CN105826975B - A kind of charging circuit, mobile terminal and charge control method - Google Patents
A kind of charging circuit, mobile terminal and charge control method Download PDFInfo
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- CN105826975B CN105826975B CN201610180538.4A CN201610180538A CN105826975B CN 105826975 B CN105826975 B CN 105826975B CN 201610180538 A CN201610180538 A CN 201610180538A CN 105826975 B CN105826975 B CN 105826975B
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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
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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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
- H02J7/00041—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors in response to measured battery parameters, e.g. voltage, current or temperature profile
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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
- H02J7/007—Regulation of charging or discharging current or voltage
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a kind of charging circuit, mobile terminal and charge control methods, are related to electronic technology field, solve the problem of that apple charger is identified as nonstandard charger and reduces charging rate by conventional method, which includes：Connecting interface, including multiple connecting pins, each connecting pin are connect with a signal output apparatus of charger respectively；Regulator circuit is connect with the first connecting pin, when the signal output apparatus being connected with the first connecting pin exports unstable voltage value, by the voltage stabilization at the first connecting pin in the first preset voltage value；First charging control circuit, it is connect respectively with connecting interface and battery to be charged, obtain the voltage value at each connecting pin, it is the first preset voltage value when determining at the first connecting pin, when voltage value at other connecting pins is unstable state, sends out and the current controling signal that rechargeable battery charges is treated using default safe current.The solution of the present invention improves the charging rate of apple charger, and the user experience is improved.
Description
Technical field
The present invention relates to electronic technology fields, and are controlled more particularly, to a kind of charging circuit, mobile terminal and charging
Method processed.
Background technology
As the growth of Apples Market share encounters the feelings of apple charger when user is used outside non-original-pack charger
Condition is more and more.And for cell phone, if user's purchase is that (Media Tek, MediaTek Inc.'s share are limited using MTK
Company) Platform Designing mobile phone, it is apple charger to have no idea to identify currently used.
The mobile phone of traditional MTK Platform Designings is that apple charger is classified as nonstandard charger, is set according to nonstandard charger
It charges.And in view of common non-standard charger all derives from some individual workships, quality is unqualified.Therefore for safety
Consider, can be charged using lower charging current, with anti-tamper charger, and then damages mobile phone, or even battery combustion occur
The serious safety accident of burning etc..
Apple charger is identified as nonstandard charger by conventional method, causes charging current very low, and charging rate is very slow, no
The fan-out capability that apple charger can be made full use of reduces the charging rate of mobile phone, affects user experience.
Invention content
A kind of charging circuit of offer of the embodiment of the present invention, mobile terminal and charge control method, to solve conventional method handle
Apple charger is identified as nonstandard charger, causes charging current very low, and charging rate is very slow, apple cannot be made full use of to charge
The problem of fan-out capability of device reduces the charging rate of mobile phone, affects user experience.
In a first aspect, providing a kind of charging circuit, the charging circuit is connect with a charger, the charging circuit packet
It includes：
Connecting interface, including multiple connecting pins, each connecting pin export electricity with a signal of the charger respectively
Road connects；
Regulator circuit is connect with the first connecting pin of the connecting pin, for when company corresponding with first connecting pin
When the signal output apparatus output connect is unstable voltage value, the voltage stabilization at first connecting pin is preset first
Voltage value；
First charging control circuit is connect with the connecting interface and battery to be charged respectively, each described for obtaining
Voltage value at connecting pin is first preset voltage value when determining at first connecting pin, removes first connecting pin
When voltage value at other outer connecting pins is unstable state, send out using preset safe current to the battery to be charged into
First current controling signal of row charging, makes the charger according to first current controling signal to the battery to be charged
It charges.
Second aspect provides a kind of mobile terminal, including：Any one of them charging circuit as above.
The third aspect provides a kind of charge control method applied to any one of them charging circuit as above, described
Charging circuit connect with a charger, the charge control method includes：
Obtain the voltage value at each connecting pin；
Judge whether the voltage value at the connecting pin is first preset voltage value；
It is first preset voltage value when determining at first connecting pin, other companies in addition to first connecting pin
When to connect voltage value at end be unstable state, send out using preset that safe current charges to the battery to be charged the
One current controling signal makes the charger be charged to the battery to be charged according to first current controling signal.
In this way, in the embodiment of the present invention, it, can be by a signal output apparatus of nonstandard charger by increasing regulator circuit
Voltage stabilization in the first preset voltage value (be different from voltage value of the apple charger under the signal output apparatus), so as to
Nonstandard charger and apple charger is recognized accurately, and the nonstandard charger ability use for only meeting above-mentioned voltage conditions is smaller
Safe current charging, solve conventional method and apple charger be identified as nonstandard charger, cause charging current very low, fill
Electric speed is very slow, cannot make full use of the fan-out capability of apple charger, reduces the charging rate of mobile phone, affects user's body
The problem of testing.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the present invention
Example is applied, it for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structural schematic diagram of charging circuit of the present invention；
Fig. 2 is a kind of structural schematic diagram of connection type of pull down resistor of charging circuit of the present invention；
Fig. 3 is the structural schematic diagram of the pull down resistor another kind connection type of charging circuit of the present invention；
Fig. 4 is the flow chart of charge control method of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
First embodiment
As shown in Figure 1, the charging circuit of the embodiment of the present invention, the charging circuit is connect with a charger, the charging
Circuit includes：
Connecting interface, including multiple connecting pins, each connecting pin export electricity with a signal of the charger respectively
Road connects.
Here, connecting interface includes multiple connecting pins, and each connecting pin is connect with the signal output apparatus of charger respectively,
To smoothly access charger, to complete to charge.
Regulator circuit is connect with the first connecting pin of the connecting pin, for when company corresponding with first connecting pin
When the signal output apparatus output connect is unstable voltage value, the voltage stabilization at first connecting pin is preset first
Voltage value.
For nonstandard charger, digital positive signal DP circuits are hanging with digital negative signal DM circuits, and output is all
Unstable voltage value, to which nonstandard charger and apple charger can not be distinguished.Here, it by regulator circuit, can incite somebody to action
The voltage stabilization of one signal output apparatus of nonstandard charger is nonstandard so as to determine access in the first preset voltage value
Charger.
Wherein, in order to guarantee to accurately distinguish nonstandard charger and apple charger, the first preset voltage value should be set
For the voltage value different from apple charger under corresponding circuits, generally it is set to the first preset voltage value and is less than apple charger
Voltage value under corresponding circuits.
First charging control circuit is connect with the connecting interface and battery to be charged respectively, each described for obtaining
Voltage value at connecting pin is first preset voltage value when determining at first connecting pin, removes first connecting pin
When voltage value at other outer connecting pins is unstable state, send out using preset safe current to the battery to be charged into
First current controling signal of row charging, makes the charger according to first current controling signal to the battery to be charged
It charges.
Here, if at the first connecting pin being the first preset voltage value, the voltage value at other connecting pins is unstable shape
State, then can determine access is nonstandard charger, and the smaller safe current of use charges.
The charging circuit of the embodiment of the present invention can be exported a signal of nonstandard charger by increasing regulator circuit
The voltage stabilization of circuit in the first preset voltage value (be different from voltage value of the apple charger under the signal output apparatus), from
And nonstandard charger and apple charger can be recognized accurately, and the nonstandard charger for only meeting above-mentioned voltage conditions just uses
Smaller safe current charging, solves conventional method and apple charger is identified as nonstandard charger, lead to charging current very
Low, charging rate is very slow, cannot make full use of the fan-out capability of apple charger, reduces the charging rate of mobile phone, affects
The problem of user experience.
Specifically, first connecting pin be the connecting pin being connect with the digital positive signal circuit of the charger or with
The connecting pin of the digital negative signal circuit connection of the charger.
For nonstandard charger, digital positive signal DP circuits and digital negative signal DM circuit outputs are all unstable constant voltages
Value, here, by the way that a regulator circuit is arranged in the connecting pin of DP circuits or in the connecting pin of DM circuits, can by DP circuits or
The voltage stabilization of person's DM circuits is in a fixed value, to be distinguished with apple charger.
Preferably, the regulator circuit may include：One end is connect with first connecting pin, the drop-down of other end ground connection
Resistance R.
Here, the resistance value of pull down resistor R can be set according to demand, such as may be set to 1M Ω.
At this point, can be by the voltage accurate stable at the first connecting pin in the first preset voltage value by pull down resistor R.
Wherein, if as shown in Fig. 2, the first connecting pin is the connecting pin being connect with the DP circuits of charger, pull down resistor R connects
On DP circuits, then DP circuits and DM circuit outputs be all unstable voltage value when, the voltage of DP circuits can be stabilized in
First preset voltage value, and DM circuits still maintain high-impedance state, without fixed state.
Similarly, if as shown in figure 3, the first connecting pin is the connecting pin being connect with the DM circuits of charger, pull down resistor R connects
On DM circuits, then DP circuits and DM circuit outputs be all unstable voltage value when, the voltage of DM circuits can be stabilized in
First preset voltage value, and DP circuits still maintain high-impedance state, without fixed state.
Further, the charging circuit can also include：
Second charging control circuit is connect with the connecting interface and battery to be charged respectively, each described for obtaining
Voltage value at connecting pin is different from described first when determining in the voltage value at first connecting pin and the connecting interface
When voltage value at another connecting pin of connecting pin is equal, second to charge using the corresponding normalized current of charger is sent out
Current controling signal makes the charger be charged to the battery to be charged according to second current controling signal.
For standard charger, DP circuits and DM circuits are short circuits, therefore DP circuits and the voltage value phase at DM circuits
Deng.Here, if it is determined that be different from another connecting pin of the first connecting pin in the voltage value and connecting interface at the first connecting pin
The voltage value at place is equal, so that it may to determine that the charger of access is standard charger, charge, carry by using normalized current
High charging rate, ensure that user experience.
In addition, for standard charger, according to the BC1.2 charging interface detection protocols of standard, DP/DM circuits are in connecting pin
Place can simultaneously there are one the short time 0.6V level, and hence it is also possible to according to the level of 0.6V come judge access whether be
Standard charger.Such as may determine that level of the DP/DM circuits at connecting pin whether and meanwhile fall between 0.375V and 1.2V,
If it is can determine whether access is standard charger.
Further, the charging circuit can also include：
Third charging control circuit is connect with the connecting interface and circuit to be charged respectively, each described for obtaining
Voltage value at connecting pin is different from described first when determining in the voltage value at first connecting pin and the connecting interface
When voltage value at another connecting pin of connecting pin is all higher than the second preset voltage value, send out using the corresponding standard electric of charger
The third current controling signal that stream charges makes the charger according to the third current controling signal to described to be charged
Battery charges；First preset voltage value is less than second preset voltage value.
For apple charger, three classes as shown in table 1 below can be classified as：
| Apple charger type | DP circuit voltages | DM circuit voltages |
| IPHONE | 2.6V | 2V |
| IPAD2 | 2V | 2.6V |
| IPAD4 | 2.6V | 2.6V |
Table 1
The voltage of the DP/DM circuit outputs of apple charger be can be seen that from the data of table 1 all in 2V and 2V or more.This
In, the second preset voltage value may be set to the numerical value less than 2V, and corresponding such as 1.2V or 1.4V, the first preset voltage value is set
It is set to the numerical value less than the second preset voltage value, such as 0.8V.
If it is determined that being different from another connecting pin of the first connecting pin in voltage value and connecting interface at the first connecting pin
The voltage value at place is all higher than the second preset voltage value, then can determine that the charger of access is apple charger, rather than nonstandard fill
Electric appliance charges by using normalized current, can make full use of the fan-out capability of apple charger, improves charging speed
Degree, ensure that user experience.
Wherein, a comparator specifically can be used and be different from the in voltage value and the connecting interface at the first connecting pin to determine
Whether the voltage value at another connecting pin of one connecting pin is all higher than the second preset voltage value.
A specific implementation of the charging circuit of the embodiment of the present invention is illustrated below below：
The charging circuit of the embodiment of the present invention is connect with a charger, and charging circuit includes：Connecting interface, regulator circuit,
First charging control circuit, the second charging control circuit and third charging control circuit.Connecting interface includes multiple connecting pins, often
One connecting pin is connect with a signal output apparatus of charger respectively.Regulator circuit includes the first connecting pin of one end and connecting pin
Connection, the pull down resistor of other end ground connection.First connecting pin is the connecting pin being connect with the DP circuits of charger.Wherein, second
Preset voltage value is 1.2V, and the first preset voltage value is less than 1.2V, and the resistance value of pull down resistor is 1M Ω.
Determine at the first connecting pin to be the first preset voltage value by the first charging control circuit, other connecting pins are shakiness
When determining state, i.e. DP can be there are one fixed voltage, and DM still maintains high-impedance state, without fixed state, it may be determined that charging
Device is nonstandard charger, and the smaller safe current of use charges, and ensure that the safety of charging.
Determine that being different from first in voltage value and connecting interface at the first connecting pin connects by the second charging control circuit
The voltage value connect at another connecting pin at end is equal, i.e., when DP circuits are equal with the voltage of DM circuit outputs, it may be determined that charger
When standard charger, charged using larger normalized current, ensure that charging rate and user experience.
Determine that being different from first in voltage value and connecting interface at the first connecting pin connects by third charging control circuit
When connecing the voltage value at another connecting pin at end and being all higher than 1.2V, i.e. the voltage of DP/DM circuit outputs is all higher than 1.2V, it may be determined that
Charger is apple charger, is charged using larger normalized current, ensure that charging rate and user experience.
The charging circuit of the embodiment of the present invention allows cell phone terminal using MTK platforms by increasing regulator circuit,
Apple charger and general nonstandard charger can be distinguished, to individually carry out charging setting for apple charger,
The charging rate of apple charger is improved, the user experience is improved.
Second embodiment
Since the charging circuit of the embodiment of the present invention is applied to mobile terminal, the embodiment of the present invention additionally provides one
Kind mobile terminal, including：Charging circuit as described in above-described embodiment.
The mobile terminal of the present invention such as can be mobile phone, tablet computer mobile electronic device.
Wherein, the realization embodiment of above-mentioned charging circuit can also reach suitable for the embodiment of the mobile terminal
To identical technique effect.
3rd embodiment
As shown in figure 4, being applied to filling for the charging circuit as described in above-described embodiment an embodiment of the present invention provides a kind of
Electric control method, the charging circuit are connect with a charger, and the charge control method includes：
Step 401, the voltage value at each connecting pin is obtained.
Step 402, judge whether the voltage value at the connecting pin is first preset voltage value.
For nonstandard charger, digital positive signal DP circuits are hanging with digital negative signal DM circuits, and output is all
Unstable voltage value, to which nonstandard charger and apple charger can not be distinguished.Here, it by regulator circuit, can incite somebody to action
The voltage stabilization of one signal output apparatus of nonstandard charger is nonstandard so as to determine access in the first preset voltage value
Charger.
Wherein, in order to guarantee to accurately distinguish nonstandard charger and apple charger, the first preset voltage value should be set
For the voltage value different from apple charger under corresponding circuits, generally it is set to the first preset voltage value and is less than apple charger
Voltage value under corresponding circuits.
Step 403, it is first preset voltage value when determining at first connecting pin, in addition to first connecting pin
Other connecting pins at voltage value when being unstable state, send out and the battery to be charged carried out using presetting safe current
Charging the first current controling signal, make the charger according to first current controling signal to the battery to be charged into
Row charging.
Here, if at the first connecting pin being the first preset voltage value, the voltage value at other connecting pins is unstable shape
State, then can determine access is nonstandard charger, and the smaller safe current of use charges.
The charging circuit of the embodiment of the present invention can be exported a signal of nonstandard charger by increasing regulator circuit
The voltage stabilization of circuit in the first preset voltage value (be different from voltage value of the apple charger under the signal output apparatus), from
And nonstandard charger and apple charger can be recognized accurately, and the nonstandard charger for only meeting above-mentioned voltage conditions just uses
Smaller safe current charging, solves conventional method and apple charger is identified as nonstandard charger, lead to charging current very
Low, charging rate is very slow, cannot make full use of the fan-out capability of apple charger, reduces the charging rate of mobile phone, affects
The problem of user experience.
Further, the charge control method can also include：
It is different from first connecting pin in the voltage value at first connecting pin and the connecting interface when determining
When voltage value at another connecting pin is equal, the second current control to charge using the corresponding normalized current of charger is sent out
Signal makes the charger be charged to the battery to be charged according to second current controling signal.
For standard charger, DP circuits and DM circuits are short circuits, therefore DP circuits and the voltage value phase at DM circuits
Deng.Here, if it is determined that be different from another connecting pin of the first connecting pin in the voltage value and connecting interface at the first connecting pin
The voltage value at place is equal, so that it may to determine that the charger of access is standard charger, charge, carry by using normalized current
High charging rate, ensure that user experience.
In addition, for standard charger, according to the BC1.2 charging interface detection protocols of standard, DP/DM circuits are in connecting pin
Place can simultaneously there are one the short time 0.6V level, and hence it is also possible to according to the level of 0.6V come judge access whether be
Standard charger.Such as may determine that level of the DP/DM circuits at connecting pin whether and meanwhile fall between 0.375V and 1.2V,
If it is can determine whether access is standard charger.
Further, the charge control method can also include：
It is different from first connecting pin in the voltage value at first connecting pin and the connecting interface when determining
When voltage value at another connecting pin is all higher than the second preset voltage value, sends out and filled using the corresponding normalized current of charger
The third current controling signal of electricity makes the charger be carried out to the battery to be charged according to the third current controling signal
Charging；First preset voltage value is less than second preset voltage value.
For apple charger, three classes as shown in table 1 below can be classified as：
| Apple charger type | DP circuit voltages | DM circuit voltages |
| IPHONE | 2.6V | 2V |
| IPAD2 | 2V | 2.6V |
| IPAD4 | 2.6V | 2.6V |
Table 1
The voltage of the DP/DM circuit outputs of apple charger be can be seen that from the data of table 1 all in 2V and 2V or more.This
In, the second preset voltage value may be set to the numerical value less than 2V, and corresponding such as 1.2V or 1.4V, the first preset voltage value is set
It is set to the numerical value less than the second preset voltage value, such as 0.8V.
If it is determined that being different from another connecting pin of the first connecting pin in voltage value and connecting interface at the first connecting pin
The voltage value at place is all higher than the second preset voltage value, then can determine that the charger of access is apple charger, rather than nonstandard fill
Electric appliance charges by using normalized current, can make full use of the fan-out capability of apple charger, improves charging speed
Degree, ensure that user experience.
The charge control method of the embodiment of the present invention, allows cell phone terminal using MTK platforms, apple can be charged
Device is distinguished with general nonstandard charger, to individually carry out charging setting for apple charger, improves apple charging
The charging rate of device, the user experience is improved.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of charging circuit, the charging circuit is connect with a charger, which is characterized in that the charging circuit includes：
Connecting interface, including multiple connecting pins, each connecting pin connect with a signal output apparatus of the charger respectively
It connects；
Regulator circuit is connect with the first connecting pin of the connecting pin, for when connection corresponding with first connecting pin
When signal output apparatus output is unstable voltage value, by the voltage stabilization at first connecting pin in the first predeterminated voltage
Value；
First charging control circuit is connect with the connecting interface and battery to be charged respectively, for obtaining each connection
Voltage value at end is first preset voltage value when determining at first connecting pin, in addition to first connecting pin
When voltage value at other connecting pins is unstable state, sends out and the battery to be charged is filled using default safe current
First current controling signal of electricity makes the charger be carried out to the battery to be charged according to first current controling signal
Charging；
The charging circuit further includes：
Third charging control circuit is connect with the connecting interface and battery to be charged respectively, for obtaining each connection
Voltage value at end, when determining that the voltage value at first connecting pin connect with the connecting interface different from described first
Voltage value at another connecting pin at end is when being all higher than the second preset voltage value, send out using the corresponding normalized current of charger into
The third current controling signal of row charging, makes the charger according to the third current controling signal to the battery to be charged
It charges；First preset voltage value is less than second preset voltage value.
2. charging circuit according to claim 1, which is characterized in that first connecting pin is the number with the charger
The connecting pin of word positive signal circuit connection or the connecting pin being connect with the digital negative signal circuit of the charger.
3. charging circuit according to claim 1, which is characterized in that the regulator circuit includes：
One end is connect with first connecting pin, the pull down resistor of other end ground connection.
4. charging circuit according to claim 1, which is characterized in that the charging circuit further includes：
Second charging control circuit is connect with the connecting interface and battery to be charged respectively, for obtaining each connection
Voltage value at end, when determining that the voltage value at first connecting pin connect with the connecting interface different from described first
When voltage value at another connecting pin at end is equal, the second electric current to charge using the corresponding normalized current of charger is sent out
Signal is controlled, the charger is made to be charged to the battery to be charged according to second current controling signal.
5. a kind of mobile terminal, which is characterized in that including：Charging circuit according to any one of claims 1-4.
6. a kind of charge control method applied to charging circuit according to any one of claims 1-4, charging electricity
Lu Yuyi chargers connect, which is characterized in that the charge control method includes：
Obtain the voltage value at each connecting pin；
Judge whether the voltage value at the connecting pin is first preset voltage value；
It is first preset voltage value, other connecting pins in addition to first connecting pin when determining at first connecting pin
When the voltage value at place is unstable state, the first electricity to charge to the battery to be charged using safe current is preset is sent out
Flow control signals make the charger be charged to the battery to be charged according to first current controling signal；
The charge control method further includes：
When determine the voltage value at first connecting pin and in the connecting interface it is another different from first connecting pin
When voltage value at connecting pin is all higher than the second preset voltage value, sends out and charged using the corresponding normalized current of charger
Third current controling signal makes the charger be filled to the battery to be charged according to the third current controling signal
Electricity；First preset voltage value is less than second preset voltage value.
7. charge control method according to claim 6, which is characterized in that the charge control method further includes：
When determine the voltage value at first connecting pin and in the connecting interface it is another different from first connecting pin
When voltage value at connecting pin is equal, the second current control letter to charge using the corresponding normalized current of charger is sent out
Number, so that the charger is charged to the battery to be charged according to second current controling signal.
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