JP2018129053A - Power adapter, terminal, and charging system - Google Patents

Abstract

SOLUTION: A power adapter 100 includes a power conversion unit 110 and a power line 121. The power conversion unit 110 charges a terminal via the power line 121. The power adapter 100 further includes a communication unit 130 and a data cable 122. When the power adapter 100 is connected to a terminal, the communication unit 130 communicates with the terminal via the data cable 122. The power adapter 100 still charges the terminal via the power line 121. When power adapter 100 is connected to the terminal, the power adapter 100 communicates with the terminal via the data cable 122.EFFECT: The load of a signal isolation unit becomes excessive compared with a method of time-division multiplexing power line of data and power. Therefore, the heat generation phenomenon occurring in the power line can be efficiently avoided.SELECTED DRAWING: Figure 1

Description

  The present invention relates to charging areas, and more particularly to power adapters, terminations and charging systems.

Currently, smartphones are attracting more and more consumers, but usually require charging because of the high power consumption of smartphones. As the smartphone battery capacity increases, the charging time increases accordingly. There is a strong demand for how fast charging can be realized.
The power adapter increases the output current, so that quick charging can be realized. However, when the output current is increased and the battery is quickly charged, usually the power adapter or mobile phone becomes too hot, overvoltage, overcurrent, interface burnout, etc. The power adapter or mobile phone may be damaged.
In order to solve this problem, a communication mechanism is installed between the power adapter and the terminal, and in the entire charging process, each indicator or data is immediately interacted to monitor and control the charging state in real time. Apple Inc., in the application of application number CN 102769312A, proposed a mechanism in which the power adapter and the electronic device maintain communication during the charging process. However, in the application, since power supply lines are time-division multiplexed when charging and data communication are performed, there is a high possibility of affecting the charging efficiency. Further, in order to perform communication in the process of charging by time division multiplexing, it is necessary to increase the number of sensitive elements that isolate the data signal and the power supply path. Therefore, the loss of the isolation element increases, and the heat generation phenomenon tends to be remarkable.

  An object of the present invention is to provide a power adapter, termination and charging system, and to avoid the heat generation phenomenon produced by time division multiplexing of power lines.

  A first aspect of the present invention provides a power adapter. The power adapter includes a power conversion unit and a charging interface. The charging interface includes a power line, and the power conversion unit charges a terminal through the power line. The power adapter further includes a communication unit, and the charging interface further includes a data cable. When the power adapter connects to the terminal, the communication unit communicates with the terminal via the data cable.

  In the first aspect, the embodiment in the first aspect is that the communication unit and the terminal negotiate a charging mode of the terminal before charging the terminal, and the charging mode includes a quick charging mode and a normal charging mode. including.

  In any one of the first aspect and the embodiment, the other embodiment of the first aspect is that the communication unit and the terminal negotiate a charging mode of the terminal. Sending a handshake request message to the terminal; the communication unit receives a handshake response message from the terminal; the handshake response message indicates that the terminal supports a fast charge mode; and A communication unit determining to charge the terminal according to a quick charge mode based on the handshake response message.

  In any one of the first aspect and the embodiment, the other embodiment of the first aspect is that the communication unit and the terminal negotiate the charging mode of the terminal. , Sending a handshake request message to the terminal, and if the communication unit fails to receive a handshake response message from the terminal, the communication unit determines to charge the terminal according to a normal charging mode Including.

  In any one of the first aspect and the embodiment, the other embodiment of the first aspect is that the communication unit and the terminal negotiate the charging mode of the terminal. Transmitting a handshake request message to the terminal; and the communication unit receives a handshake response message from the terminal, the handshake response message indicating a charging mode supported by the terminal and a current operating parameter of the terminal. And the power supply adapter and the terminal both support the quick charge mode, and when the operating parameters of the terminal satisfy the fast charge condition, the communication unit is connected to the terminal according to the quick charge mode. Deciding to charge, the power adapter and the terminal yes Also support the rapid charge mode Re, and operating parameters of the terminal, if not satisfied rapid charging conditions, including, and determining that the charge to the terminal the communication unit in accordance with the normal charging mode.

  In any of the first aspect or the embodiment, the other embodiment of the first aspect is that the communication unit and the terminal negotiate charging parameters before charging the terminal, specifically, The charging parameter includes at least one of a charging voltage and a charging current.

  In any one of the first aspect and the embodiment, the other embodiment of the first aspect is that the communication unit and the terminal negotiate a charging parameter, specifically, the communication unit is the terminal. Transmitting a handshake request message to the terminal, and the communication unit receives a handshake response message from the terminal, wherein the handshake response message includes the terminal model number, the terminal indicator, the battery temperature of the terminal, the terminal Including at least one of a maximum charging voltage supported by the terminal and a maximum charging current supported by the terminal, and the communication unit determining the charging parameter based on information of the handshake response message. .

  In any one of the first aspect and the embodiment, in another embodiment of the first aspect, the charging interface is a USB interface.

  In any of the first aspect or the above embodiments, in another embodiment of the first aspect, the data cable is at least one of a D + line and a D− line of a USB interface.

  In any one of the first aspect and the embodiment, another embodiment of the first aspect is the process in which the power supply adapter outputs a charging current to the terminal, and the communication unit communicates with the terminal through the data cable. Hold.

  In any one of the first aspect and the embodiment, another embodiment of the first aspect is the process in which the power supply adapter outputs a charging current to the terminal, and the communication unit is connected from the terminal by the data cable. The information is received, and the first information indicates a current battery voltage of the terminal.

  In any one of the first aspect and the embodiment, another embodiment of the first aspect is the process in which the power supply adapter outputs a charging current to the terminal, and the communication unit is connected to the terminal by the data cable. The information is transmitted, and the second information indicates a current value or a voltage value output from the power adapter.

  In any one of the first aspect and the embodiment, another embodiment of the first aspect is the process in which the power supply adapter outputs a charging current to the terminal, and the communication unit is connected to the terminal from the terminal by the data cable. The information is received, and the third information indicates a current value or a voltage value that the terminal accepts from the power adapter.

  In any one of the first aspect and the embodiment, another embodiment of the first aspect is the process in which the power supply adapter outputs a charging current to the terminal, and the communication unit is connected to the terminal by the data cable. The information is transmitted, and the fourth information indicates that the output voltage of the power adapter is an overvoltage or the output current is an overcurrent.

  In any one of the first aspect and the embodiment, another embodiment of the first aspect is the process in which the power supply adapter outputs a charging current to the terminal, and the communication unit is connected to the terminal from the terminal by the data cable. The information is received, and the fifth information indicates that a voltage that the terminal accepts from the power adapter is an overvoltage or an accepted current is an overcurrent.

  In either the first aspect or the embodiment, in another embodiment of the first aspect, the communication unit performs bidirectional communication with the terminal via the data cable.

  A second aspect of the present invention provides a terminal and includes a battery and a charging interface. The charging interface includes a power line. The terminal introduces a charging current from a power adapter through the power line and charges the battery. The terminal further includes a communication unit, and the charging interface further includes a data cable. When the terminal connects to the power adapter, the communication unit communicates with the power adapter via the data cable.

  In the second aspect, in the second aspect, the communication unit and the power adapter negotiate the charging mode of the terminal before charging the terminal, and the charging mode includes a quick charging mode and a normal charging. Includes modes.

  In either the second aspect or the embodiment, in another embodiment of the second aspect, the communication unit and the power adapter negotiate the charging mode of the terminal, specifically, the communication unit. Receives a handshake request message from the power adapter, the handshake request message indicates that the power adapter supports a fast charge mode, and the communication unit sends a handshake response message to the power adapter. And the handshake response message indicates that the power adapter charges the terminal according to a quick charge mode.

  In either the second aspect or the embodiment, in another embodiment of the second aspect, the communication unit and the power adapter negotiate the charging mode of the terminal, specifically, the communication unit. Receives a handshake request message from the power adapter, the handshake request message indicates that the power adapter supports a fast charge mode, and the current operating parameters of the terminal satisfy a fast charge condition. A handshake response message is transmitted to the power adapter, wherein the handshake response message indicates that the power adapter charges the terminal according to a fast charge mode, and the current operating parameter of the terminal is a condition for a quick charge. If you do not satisfy Send a Eku response message, the handshake response message, including a method comprising charging the terminal in accordance with the power adapter is normal charge mode.

  In either the second aspect or the embodiment, another embodiment of the second aspect is that the communication unit and the power adapter negotiate charging parameters before charging the terminal, specifically The charging parameter includes at least one of a charging voltage and a charging current.

  In any of the second aspect or the embodiment described above, another embodiment of the second aspect is that the communication unit and the power adapter negotiate a charging parameter. Receiving a handshake billing message from a power adapter, wherein the handshake billing message includes a model number of the power adapter, an indicator of the power adapter, an operating state of the power adapter, a maximum charging voltage supported by the power adapter, and the power adapter Including at least one of the supported maximum charging currents, the communication unit determining the charging parameters based on information in the handshake request message, and the communication unit transmitting a handshake response message to the terminal And the handshake Answer message comprises a be shown to be charged in the terminal according to the terminal the charging parameters.

  In any of the second aspect or the embodiments described above, in another embodiment of the second aspect, the charging interface is a USB interface.

  In any of the second aspect or the above embodiments, in another embodiment of the second aspect, the data cable is at least one of a D + line and a D− line of a USB interface.

  In any of the second aspect and the embodiment, another embodiment of the second aspect is the process in which the communication unit communicates with the power adapter by the data cable in a process in which the terminal receives a charging current from the power adapter. Hold.

  In any of the second aspect or the embodiment, another embodiment of the second aspect is that the communication unit is connected to the power adapter by the data cable in the process in which the terminal receives a charging current from the power adapter. The information is transmitted, and the first information indicates a current battery voltage of the terminal.

  In either the second aspect or the embodiment, another embodiment of the second aspect is characterized in that the communication unit is connected from the power adapter by the data cable in a process in which the terminal receives a charging current from the power adapter. Two information is received, and the second information indicates a current value or a voltage value output from the power adapter.

  In either the second aspect or the embodiment, another embodiment of the second aspect is that the communication unit is connected to the power adapter by the data cable in a process in which the terminal receives a charging current from the power adapter. Three information is transmitted, and the third information indicates a current value or a voltage value that the terminal accepts from the power adapter.

  In either the second aspect or the embodiment, another embodiment of the second aspect is the fourth aspect in which the communication unit is connected to the terminal by the data cable in the process in which the terminal receives a charging current from the power adapter. The information is transmitted, and the fourth information indicates that the output voltage of the power adapter is an overvoltage or the output current is an overcurrent.

  In either the second aspect or the embodiment, another embodiment of the second aspect is that the communication unit is connected to the power adapter by the data cable in a process in which the terminal receives a charging current from the power adapter. The fifth information indicates that the voltage received by the terminal from the power adapter is an overvoltage or that the current received is an overcurrent.

  In either the second aspect or the embodiment, in another embodiment of the second aspect, the terminal is a smartphone.

  In either the second aspect or the embodiment described above, in another embodiment of the second aspect, the communication between the communication unit and the power adapter is bidirectional communication.

  A third aspect of the present invention provides a charging system, the power adapter in the embodiment of either the first aspect or the first aspect, and the terminal in the embodiment of either the second aspect or the second aspect. including.

  In an embodiment of the invention, the power adapter still charges the terminal via the power line. When the power adapter is connected to the terminal, the power adapter communicates with the terminal through a data cable. Compared with the data and power time-division multiplexed power line system, it is possible to efficiently avoid the heat generation phenomenon produced by the excessive load of the signal isolation unit on the power line.

  The following briefly describes the drawings required for the embodiments of the present invention, so as to more clearly describe the technical solutions of the embodiments of the present invention. The drawings described below are only examples of the present invention. For those skilled in the art, other drawings can be obtained on the basis of these drawings on the premise that no creativity is devised.

It is a block diagram which shows typically the power adapter which the Example of this invention provides. It is a block diagram which shows typically the terminal which the Example of this invention provides. It is a block diagram which shows typically the charging system which the Example of this invention provides.

  The technical solutions of the embodiments of the present invention will be described clearly and completely by combining the drawings and the embodiments of the present invention. It will be appreciated that the embodiments described herein are some embodiments of the present invention and not the entire embodiments. For the person skilled in the art based on the present invention, all other embodiments belong to the scope protected by the present invention on the premise that the invention is not devised.

  FIG. 1 is a block diagram schematically showing a power adapter provided by an embodiment of the present invention. The power adapter 100 includes a power conversion unit 110 and a charging interface 120. The charging interface 120 includes a power line 121, and the power conversion unit 110 charges the terminal through the power line 121. The power adapter 100 further includes a communication unit 130, and the charging interface 120 further includes a data cable 122. When the power adapter 100 is connected to the terminal, the communication unit 130 communicates with the terminal via the data cable 122.

  The power conversion unit 110 converts AC power into DC power. For example, 220 v commercial power is converted to 5 v DC power.

  The power supply line 121 may be one or plural. The data cable 122 may be one or plural.

  The charging interface 120 may be a USB interface. The data cable 122 may be at least one of a D + line and a D− line of a USB interface. The power adapter according to the embodiment of the present invention may be integrated with the USB cable, but may be connected to the terminal with a single USB plug and a single USB cable. The USB interface may be a normal USB interface or a micro USB interface.

  Further, when the power adapter 100 is connected to the terminal, the power adapter 100 can first handshake with the terminal once or a plurality of times, and charging can be started after the handshaking is completed. Here, in the so-called handshake, the power adapter and the terminal transmit messages (or signals) to each other and interact with each message necessary before charging. For example, the model or type of the power adapter and the terminal, the operating state of the power adapter, the temperature of the battery in the terminal, the charging mode supported by the power adapter and the terminal, the output capability of the power adapter voltage and current, the ability to accept the voltage and current of the terminal And so on. By interacting with these messages, the communication unit and the terminal negotiate the charging mode and charging parameters. For example, the charging mode includes a fast charging mode or a normal charging mode, and the charging parameters include a charging voltage (eg, a starting charging voltage), a charging current (eg, a starting charging current), and the like.

  As described above, communication between the communication unit 130 and the terminal can occur during the negotiation process before the power adapter charges the terminal (at this time, the power adapter has not yet output the charging current to the terminal). However, the embodiment of the present invention is not limited to this, and communication between the communication unit 130 and the terminal is a process in which the power adapter charges the terminal (that is, a process in which the power adapter outputs a charging current to the terminal). ) Can also occur. For example, the battery voltage is received from the terminal in the charging process, or the input voltage or current of the power adapter detected by the terminal is received from the terminal in the charging process, or the terminal and overcurrent / overvoltage are detected in the charging process. Interact with messages. In addition, communication between the communication unit 130 and the terminal can occur at the end of charging. For example, the power adapter and the terminal negotiate to finish charging.

  In an embodiment of the invention, the power adapter still charges the terminal via the power line. When the power adapter is connected to the terminal, the power adapter communicates with the terminal through a data cable. Compared with the time-division multiplexed power line system for data and power, it is possible to efficiently avoid the heat generation phenomenon caused by the excessive load of the signal isolation unit on the power line.

  As another example, the communication unit 130 performs two-way communication with the terminal via the data cable 122.

  Specifically, the communication units 130 can interact with each other parameter. For example, in the charging process, the communication unit 130 outputs the output current or voltage of the power adapter to the terminal, and the terminal also outputs the input voltage and current received from the power adapter to the power adapter. Alternatively, the communication unit 130 transmits a handshake request message to the terminal and inquires of the terminal whether to support quick charging. The terminal returns a handshake response message to the communication unit 130 to notify the charging mode supported by the power adapter.

  As another example, before charging the terminal, the communication unit 130 and the terminal negotiate the charging mode of the terminal. The charging mode includes a quick charging mode and a normal charging mode.

  Specifically, the charging mode of the terminal is negotiated by a method in which the communication unit 130 and the terminal transmit handshake signals to each other. The handshake signal may be transmitted to the terminal by the communication unit 130 or may be transmitted from the terminal to the communication unit 130.

  In addition, as one embodiment, the communication unit 130 and the terminal negotiate the charging mode of the terminal. Specifically, the communication unit transmits a handshake request message to the terminal, and the communication unit A handshake response message is received, the handshake response message indicates that the terminal supports the fast charge mode, and the communication unit determines to charge the terminal according to the quick charge mode based on the handshake response message. Including.

  The handshake billing message can indicate a power adapter for which the power adapter supports a fast charge mode. That is, when the terminal receives a handshake request message from the power adapter, the power adapter supports the quick charge mode. Further, nothing is described in the handshake request message, and only the communication with the terminal may be requested. When the terminal responds with the handshake request message, the power adapter and the terminal further negotiate messages such as charging mode and charging parameters.

  In addition, as another embodiment, the communication unit 130 and the terminal negotiate the charging mode of the terminal. Specifically, the communication unit 130 transmits a handshake request message to the terminal, and the handshake from the terminal. The communication unit 130 determines to charge the terminal according to the normal charging mode when the response message is not received.

  For example, when both the power adapter and the terminal support the quick charge mode, the power adapter transmits a handshake request message to the terminal, and the terminal returns a handshake response message. However, if the terminal does not return a handshake response message, the power adapter charges the terminal according to the default normal charging mode. There are several reasons why the terminal does not return the handshake response message. For example, if the terminal cannot support the quick charge mode and does not identify the handshake request message, or the terminal has identified the handshake request message but cannot meet the fast charge condition due to its operating status, Abandon sending the response message, for example, if the battery power is very low and the device will not respond to the handshake response message if it does not enter the quick charge mode immediately, the power adapter will Charge according to the charging mode.

  In addition, as another embodiment, the communication unit 130 and the terminal negotiate the charging mode of the terminal. Specifically, the communication unit 130 transmits a handshake request message to the terminal, Unit 130 receives a handshake response message from the terminal, the handshake response message includes the charging mode supported by the terminal and the current operating parameters of the terminal, and both the power adapter and the terminal support the fast charging mode; And if the current operating parameters of the terminal satisfy the fast charging condition, the communication unit 130 decides to charge the terminal according to the quick charging mode, and the power adapter and the terminal both support the quick charging mode. And the current operating parameters of the terminal If not satisfied conductive condition includes determining that the charge to the terminal, the communication unit 130 in accordance with the normal charging mode.

  Specifically, after the power adapter receives the handshake request response message, it is determined whether the terminal can support the quick charge mode. If the terminal supports the fast charging mode, the power adapter further determines whether the current operating parameters of the terminal satisfy the fast charging condition. For example, whether the temperature of the battery in the terminal satisfies the temperature required for quick charging, whether the battery voltage of the terminal satisfies the minimum voltage required for quick charging, and so on. If the current operating parameters of the terminal satisfy the quick charge condition, the battery is charged according to the quick charge mode. If you are not satisfied, charge in normal charge mode.

  The quick charge mode and the normal charge mode are two relatively concepts. In general, when charging a battery having the first power amount to the second power amount (the second power amount is greater than the first power amount), the charge required in the quick charge mode is charged in the normal charge mode. Understood less than time. Several methods can be used to realize the quick charge mode. For example, a voltage or current larger than that in the normal charging mode is provided to the terminal.

  In the negotiation process before the power adapter and the terminal are charged, not only the charging mode is negotiated but also parameters such as charging voltage and charging current can be negotiated.

  As another example, before charging the terminal, the communication unit 130 and the terminal negotiate a charging parameter, and the charging parameter includes at least one of a charging voltage and a charging current.

  For example, the communication unit 130 transmits a handshake request message to the terminal. The communication unit 130 receives a handshake response message from the terminal. The handshake response message includes at least one of a terminal model number, a terminal label, a terminal battery temperature, a maximum charging voltage that can be supported by the terminal, and a maximum charging current that can be supported by the terminal. The communication unit 130 determines the charging parameter based on the information of the handshake response message.

  For example, the communication unit 130 knows from the handshake response message that the terminal supports the quick charge mode. Then, the communication unit 130 determines the voltage / current value when the terminal of the model number is rapidly charged based on the model number of the terminal. Further, the communication unit 130 determines the voltage / current value when the terminal of the model number is rapidly charged based on the current power amount of the battery of the terminal.

  As another example, in the process in which the power adapter 100 outputs a charging current to the terminal, the communication unit 130 maintains communication with the terminal through a data cable.

  In the process in which the power adapter 100 outputs the charging current to the terminal, one-way communication can be performed between the terminal and the communication unit 130. For example, the battery voltage is acquired from the terminal, and the output voltage and current are adjusted by the battery voltage. Bidirectional communication can also be performed between the terminal and the communication unit 130. For example, the power adapter 100 outputs an output voltage or current to the terminal, and receives the input voltage and current of the power adapter detected by the terminal from the terminal.

  As another example, in the process in which the power adapter 100 outputs the charging current to the terminal, the communication unit 130 receives the first information from the terminal through the data cable 122, and the first information is the current battery of the terminal. Indicates voltage.

By obtaining the current battery voltage of the terminal from the terminal, the adapter adjusts the output voltage, and the voltage output to the battery of the terminal does not exceed the voltage for safe charging of the battery. Improve safety when charging with an adapter.

  As another example, in the process in which the power adapter 100 outputs the charging current to the terminal, the communication unit 130 transmits the second information to the terminal through the data cable 122, and the second information is output by the power adapter 100. Current value or voltage value to be displayed.

  By transmitting a message indicating the voltage or current output from the adapter to the terminal, the terminal can determine whether the input voltage or current matches the voltage or current output from the adapter. The connection during the period can determine whether a fault exists. For example, there is a short circuit. Thereby, the safety | security at the time of charge is further improved with the adapter of the Example of this invention.

  As another example, in the process in which the power adapter 100 outputs the charging current to the terminal, the communication unit 130 receives the third information from the terminal through the data cable 122, and the third information The current value or voltage value received from 100 is shown.

  By receiving information indicating the voltage or current input to the terminal from the terminal, the adapter can determine whether the output voltage or current matches the voltage or current input to the terminal. The interim connection can determine whether a fault exists. For example, there is a short circuit. Thereby, the safety | security at the time of charge is further improved with the adapter of the Example of this invention.

  Since the power adapter 100 and the terminal are generally connected by a charging interface, and a resistance exists on a line on the charging interface, the current / voltage value output from the power adapter 100 to the terminal is determined by the terminal. It cannot be said to be equivalent to the current / voltage value received from the adapter 100. When the resistance of the line on the charging interface is extremely large, the voltage / current value output from the power adapter 100 is significantly different from the voltage / current value received by the terminal. Provide support for exclusion.

  As another example, in the process of charging the terminal, the communication unit 130 transmits the fourth information to the terminal through the data cable 122, and the fourth information indicates whether the output voltage of the power adapter 100 is an overvoltage. Or, the output current is an overcurrent.

  As another example, in the process of charging the terminal, the communication unit 130 receives the fifth information from the terminal through the data cable 122, and the fifth information is that the voltage received by the terminal from the power adapter 100 is an overvoltage. Indicates that the current that is present or accepted is an overcurrent.

  As another example, before charging the terminal, the communication unit 130 receives the sixth information from the terminal through the data cable 122. The sixth information indicates the temperature of the battery in the terminal.

  By obtaining the current battery temperature of the terminal from the terminal, the adapter can determine the state of the battery. For example, when the temperature of the battery exceeds a preset threshold, the terminal can determine that the safety of the battery is relatively low, and thus the output of power can be stopped. Thereby, the safety | security at the time of charge is further improved with the adapter of the Example of this invention.

  As another example, the communication unit 130 transmits the seventh information to the terminal through the data cable 122 before charging the terminal. The seventh information indicates the label or model number of the power adapter.

  By transmitting data indicating the adapter's sign or model number to the terminal, the terminal can determine that the connected equipment is an adapter, and thus can trigger a process in which the mobile phone enters a charged state (this process is a conventional process). It may be similar to technology (detailed explanation is omitted here), avoiding malfunctions caused by misidentifying that the equipment to which the mobile phone is connected is a computer or other terminal.

  In another embodiment, the communication unit 130 receives the eighth information from the terminal via the data cable 122 before charging the terminal. The eighth information indicates the sign or model number of the terminal.

  By acquiring the terminal label or model number data from the terminal and pre-recording the data by the adapter, the parameters of the battery used by the terminal (for example, whether it can support rapid charging, rated charging voltage, etc.) decide. Therefore, since the terminal equipment outputs electric power corresponding to the parameters of the battery to the terminal, the adapter according to the embodiment of the present invention further improves safety during charging.

  The power adapter according to the embodiment of the present invention will be described in detail in combination with the above description and FIG. The following will be described in detail with reference to FIG. 2 and a terminal according to an embodiment of the present invention. The power adapter and the terminal are two devices that mix and correspond to each other in the charging system. For the sake of simplicity, the contents of some duplication are omitted appropriately.

  FIG. 2 is a block diagram schematically showing a terminal provided by an embodiment of the present invention. The terminal 200 in FIG. 2 includes a battery 210 and a charging interface 220. The charging interface 220 includes a power line 221. The terminal 200 introduces a charging current from the power adapter through the power line 221 and charges the battery 210. The terminal 200 further includes a communication unit 230, and the charging interface 220 further includes a data cable 222. When the terminal 200 is connected to the power adapter, the communication unit 230 communicates with the power adapter via the data cable 222.

  In an embodiment of the invention, the power adapter still charges the terminal via the power line. When the power adapter is connected to the terminal, the power adapter communicates with the terminal through a data cable. Compared with the data and power time-division multiplexed power line system, it is possible to efficiently avoid the heat generation phenomenon caused by excessive load of the signal isolation unit on the power line.

  As another example, before charging the terminal, the communication unit 230 and the power adapter negotiate the charging mode of the terminal. The charging mode includes a quick charging mode and a normal charging mode.

  In another embodiment, the communication unit 230 and the power adapter negotiate the charging mode of the terminal. Specifically, the communication unit 230 receives a handshake request message from the power adapter, and the handshake request message is The communication unit 230 sends a handshake response message to the power adapter, the handshake response message indicating that the power adapter charges the terminal according to the quick charge mode; including.

  In another embodiment, the communication unit 230 and the power adapter negotiate the charging mode of the terminal. Specifically, the communication unit 230 receives a handshake request message from the power adapter, and the handshake request message is Indicates that the power adapter supports the fast charge mode and sends a handshake response message to the power adapter if the current operating parameters of the terminal satisfy the fast charge condition, and the handshake response message Indicates that the terminal is charging according to the fast charge mode and if the current operating parameters of the terminal do not satisfy the fast charge condition, a handshake response message is sent to the power adapter. usually Including a indicating that charging the terminal according to electric mode.

  As another example, before charging the terminal, the communication unit 230 and the power adapter negotiate a charging parameter, and the charging parameter includes at least one of a charging voltage and a charging current.

  In another embodiment, the communication unit 230 negotiates charging parameters with the power adapter. Specifically, the communication unit 230 receives a handshake request message from the power adapter, and the handshake request message includes the model number of the power adapter, the power adapter indicator, the operating state of the power adapter, the maximum charging voltage that can be supported by the power adapter, and the power source. It includes at least one of the maximum charging currents that the adapter can support. The communication unit 230 determines the charging parameter based on the information of the handshake request message. The communication unit 230 transmits a handshake response message to the terminal, and the handshake response message indicates that the terminal charges the terminal according to the charging parameters.

  In another embodiment, the charging interface is a USB interface.

  As another example, the data cable 222 is at least one of the D + line and the D− line of the USB interface.

  As another example, the communication unit 230 maintains communication with the power adapter through the data cable 222 while the terminal accepts the charging current from the power adapter.

  As another example, in the process in which the terminal accepts the charging current from the power adapter, the communication unit 230 transmits the first information to the power adapter through the data cable 222, and the first information is the current battery voltage of the terminal. Indicates.

  As another example, in the process where the terminal accepts the charging current from the power adapter, the communication unit 230 receives the second information from the power adapter via the data cable 222, and the second information is output by the power adapter. Indicates current value or voltage value.

  As another example, in the process in which the terminal accepts the charging current from the power adapter, the communication unit 230 transmits the third information to the power adapter through the data cable 222, and the third information Indicates the current value or voltage value received from.

  As another example, in the process in which the terminal accepts the charging current from the power adapter, the communication unit 230 transmits the fourth information to the terminal through the data cable 222, and the fourth information is the output voltage of the power adapter. Is an overvoltage or the output current is an overcurrent.

  As another example, in the process in which the terminal accepts the charging current from the power adapter, the communication unit 230 transmits the fifth information to the power adapter through the data cable 222, and the fifth information Indicates that the received voltage is an overvoltage or the received current is an overcurrent.

  As another example, the terminal is a smartphone.

  The smartphones listed above are only examples of terminals. The present invention is not limited to this. The technical solution of the present invention can be applied to various facilities whose functions are completed by supplying power with a battery. For example, it can be applied to a tablet, a portable computing facility, a message display facility, an image photographing facility, a communication facility, or the like.

  In addition, as one embodiment, the communication between the communication unit 230 and the power adapter is bidirectional communication.

  FIG. 3 is a block diagram schematically showing a charging system provided by an embodiment of the present invention. The charging system includes a power adapter 100 and a terminal 200.

  The term “and / or” in the present invention does not excessively describe the related relationship of the related objects, and can indicate three relationships. For example, there are three situations in which A and / or B exists only in A, A and B exist, and only B exists. In addition, the character “/” of the present invention generally indicates a relationship of “or” as the related object before and after.

  In each embodiment of the present invention, the size of each process number does not indicate the order of execution. The execution order of each process is determined by its own function and original logic. The implementation process of the embodiment of the present invention is not limited in any way.

  One skilled in the art can implement the present invention by combining the unit and algorithm steps described in the disclosed embodiments and combining electronic hardware or computer software and electronic hardware. Whether these functions are executed by hardware or software is determined by the specific application of the technical proposal and design constraints. Those skilled in the art can implement the described functionality by using different technical solutions for specific applications, but this implementation is not considered beyond the scope of the present invention.

  For the convenience and simplification of description, those skilled in the art will not be described in detail here because the specific operation process of the above-described system, apparatus and unit refers to the corresponding process in the method embodiment. Clearly understood.

  In some embodiments in which the present invention is provided, the disclosed systems, apparatus and methods can be implemented in other ways. For example, the embodiment of the apparatus described above is schematic. For example, the division of the unit may be another division scheme when actually realized as the division of the logic function. For example, multiple units or modules can be combined or assembled into another system, or some features can be omitted or not performed. The other is the coupling between the displayed or discussed each other, or the direct coupling, or the communication connection by means of several interfaces, the indirect coupling of the device or unit, or the communication connection is electrical, It can also be mechanical or other forms.

  The unit described as the separation member may be physically separated or not physically separated. The unit described as the display member may be a physical unit or may not be a physical unit. It may be located in one place or distributed in a plurality of net units. Depending on actual needs, the object of the present embodiment is realized in that part or in all units.

  Each functional unit of each embodiment of the present invention can be aggregated into one processing unit, each unit can be physically present independently, or two or more units can be aggregated into one unit. it can.

  The function is realized in the form of a software functional unit, and can be recorded on a computer-readable recording medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention is implemented essentially or in the form of software, a part that contributes to the conventional technology or a part of the technical solution. The computer software product is recorded on a recording medium, and all or part of the steps of the method described by each embodiment of the present invention is described in a certain computer facility (personal computer, server, or network facility) by some instructions. Is executed. The recording medium includes various media capable of recording codes, such as a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

  The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any change or change that can be easily conceived by those skilled in the art within the technical scope in which the present invention is disclosed belongs to the protection scope of the present invention. Therefore, the protection scope of the present invention is based on the protection scope of the claims.

Claims (29)

A power adapter including a power conversion unit and a charging interface,
The charging interface includes a power line,
The power conversion unit charges the terminal through the power line,
The power adapter further includes a communication unit,
The charging interface further includes a data cable;
When the power adapter connects to the terminal, the communication unit communicates with the terminal via the data cable;
In the process in which the power adapter outputs a charging current to the terminal, the communication unit holds communication with the terminal through the data cable, and the communication unit transmits information to the terminal through the data cable. To charge device. Before charging the terminal, the communication unit and the terminal negotiate the charging mode of the terminal,
The charging device according to claim 1, wherein the charging mode includes a quick charging mode and a normal charging mode. Specifically, the communication unit and the terminal negotiate the charging mode of the terminal.
The communication unit transmits a handshake request message to the terminal;
The communication unit receives a handshake response message from the terminal, the handshake response message indicating that the terminal supports a fast charge mode;
The charging device according to claim 2, comprising: the communication unit determining to charge the terminal according to the quick charge mode based on the handshake response message. Specifically, the communication unit and the terminal negotiate the charging mode of the terminal.
The communication unit transmits a handshake request message to the terminal;
4. The method according to claim 2, further comprising: determining that the communication unit charges the terminal according to a normal charging mode when a handshake response message is not received from the terminal. 5. Charging device. Specifically, the communication unit and the terminal negotiate the charging mode of the terminal.
The communication unit transmits a handshake request message to the terminal;
The communication unit receives a handshake response message from the terminal, the handshake response message including a charging mode supported by the terminal and a current operating parameter of the terminal;
When the charging device and the terminal both support the quick charge mode and the current operating parameters of the terminal satisfy the fast charge condition, the communication unit charges the terminal according to the quick charge mode. To decide to do,
When the charging device and the terminal both support the fast charging mode and the current operating parameters of the terminal do not satisfy the fast charging condition, the communication unit charges the terminal according to the normal charging mode. The charging device of claim 2, comprising: determining to do.   6. The charging unit according to claim 1, wherein the communication unit and the terminal negotiate a charging parameter before charging the terminal, and the charging parameter includes at least one of a charging voltage and a charging current. A charging device according to any one of the above. Specifically, the communication unit and the terminal negotiate charging parameters.
The communication unit transmits a handshake request message to the terminal;
The communication unit receives a handshake response message from the terminal, and the handshake response message includes a model number of the terminal, an indicator of the terminal, a battery temperature of the terminal, a maximum charging voltage that can be supported by the terminal, and the terminal Including at least one of the maximum charging current that can be supported,
The charging device according to claim 6, wherein the communication unit includes determining the charging parameter based on information of the handshake response message.   The charging device according to claim 1, wherein the charging interface is a universal serial bus USB interface.   The charging device according to claim 8, wherein the data cable is at least one of a D + line and a D- line of the USB interface.   In the process in which the charging device outputs a charging current to the terminal, the communication unit receives first information from the terminal through the data cable, and the first information indicates a current battery voltage of the terminal. The charging device according to claim 1, wherein: In the process in which the charging device outputs a charging current to the terminal, the communication unit receives third information from the terminal through the data cable,
The charging device according to claim 1, wherein the third information indicates a current value or a voltage value that the terminal accepts from the charging device. In the process in which the charging device outputs a charging current to the terminal, the communication unit transmits fourth information to the terminal through the data cable,
12. The charging device according to claim 1, wherein the fourth information indicates that an output voltage of the charging device is an overvoltage or an output current is an overcurrent. In the process in which the charging device outputs a charging current to the terminal, the communication unit receives fifth information from the terminal by the data cable,
The said 5th information shows that the voltage which the said terminal accepts from the said charging device is an overvoltage, or the electric current which accepts is an overcurrent, It is any one of Claim 1 or 10 to 12 characterized by the above-mentioned. Charging device.   The charging device according to any one of claims 1 to 13, wherein the communication unit performs bidirectional communication with the terminal through the data cable. A terminal including a battery and a charging interface,
The charging interface includes a power line,
The terminal introduces a charging current from a power adapter through the power line to charge the battery,
The terminal further includes a communication unit,
The charging interface further includes a data cable;
When the terminal connects to the power adapter, the communication unit communicates with the power adapter via the data cable;
In the process in which the terminal accepts a charging current from the power adapter, the communication unit holds communication with the power adapter via the data cable, and the communication unit receives information from the power adapter via the data cable. Characteristic terminal. Before charging the terminal, the communication unit and the power adapter negotiate the charging mode of the terminal,
The terminal of claim 15, wherein the charging mode includes a quick charging mode and a normal charging mode. Specifically, the communication unit and the power adapter negotiate the charging mode of the terminal.
The communication unit receives a handshake billing message from the power adapter, and the handshake billing message indicates that the power adapter supports a fast charge mode;
The communication unit includes transmitting a handshake response message to the power adapter, the handshake response message indicating that the power adapter charges the terminal according to a quick charge mode. 16. The terminal according to 16. Specifically, the communication unit and the power adapter negotiate the charging mode of the terminal.
The communication unit receives a handshake billing message from the power adapter, and the handshake billing message indicates that the power adapter supports a fast charge mode;
If a current operating parameter of the terminal satisfies a fast charging condition, a handshake response message is transmitted to the power adapter, and the handshake response message causes the power adapter to charge the terminal according to a quick charge mode. Showing
If a current operating parameter of the terminal does not satisfy a fast charging condition, a handshake response message is transmitted to the power adapter, and the handshake response message causes the power adapter to charge the terminal according to a normal charging mode. The terminal according to claim 16 or 17, comprising:   19. The charging unit according to claim 15, wherein the communication unit and the power adapter negotiate a charging parameter before charging the terminal, and the charging parameter includes at least one of a charging voltage and a charging current. The terminal according to Specifically, the communication unit and the power adapter negotiate charging parameters.
The communication unit receives a handshake request message from the power adapter, and the handshake request message includes a model number of the power adapter, an indicator of the power adapter, an operating state of the power adapter, and a maximum charging voltage that can be supported by the power adapter. Including at least one of the maximum charging current that can be supported by the power adapter;
The communication unit determines the charging parameter based on information in the handshake billing message;
The communication unit includes sending a handshake response message to the power adapter, the handshake response message indicating that the power adapter charges the terminal according to the charging parameters. 19. The terminal according to 19.   21. The terminal according to claim 15, wherein the charging interface is a universal serial bus USB interface.   The terminal according to claim 21, wherein the data cable is at least one of a D + line and a D- line of a USB interface. In the process in which the terminal accepts a charging current from the power adapter, the communication unit transmits first information to the power adapter via the data cable,
The terminal according to claim 15, wherein the first information indicates a current battery voltage of the terminal. In the process in which the terminal receives a charging current from the power adapter, the communication unit transmits third information to the power adapter by the data cable,
The terminal according to claim 15 or 23, wherein the third information indicates a current value or a voltage value that the terminal accepts from the power adapter. In the process in which the terminal receives a charging current from the power adapter, the communication unit transmits fourth information to the terminal by the data cable,
25. The terminal according to claim 15, wherein the fourth information indicates that an output voltage of the power adapter is an overvoltage or an output current is an overcurrent. In the process in which the terminal receives a charging current from the power adapter, the communication unit transmits fifth information to the power adapter through the data cable,
The terminal according to claim 15 or 23 to 25, wherein the fifth information indicates that a voltage received from the power adapter is an overvoltage or an accepted current is an overcurrent.   The terminal according to any one of claims 15 to 26, wherein the terminal is a smartphone.   The terminal according to any one of claims 15 to 27, wherein communication between the communication unit and the power adapter is bidirectional communication.   A charging system comprising: the power adapter according to any one of claims 1 to 14; and the terminal according to any one of claims 15 to 28.

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