CN104600774A - Charging recognition circuit, charging recognition method, data line and mobile terminal - Google Patents
Charging recognition circuit, charging recognition method, data line and mobile terminal Download PDFInfo
- Publication number
- CN104600774A CN104600774A CN201410737054.6A CN201410737054A CN104600774A CN 104600774 A CN104600774 A CN 104600774A CN 201410737054 A CN201410737054 A CN 201410737054A CN 104600774 A CN104600774 A CN 104600774A
- Authority
- CN
- China
- Prior art keywords
- terminal
- mobile terminal
- data wire
- seat
- male seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
-
- 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
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/30—Charge provided using DC bus or data bus of a computer
Abstract
The invention provides a charging recognition circuit, a charging recognition method, a data line and a mobile terminal. The charging recognition circuit comprises a mobile terminal part circuit and a data line part circuit; the mobile terminal part circuit comprises a main control chip CPU (Central Processing Unit) and a mobile terminal plug; an ADC (Analog To Digital Converter) terminal of the main control chip CPU is connected with an ID (Internal Diameter) terminal of the mobile terminal plug; the data line part circuit comprises a data line plug and a data line socket; an ID terminal of the data line socket is connected with a metal casing of the data line plug; the data line socket is in insertion joint with the mobile terminal plug in a matched mode; the voltage of the ID terminal of the mobile terminal plug is detected by the main control chip CPU through the ADC terminal so as to identify a charging signal. According to the charging recognition circuit, the charging recognition method, the data line and the mobile terminal, the voltage of the ID terminal of the mobile terminal plug is detected to identify the charging signal and accordingly the problem that the transmission speed is reduced due to the fact that an identification signal is transmitted through D plus or D minus is solved.
Description
Technical field
The present invention relates to the technical field to mobile terminal charging, specifically relate to a kind of charging identification circuit, charging recognition methods, data wire and mobile terminal thereof.
Background technology
Transfer of data and charge function are all generally adopt a kind of line to realize in the use procedure of mobile device, therefore, will relate to and identify that this data wire is the problem that will realize charge function or transmit data functionality in the use of data wire.In the prior art, method for distinguishing is known to data wire charging and generally adopts D+ or D-to hold to transmit identification signal, thisly transmit identification signal by D+ or D-end and data wire charging is carried out knowing method for distinguishing can affect the data transmission procedure of USB.
Refer to Fig. 1, Fig. 1 is a kind of schematic diagram of prior art charging circuit, is exactly to adopt D-and ADC1 end to connect in this technical scheme, transmits identification signal to the ADC1 of mobile terminal, and then identify charger identification and charging wire by D-end; Although this technical scheme can solve the identification problem of charger and charging wire, impedance matching when there is factor data transmission changes and causes the problem of distortions of transmitted data.
Refer to Fig. 2, Fig. 2 is the schematic diagram of another kind of prior art charging circuit, as can be seen from the figure, this technical scheme has set up speed-sensitive switch, realize the identifying to charger and charging wire by the switching of speed-sensitive switch, but this technical scheme makes cost increase considerably owing to having set up speed-sensitive switch, in addition, how inappropriate words selected by speed-sensitive switch, also have the transmitting procedure that can affect data.
Summary of the invention
The embodiment of the present invention provides a kind of charging identification circuit, charging recognition methods, data wire and mobile terminal thereof, to solve the technical problem affecting transfer of data because adopting D+ or D-end to transmit identification signal and make because setting up speed-sensitive switch cost increase in prior art.
For solving the problem, embodiments provide a kind of charging identification circuit, described charging identification circuit comprises: mobile terminal partial circuit and data wire part parallel circuit, wherein, mobile terminal partial circuit comprises main control chip CPU and mobile terminal male seat, and the ADC terminal of described main control chip CPU is connected with the ID terminal of described mobile terminal male seat; Data wire part parallel circuit comprises data wire male seat and data wire female seat, and the ID terminal of described data wire female seat is connected with the metal shell of described data wire male seat; Described data wire female seat coordinates grafting with described mobile terminal male seat, and described main control chip CPU by the voltage of the ID terminal of mobile terminal male seat described in described ADC terminal test, and then identifies charging signals.
According to one preferred embodiment of the present invention, described charging identification circuit also comprises charger female seat, and metal shell one end ground connection of described charger female seat, the other end is connected with the metal shell of described data wire male seat.
According to one preferred embodiment of the present invention, described mobile terminal partial circuit also comprises the micro-chip processor MPU by earth resistance and described main control chip CPU parallel.
According to one preferred embodiment of the present invention, the earth resistance between the ID terminal of described data wire female seat and the metal shell of described data wire male seat is R
2, the earth resistance of the metal shell of described charger female seat is R
3, the output voltage of described charger female seat is U, and described main control chip CPU is by judging the voltage U of described mobile terminal male seat ID terminal
1whether be described earth resistance R
1with described earth resistance R
2and R
3partial pressure value in parallel identifies described charging signals.
According to one preferred embodiment of the present invention, the output voltage V0 of described charger female seat and the ID terminal voltage U of described mobile terminal male seat
1between meet following formula: U
1=V0R
2r
3/ (R
1r
2+ R
2r
3+ R
1r
3), wherein, V0 is common voltage.
For solving the problems of the technologies described above, the present invention also provides a kind of charging recognition methods, described charging recognition methods comprises: the ADC terminal of the main control chip CPU of mobile terminal is connected with the ID terminal of mobile terminal male seat, the ID terminal of data wire female seat is connected with the metal shell of data wire male seat, described data wire female seat coordinates grafting with described mobile terminal male seat, described main control chip CPU by the voltage of the ID terminal of mobile terminal male seat described in described ADC terminal test, and then identifies charging signals.
According to one preferred embodiment of the present invention, metal shell one end ground connection of charger female seat, the other end is connected with the metal shell of described data wire male seat, and described mobile terminal also comprises by earth resistance R
1with the micro-chip processor MPU of described main control chip CPU parallel, the earth resistance between the ID terminal of described data wire female seat and the metal shell of described data wire male seat is R
2, the earth resistance of the metal shell of described charger female seat is R
3, the output voltage of described charger female seat is U, and described main control chip CPU is by judging the voltage U of described mobile terminal male seat ID terminal
1whether be described earth resistance R
1with described earth resistance R
2and R
3partial pressure value in parallel identifies described charging signals.
According to one preferred embodiment of the present invention, the output voltage V0 of described charger female seat and the ID terminal voltage U of described mobile terminal male seat
1between meet following formula: U
1=V0R
2r
3/ (R
1r
2+ R
2r
3+ R
1r
3), wherein, V0 is common voltage.
For solving the problems of the technologies described above, the present invention also provides a kind of data wire, and the ID terminal of described data wire female seat is connected with the metal shell of described data wire male seat, and the earth resistance of the ID terminal of described data wire female seat and the metal shell of described data wire male seat is R
2.
For solving the problems of the technologies described above, the present invention also provides a kind of mobile terminal, and wherein, the ADC terminal of the main control chip CPU of described mobile terminal is connected with the ID terminal of mobile terminal male seat, and micro-chip processor MPU is by earth resistance R
1with described main control chip CPU parallel, described main control chip CPU by the voltage of the ID terminal of mobile terminal male seat described in described ADC terminal test, and then identifies charging signals.
Relative to prior art, the mobile terminal main control chip CPU of charging identification circuit provided by the invention identifies charging signals by the voltage of the ID terminal of ADC terminal test mobile terminal male seat, solves the technical problem affecting transfer of data because adopting D+ or D-end to transmit identification signal and make because setting up speed-sensitive switch cost increase in prior art.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic diagram of prior art charging circuit;
Fig. 2 is the schematic diagram of another kind of prior art charging circuit;
Fig. 3 is that the present invention charges the schematic diagram of identification circuit one preferred embodiment; And
Fig. 4 is the wire rod cutaway view of data wire embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.It is emphasized that following examples are only for illustration of the present invention, but scope of the present invention is not limited.Same, following examples are only section Example of the present invention and not all embodiments, and those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of protection of the invention.
Refer to Fig. 3, Fig. 3 is that the present invention charges the schematic diagram of identification circuit one preferred embodiment, and this charging identification circuit comprises mobile terminal partial circuit 1 and data wire part parallel circuit 2.
Specifically, this mobile terminal partial circuit 1 comprises main control chip CPU 11 and mobile terminal male seat 12, wherein, the ADC terminal of main control chip CPU11, USB-DM (USB Data Minus, usb data negative signal) terminal, USB-DP (USB Data Positive, usb data positive signal) terminal connect one to one with the ID terminal of mobile terminal male seat 12, D-terminal and D+ terminal respectively.
This data wire part parallel circuit 2 comprises data wire male seat 21 and data wire female seat 22, wherein, the ID terminal of data wire female seat 22, VBUS terminal, D-terminal, D+ terminal connect one to one with the metal shell (PM, Package of Metal) of data wire male seat 21, VBUS terminal, D-terminal and D+ terminal respectively.
Wherein, data wire female seat 22 coordinates grafting with mobile terminal male seat 12, and main control chip CPU11 by the voltage of the ID terminal of ADC terminal test mobile terminal male seat 12, and then identifies charging signals.
Preferably, this charging identification circuit also comprises charger female seat 31, metal shell (PM) one end ground connection of this charger female seat 31, the other end is connected with the metal shell of data wire male seat 21, wherein, PM (the package of metal) pin in charger female seat 31 is the plug surface metal of female seat; PM pin in data wire male seat 21 is the plug surface metal of male seat.
In addition, mobile terminal partial circuit also comprises by earth resistance R
1the micro-chip processor MPU 13 in parallel with main control chip CPU11, wherein, this micro-chip processor MPU 13 is for managing the discharge and recharge of battery, and the pin voltage of micro-chip processor MPU can be 2.8V.
Further, the earth resistance between the ID terminal of data wire female seat 22 and the metal shell of data wire male seat 21 is R
2, the earth resistance of the metal shell of charger female seat 31 is R
3, the output voltage of charger female seat 31 is U, and main control chip CPU 11 is by judging the voltage U of the ID terminal of mobile terminal male seat 12
1whether be earth resistance R
1with earth resistance R
2and R
3partial pressure value in parallel identifies charging signals.
Specifically as follows according to calculation process, in whole charging identification circuit, earth resistance R
2and R
3rear and R in parallel
1series connection, data wire part parallel circuit 2 is R ', R '=R with the all-in resistance of charger female seat 31 part
2× R
3/ (R
2+ R
3), main control chip CPU 11 is by judging the voltage U of the ID terminal of mobile terminal male seat 12
1whether meet U
1=UR '/(R '+R
1), R ' being substituted into this formula has: U
1=UR
2r
3/ (R
1r
2+ R
2r
3+ R
1r
3).Suppose that the output voltage U of charger female seat 31 is V0, wherein, V0 is common voltage, and can be 5V or 3.7V etc., then main control chip CPU 11 be by the voltage U of the ID terminal of mobile terminal male seat 12 being detected
1=V0R
2r
3/ (R
1r
2+ R
2r
3+ R
1r
3) time, can judge have charger to be linked in circuit, signal is charging signals according to this, and then mobile terminal receives charger charging.
The charging identification circuit that the embodiment of the present invention provides, utilize mobile terminal main control chip CPU to identify charging signals by the voltage of the ID terminal of ADC terminal test mobile terminal male seat, solve the technical problem affecting transfer of data because adopting D+ or D-end to transmit identification signal and make because setting up speed-sensitive switch cost increase in prior art.
In addition, the present invention also provides a kind of charging recognition methods based on above-mentioned charging identification circuit, be specially: the ADC terminal of the main control chip CPU of mobile terminal is connected with the ID terminal of mobile terminal male seat, the ID terminal of data wire female seat is connected with the metal shell of data wire male seat; Data wire female seat coordinates grafting with mobile terminal male seat, and main control chip CPU by the voltage of the ID terminal of ADC terminal test mobile terminal male seat, and then identifies charging signals.
Wherein, metal shell one end ground connection of charger female seat, the other end is connected with the metal shell of data wire male seat, and mobile terminal also comprises by earth resistance R
1with the micro-chip processor MPU of main control chip CPU parallel, the earth resistance between the ID terminal of data wire female seat and the metal shell of data wire male seat is R
2, the earth resistance of the metal shell of charger female seat is R
3, the output voltage of charger female seat is U, and main control chip CPU is by judging the voltage U of mobile terminal male seat ID terminal
1whether be earth resistance R
1with described earth resistance R
2and R
3partial pressure value in parallel identifies charging signals.
The output voltage V0 of charger female seat and the ID terminal voltage U of mobile terminal male seat
1between meet following formula: U
1=V0R
2r
3/ (R
1r
2+ R
2r
3+ R
1r
3).Its computational process and principle are introduced in the above-described embodiments, repeat no more herein.
In prior art, the ID end of data wire part parallel circuit is generally unsettled, for this reason, present invention also provides a kind of data wire, the ID terminal of data wire female seat is connected with the metal shell of data wire male seat by this data wire, make data wire inside have more a line compared to existing technology, refer to Fig. 4, Fig. 4 is the wire rod cutaway view of data wire embodiment of the present invention.
In prior art, the ID line of grey is generally unsettled setting, and its metal shell with data wire male seat is then connected by the application, and with common data wire ratio, charging wire becomes 5 by 4.Wherein, white and green line are respectively data minus signal and positive signal line, and black is earth connection, and redness is USB pressure-wire, outside general PVC (Polyvinyl chloride polymer, polyvinyl chloride) the material parcel adopting black.
Wherein, the earth resistance of the ID terminal of data wire female seat and the metal shell of data wire male seat can be set to R
2.
In addition, the present invention also provides a kind of mobile terminal, and the ADC terminal of the main control chip CPU of this mobile terminal is connected with the ID terminal of mobile terminal male seat, and micro-chip processor MPU is by earth resistance R
1with main control chip CPU parallel, main control chip CPU by the voltage of the ID terminal of ADC terminal test mobile terminal male seat, and then identifies charging signals.For within the scope that other each functional structures of mobile terminal can be understood those skilled in the art, no longer describe in detail herein.
The foregoing is only a kind of embodiment of the present invention; not thereby limit the scope of the invention; every utilize specification of the present invention and accompanying drawing content to do equivalent device or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a charging identification circuit, is characterized in that, described charging identification circuit comprises:
Mobile terminal partial circuit, comprises main control chip CPU and mobile terminal male seat, and wherein, the ADC terminal of described main control chip CPU is connected with the ID terminal of described mobile terminal male seat;
Data wire part parallel circuit, comprises data wire male seat and data wire female seat, and wherein, the ID terminal of described data wire female seat is connected with the metal shell of described data wire male seat;
Wherein, described data wire female seat coordinates grafting with described mobile terminal male seat, and described main control chip CPU by the voltage of the ID terminal of mobile terminal male seat described in described ADC terminal test, and then identifies charging signals.
2. charge identification circuit according to claim 1, it is characterized in that, described charging identification circuit also comprises charger female seat, and metal shell one end ground connection of described charger female seat, the other end is connected with the metal shell of described data wire male seat.
3. charge identification circuit according to claim 2, it is characterized in that, described mobile terminal partial circuit also comprises by earth resistance R
1with the micro-chip processor MPU of described main control chip CPU parallel.
4. charge identification circuit according to claim 3, it is characterized in that, the earth resistance between the ID terminal of described data wire female seat and the metal shell of described data wire male seat is R
2, the earth resistance of the metal shell of described charger female seat is R
3, the output voltage of described charger female seat is U, and described main control chip CPU is by judging the voltage U of described mobile terminal male seat ID terminal
1whether be described earth resistance R
1with described earth resistance R
2and R
3partial pressure value in parallel identifies described charging signals.
5. charge identification circuit according to claim 4, it is characterized in that, the output voltage V0 of described charger female seat and the ID terminal voltage U of described mobile terminal male seat
1between meet following formula: U
1=V0R
2r
3/ (R
1r
2+ R
2r
3+ R
1r
3), wherein, V0 is common voltage.
6. a charging recognition methods, it is characterized in that, described charging recognition methods comprises:
The ADC terminal of the main control chip CPU of mobile terminal is connected with the ID terminal of mobile terminal male seat, and the ID terminal of data wire female seat is connected with the metal shell of data wire male seat;
Described data wire female seat coordinates grafting with described mobile terminal male seat, and described main control chip CPU by the voltage of the ID terminal of mobile terminal male seat described in described ADC terminal test, and then identifies charging signals.
7. charging recognition methods according to claim 6, is characterized in that, metal shell one end ground connection of charger female seat, the other end is connected with the metal shell of described data wire male seat, and described mobile terminal also comprises by earth resistance R
1with the micro-chip processor MPU of described main control chip CPU parallel, the earth resistance between the ID terminal of described data wire female seat and the metal shell of described data wire male seat is R
2, the earth resistance of the metal shell of described charger female seat is R
3, the output voltage of described charger female seat is U, and described main control chip CPU is by judging the voltage U of described mobile terminal male seat ID terminal
1whether be described earth resistance R
1with described earth resistance R
2and R
3partial pressure value in parallel identifies described charging signals.
8. charging recognition methods according to claim 7, is characterized in that, the output voltage V0 of described charger female seat and the ID terminal voltage U of described mobile terminal male seat
1between meet following formula: U
1=V0R
2r
3/ (R
1r
2+ R
2r
3+ R
1r
3), wherein, V0 is common voltage.
9. a data wire, is characterized in that, the ID terminal of described data wire female seat is connected with the metal shell of described data wire male seat, and the earth resistance of the ID terminal of described data wire female seat and the metal shell of described data wire male seat is R
2.
10. a mobile terminal, is characterized in that, the ADC terminal of the main control chip CPU of described mobile terminal is connected with the ID terminal of mobile terminal male seat, and micro-chip processor MPU is by earth resistance R
1with described main control chip CPU parallel, described main control chip CPU by the voltage of the ID terminal of mobile terminal male seat described in described ADC terminal test, and then identifies charging signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737054.6A CN104600774B (en) | 2014-12-05 | 2014-12-05 | Charging recognition circuit, charging recognition method, data line and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737054.6A CN104600774B (en) | 2014-12-05 | 2014-12-05 | Charging recognition circuit, charging recognition method, data line and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104600774A true CN104600774A (en) | 2015-05-06 |
| CN104600774B CN104600774B (en) | 2017-03-22 |
Family
ID=53126378
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|---|---|---|---|
| CN201410737054.6A Active CN104600774B (en) | 2014-12-05 | 2014-12-05 | Charging recognition circuit, charging recognition method, data line and mobile terminal |
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| CN105071484A (en) * | 2015-08-25 | 2015-11-18 | 广东欧珀移动通信有限公司 | Charging method and apparatus of terminal having data exchange function |
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| CN107276159A (en) * | 2017-06-27 | 2017-10-20 | 维沃移动通信有限公司 | A kind of battery charge controller, method and mobile terminal |
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| CN107276159A (en) * | 2017-06-27 | 2017-10-20 | 维沃移动通信有限公司 | A kind of battery charge controller, method and mobile terminal |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104600774B (en) | 2017-03-22 |
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