CN101488589B - Battery assembly and charging state measurement method - Google Patents
Battery assembly and charging state measurement method Download PDFInfo
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- CN101488589B CN101488589B CN2008100031004A CN200810003100A CN101488589B CN 101488589 B CN101488589 B CN 101488589B CN 2008100031004 A CN2008100031004 A CN 2008100031004A CN 200810003100 A CN200810003100 A CN 200810003100A CN 101488589 B CN101488589 B CN 101488589B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a battery component. An interface of the battery component connected with a portable electronic device comprises at least three terminals, and the battery component comprises a battery, an identify circuit and a temperature sensing circuit. In addition, the identify circuit comprises an energy storage component and a current limiting component, and the temperature sensing circuit comprises a switch and a temperature sensing component, wherein the impedance of the temperature sensing component is changed along with the temperature of the battery component. The portable electronic device can determine the model of the battery component according to charging line shape generated in the charging of the energy storage component by the current limiting component, and the temperature sensing circuit is started to determine the temperature of the battery component.
Description
Technical field
The relevant a kind of battery component of the present invention, and particularly relevant a kind of battery component that is used for portable electronic device.
Background technology
The battery component of one portable electronic device (for example mobile phone, personal digital assistant, notebook computer etc.) can have different models, is used to provide the required energy of this portable electronic device start.Yet, before this battery component of charging, need to judge earlier the model of battery component, charge with the electric current of charging specification that the battery component that meets this model is provided and voltage.On the other hand, the electric current when temperature also is the judgement charging and the important criteria of voltage if the temperature of battery component is too high, then should reduces the electric current of charging or stop charging, avoid battery because of overheated damage.
For the signal of the model and the temperature that can obtain to be relevant to battery component, with the decision charged state, prior art adopts three electrodes being arranged on the battery component or four electrodes to obtain this signal usually.Yet compared to four electrodes, three electrodes have the advantage that reduces cost.
Fig. 1 Fig. 1 a is the schematic diagram of existing battery component.Please refer to Fig. 1, existing battery component 10 comprises battery 11, negative tempperature coefficient thermistor NTC1, resistance R 1, R2 and electrode 12,13,14.The positive pole of battery is coupled to electrode 14, and negative pole is coupled to electrode 12, resistance R 1 series resistor R2, and resistance R 1, R2 are connected to electrode 11,12.In addition, negative tempperature coefficient thermistor NTC1 and connecting resistance R2.Wherein, battery component 10 is received electric energy by electrode 13, and in electrode 13 measure the signal of telecommunication, the value of this signal of telecommunication is to determine according to the equivalent resistance of negative tempperature coefficient thermistor NTC1, resistance R 1, R2, so the signal of telecommunication can be known the model and the temperature of battery component 10 by inference thus.
Fig. 2 a is the schematic diagram of the resistance value scope of existing different battery component.Please also refer to Fig. 1 and Fig. 2 a.If in the battery of first kind of model, the value of selected resistance R 1, R2 is R1 ', R2 ', and then the scope of the equivalent resistance of negative tempperature coefficient thermistor NTC1, resistance R 1, R2 is R1 '～R1 '+R2 '.In the battery of second kind of model, the value of selected resistance R 1, R2 is R1 ", R2 ", then the scope of the equivalent resistance of negative tempperature coefficient thermistor NTC1, resistance R 1, R2 is R1 "～R1 "+R2 ".
When equivalent resistance drops on the scope of R1 '～R1 '+R2 ', judge that then this battery is the battery of first kind of model and knows its temperature by inference, and charge according to the charging specification of this battery.Similarly, when equivalent resistance drops on R1 "～R1 "+R2 " scope the time, judge that then this battery is the battery of second kind of model and knows its temperature by inference, and charge according to the charging specification of this battery.
Fig. 2 b is another schematic diagram of the resistance value scope of existing different battery component.Please also refer to Fig. 1 and Fig. 2 b.If the scope of the equivalent resistance of the battery of aforementioned two kinds of models overlaps together, as scope the R1 '～R1 that overlaps "+R2 " shown in, then drop on overlapping scope R1 '～R1 when measured equivalent resistance "+R2 " when (shown in the oblique line of Fig. 2 b), just have no way of knowing by inference the model and the temperature of this battery component.So, can't charge according to the charging specification of this battery.So, for fear of the situation that the scope of this kind equivalent resistance overlaps, need the scope of the equivalent resistance of the battery of different model is transferred narrow, yet the resistance value scope accuracy that makes temperature judge that narrows down reduces.
Therefore, be necessary to design a kind of battery component and charging device, overcoming the problems referred to above, and can accurately judge the model and the temperature of battery component, and adjust its charged state.
Summary of the invention
Therefore a purpose of the present invention provides a kind of battery component, and it is provided with in the portable electronic device, makes portable electronic device can accurately judge the model and the temperature of battery, and adjusts charged state, reduces cost simultaneously.
Another object of the present invention is in that a kind of charged state method of measurement is provided, in order to the model and the temperature of accurate judgement battery, and the charged state of adjustment battery.
According to above-mentioned purpose of the present invention, a kind of battery component is proposed, its interface that is connected with a portable electronic device has the first terminal, second terminal and the 3rd terminal.This battery component comprises: battery, identification circuit and temperature perception circuit, and identification circuit has energy storage component and current limliting assembly, and temperature perception circuit has a switch and temperature sense assembly.On the other hand, the both positive and negative polarity of battery couples the first terminal and second terminal respectively, and identification circuit and temperature perception both circuits are serially connected with between the first terminal and the 3rd terminal.The assembly annexation of identification circuit and temperature perception circuit is as follows: an end of energy storage component couples the first terminal, the current limliting component string is connected between energy storage component and the 3rd terminal, one end of switch couples the first terminal, and temperature sense component string is connected between switch and the 3rd terminal, and this temperature sense assembly can change its resistance value according to the temperature of battery component.
The charging that portable electronic device is produced when energy storage component being charged by the current limliting assembly with an electric current is linear, and with the model of identification battery component, then when switch open, temperature perception circuit can be activated the temperature of judging battery component.
According to purpose of the present invention, a kind of electronic installation is proposed, electronic installation comprises: reference power source, battery component and charged state control device.This battery component comprises: battery, identification circuit and temperature perception circuit, and identification circuit has energy storage component and current limliting assembly, and temperature perception circuit has switch and temperature sense assembly.On the other hand, the both positive and negative polarity of battery connects the first terminal and second terminal respectively, and identification circuit and temperature perception both circuits are serially connected with between the first terminal and the 3rd terminal.The assembly annexation of identification circuit and temperature perception circuit is as follows: an end of energy storage component couples the first terminal, the current limliting component string is connected between energy storage component and the 3rd terminal, one end of switch couples the first terminal, and temperature sense component string is connected between switch and the 3rd terminal, and this temperature sense assembly can change its resistance value according to the temperature of battery component.
And the charging that the charged state control device is produced when energy storage component being charged by the current limliting assembly with an electric current is linear, discerns the model of this battery component, follows switch open with start-up temperature perception circuit, and judges the temperature of battery component.According to embodiments of the invention, the unlatching of switch is optionally by for example linear control of the aforesaid charging of microcontroller interpretation, or can directly control by the charging potential of energy storage component.
According to another object of the present invention, a kind of charged state method of measurement is proposed, comprise in order to model and this charged state method of measurement of temperature of measuring a battery component: make an electric current by the current limliting assembly energy storage component that charges, then measuring one of this energy storage component in one first Preset Time charges linear, judge the model of this battery component according to this, make this electric current by a temperature sense assembly again, then measure the terminal voltage of this temperature sense assembly, judge the temperature of this battery component according to this in one second Preset Time.
As shown in the above description, battery component of the present invention and its charged state method of measurement can accurately be judged the model and the temperature of battery component, and adjust charged state.Simultaneously owing to not increasing extra number of terminals, so can reach the effect that reduces cost.
Description of drawings
For above-mentioned and other purposes, feature, advantage of the present invention can be become apparent, below conjunction with figs. is elaborated to preferred embodiment of the present invention, wherein:
Fig. 1 is the schematic diagram of existing battery component.
Fig. 2 a is the schematic diagram of the resistance value scope of existing different battery component.
Fig. 2 b is another schematic diagram of the resistance value scope of existing different battery component.
Fig. 3 a is the schematic diagram that illustrates according to the battery component of one embodiment of the invention.
Fig. 3 b is the schematic diagram that illustrates according to the battery component of another embodiment of the present invention.
Fig. 4 illustrates according to a kind of battery component of a preferred embodiment of the present invention and the schematic circuit diagram of charging device.
Fig. 5 is voltage and the time relation figure of battery component when accepting to measure that illustrates according to a preferred embodiment of the present invention.
Fig. 6 is voltage and the time relation figure of battery component when accepting to measure that illustrates according to a preferred embodiment of the present invention.
Embodiment
Can determine along with the electrical parameter of itself and the current limliting assembly that connected owing to discharging and recharging of energy storage component is linear, different electrical parameter will produce different discharge and recharge linear.Following embodiment of the present invention promptly designs according to above-mentioned characteristic, so that judge the model of battery exactly, simultaneously, also can judge the temperature of battery, with the charged state of decision battery.
The battery component of embodiments of the invention and charging device are to be used for portable electronic device, and portable electronic device is mobile phone, personal digital assistant, notebook computer etc. for example, below will be example explanation embodiments of the invention with the mobile phone.
Fig. 3 a is the schematic diagram that illustrates according to the battery component of one embodiment of the invention.With reference to figure 3a, battery component 30 comprises battery 31, battery identification circuit 32 and temperature perception circuit 33, and has terminal 1,2 and 3.The both positive and negative polarity of battery couples terminal 3,1 respectively, and battery identification circuit 32 and temperature perception circuit 33 be arranged at 1,2 of terminals, can discern the model and the temperature of battery respectively by battery identification circuit 32 and temperature perception circuit 33.
Fig. 3 b is the schematic diagram that illustrates according to the battery component of another embodiment of the present invention.Battery component 30 comprises battery 31, battery identification circuit 32 and temperature perception circuit 33, and battery identification circuit 32 has energy storage component 321 and current limliting assembly 322, and temperature perception circuit 33 has switch 331 and temperature sense assembly 332.1,2 of terminals, serial connection energy storage component 321 and current limliting assembly 322, and serial connection switch 331 and temperature sense assembly 332.Under this kind configuration, when switch 331 was opened, temperature sense assembly 332 can pass through switch 331 and splicing ear 1, and preferably, the on off state of switch 331 is controlled by the charged state of energy storage component.On the other hand, temperature sense assembly 332 can change its resistance value according to the temperature of battery component 30.
One reference power source can be by terminal 2 state identification circuit 30 so far of powering, and make flow through current limliting assembly 322 and of electric current to energy storage component 321 charging, respectively first preset time t 1 and second preset time t 2 in terminal 2 measure for example voltage V1 and voltage V2, voltage V1 is in order to the model of judgement battery component 30, and voltage V2 is in order to judge the temperature of battery component 30.In general, first preset time t 1 can be before the full electric energy of energy storage component 321 storages, and second preset time t 2 can be after the full electric energy of energy storage component 321 storages.
In addition, be noted that voltage V1 and voltage V2 only are exemplary, can according to energy storage component 321 determine with the numerical characteristic of current limliting assembly 322 preset time t 1 and preset time t 2 in terminal 2 measure electrical parameter, for example electric current I 1, I2.
When preset time t 1, switch 331 is for cutting out, and electric current is flowed through current limliting assembly 322 backs to energy storage component 321 chargings, so the value of voltage V1 will determine with the electrical parameter of current limliting assembly 322 according to energy storage component 321.When preset time t 2, energy storage component is in stable state (steady state), and can open switch 331 this moment, electric current is changed flow through temperature sense assembly 332, so the value of voltage V2 will be felt the electrical parameter of assembly 332 and determines according to temperature.
In order to grasp the charged state of energy storage component 321 really, to improve the signal accuracy of voltage V1, V2, so before reference power source supplies power to energy storage component 321, can be earlier by opening switch SW momently with terminal 2 ground connection, to remove the energy in the energy storage component 321.By remove removing the energy in the energy storage component 321, can guarantee the signal accuracy of voltage V1, V2, so that voltage V1, V2 are analyzed and judge the model and the temperature of battery component 30 exactly.
Fig. 4 illustrates according to a kind of battery component of a preferred embodiment of the present invention and the schematic circuit diagram of charging device, and this kind charging device can be arranged in the portable electronic devices as mobile phone, in order to aforesaid battery component charging.Please refer to Fig. 4, a charging device 400 comprises connector 420, reference power source 430 and microcontroller (MCU) 440, in order to battery component 410 is charged.
Battery component 410 can be regarded as the more detailed embodiment of the battery component 30 shown in Fig. 3 b, and it comprises battery 411, electric capacity 412 (i.e. an energy storage component), resistance 413 (i.e. a current limliting assembly), nmos pass transistor 414 (i.e. a switch) and negative tempperature coefficient thermistor 415 (i.e. a temperature sense assembly) and electrode 416,417,418.The anodal connection electrode 418 of battery 411, its negative pole couples electrode 416.At 416,417 at electrode, serial connection electric capacity 412 and resistance 413, in addition, transistor 414 is positioned at 415 of electrode 416 and thermistors, and grid is coupled to the node N1 that is connecting electric capacity 412 and resistance 413, so the on off state of transistor 414 is controlled by the terminal voltage of electric capacity 412.When transistor 414 was opened, thermistor 415 passed through transistor 414 and connection electrode 416.On the other hand, thermistor 415 also is coupled to electrode 417, and thermistor 415 changes its resistance value according to the temperature of battery component 410.
Reference power source 430 charges by 413 pairs of electric capacity 412 of resistance by electrode 417, first preset time t 1 after electric capacity 412 begins to charge and second preset time t 2, microcontroller 440 can obtain voltage V1, V2 by measured node N2, and carries out computational analysis respectively according to the magnitude of voltage of voltage V1, V2 to judge the model and the temperature of battery component 410.In general, first preset time t 1 can be before the full electric energy of electric capacity 412 storages, and preset time t 2 can be after being the full electric energy of electric capacity 412 storages.
Connector 420 comprises electrode 421,422,423, connects the electrode 416,417,418 of battery component 410 respectively accordingly.Electrode 421 ground connection, electrode 422 couples microcontroller 440, and electrode 423 can couple reference power source 430.Connector 420 is fixedly arranged in the mobile phone, is sent to mobile phone in order to the electric energy and the signal of telecommunication with battery component 410, required energy so that the mobile phone start to be provided.
Reference power source 430 can comprise reference voltage source 431 and resistance 433, optionally, reference voltage source 431 can couple electrode 423 and input from the electric energy of battery 411, and change this electric energy for decide voltage and being supplied to electrode 417 to charge by 413 pairs of electric capacity 412 of resistance by resistance 433 and electrode 422.
In addition, in a embodiment, can adopt reference current source with replacement reference voltage source 431, and replace electric capacity 412 with inductance according to this preferred embodiment, and adopt current-controlled switch and replace nmos pass transistor 414, can reach the model of judging battery component exactly and the effect of temperature equally.
Microcontroller 440 has analog-digital converter (ADC) 441 and control signal generator 443, analog-digital converter 441 is in order to be converted to digital signal respectively with voltage V1, V2, control signal generator 443 produces charged state control signal Sc in order to foundation digital signal S1, S2, with the charged state of control battery component 410.
In order to grasp the charged state of electric capacity 412 really, to improve the signal accuracy of voltage V1, V2, so charging device 400 for example adopt a nmos pass transistor 450 as switch with electric capacity 412 ground connection, and the grid of transistor 450 connects microcontroller 440, its drain electrode connection electrode 422 and source ground.That is to say, before 430 pairs of electric capacity 412 of reference power source charge, pass through transistor 450 earlier with electrode 417 ground connection, to remove the energy in the electric capacity 412.Microcontroller 440 exportable control signal Sg are to the grid of transistor 450, with the switching of the drain interpolar of oxide-semiconductor control transistors 450.
By removing the energy in the electric capacity, can guarantee the signal accuracy of voltage V1, V2, so that voltage V1, V2 are analyzed and judge the model and the temperature of battery component 410 exactly.
The on off state of transistor 414 can be controlled by the charging potential of electric capacity 412, and is original, do not have any electric charge in the electric capacity 412, and transistor 414 is for closing.When beginning electric capacity 412 charged, the terminal voltage of electric capacity 412, that is the voltage of node N1 still is lower than the critical voltage (threshold voltage) of transistor 414, this moment, transistor 414 was still closed.After a period of time that electric capacity 412 is charged (as after being full of electric energy), when the voltage of node N1 surpassed the critical voltage of transistor 414, then transistor 414 was opened.In addition, in other embodiments, the unlatching of transistor 414 and close and also optionally be controlled by microcontroller 440, promptly the grid of transistor 414 also can be connected with microcontroller 440.
Fig. 5 is voltage and the time relation figure of battery component when accepting to measure that illustrates according to a preferred embodiment of the present invention.Please also refer to Fig. 4 and Fig. 5, before t=0, microcontroller 440 exportable control signal Sg with high level voltage make electric capacity 412 ground connection with turn-on transistor 450, and remove the electric charge in the electric capacity.Afterwards, microcontroller 440 outputs have the control signal Sg of low level voltage to close transistor 450.
Behind the energy in removing electric capacity, reference power source 430 provides electric energy to electrode 422, and electric capacity 412 begins to charge, because the terminal voltage of electric capacity 412 still is lower than the critical voltage of transistor 415, so the time transistor 414 still close and electric current flow through resistance 413 and electric capacity 412.Analog-digital converter 441 is in the magnitude of voltage V1 of first preset time t 1 on node N2 measurement electrode 417, and is converted into digital signal S1 to carry out operational analysis.In this embodiment, because magnitude of voltage V1 can change with the product value RC of the resistance value R of the capacitance C of electric capacity 412 and resistance 413,, can judge the model of battery component so only need change the capacitance C and the resistance value R of different battery component.That is to say that different battery component has different RC values, RC is bigger, and then voltage V1 is littler, and for instance, the identical and capacitance of the resistance value R of the battery component of two kinds of models is respectively C1, C3, and C1＞C3, then V1＜V3.Therefore, by the value of Measurement and analysis voltage V1, V3, can judge the model of battery component 410 effectively.
Fig. 6 is voltage and the time relation figure of battery component when accepting to measure that illustrates according to a preferred embodiment of the present invention.Please also refer to Fig. 4 and Fig. 6, after a period of time that electric capacity 412 is charged, when the voltage of node N1 surpassed the critical voltage of transistor 414, then transistor was opened, and this moment, electric current transferred the thermistor 415 of flowing through to.At this moment, analog-digital converter 441 is in the magnitude of voltage V2 of second preset time t 2 (this moment electric capacity 412 be in stable state) on node N2 measurement electrode 417, and is converted into digital signal S2 to carry out operational analysis.In this embodiment, owing to magnitude of voltage V2 can change with the resistance value of thermistor 415, and the resistance value of thermistor 415 is the temperature decisions according to this battery component 410, so under different temperature, magnitude of voltage V2 is also different.Die, can judge the model of battery component 410 by Measurement and analysis magnitude of voltage V2 effectively.
As shown in Figure 6, analog-digital converter 441 is magnitude of voltage V1 and the V2 on first preset time t 1 and second preset time t, 2 collecting electrodes 417 in regular turn, magnitude of voltage V1 can be used to judge the model of battery component 410, and magnitude of voltage V2 can be used to judge the temperature of battery component 410.
Be noted that, thermistor 415 can not need to be connected in jointly electrode 417 with resistance 413, have in the technical field under the present invention and know that usually the knowledgeable can adopt a plurality of electrodes connecting thermistor 415 and resistance 413 respectively, and still do not break away from spirit of the present invention and scope.
By the invention described above preferred embodiment as can be known, use charging assembly of the present invention, can be under the situation that does not increase electrode number, by changing the electrical parameter of energy storage component and current limliting assembly, can effectively and exactly judge the model and the temperature of battery component, and determine its charged state.So charging assembly of the present invention not only can solve prior art problems, has the advantage that reduces cost with the accuracy that improves the charged state judgement simultaneously.
Though the present invention discloses as above with a preferred embodiment; yet it is not in order to limit the present invention; anyly have the knack of this operator; without departing from the spirit and scope of the present invention; when doing various changes that are equal to or replacement;, so protection scope of the present invention is when looking accompanying being as the criterion that the application's claim scope defined.
Claims (10)
1. battery component, the interface that is connected with a portable electronic device has at least one the first terminal, one second terminal and one the 3rd terminal, and this battery component comprises:
One battery, its both positive and negative polarity couple this second terminal and this first terminal respectively;
One identification circuit comprises:
One energy storage component, an end couples this first terminal; And
One current limliting assembly is serially connected with between this energy storage component and the 3rd terminal, and wherein this energy storage component is an electric capacity, and this current limliting assembly then is a resistance; And
One temperature perception circuit comprises:
One switch, an end couples this first terminal; And
One temperature sense assembly is serially connected with between this switch and the 3rd terminal, and this temperature sense assembly changes its resistance value according to temperature,
Wherein in a period of time that this electric capacity begins to charge, measure the magnitude of voltage of the 3rd terminal, to determine the type of this battery component.
2. battery component according to claim 1 is characterized in that this switch open is when this energy storage component charges to a critical voltage.
3. battery component according to claim 1 is characterized in that the control end in order to the open and close of controlling this switch is coupled to the other end of this energy storage component.
4. battery component according to claim 1 is characterized in that this temperature sense assembly is a thermistor.
5. electronic installation comprises:
One reference power source;
One battery component comprises:
One battery, its both positive and negative polarity connect one second terminal and a first terminal respectively;
One identification circuit comprises:
One energy storage component, an end couples this first terminal; And
One current limliting assembly is serially connected with between this energy storage component and one the 3rd terminal; And
One temperature perception circuit comprises:
One switch, an end couples this first terminal; And
One temperature sense assembly is serially connected with between this switch and the 3rd terminal, and this temperature sense assembly changes its resistance value according to temperature; And
One charged state control device,
Wherein, the charging that this energy storage component was produced when this charged state control device charged to this energy storage component through this current limliting assembly by measuring an electric current is linear, judgement is in order to discern a model of this battery component, and when this switch open, this charged state control device is judged the temperature of this battery component by measuring the terminal voltage that is produced when this electric current is flowed through this temperature sense assembly.
6. electronic installation according to claim 5 is characterized in that this switch open is when this energy storage component charges to a critical voltage.
7. electronic installation according to claim 5 is characterized in that the control end in order to the open and close of controlling this switch is coupled to the other end of this energy storage component.
8. electronic installation according to claim 5 is characterized in that this first terminal ground connection, and this second terminal provides in order to the electric energy with this battery and gives this reference power source, and this reference power source couples the 3rd terminal so that this electric current to be provided.
9. electronic installation according to claim 5 is characterized in that this energy storage component is that an electric capacity, this current limliting assembly are a resistance and should temperature sense assembly were a thermistor.
10. a model and a method of temperature of measuring battery component comprises the following steps:
Make an electric current by the current limliting assembly energy storage component that charges;
One charging of measuring this energy storage component in one first Preset Time is linear, judges the model of this battery component according to this;
Make this electric current by a temperature sense assembly; And
Measure the terminal voltage of this temperature sense assembly in one second Preset Time, judge the temperature of this battery component according to this.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100031004A CN101488589B (en) | 2008-01-15 | 2008-01-15 | Battery assembly and charging state measurement method |
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| CN2008100031004A CN101488589B (en) | 2008-01-15 | 2008-01-15 | Battery assembly and charging state measurement method |
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| CN101488589A CN101488589A (en) | 2009-07-22 |
| CN101488589B true CN101488589B (en) | 2011-03-09 |
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| CN2008100031004A Expired - Fee Related CN101488589B (en) | 2008-01-15 | 2008-01-15 | Battery assembly and charging state measurement method |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183315A (en) * | 2011-02-28 | 2011-09-14 | 惠州Tcl移动通信有限公司 | Circuit and method for detecting identity (ID) and temperature of battery by using common detection pin |
| CN102360065B (en) * | 2011-08-17 | 2014-10-29 | 惠州Tcl移动通信有限公司 | Battery detection method and device |
| CN103427120B (en) * | 2012-05-22 | 2016-08-17 | 南京中兴新软件有限责任公司 | A kind of electronic equipment identifying different capabilities battery and battery thereof |
| CN103675689A (en) * | 2012-09-24 | 2014-03-26 | 联想(北京)有限公司 | Battery detection method and device |
| CN103197258B (en) * | 2013-04-09 | 2015-12-02 | 青岛海信移动通信技术股份有限公司 | A kind of battery type detection method and mobile terminal |
| CN103217650B (en) * | 2013-04-09 | 2015-10-21 | 青岛海信移动通信技术股份有限公司 | Battery type detection method and the mobile terminal adopting the method to design |
| CN104638313B (en) * | 2013-11-15 | 2017-02-08 | 维沃移动通信有限公司 | Battery recognition method for mobile handheld device |
| CN104362406B (en) * | 2014-10-24 | 2017-03-01 | 努比亚技术有限公司 | The charge control method of mobile terminal and mobile terminal |
| CN105676145A (en) * | 2016-04-01 | 2016-06-15 | 福建联迪商用设备有限公司 | Method and device for detecting temperature and ID of battery |
| KR102565348B1 (en) * | 2017-12-18 | 2023-08-16 | 현대자동차주식회사 | Charging system with sensor diagnosis function and method for diagnosing sensor applied to the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277746A (en) * | 1997-10-28 | 2000-12-20 | 艾利森电话股份有限公司 | An identification arrangement and method |
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2008
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277746A (en) * | 1997-10-28 | 2000-12-20 | 艾利森电话股份有限公司 | An identification arrangement and method |
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| CN101488589A (en) | 2009-07-22 |
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