CN106655415B - Intelligent universal charging identification and control device based on USB interface - Google Patents
Intelligent universal charging identification and control device based on USB interface Download PDFInfo
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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
- H02J7/00036—Charger exchanging data with battery
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- 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
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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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
- H02J7/00045—Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
Abstract
The invention discloses an intelligent universal charging identification method based on a USB, which is realized by the following technical scheme: the intelligent universal charging identification method based on the USB is operated in a microprocessor and comprises the following steps: A. and adjusting and setting parameters and threshold values of the voltage and the current for identification and communication signal rules according to the charging identification protocol so as to carry out correct charging identification. B. Detecting the access of the equipment, and judging the communication mode of the equipment and the charging equipment; C. and communicating with the equipment according to a communication mode, detecting the voltage and the current, and charging and identifying the equipment according to the obtained voltage, current or pulse communication signal information. D. And correspondingly adjusting the output voltage and the output current according to the charging identification result to charge the equipment.
Description
Technical Field
The invention relates to the field of equipment charging identification, in particular to an intelligent universal charging identification method based on a USB.
Background
The charging identification is a technology for mutually identifying a charging device and a charged device through communication and detection methods, and the basic purpose is to ensure the safety and reliability of charging and the matching of charging parameters so as to establish safe and efficient charging between the identified charging port and the charged port. Particularly, in the fast charging schemes of various mobile devices which are gradually popular at present, because fast charging is realized by means of large current, high voltage and the like, higher requirements are provided for the safety and reliability of charging, all the fast charging schemes are provided with corresponding charging identification protocols to ensure the safety of charging and the matching of charging parameters, and the fast charging connection with safety, reliability and parameter matching specified by the protocols can be established between charging ports which are identified mutually; otherwise, the charging will proceed in a conventional slow manner.
However, the existing devices are of many types, and different manufacturers adopt different identification methods and charging technologies, which causes a problem of compatibility of device charging, that is, a charging device in charge of charging the device, especially a charging device of a third party manufacturer, cannot safely and efficiently charge the device due to the fact that the charging device cannot be identified with a charged device of a specific manufacturer, and may even cause that the charging device cannot be charged. Alternatively, charging devices and charged devices manufactured by different manufacturers are incompatible. Because the equipment can only be charged safely and efficiently by using the original charging equipment of the manufacturer, the user of the equipment is invisibly consumed by the manufacturer of the equipment in a 'kidnapping' way.
The existing charging devices are increased, the charging devices are mostly charged by adopting a USB interface, and after the charging devices are connected, how to identify the devices and charge the devices according to the current and voltage magnitude specified by the charging protocol is a matter worth researching.
Disclosure of Invention
The invention provides an intelligent universal charging identification method based on a USB (universal serial bus) to solve the technical problems.
The invention is realized by the following technical scheme:
the intelligent universal charging identification method based on the USB is operated in a microprocessor and comprises the following steps:
A. adjusting and setting parameters and threshold values of voltage and current for identification and communication signal rules according to a charging identification protocol so as to carry out correct charging identification;
B. detecting the access of the equipment, and judging the communication mode of the equipment and the charging equipment;
C. and communicating with the equipment according to a communication mode, detecting the voltage and the current, and charging and identifying the equipment according to the obtained voltage, current or pulse communication signal information.
D. And correspondingly adjusting the output voltage and the output current according to the charging identification result to charge the equipment.
The method of the scheme is operated in the microprocessor, so that the specific identification method of the scheme can be synchronously upgraded according to protocol updating, and compared with the existing mode of directly solidifying a software method into a chip, the method is more flexible and has better economic benefit. According to the communication mode and according to the voltage, the current or the pulse signal, the equipment is identified and the output voltage of the charging equipment is adjusted to the voltage required by the equipment, so that the efficient and safe charging of the equipment is realized.
In step B, if the device and the charging device communicate with each other on Vbus, the method for identifying the device includes:
b-1-1, capturing a current signal on Vbus;
b-1-2, analyzing the current signal, judging whether the charging identification of the access equipment is a Vbus current communication mode, if so, entering C-1, otherwise, entering B-1-1;
c-1, selecting a corresponding charging identification protocol for communication according to the analysis result of the current signal, acquiring parameter information required by equipment charging, and entering D and C-8.
D. And correspondingly adjusting the output voltage and the output current according to the charging identification result to charge the equipment.
If the device communicates with the charging device on the DP and the DM, the method for identifying the device comprises the following steps:
b-2-1, connecting DP and DM, and setting voltages on DP and DM;
b-2-2, detecting the voltage on DP and DM and the Vbus current;
b-2-3, if the current is larger than the set identification threshold and the voltage between the DP and the DM does not meet the requirements of the high-pass QC protocol or the FCP protocol, entering B-3; otherwise, entering B-2-4;
b-2-4, if the high-pass QC protocol or FCP protocol requirements are met, disconnecting DP and DM, entering B-2-5, otherwise, entering B-2-1;
b-2-5, if the voltages on the DP and the DM conform to the voltage rule of high-pass QC2.0, judging that the voltage is a device supporting high-pass QC2.0, and entering C-2; otherwise, entering B-2-6;
c-2, reading voltage values on the DP and the DM, acquiring charging parameters, and entering D and C-10;
b-2-6, capturing the signal, detecting the voltage on the DP and the DM, and judging whether the device is a device supporting other charging protocols;
the B-3 specifically comprises:
b-3-1, if the current is larger than the VOOC threshold value, entering B-3-2; otherwise, entering B-3-3;
b-3-2, disconnecting DP and DM, sending signals on DP and DM, and entering C-3 if correct reply is received; if the correct reply is not received, entering B-3-3;
c-3, analyzing the reply signals received on the DP and the DM, and entering D and C-8;
b-3-3, disconnecting the charging output, setting the voltages on the DP and the DM into an apple 2.4A mode, and entering C-4;
c-4, turning on a charging output, detecting current, and entering D and C-8 if the current is larger than a set identification threshold; otherwise, entering C-5;
c-5, connecting DP and DM, and entering D and C-8.
The specific steps of the step B-2-6 are as follows:
b-2-6-1, detecting a first pulse signal on DP or/and DM;
b-2-6-2, if a pulse signal is detected on the DP, entering B-2-6-4; otherwise, entering B-2-6-3;
b-2-6-3, if the first pulse signal on the DM meets the first pulse requirement of the FCP protocol, entering C-6-1, otherwise, entering B-2-6-4;
c-6-1, initiating a signal by the equipment and receiving a feedback signal;
c-6-2, circulating the step C-6-1 for 12 times, and entering D and C-8 if the feedback signals received each time are correct and the same; otherwise, enter B-3.
B-2-6-4, if the pulse signal on the DP or DM meets the high-pass QC3.0 protocol requirement, entering C-7; otherwise, entering B-3;
c-7, resolving the pulse signals received on the DP or the DM, and entering D and C-10.
If the equipment and the charging equipment communicate on a special signal line, the equipment identification method comprises the following steps:
b-4-1, capturing the pulse signal on the special signal line;
b-4-2, if the signal exists, analyzing the pulse signal, entering C-9, otherwise, entering B-4-1;
c-9, communicating and analyzing signals according to the judgment of the B-4, and entering D and C-8 if the pulse signals are correct signals; otherwise, enter B.
C-10, reading DP and DM voltage values, if the voltage values accord with the voltage rule of high-pass QC2.0, judging that the voltage values are devices supporting high-pass QC2.0, and entering C-2; if the voltage rule accords with the high-pass QC3.0, the device is judged to be a device supporting the high-pass QC3.0, and the device enters C-7; if the two are not in accordance, entering B-2-1.
Step C-8 is a process of performing continuous communication and voltage and current detection while performing step D, and the result is fed back to the microprocessor as a basis for returning to B or performing D adjustment.
The step D also comprises the following steps: when the charging is not constant current charging, the output voltage is adjusted according to the actual charging current to realize line loss compensation.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the method identifies the equipment according to the communication mode and voltage, current or pulse signals so as to adjust the output voltage of the charging equipment to the voltage required by the equipment, thereby realizing the efficient and safe charging of the equipment.
2. The method of the invention is operated in the microprocessor, can be synchronously upgraded according to protocol updating, and is more suitable for the requirement of modern science and technology updating.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limitations of the present invention.
Example 1
The intelligent universal charging identification method based on the USB is operated in a microprocessor and comprises the following steps:
A. adjusting and setting parameters and threshold values of voltage and current for identification and communication signal rules according to a charging identification protocol so as to carry out correct charging identification;
B. detecting the access of the equipment, and judging the communication mode of the equipment and the charging equipment;
specifically, based on the identification method, the safe and efficient charging of the device can be realized, namely, the charging parameter step C and the charging execution step D can be obtained after the step B,
and C: and communicating with the equipment according to a communication mode, detecting the voltage and the current, and charging and identifying the equipment according to the obtained voltage, current or pulse communication signal information.
Step D: and correspondingly adjusting the output voltage and the output current according to the identified result to charge the intelligent equipment.
The invention classifies the equipment supporting different charging protocols according to different communication modes, then identifies the equipment according to the information such as the voltage, current or pulse signal rule obtained by communication, and further adjusts the output voltage and current of the charging equipment to the specified voltage and current of the corresponding charging protocol according to the identification result to realize the charging of the equipment.
By way of study, communication between a USB-based device and a charging device can be classified as communication over DP and DM, communication over Vbus, or communication over other signal lines, where communication over DP and DM can be classified as communication actively initiated by the device over DP and DM and communication actively initiated by the charging device over DP and DM. The charging identification principle is different according to different communication modes and different specific methods. Based on the above method, the present solution only studies the existing device identification method on the market, and it should be noted that, along with the technological updating and progress, the existing device identification method supporting the charging protocol is also within the protection scope of the present solution if the identification principle is also based on the communication mode, current or voltage for identification.
Example 2
The embodiment is explained for the device identification supporting the joint issuing protocol in the market. It communicates on Vbus, and the identification method is as follows:
b-1-1, capturing a current signal on Vbus;
b-1-2, analyzing the current signal; if the current signal is a correct signal, judging whether the charging identification of the access equipment is a Vbus current communication mode, if so, entering C-1, otherwise, entering B-1-1;
c-1, selecting a corresponding charging identification protocol for communication according to the analysis result of the current signal, acquiring parameter information required by equipment charging, and entering D and C-8;
D. and correspondingly adjusting the output voltage and the output current according to the charging identification result to charge the equipment, such as: and adjusting the voltage to 5V, 7V and 9V according to an MTK protocol, and increasing the output voltage to 0V, 0.15V, 0.2V and 0.25V according to the output current.
Step C-8 is the process of performing continuous communication and voltage and current detection while performing step D, the result of which is fed back to the microprocessor as a basis for returning to B or performing D adjustment.
Example 3
The communication between the device and the charging device is mostly performed on DP and DM except Vbus, and the specific identification method is as follows:
b-2-1, connecting DP and DM, and setting voltages on DP and DM;
b-2-2, detecting the voltage on DP and DM and the Vbus current;
b-2-3, if the current is greater than the set identification threshold value of (A), such as 700mA, and the voltage between DP and DM does not meet the requirements of the high-pass protocol or FCP protocol, namely is less than 0.3V or greater than 0.65V, the voltage is judged to be VOOC preliminarily, and then B-3 is entered; otherwise, entering B-2-4;
b-2-4, if the voltage between the DP and the DM meets the requirement of a high-pass protocol or an FCP protocol, disconnecting the DP and the DM, entering B-2-5, and otherwise, entering B-2-1;
b-2-5, if the voltages on the DP and the DM conform to the voltage rule of QC2.0, the rule is shown in the table 1, and if the rule is judged to be a device supporting high-pass QC2.0, adjusting the output voltages to 5V, 9V, 12V and 20V; otherwise, entering B-2-6;
c-2, capturing the signal, detecting the voltage on DP and DM, and determining whether it is a device supporting other charging protocols, such as: QC3.0, FCP, and adjust the output voltage to the designated voltage of the corresponding charging protocol, enter D and C-10;
through the step of C-2, the charging of the millet 4C, the millet NOTE and other mainstream mobile phone identification can be realized.
| DP(V) | DM(V) | Vbus(V) |
| 0.4～0.7 | 0.4～0.7 | 12 |
| >＝3 | 0.4～0.7 | 9 |
| >＝3 | >＝3 | 20 |
| 0.4～0.7 | 0 | 5 |
TABLE 1
The B-3 specifically comprises:
b-3-1, if the current is larger than the VOOC threshold value, namely 1A, entering B-3-2; otherwise, entering B-3-3;
b-3-2, disconnecting DP and DM, sending signals on DP and DM, if correct reply is received, judging that the reply is VOOC, and entering C-3; if the correct reply is not received, entering B-3-3;
b-3, analyzing the reply signals received on the DP and the DM, and entering D and C-8;
b-3-3, disconnecting the charging output, setting the voltages on the DP and the DM at the threshold of the apple, namely 2.6V to 2.7V, setting the voltage as the charging mode of the apple, and entering C-4; c-4, turning on a charging output, detecting the current, and entering D and C-8 if the current is less than the set identification threshold value of (A), namely 700 mA; otherwise, go to C-5.
C-5, connecting DP and DM, and entering D and C-8.
The specific steps of the step B-2-6 are as follows:
b-2-6-1, detecting a first pulse signal on DP or/and DM;
b-2-6-2, if a pulse signal is detected on the DP, entering B-2-6-4; otherwise, entering B-2-6-3;
b-2-6-3, if the first pulse signal on the DM meets the first pulse requirement of the FCP protocol, namely not less than 2.55ms and not more than 2.65ms, entering C-6-1, otherwise, entering B-2-6-4;
c-6-1, initiating a signal by the equipment and receiving a feedback signal;
c-6-2, circulating the step B-6-1 for 12 times, and entering D and C-8 if the feedback signals received each time are correct and the same; otherwise, enter B-3.
C-2-6-4, if the pulse signal on the DP or DM meets the high-pass QC3.0 protocol requirement, entering C-7; otherwise, entering B-3;
c-7, resolving the pulse signals received on the DP or the DM, and entering D and C-10.
C-10, reading DP and DM voltage values, if the voltage values accord with the voltage rule of high-pass QC2.0, judging that the voltage values are devices supporting high-pass QC2.0, and entering C-2; if the voltage rule accords with the high-pass QC3.0, the device is judged to be a device supporting the high-pass QC3.0, and the device enters C-7; if the two are not in accordance, entering B-2-1.
Step B-8 is the process of performing continuous communication and voltage and current detection while performing step D, the result is fed back to the microprocessor as a basis for returning to B or performing D adjustment.
Since the content of various charging protocols may change with the update of the technology, such as parameters, the specific parameters appearing in the above embodiments are only specific identification methods for the existing protocols, and the protection of the present solution is not specifically limited.
Example 4
The embodiment is explained for the device identification supporting the USB PD protocol in the market. The method for identifying the USB TYPE-C CC signal wire comprises the following steps:
b-4-1, capturing the pulse signal on the special signal line CC;
b-4-2, analyzing the pulse signal, entering C-9 if the pulse signal is a charging identification signal, and otherwise entering B-4-1;
c-9, performing communication according to the judgment of the B-4 and analyzing the signal to acquire charging parameters, such as: charging currents 1A, 2A, 3A, charging voltages 5V, 9V, 12V. Into D and C-8.
Step C-8 is the process of performing continuous communication and voltage and current detection while performing step D, the result of which is fed back to the microprocessor as a basis for returning to B or performing D adjustment.
Example 5
During the process of charging the equipment, the data line has a line loss phenomenon, namely, the larger the current is, the larger the voltage difference between two ends of the conductor is. The method of the present scheme is optimized on the basis of the above embodiment, that is, step D further includes: when the charging is not constant current charging, the output voltage is adjusted according to the actual charging current to realize output compensation.
Specifically, when the current is less than 1A, the compensation is 0;
when the voltage is less than 1.5 and more than 1A, the compensation is 0.15V;
when the voltage is less than 2A and more than 1.5A, the compensation is 0.2V;
greater than 2A, the offset is 0.25V.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. The intelligent universal charging identification method based on the USB is characterized in that the method runs in a microprocessor and comprises the following steps:
A. adjusting and setting parameters and thresholds of voltage and current for identification and communication signal rules according to a charging identification protocol so as to carry out correct charging identification;
B. detecting the access of the equipment, and judging the communication mode of the equipment and the charging equipment;
C. according to the communication mode, the device is communicated with the communication terminal, voltage and current detection is carried out, and charging identification is carried out on the device according to the obtained voltage, current or pulse communication signal information;
D. correspondingly adjusting the output voltage and the output current according to the charging identification result to charge the equipment, and adjusting the output voltage according to the actual charging current to realize line loss compensation when the equipment is not subjected to constant current charging;
if the device and the charging device communicate on Vbus, the method for identifying the device comprises the following steps:
b-1-1, capturing a current signal on Vbus;
b-1-2, analyzing the current signal, judging whether the charging identification of the access equipment is a Vbus current communication mode, if so, entering C-1, otherwise, entering B-1-1;
c-1, selecting a corresponding charging identification protocol for communication according to the analysis result of the current signal, acquiring parameter information required by equipment charging, and entering the step D and the step C-8;
if the device communicates with the charging device on the DP and the DM, the method for identifying the device comprises the following steps:
b-2-1, connecting DP and DM, and setting voltages on DP and DM;
b-2-2, detecting the voltage on DP and DM and the Vbus current;
b-2-3, if the current is larger than the set identification threshold and the voltage between the DP and the DM does not meet the requirements of the high-pass QC protocol or the FCP protocol, entering B-3; otherwise, entering B-2-4;
b-2-4, if the high-pass QC protocol or FCP protocol requirements are met, disconnecting DP and DM, entering B-2-5, otherwise, entering B-2-1;
b-2-5, if the voltages on the DP and the DM conform to the voltage rule of high-pass QC2.0, judging that the voltage is a device supporting high-pass QC2.0, and entering C-2; otherwise, entering B-2-6;
c-2, reading voltage values on the DP and the DM, acquiring charging parameters, and entering the step D and the step C-10;
b-2-6, capturing the signal, detecting the voltage on the DP and the DM, and judging that the equipment supports the charging protocol type;
the B-3 specifically comprises:
b-3-1, if the current is larger than the VOOC threshold value, entering B-3-2; otherwise, entering B-3-3;
b-3-2, disconnecting DP and DM, sending signals on DP and DM, and entering C-3 if correct reply is received; if the correct reply is not received, entering B-3-3;
c-3, analyzing the reply signals received on the DP and the DM, and entering the step D and the step C-8;
b-3-3, disconnecting the charging output, setting the voltages on the DP and the DM into an apple 2.4A mode, and entering C-4;
c-4, turning on a charging output, detecting current, and entering the step D and the step C-8 if the current is larger than a set identification threshold; otherwise, entering C-5;
c-5, connecting DP and DM, and entering the step D and the step C-8;
if the equipment and the charging equipment communicate on a special signal line, the equipment identification method comprises the following steps:
b-4-1, capturing the pulse signal on the special signal line;
b-4-2, analyzing the pulse signal, entering C-9 if the pulse signal is a charging identification signal, and otherwise entering B-4-1;
c-9, communicating and analyzing the signals according to the judgment of the B-4-2, acquiring charging parameters, and entering the step D and the step C-8;
step C-8 is the process of continuous communication and voltage and current detection while executing step D, and the result is fed back to the microprocessor and is used as the basis for returning to step B or executing adjustment D;
the specific steps of the step B-2-6 are as follows:
b-2-6-1, detecting a first pulse signal on DP or/and DM;
b-2-6-2, if a pulse signal is detected on the DP, entering B-2-6-4; otherwise, entering B-2-6-3;
b-2-6-3, if the first pulse signal on the DM meets the first pulse requirement of the FCP protocol, entering C-6-1, otherwise, entering B-2-6-4;
c-6-1, initiating a signal by the equipment and receiving a feedback signal;
c-6-2, circulating the step C-6-1 for 12 times, and entering the step D and the step C-8 if the feedback signals received each time are correct and the same; otherwise, entering B-3;
b-2-6-4, if the pulse signal on the DP or DM meets the high-pass QC3.0 protocol requirement, entering C-7; otherwise, entering B-3;
c-7, analyzing the pulse signal received on the DP or DM, and entering the step D and the step C-8;
c-10, reading DP and DM voltage values, if the voltage values accord with the voltage rule of high-pass QC2.0, judging that the voltage values are devices supporting high-pass QC2.0, and entering C-2; if the voltage rule accords with the high-pass QC3.0, the device is judged to be a device supporting the high-pass QC3.0, and the device enters C-7; if the two are not in accordance, entering B-2-1.
2. The intelligent universal charging identification method based on USB according to claim 1, wherein said step A further comprises:
the identification process and rules are set, adjusted and controlled at any time according to the new charging identification method and the new charging identification protocol, and the existing product is made to be compatible with the new charging identification requirement quickly by upgrading the firmware.
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| CN107508354B (en) * | 2017-09-07 | 2019-03-01 | 维沃移动通信有限公司 | A kind of charging method and mobile terminal |
| CN108710593B (en) * | 2018-05-24 | 2021-10-15 | 环旭电子股份有限公司 | Power supply method and device based on Type-C connector |
| CN109193870A (en) * | 2018-11-07 | 2019-01-11 | 深圳市云雄能源管理有限公司 | A kind of battery charging management method and device |
| CN109560591B (en) * | 2019-01-25 | 2020-09-01 | 维沃移动通信有限公司 | Charging method, device and terminal |
| CN111864858A (en) * | 2020-08-10 | 2020-10-30 | 北京小米移动软件有限公司 | Charging control method, charging control device, power utilization equipment, charging system and medium |
| CN113178918B (en) * | 2021-05-12 | 2023-06-02 | 展讯通信（上海）有限公司 | Charging method and device, and computer readable storage medium |
| CN113067393B (en) * | 2021-05-12 | 2023-01-13 | 展讯通信（上海）有限公司 | Charger and charging system |
| CN113178920A (en) * | 2021-05-12 | 2021-07-27 | 展讯通信（上海）有限公司 | Charging method and device and computer readable storage medium |
| CN113178919B (en) * | 2021-05-12 | 2023-02-17 | 展讯通信（上海）有限公司 | To-be-charged equipment and charging system |
| CN113162197A (en) * | 2021-05-12 | 2021-07-23 | 展讯通信（上海）有限公司 | Charging method and device and computer readable storage medium |
| CN113162199B (en) * | 2021-05-12 | 2023-06-02 | 展讯通信（上海）有限公司 | Charging method and device, and computer readable storage medium |
| CN114050634B (en) * | 2022-01-12 | 2022-06-17 | 深圳荣耀智能机器有限公司 | Charging test method, electronic device, adapter and charging test system |
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| CN104600774A (en) * | 2014-12-05 | 2015-05-06 | 深圳天珑无线科技有限公司 | Charging recognition circuit, charging recognition method, data line and mobile terminal |
| CN106300501A (en) * | 2016-07-26 | 2017-01-04 | 广东欧珀移动通信有限公司 | A kind of adapter recognition methods and intelligent mobile terminal |
| CN106385076A (en) * | 2016-10-26 | 2017-02-08 | 珠海市魅族科技有限公司 | Charging input and output control devices, terminal, charging equipment and control method |
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