CN106100023A - Charger, charging identification circuit and method - Google Patents
Charger, charging identification circuit and method Download PDFInfo
- Publication number
- CN106100023A CN106100023A CN201610452135.0A CN201610452135A CN106100023A CN 106100023 A CN106100023 A CN 106100023A CN 201610452135 A CN201610452135 A CN 201610452135A CN 106100023 A CN106100023 A CN 106100023A
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- Prior art keywords
- signal
- charger
- phase place
- identification signal
- charging
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- DWDGSKGGUZPXMQ-UHFFFAOYSA-N OPPO Chemical compound OPPO DWDGSKGGUZPXMQ-UHFFFAOYSA-N 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- H02J7/0077—
Abstract
The invention discloses a kind of charger, charging identification circuit and method.Circuit includes: signal transmitting terminal, for the identification signal that transmitter, phase is variable；Charger, is connected with signal transmitting terminal, for obtaining the phase place identifying signal；Charger is additionally operable to adjust the output voltage controling value corresponding with the phase place identifying signal to be charged battery.By with upper type, the present invention can effectively solve the problem that the inaccurate problem carrying out judging by accident of voltage that USB transmission line impedence causes, and improves mobile terminal charging chip conversion efficiency.
Description
Technical field
The present invention relates to charging technique field, particularly relate to a kind of charger, charging identification circuit and method.
Background technology
Along with the universal of smart mobile phone and user use the raising of demand in cruising time to mobile phone, it is being limited to lithium battery skill
In the case of art cannot make a breakthrough and do big energy density, intelligent mobile phone battery rapid nitriding is able to the most universal.Hurry up
Technology of filling substantially has three kinds, i.e. quick charge (Quick Charge) version of high pass, such as QC2.0, QC3.0, Lian Fake
The VOOC of Pump Express and the Pump Express plus of (MediaTek.Inc, MTK), Ou Po (OPPO) dodges and fills technology；
The these three technology of filling soon is required for the quick charger that coupling is corresponding, by voltage, current signal or mobile phone and charger end
Micro-control unit (Microcontroller Unit, MCU) link up and identify special charger final decision charger
Output voltage.
QC2.0 principle: given by the different voltages of D+ from D-of USB port and close, export accordingly to charger application
Voltage charges for mobile phone.The charger filled soon and mobile phone are by the upper on-load voltage of two lines (DP/DN) in the middle of micro USB interface
Carrying out communication, mobile phone is as communication originating end, and for main equipment, charger is the signal level on equipment, detection DP Yu DN, adjusts
The output voltage of joint charger.
Quick Charge 3.0 uses optimum voltage Intelligent Negotiation algorithm, can determine the merit of needs according to palm terminal
Rate, mates suitable output voltage, and the voltage difference reducing mobile phone charging IC two ends improves efficiency.Quick Charge 3.0
Hold and compare the voltage of refinement and select: be one grade with 200mV increment, it is provided that the voltage from 3.6V to 20V.Shortcoming: refinement gear is relatively
High, it is impossible to maximum efficiency；Identified by voltage signal, be limited to USB transmission line impedence, there is certain erroneous judgement risk.
Pump Express principle: to charger communication and apply for corresponding output voltage by the VBUS of USB port
's.Pump Express is to carry out communication by the current impulse on VBUS, carrys out communication by pulse width time and pulse number, but
Final purpose is an up the voltage of charger to 5V, 7V, 9V, 12V.Waveform recognition is complicated, and voltage gear segmentation degree is inadequate.Nothing
Charging IC efficiency is maximized by method.
The QC agreement of high pass is mainly based upon voltage signal and identifies, the Pump Express of MTK is mainly based upon electric current
Signal identifies, OPPO is then that MCU communication based on mobile phone with charger end identifies special charger.First two is primarily present
Following problem: the loss of 1 USB (universal serial bus) (Universal Serial Bus, USB) transmission line impedance differs, and may cause filling
The voltage that electrical equipment termination receives is inaccurate, causes erroneous judgement；2 cell voltages are relatively low, it is impossible to segment more gear, thus cause charging
Device output voltage segmentation gear less, it is impossible to more efficiently improve mobile terminal charging chip (integratedcircuit,
IC) efficiency.The third MCU is relatively costly.
Summary of the invention
Embodiments provide a kind of charger, charging identification circuit and method, it is possible to effectively solve USB transmission line
The inaccurate problem carrying out judging by accident of voltage that impedance causes, improves mobile terminal charging chip conversion efficiency.
The present invention provides a kind of charging identification circuit, including: signal transmitting terminal, for the identification letter that transmitter, phase is variable
Number；Charger, is connected with signal transmitting terminal, for obtaining the phase place identifying signal；Charger is additionally operable to adjust output and identify
Voltage controling value corresponding to the phase place of signal is to be charged battery.
Wherein, the processor during signal transmitting terminal is charging equipment or charging chip.
Wherein, identify that signal is sine wave signal or cosine wave signal.
Wherein, every 30 degree of the phase place of identification signal is a gear.
Wherein, voltage controling value is 5V～20V.
The present invention also provides for a kind of charging recognition methods, including: receive the identification of the phase variable that charging equipment is launched
Signal；Obtain the phase place identifying signal；Adjust the output voltage controling value corresponding with the phase place identifying signal so that battery to be carried out
Charging.
Wherein, identify that signal is sine wave signal or cosine wave signal.
Wherein, every 30 degree of the phase place of identification signal is a gear.
The present invention also provides for a kind of charger, including: communication unit, for receiving the phase variable that charging equipment is launched
Identification signal；Phase detection unit, is connected with communication unit, for obtaining the phase place identifying signal；Adjust output unit, with
Phase detection unit connects, for adjusting voltage controling value corresponding to the phase place exported and identify signal to fill battery
Electricity.
Wherein, every 30 degree of the phase place of identification signal is a gear.
By such scheme, the invention has the beneficial effects as follows: the present invention passes through the knowledge that signal transmitting terminal transmitter, phase is variable
Level signal；Charger, is connected with signal transmitting terminal, for obtaining the phase place identifying signal；Charger be additionally operable to adjust output with
Identify that the voltage controling value corresponding to phase place of signal is to be charged battery, it is possible to effectively solve USB transmission line impedence and cause
The inaccurate problem carrying out judging by accident of voltage, improve mobile terminal charging chip conversion efficiency.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.Wherein:
Fig. 1 is the structural representation of the charging identification circuit of the embodiment of the present invention；
Fig. 2 is the structural representation of the charger of the embodiment of the present invention；
Fig. 3 is the schematic flow sheet of the charging recognition methods of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiment wholely.Based on this
Embodiment in invention, it is every other that those of ordinary skill in the art are obtained under not making performing creative labour premise
Embodiment, broadly falls into the scope of protection of the invention.
Fig. 1 is the structural representation of the charging identification circuit of first embodiment of the invention.As it is shown in figure 1, charging identifies electricity
Road 10 includes: signal transmitting terminal 11 and charger 12.Signal transmitting terminal 11 is used for the identification signal that transmitter, phase is variable.Charger
12 are connected with signal transmitting terminal 11, for obtaining the phase place identifying signal.Charger 12 is additionally operable to adjust output and identify signal
Voltage controling value corresponding to phase place so that battery 13 is charged.
In embodiments of the present invention, signal transmitting terminal 11 is the processor in charging equipment or charging chip.To be charged
Equipment can be the mobile terminal such as mobile phone, flat board.Signal transmitting terminal 11 can be sent by D+, D-port and identify that signal is to charging
Device 12, it is also possible to sent by VBUS, GND port and identify that signal is to charger 12.Charger 12 receives through usb 14 to be known
Level signal, and according to identifying that signal exports the voltage controling value corresponding with the phase place of this identification signal and fills for battery 13
Electricity.
Identify that the mapping table of phase place and the voltage controling value of signal sees table 1, identify signal be sine wave signal or
Cosine wave signal, identifies that the phase place of signal is 0-180 degree, and every 30 degree is a gear.Accordingly, voltage controling value be 5V～
20V.The most in other embodiments of the invention, it is also possible to being every 20 degree of gears, user can set the most voluntarily
Putting, this is not restricted, and the gear that corresponding voltage controling value divides is more thinner.
Table 1 identifies the phase place of signal and the mapping table of voltage controling value
| D+ | D- | Corresponding voltage value |
| 0° | 0° | 5V |
| 0° | 30° | 7V |
| 0° | 60° | 9V |
| 0° | 90° | 12V |
| 0° | 120° | 15V |
| 0° | 150° | 18V |
| 0° | 180° | 20V |
Voltage controling value after charger 12 will adjust is sent to signal transmitting terminal 11 by VBUS, GND port.Signal is sent out
Penetrating end 11 applies the voltage controling value received to be charged battery 13.
The phase place identifying signal that the signal transmitting terminal 11 that the embodiment of the present invention is received by detection charger 12 sends
Determine whether the fast charger of standard configuration, and finally determine the voltage controling value of output according to the phase place identifying signal.Specifically
Ground, when voltage controling value is bigger, explanation is that battery 13 is charged by the fast charger of standard configuration.So can effectively solve USB
The inaccurate problem carrying out judging by accident of voltage that transmission line impedance may cause, also can more segment the voltage controling value of output
Gear, thus improve the conversion efficiency of mobile terminal charging IC.
Seeing Fig. 2, charger 12 includes: communication unit 121, phase detection unit 122 and adjustment output unit 123.
Communication unit 121 is for receiving the identification signal of the phase variable that charging equipment is launched.Phase detection unit 122 and communication unit
Unit 121 connects, for obtaining the phase place identifying signal.Adjust output unit 123 to be connected with phase detection unit 122, be used for adjusting
Whole output with voltage controling value corresponding to phase place identifying signal so that battery is charged.
In embodiments of the present invention, communication unit 121 can be through usb 14 and by D+, D-port reception signal
The identification signal that transmitting terminal 11 sends, it is also possible to receive signal transmitting terminal 11 through usb 14 and by VBUS, GND port
The identification signal sent.Phase detection unit 122 and then the phase place of this identification signal.Adjust output unit 123 according to identifying letter
Number output voltage controling value corresponding with the phase place of this identification signal, and the voltage controling value after adjusting passes through VBUS, GND end
Mouth is sent to signal transmitting terminal 11.Battery 13 is charged by the voltage controling value that signal transmitting terminal 11 application receives.
In embodiments of the present invention, identify that signal is sine wave signal or cosine wave signal, identify that the phase place of signal is 0-
180 degree, every 30 degree is a gear.Accordingly, voltage controling value is 5V～20V.The most in other embodiments of the invention,
Can also be every 20 degree of gears, user can be arranged the most voluntarily, and this is not restricted, corresponding voltage controling value
The gear divided is more thinner.Adjust output unit 123 and determine whether the fast charger of standard configuration according to the phase place identifying signal, and
The voltage controling value of output is finally determined according to the phase place identifying signal.Specifically, when voltage controling value is bigger, explanation is mark
Join fast charger battery 13 is charged.So can effectively solve the voltage that USB transmission line impedence may cause to be forbidden
The problem really carrying out judging by accident, also can more segment the gear of the voltage controling value of output, thus improve mobile terminal charging IC
Conversion efficiency.
Fig. 3 is the schematic flow sheet of the charging recognition methods of the embodiment of the present invention.As it is shown on figure 3, charging recognition methods bag
Include:
Step S10: receive the identification signal of the phase variable that charging equipment is launched.
In step slo, can be through USB interface the identification letter being received the transmission of signal transmitting terminal by D+, D-port
Number, it is also possible to receive, through USB interface and by VBUS, GND port, the identification signal that signal transmitting terminal sends.Identification signal is
Sine wave signal or cosine wave signal.
Step S11: obtain the phase place identifying signal.
Wherein, the phase place of identification signal is 0-180 degree.
Step S12: adjust the output voltage controling value corresponding with the phase place identifying signal so that battery to be charged.
In step s 12, the voltage controling value corresponding with the phase place of this identification signal according to identifying signal output, and will adjust
Voltage controling value after whole is sent to signal transmitting terminal by VBUS, GND port, so that signal transmitting terminal applies the electricity received
Battery is charged by pressure controlling value.
In embodiments of the present invention, every 30 degree of the phase place of identification signal is a gear.Accordingly, voltage controling value is 5V
～20V.The most in other embodiments of the invention, it is also possible to being every 20 degree of gears, user can the most voluntarily
Arranging, this is not restricted, and the gear that corresponding voltage controling value divides is more thinner.The embodiment of the present invention is according to identifying signal
Phase place determines whether the fast charger of standard configuration, and finally determines the voltage controling value of output according to the phase place identifying signal.
Specifically, when voltage controling value is bigger, explanation is that battery is charged by the fast charger of standard configuration.So can effectively solve
The inaccurate problem carrying out judging by accident of voltage that USB transmission line impedence may cause, also can more segment the Control of Voltage of output
The gear of value, thus improve the conversion efficiency of mobile terminal charging IC.
In sum, by identification signal that signal transmitting terminal transmitter, phase is variable；Charger, with signal transmitting terminal even
Connect, for obtaining the phase place identifying signal；Charger is additionally operable to adjust the Control of Voltage that output is corresponding with the phase place identifying signal
Value is to be charged battery, it is possible to effectively solves the inaccurate problem carrying out judging by accident of voltage that USB transmission line impedence causes, carries
High mobile terminal charging chip conversion efficiency.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description and accompanying drawing content are made convert, or are directly or indirectly used in other relevant skills
Art field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. a charging identification circuit, it is characterised in that described circuit includes:
Signal transmitting terminal, for the identification signal that transmitter, phase is variable；
Charger, is connected with described signal transmitting terminal, for obtaining the phase place of described identification signal；
Described charger is additionally operable to adjust the output voltage controling value corresponding with the phase place of described identification signal to carry out battery
Charging.
Circuit the most according to claim 1, it is characterised in that described signal transmitting terminal is the processor in charging equipment
Or charging chip.
Circuit the most according to claim 1, it is characterised in that described identification signal is sine wave signal or cosine wave letter
Number.
Circuit the most according to claim 1, it is characterised in that every 30 degree of the phase place of described identification signal is a gear.
Circuit the most according to claim 1, it is characterised in that described voltage controling value is 5V～20V.
6. a charging recognition methods, it is characterised in that described method includes:
Receive the identification signal of the phase variable that charging equipment is launched；
Obtain the phase place of described identification signal；
Adjust the output voltage controling value corresponding with the phase place of described identification signal so that battery to be charged.
Method the most according to claim 6, it is characterised in that described identification signal is sine wave signal or cosine wave letter
Number.
Method the most according to claim 6, it is characterised in that every 30 degree of the phase place of described identification signal is a gear.
9. a charger, it is characterised in that described charger includes:
Communication unit, for receiving the identification signal of the phase variable that charging equipment is launched；
Phase detection unit, is connected with described communication unit, for obtaining the phase place of described identification signal；
Adjust output unit, be connected with described phase detection unit, corresponding with the phase place of described identification signal for adjusting output
Voltage controling value so that battery is charged.
Charger the most according to claim 9, it is characterised in that every 30 degree of the phase place of described identification signal is shelves
Position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452135.0A CN106100023A (en) | 2016-06-21 | 2016-06-21 | Charger, charging identification circuit and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452135.0A CN106100023A (en) | 2016-06-21 | 2016-06-21 | Charger, charging identification circuit and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106100023A true CN106100023A (en) | 2016-11-09 |
Family
ID=57237724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610452135.0A Pending CN106100023A (en) | 2016-06-21 | 2016-06-21 | Charger, charging identification circuit and method |
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| Country | Link |
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Cited By (5)
| 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 |
| CN107508330A (en) * | 2017-07-05 | 2017-12-22 | 深圳天珑无线科技有限公司 | A kind of electronic installation and its charging method |
| CN111309662A (en) * | 2020-03-13 | 2020-06-19 | 深圳传音控股股份有限公司 | Charging protocol communication method, device, equipment and computer readable storage medium |
| CN111478411A (en) * | 2020-06-01 | 2020-07-31 | 上海闻泰电子科技有限公司 | Charging voltage prompting method and electronic equipment |
| CN113078697A (en) * | 2020-01-03 | 2021-07-06 | 北京小米移动软件有限公司 | Charging control method and device and adapter |
-
2016
- 2016-06-21 CN CN201610452135.0A patent/CN106100023A/en active Pending
Cited By (6)
| 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 |
| CN107508330A (en) * | 2017-07-05 | 2017-12-22 | 深圳天珑无线科技有限公司 | A kind of electronic installation and its charging method |
| CN113078697A (en) * | 2020-01-03 | 2021-07-06 | 北京小米移动软件有限公司 | Charging control method and device and adapter |
| CN111309662A (en) * | 2020-03-13 | 2020-06-19 | 深圳传音控股股份有限公司 | Charging protocol communication method, device, equipment and computer readable storage medium |
| CN111478411A (en) * | 2020-06-01 | 2020-07-31 | 上海闻泰电子科技有限公司 | Charging voltage prompting method and electronic equipment |
| CN111478411B (en) * | 2020-06-01 | 2021-11-12 | 上海闻泰电子科技有限公司 | Charging voltage prompting method and electronic equipment |
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Effective date of abandoning: 20190326 |
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