CN108370165A - Power supply adaptor, mobile terminal and charging system - Google Patents
Power supply adaptor, mobile terminal and charging system Download PDFInfo
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- CN108370165A CN108370165A CN201680000892.2A CN201680000892A CN108370165A CN 108370165 A CN108370165 A CN 108370165A CN 201680000892 A CN201680000892 A CN 201680000892A CN 108370165 A CN108370165 A CN 108370165A
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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
Abstract
Present disclose provides a kind of power supply adaptor, mobile terminal and charging systems, are related to charging technique field, and the power supply adaptor includes：Voltage conversion chip, adapter managing chip, test resistance and adaptor interface；Voltage conversion chip, for transmitting DC voltage to connected mobile terminal by adaptor interface；Test resistance is arranged between voltage conversion chip and adaptor interface, and is electrical connected respectively with voltage conversion chip and adaptor interface；Adapter managing chip is electrical connected with voltage conversion chip and test resistance respectively, for according to the current controlled voltage conversion chip state in which for flowing through test resistance.The embodiment of the present disclosure realizes the automation detection and control to power supply adaptor working condition, it is ensured that power supply adaptor only works in normal state, and it is security risk caused by mobile terminal charging to avoid power supply adaptor under abnormality.
Description
This disclosure relates to charging technique field, in particular to a kind of power supply adaptor, mobile terminal and charging system.
Power supply adaptor is a kind of power converter that alternating voltage is converted to DC voltage, commonly used in charging for the battery inside mobile terminal.
When being charged using power supply adaptor to mobile terminal, the 220V AC voltage of input is converted to 5V DC voltage by the voltage conversion chip inside power supply adaptor, and DC voltage is transmitted to by the battery management chip inside mobile terminal by charging cable, it is charged by battery management chip by internal battery charger for battery.Since power supply adaptor works in a high voltage state, the safety of power supply adaptor becomes particularly important.
Summary of the invention
Present disclose provides a kind of power supply adaptor, mobile terminal and charging systems.The technical solution is as follows:
In a first aspect, providing a kind of power supply adaptor, which includes:
Voltage conversion chip, adapter managing chip, test resistance and adaptor interface；
Voltage conversion chip, for transmitting DC voltage to connected mobile terminal by adaptor interface；
Test resistance setting is electrical connected between voltage conversion chip and adaptor interface, and respectively with voltage conversion chip and adaptor interface；
Adapter managing chip is electrical connected with voltage conversion chip and test resistance respectively, for according to the current controlled voltage conversion chip state in which for flowing through test resistance.
Optionally, adapter managing chip, for when the electric current for flowing through test resistance is less than predetermined current threshold, control voltage conversion chip to enter working condition；
Adapter managing chip is also used to when the electric current for flowing through test resistance is greater than predetermined current threshold, and control voltage conversion chip enters halted state.
Optionally, adapter managing chip adds pin D with the first data of adaptor interface respectively1+ (Data+,
Data add) and the first data subtract pin D1(Data-, data subtract) is electrical connected；
Adapter managing chip, for passing through D1+ and D1The self-checking command that connected mobile terminal is sent is received, includes test voltage in self-checking command；Voltage conversion chip, which is controlled, according to test voltage adjusts output voltage；
Adapter managing chip is also used to pass through D when the electric current for flowing through test resistance is less than predetermined current threshold1+ and D1The first instruction is sent to mobile terminal, the first instruction is used to indicate mobile terminal and is in working condition battery charger by high-impedance state switching；
Adapter managing chip is also used to pass through D when the electric current for flowing through test resistance is greater than predetermined current threshold1+ and D1The second instruction is sent to mobile terminal, the second instruction is used to indicate mobile terminal and battery charger is switched to halted state by high-impedance state；
Wherein, predetermined current threshold and test voltage proportional.
Optionally, the first connecting pin of the voltage output end of voltage conversion chip and test resistance is electrical connected；
The second connection end of test resistance and the first voltage bus pin VBus of adaptor interface1(Voltage Bus, voltage bus) is electrical connected；
The ground terminal of voltage conversion chip and the first grounding pin GND of adaptor interface1(Ground, ground connection) is electrical connected；
Voltage conversion chip, for passing through VBus1DC voltage is transmitted to connected mobile terminal.
Optionally, adapter managing chip is electrical connected with the first connecting pin of test resistance and second connection end respectively；
Adapter managing chip, for obtaining the voltage at test resistance both ends；The electric current of test resistance is flowed through according to the impedance computation of the voltage at test resistance both ends and test resistance.
Second aspect provides a kind of mobile terminal, which includes: hardware charging interface, battery management chip and battery；
Hardware charging interface, for being connected by charging cable with power supply adaptor as described in relation to the first aspect；
Battery management chip is electrical connected with hardware charging interface, for receiving the DC voltage of power supply adaptor transmission by hardware charging interface；
Battery management chip is electrical connected with battery, for being battery charging according to the battery charger inside DC voltage control.
Optionally, battery management chip adds pin D with the second data of hardware charging interface respectively2+ and the second data subtract pin D2It is electrical connected；
Battery management chip, for when establishing connection with power supply adaptor, control battery charger to be in high-impedance state；
Battery management chip is also used to pass through D2+ and D2Self-checking command is sent to the adapter managing chip of power supply adaptor.
Optionally, battery management chip is also used to pass through D2+ and D2Receive the first instruction that adapter managing chip is sent；It is in working condition according to the first instruction control battery charger by high-impedance state switching；
Battery management chip is also used to pass through D2+ and D2Receive the second instruction that adapter managing chip is sent；Halted state is switched to by high-impedance state according to the second instruction control battery charger.
Optionally, battery management chip is electrically connected with the processor；
Battery management chip is also used to send the first instruction or the second instruction to processor；
Processor executes predetermined operation for controlling predetermined component according to the first instruction or the second instruction, and predetermined component includes at least one of display screen or indicator light, and predetermined operation is used to indicate battery charger state in which.
Optionally, the second voltage bus pin VBus of hardware charging interface2It is electrical connected with the voltage input end of battery management chip；
Second grounding pin GND of hardware charging interface2It is electrical connected with the ground terminal of battery management chip；
Battery management chip, for passing through VBus2Receive the DC voltage of power supply adaptor transmission.
The third aspect provides a kind of charging system, which includes: power supply adaptor and mobile terminal；
Power supply adaptor includes power supply adaptor as described in relation to the first aspect；
Mobile terminal includes the mobile terminal as described in second aspect；
It is connected between the adaptor interface of power supply adaptor and the hardware charging interface of mobile terminal by charging cable.
The technical solution that the embodiment of the present disclosure provides can include the following benefits:
By the way that test resistance is arranged between the voltage conversion chip and adaptor interface of power supply adaptor, and utilize the self-detection mechanism of power supply adaptor, before being charged using power supply adaptor to mobile terminal, the electric current for flowing through the test resistance is obtained using adapter managing chip, to detect whether power supply adaptor works normally according to size of current, realize the automation detection and control to power supply adaptor working condition, ensure that power supply adaptor only works in normal state, it is security risk brought by mobile terminal charging that power supply adaptor, which is avoided, under abnormality.
It should be understood that above general description and following detailed description is only illustrative, do not limit the disclosure.
The drawings herein are incorporated into the specification and forms part of this specification, and show ans embodiment consistent with the present disclosure, and and consistent with the instructions for explaining the principles of this disclosure.
Fig. 1 shows the structural block diagram of the charging system of exemplary embodiment offer；
Fig. 2 shows the structural block diagrams for the charging system that another exemplary embodiment provides；
Fig. 3 shows the structural block diagram for the charging system that another exemplary embodiment provides；
Fig. 4 A and Fig. 4 B are the interface schematic diagrams of mobile terminal display reminding information.
Here illustrative examples will be illustrated in detail, the example is illustrated in the accompanying drawings.In the following description when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Embodiment described in property embodiment illustrated below does not represent all implementations consistent with this disclosure.On the contrary, they are only the examples of the device and method consistent with some aspects as detailed in the attached claim, the disclosure.
Referenced herein " multiple " refer to two or more."and/or" describes the incidence relation of affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Symbol "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
The power supply adaptor that the relevant technologies provide does not have self-checking function, even if user still can be used abnormal power supply adaptor and charge to mobile terminal when power supply adaptor occurs abnormal.Since power supply adaptor works in a high voltage state, carrying out charging using abnormal power supply adaptor, there are great security risks；And damage can be generated to the battery of mobile terminal by carrying out charging using abnormal power supply adaptor, and the serious battery that will lead to scraps even mobile terminal fault.
And the power supply adaptor that each embodiment of the disclosure provides has self-checking function, before being charged using the power supply adaptor to mobile terminal, adapter managing chip inside power supply adaptor can be detected automatically, and the voltage conversion chip controlled inside power supply adaptor when detecting that power supply adaptor is normal works normally, and charges for mobile terminal；Voltage conversion chip is controlled when detecting power supply adaptor exception to stop working, and avoids bring security risk under abnormal work.It is illustrated below using schematical embodiment.
Fig. 1 shows the structural block diagram of the charging system of exemplary embodiment offer.It include power supply adaptor 110 and mobile terminal 120 in the charging system.
As shown in Figure 1, power supply adaptor 110 includes voltage conversion chip 111, adapter managing chip 112, test resistance 113 and adaptor interface 114；Mobile terminal 120 includes hardware charging interface 121, battery management chip 122 and battery 123, and is connected between the adaptor interface 114 of power supply adaptor 110 and the hardware charging interface 121 of mobile terminal 120 by charging cable 130.
Optionally, charging cable 130 and power supply adaptor 110 use integral structure, or, charging cable 130 and power supply adaptor 110 use separable structure.When charging cable 130 and power supply adaptor 110 are using separable structure, which only has charge function or is provided simultaneously with charging and data-transformation facility.
Optionally, charging cable 130 can be Lightning (lightning) data line, USB (Universal Serial Bus, universal serial bus) 2.0 data lines, 3.0 data line of USB or Type C data line, accordingly, adaptor interface 114 and hardware charging interface 121 can be USB interface or Lightning interface etc., and the present embodiment is defined not to this.
Core electron element of the voltage conversion chip 111 as power supply adaptor 110, for externally input alternating voltage to be converted to the DC voltage to charge to mobile terminal.For example, the voltage conversion chip 111 is used to be converted to the alternating voltage of 220V 5 to 9V DC voltage.
As shown in Figure 1, test resistance 113 is arranged between voltage conversion chip 111 and adaptor interface 114, and the both ends of test resistance 113 are electrical connected with voltage conversion chip 111 and adaptor interface 114 respectively, i.e., voltage conversion chip 111 is electrical connected with adaptor interface 114 by test resistance 113.
Wherein, one end of test resistance 113 is connected with the voltage output end of voltage conversion chip 111, the other end of test resistance 113 is connected with the voltage output end of adaptor interface 114, so that being transmitted to adaptor interface 114 via test resistance 113 from the DC voltage that voltage conversion chip 111 flows out.
Adapter managing chip 112 realizes the core electron element of self-checking function as power supply adaptor, has the functions such as voltage acquisition and control voltage conversion chip.Specifically, adapter managing chip 112 is electrical connected with voltage conversion chip 111 and test resistance 113 respectively, for calculating the electric current for flowing through test resistance 113, and whether according to the size of current determine power supply adaptor normal, to further control 111 state in which of voltage conversion chip.Wherein, 111 state in which of voltage conversion chip includes working condition and halted state, and under working condition, voltage conversion chip 111 exports after the alternating voltage of input is converted to DC voltage；And under halted state, voltage conversion chip 111 then stops converting alternating voltage, avoids carrying out voltage conversion bring security risk under power supply adaptor abnormality.
As shown in Figure 1, the both ends of adapter managing chip 112 are electrical with the both ends of test resistance 113 respectively
It is connected, adapter managing chip 112 is used for the voltage at 113 both ends of collecting test resistance, and obtains flowing through the electric current of test resistance 113 according to the impedance computation of the voltage and test resistance 113 itself.Further, adapter managing chip 112 is according to the current controlled voltage conversion chip 111 being calculated is in running order or halted state.
As shown in Figure 1, in mobile terminal 120, hardware charging interface 121 is electrical connected with battery management chip 122, when the voltage conversion chip 111 in power supply adaptor 110 is in running order, mobile terminal 120 receives the DC voltage that power supply adaptor 110 transmits by hardware charging interface 121, and provides the DC voltage to battery management chip 122.Correspondingly, battery management chip 122 is that connected battery 123 charges according to the battery charger (not using in figure) inside DC voltage control.
When power supply adaptor 110 is deposited when abnormal, and the control of adapter managing chip 112 voltage conversion chip 111 is in halted state, stop transmitting DC voltage to mobile terminal 120, correspondingly, battery management chip 122 will be unable to charge the battery.
In summary, in the present embodiment, by the way that test resistance is arranged between the voltage conversion chip and adaptor interface of power supply adaptor, and utilize the self-detection mechanism of power supply adaptor, before being charged using power supply adaptor to mobile terminal, the electric current for flowing through the test resistance is obtained using adapter managing chip, to detect whether power supply adaptor works normally according to size of current, realize the automation detection and control to power supply adaptor working condition, ensure that power supply adaptor only works in normal state, it is security risk brought by mobile terminal charging that power supply adaptor, which is avoided, under abnormality.
On the basis of charging system shown in Fig. 1, as shown in Fig. 2, voltage conversion chip 111 includes voltage output end 111a and ground terminal 111b, test resistance 113 includes the first connecting pin 113a and second connection end 113b, and adaptor interface 114 includes VBus1、D1+、D1And GND1。
Wherein, the voltage output end 111a of voltage conversion chip 111 and the first connecting pin 113a of test resistance 113 are electrical connected, the second connection end 113b of test resistance 113 and the VBus of adaptor interface 1141It is electrical connected；Adapter managing chip 112 is electrical connected with the first connecting pin 113a and second connection end 113b of test resistance 113 respectively；The ground terminal 111b of the voltage conversion chip 111 and GND of adaptor interface 1141It is electrical connected.
Correspondingly, being correspondingly arranged on VBus on the hardware charging interface 121 of mobile terminal 1202、D2+、D2And GND2, and battery management chip 122 respectively with VBus2、D2+、D2And GND2It is electrical connected.
Wherein, VBus1And VBus2It is used for transmission DC voltage, D1+、D1And D2+、D2Then it is used for transmission data or signal.
In charging system shown in Fig. 2, when 110 external power supply (alternating voltage) of power supply adaptor, and the battery management chip 122 in mobile terminal 120 detects mobile terminal 120 and when power supply adaptor 110 establishes connection, battery management chip 122 controls internal battery charger and is in high-impedance state, and passes through the D of hardware charging interface 1212+ and D2Self-checking command is sent to adaptor interface 114, indicator power adapter 110 carries out self-test.
Wherein, under high-impedance state, battery charger is equivalent to the very big resistance of resistance value, correspondingly, the electric current for flowing through battery charger is smaller, battery charger will be unable to charge for battery 123 at this time.
Optionally, include also test voltage in the self-checking command, be used to indicate voltage conversion chip 111 and adjust by output voltage to the test voltage, and carry out self-test under the test voltage.Wherein, which can be the charging voltage of mobile terminal.
Correspondingly, adapter managing chip 112 passes through the D of adaptor interface 1141+ and D1The self-checking command is received, to export constant test voltage according to the connected voltage conversion chip 111 of self-checking command control.
In process of self-test, adapter managing chip 112 obtains the voltage of 113 both ends of test resistance (the first connecting pin 113a and second connection end 113b) respectively, and the electric current of test resistance 113 is flowed through according to the voltage at 113 both ends of test resistance and the impedance computation of test resistance 113.
For example, the voltage that adapter managing chip gets the first connecting pin is V1, the voltage of second connection end is V2, and the impedance of test resistance is R, then flows through the electric current I=(V of test resistance1-V2)/R。
Optionally, in order to improve the accuracy of self-test, adapter managing chip can calculate multiple groups electric current, and the average current value of multiple groups electric current is determined as to flow through the electric current of test resistance.
After the electric current for flowing through test resistance 113 is calculated, adapter managing chip 112 detects whether the electric current is less than predetermined current threshold, when the electric current for flowing through test resistance 112 is less than predetermined current threshold, it is normal that adapter managing chip 112 determines power supply adaptor 110, and controls voltage conversion chip 111 into working condition；
When the electric current for flowing through test resistance 113 is greater than predetermined current threshold, it is abnormal that adapter managing chip 112 determines power supply adaptor 110, and controls voltage conversion chip 111 into halted state.
It should be noted that, the output voltage proportional of the predetermined current threshold and voltage conversion chip 111 is (since output voltage is adjusted according to the test voltage in self-checking command, therefore predetermined current threshold also with test voltage proportional), i.e. output voltage is bigger, predetermined current threshold is bigger, output voltage is smaller, and predetermined current threshold is smaller.
In the present embodiment, power supply adaptor is passed through by above-mentioned self-detection mechanism when detecting the presence of abnormal
Adapter management chip controls voltage conversion chip enters halted state, avoids voltage conversion chip abnormal work bring security risk under high pressure, guarantees the safety of power supply adaptor.
In order to enable mobile terminal to be charged automatically according to the state of power supply adaptor or stop charging, in charging system shown in Fig. 2, after adapter managing chip 112 determines the state of power supply adaptor, pass through D1+ and D1Corresponding instruction is sent to mobile terminal 120, instruction mobile terminal 120 is charged or stops charging.
Optionally, when the electric current for flowing through test resistance 113 is less than predetermined current threshold, adapter managing chip 112 passes through D1+ and D1The first instruction is sent to mobile terminal 120, which is used to indicate mobile terminal 120 and is in working condition battery charger by high-impedance state switching.
When the electric current for flowing through test resistance 113 is greater than predetermined current threshold, adapter managing chip 112 passes through D1+ and D1The second instruction is sent to mobile terminal 120, which is used to indicate mobile terminal 120 and battery charger is switched to halted state by high-impedance state.
Wherein, under working condition, battery charger is battery charging according to the DC voltage of input；Under halted state, battery charger stops being that battery charges.
Correspondingly, as shown in Fig. 2, battery management chip 122 passes through the D of hardware charging interface 1212+ and D2After receiving the first instruction, it is in working condition according to the first instruction control battery charger by high-impedance state switching；
Battery management chip 122 passes through the D of hardware charging interface 1212+ and D2After receiving the second instruction, halted state is switched to by high-impedance state according to the second instruction control battery charger.
In the present embodiment, after adapter managing chip determines the state of power supply adaptor, corresponding instruction is sent to mobile terminal by adaptor interface, so that the battery management chip in mobile terminal is that battery charges or stopping is charged automatically according to the battery charger inside instruction control, avoids battery charger from being in high-impedance state for a long time and lead to not for battery charging.
In order to allow users to know that power supply adaptor is abnormal in time, to be replaced to abnormal power supply adaptor, on the basis of charging system shown in Fig. 2, as shown in figure 3, battery management chip 122 is also electrical connected with processor 124 in mobile terminal 120.
After battery management chip 122 receives the first instruction or the second instruction of the transmission of power supply adaptor 110, by this first instruct or second instruction be sent to connected processor 124, after processor 124 receives the instruction, the predetermined component (showing in figure) in mobile terminal 120, which is controlled, according to the instruction executes predetermined operation
To prompt, user's power supply adaptor is normal or power supply adaptor is abnormal.
Optionally, which is the display screen or indicator light being electrical connected in processor, shows programmed alarm information correspondingly, the predetermined operation can be by display screen or shows predetermined color by indicator light.
In a kind of possible embodiment, as shown in Figure 4 A, when being charged using power supply adaptor 41 for mobile terminal 42, after the processor in mobile terminal 42 receives the first instruction of battery management chip transmission, control display screen 43, which is shown, charges normal prompt information 44；As shown in Figure 4 B, when being charged using power supply adaptor 41 for mobile terminal 42, after the processor in mobile terminal 42 receives the second instruction of battery management chip transmission, control display screen 43, which is shown, stops charge prompting information 45.
In the present embodiment, the instruction that processor is sent by receiving battery management chip, and predetermined component is controlled according to the instruction and executes predetermined operation, so that user be prompted to replace in time to abnormal power supply adaptor, avoid security risk brought by abnormal power supply adaptor.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to other embodiments of the disclosure.This application is intended to cover any variations, uses, or adaptations of the disclosure, these variations, uses, or adaptations follow the general principles of this disclosure and including generally known common sense and conventional technological means in the art, which is not disclosed in this disclosure.Description and embodiments are considered only as schematically, and the true scope and spirit of the disclosure are indicated by the following claims.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (11)
- A kind of power supply adaptor, which is characterized in that the power supply adaptor includes: voltage conversion chip, adapter managing chip, test resistance and adaptor interface；The voltage conversion chip, for transmitting DC voltage to connected mobile terminal by the adaptor interface；The test resistance setting is electrical connected between the voltage conversion chip and the adaptor interface, and respectively with the voltage conversion chip and the adaptor interface；The adapter managing chip is electrical connected with the voltage conversion chip and the test resistance respectively, for the voltage conversion chip state in which according to the current control for flowing through the test resistance.
- Power supply adaptor according to claim 1, which is characterized in thatThe adapter managing chip, for controlling the voltage conversion chip and entering working condition when the electric current for flowing through the test resistance is less than predetermined current threshold；The adapter managing chip is also used to control the voltage conversion chip when the electric current for flowing through the test resistance is greater than the predetermined current threshold and enter halted state.
- Power supply adaptor according to claim 2, which is characterized in that the adapter managing chip adds pin D with the first data of the adaptor interface respectively1+ and the first data subtract pin D1It is electrical connected；The adapter managing chip, for passing through the D1+ and the D1The self-checking command that connected mobile terminal is sent is received, includes test voltage in the self-checking command；The voltage conversion chip, which is controlled, according to the test voltage adjusts output voltage；The adapter managing chip is also used to pass through the D when the electric current for flowing through the test resistance is less than the predetermined current threshold1+ and the D1- Xiang Suoshu mobile terminal sends the first instruction, and first instruction is used to indicate the mobile terminal and is in working condition battery charger by high-impedance state switching；The adapter managing chip is also used to pass through the D when the electric current for flowing through the test resistance is greater than the predetermined current threshold1+ and the D1- Xiang Suoshu mobile terminal sends the second instruction, and second instruction is used to indicate the mobile terminal and battery charger is switched to halted state by the high-impedance state；Wherein, the predetermined current threshold and the test voltage proportional.
- Power supply adaptor according to any one of claims 1 to 3, which is characterized in thatThe voltage output end of the voltage conversion chip and the first connecting pin of the test resistance are electrical connected；The first voltage bus pin VBus of the second connection end of the test resistance and the adaptor interface1It is electrical connected；First grounding pin GND of the ground terminal of the voltage conversion chip and the adaptor interface1It is electrical connected；The voltage conversion chip, for passing through the VBus1DC voltage is transmitted to connected mobile terminal.
- Power supply adaptor according to any one of claims 1 to 3, which is characterized in that the adapter managing chip is electrical connected with the first connecting pin of the test resistance and second connection end respectively；The adapter managing chip, for obtaining the voltage at the test resistance both ends；The electric current of the test resistance is flowed through according to the impedance computation of the voltage at the test resistance both ends and the test resistance.
- A kind of mobile terminal, which is characterized in that the mobile terminal includes: hardware charging interface, battery management chip and battery；The hardware charging interface, for being connected by charging cable with power supply adaptor as claimed in claim 1 to 5；The battery management chip is electrical connected with the hardware charging interface, for receiving the DC voltage of the power supply adaptor transmission by the hardware charging interface；The battery management chip is electrical connected with the battery, for being battery charging according to the battery charger inside the DC voltage control.
- Mobile terminal according to claim 6, which is characterized in that the mobile terminal is connected by charging cable with power supply adaptor as claimed in claim 3；Second data of the battery management chip respectively with the hardware charging interface add pin D2+ and the second data subtract pin D2It is electrical connected；The battery management chip is in the high-impedance state for when establishing connection with the power supply adaptor, controlling the battery charger；The battery management chip is also used to through the D2+ and the D2The adapter managing chip of-Xiang Suoshu power supply adaptor sends the self-checking command.
- Mobile terminal according to claim 7, which is characterized in thatThe battery management chip is also used to through the D2+ and the D2Receive first instruction that the adapter managing chip is sent；The battery charger is controlled according to first instruction, and the working condition is switched to by the high-impedance state；The battery management chip is also used to through the D2+ and the D2Receive second instruction that the adapter managing chip is sent；The battery charger is controlled according to second instruction, and the halted state is switched to by the high-impedance state.
- Mobile terminal according to claim 8, which is characterized in that the battery management chip is electrically connected with the processor；The battery management chip is also used to send first instruction or second instruction to the processor；The processor, for controlling predetermined component according to first instruction or second instruction and executing predetermined operation, the predetermined component includes at least one of display screen or indicator light, and the predetermined operation is used to indicate the battery charger state in which.
- According to any mobile terminal of claim 6 to 9, which is characterized in thatThe second voltage bus pin VBus of the hardware charging interface2It is electrical connected with the voltage input end of the battery management chip；Second grounding pin GND of the hardware charging interface2It is electrical connected with the ground terminal of the battery management chip；The battery management chip, for passing through the VBus2Receive the DC voltage of the power supply adaptor transmission.
- A kind of charging system, which is characterized in that the charging system includes: power supply adaptor and mobile terminal；The power supply adaptor includes power supply adaptor as claimed in claim 1 to 5；The mobile terminal includes the mobile terminal as described in claim 6 to 10 is any；It is connected between the adaptor interface of the power supply adaptor and the hardware charging interface of the mobile terminal by charging cable.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/099613 WO2018053723A1 (en) | 2016-09-21 | 2016-09-21 | Power adapter, mobile terminal, and charging system |
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| CN108370165A true CN108370165A (en) | 2018-08-03 |
| CN108370165B CN108370165B (en) | 2021-09-28 |
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| CN110602144A (en) * | 2019-09-30 | 2019-12-20 | 广东易百珑智能科技有限公司 | Signal adapter and control method of terminal device |
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| CN105098900A (en) * | 2015-08-05 | 2015-11-25 | 青岛海信移动通信技术股份有限公司 | Mobile terminal, direct charging power adapter and charging method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108370165B (en) | 2021-09-28 |
| WO2018053723A1 (en) | 2018-03-29 |
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