of performance
Method, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of QC2.0 protocol circuit for mobile power source electric discharge, including USB port P2, resistance R12, resistance R13, resistance
The foot 1 of R17, resistance R18 and capacitor C7, the USB port P2 connect booster circuit and charging voltage input port V2_OUT, USB port
The foot 2 of P2 connects resistance R12 and resistance R13, and the other end of AD the mouth D+, resistance R13 of the other end connection MCU of resistance R12 connect
The foot 4 for connecing the foot 3 of USB port P2 and AD the mouth D-, USB port P2 of MCU connects resistance R17 and resistance R18, the other end of resistance R17
Connect capacitor C7 and voltage V-1OUT1, the other end ground connection of capacitor C7.
As a preferred solution of the present invention: the USB interface P2 is also connected with QC2.0 management equipment M.
Compared with prior art, the beneficial effects of the present invention are: the present invention cleverly utilizes single-chip microcontroller and simple periphery
Circuit realize QC2.0 protocol handshake, thus realize should not agreement IC also may be implemented to smart machine carry out QC2.0 agreement fill
Electricity, circuit structure are simple.It is flexible in application, even if the standard upgrade of QC2.0, and can be applicable in, to promote existing product
Cost performance.
Detailed description of the invention
Fig. 1 is circuit diagram of the invention.
Specific embodiment
Below in conjunction with the attached drawing in this practical example, the technical solution in this practical example is carried 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.
Referring to Fig. 1, in this practical example, a kind of QC2.0 protocol circuit for mobile power source electric discharge, including USB
Mouthful P2, resistance R12, resistance R13, resistance R17, resistance R18 and capacitor C7, the USB port P2 foot 1 connect booster circuit and fill
The foot 2 of piezoelectric voltage input port V2_OUT, USB port P2 connect resistance R12 and resistance R13, the other end connection MCU's of resistance R12
AD mouthfuls of D+, resistance R13 the other end connection USB port P2 foot 3 and MCU AD mouth D-, USB port P2 foot 4 connect resistance R17 with
The other end of resistance R18, resistance R17 connect capacitor C7 and voltage V-1OUT1, the other end ground connection of capacitor C7.
USB interface P2 is also connected with QC2.0 management equipment M.
The working principle of the invention is: since current 95% or more mobile power source is useful for AD type MCU, so we can
With by AD type MCU, in conjunction with the above circuit, so that it may realize QC2.0 protocol handshake when mobile power source being allowed to discharge to equipment.To
Realize high-power charging.
P2 is USB discharge port in figure, for taking over the equipment that machine etc. supports QC2.0.
V2_OUT is charging voltage input port, while being external to booster circuit modular circuit, due to boost module and Ben Fa
It is bright unrelated, it does not illustrate herein.
R18 is discharge current thief hatch, and R17, C7 are simple RC filtering, this partial circuit is general known technology,
It does not illustrate herein.
D+, D- are the AD mouth for being connected to MCU, and R12, R13 combination cooperation D-, D+ realize protocol handshake, and specific workflow is such as
Under:
Once 1, equipment M(is stated for convenience, equipment is indicated with M) it is linked into P2, D+, D- are set as AD input at this time
Mouthful, 2 feet and 3 feet of P2 are equivalent to and are shorted together by R13.
2, equipment M can generate the voltage of a 0.325V on 2 feet automatically, sound out 2 feet and whether 3 feet are connected, this process
General 1.25s or so is maintained, if 3 feet receive identical voltage, then it is assumed that 2 feet and 3 feet are conductings.
3, D+, D- acquire the voltage of 2 feet and 3 feet, if detecting 0.325 voltage, and maintain 1.25S, at this time will
D- is set as output pin, output 0.
4, equipment M can detect the voltage decline of D- at this time, and M then will be considered that charging equipment is the equipment for supporting QC charging,
Can a voltage actively be exported in 2 feet and 3 feet.
5, D-, D+ are set as AD mouthfuls after 500ms, start the voltage for detecting 2 feet and 3 feet, according to the voltage detected,
It is boosted using booster circuit, is discharged to M equipment.
Claims (1)
1. a kind of QC2.0 protocol circuit for mobile power source electric discharge, including USB port P2, resistance R12, resistance R13, resistance
The foot 1 of R17, resistance R18 and capacitor C7, the USB port P2 connect booster circuit and charging voltage input port V2_OUT, feature
It is, the foot 2 of USB port P2 connects resistance R12 and resistance R13, AD the mouth D+, resistance R13 of the other end connection MCU of resistance R12
The other end connection USB port P2 foot 3 and MCU AD mouth D-, USB port P2 foot 4 connection resistance R17 and resistance R18, resistance
The other end of R18 is grounded, and the other end of resistance R17 connects capacitor C7 and voltage V-1OUT1, the other end ground connection of capacitor C7, USB
Mouth P2 is also connected with QC2.0 management equipment M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013747.XA CN105471047B (en) | 2016-01-08 | 2016-01-08 | A kind of QC2.0 protocol circuit for mobile power source electric discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013747.XA CN105471047B (en) | 2016-01-08 | 2016-01-08 | A kind of QC2.0 protocol circuit for mobile power source electric discharge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105471047A CN105471047A (en) | 2016-04-06 |
| CN105471047B true CN105471047B (en) | 2019-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610013747.XA Active CN105471047B (en) | 2016-01-08 | 2016-01-08 | A kind of QC2.0 protocol circuit for mobile power source electric discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105471047B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684986A (en) * | 2016-12-26 | 2017-05-17 | 建荣半导体（深圳）有限公司 | Charging equipment and fast-charging protocol analytic method and system thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8860378B2 (en) * | 2011-11-23 | 2014-10-14 | Standard Microsystems Corporation | Method and system for attachment and removal indication for battery charging devices |
| CN204633409U (en) * | 2015-05-28 | 2015-09-09 | 广州飞毛腿数码技术有限公司 | A kind ofly support the portable power source that high pass QC2.0 fills function soon |
| CN104917267A (en) * | 2015-06-05 | 2015-09-16 | 凤冠电机（深圳）有限公司 | Two-in-one charging circuit compatible with MTK and QC2.0 charging schemes |
| CN205489592U (en) * | 2016-01-08 | 2016-08-17 | 深圳市博巨兴实业发展有限公司 | Be used for exoelectric QC2. 0 of portable power source agreement circuit |
-
2016
- 2016-01-08 CN CN201610013747.XA patent/CN105471047B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8860378B2 (en) * | 2011-11-23 | 2014-10-14 | Standard Microsystems Corporation | Method and system for attachment and removal indication for battery charging devices |
| CN204633409U (en) * | 2015-05-28 | 2015-09-09 | 广州飞毛腿数码技术有限公司 | A kind ofly support the portable power source that high pass QC2.0 fills function soon |
| CN104917267A (en) * | 2015-06-05 | 2015-09-16 | 凤冠电机（深圳）有限公司 | Two-in-one charging circuit compatible with MTK and QC2.0 charging schemes |
| CN205489592U (en) * | 2016-01-08 | 2016-08-17 | 深圳市博巨兴实业发展有限公司 | Be used for exoelectric QC2. 0 of portable power source agreement circuit |
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| Publication number | Publication date |
|---|---|
| CN105471047A (en) | 2016-04-06 |
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Address after: 518057 Shenzhen Nanshan District, Guangdong Province, Guangdong Province, Yuehai Street High-tech District Community Science and Technology South Road 18 Shenzhen Bay Science and Technology Eco-Park 12 Skirt Building 732 Applicant after: Shenzhen Bojuxing Microelectronics Technology Co., Ltd. Address before: 518000 Shenzhen, Nanshan District Province, a new high tech park, a new material in the long D port (), building four, building, floor, floor, building materials () Applicant before: Shenzhen Bojuxing Industrial Development Co., Ltd. |
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