WO2016192675A1 - 一种输出充电电流的方法及功率放大器 - Google Patents

一种输出充电电流的方法及功率放大器 Download PDF

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Publication number
WO2016192675A1
WO2016192675A1 PCT/CN2016/084745 CN2016084745W WO2016192675A1 WO 2016192675 A1 WO2016192675 A1 WO 2016192675A1 CN 2016084745 W CN2016084745 W CN 2016084745W WO 2016192675 A1 WO2016192675 A1 WO 2016192675A1
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WIPO (PCT)
Prior art keywords
power amplifier
identification information
category
module
current
Prior art date
Application number
PCT/CN2016/084745
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English (en)
French (fr)
Inventor
苏上丁
Original Assignee
广东欧珀移动通信有限公司
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Filing date
Publication date
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Publication of WO2016192675A1 publication Critical patent/WO2016192675A1/zh
Priority to US15/471,487 priority Critical patent/US10439416B2/en

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Classifications

    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low frequency amplifiers, e.g. audio preamplifiers
    • 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
    • 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
    • H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of 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
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • 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
    • 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

Definitions

  • the present invention relates to a communication device domain, and more particularly to a method and a power amplifier for outputting a charging current.
  • Power adapters or mobile power supplies for portable USB devices such as mobile phones and tablets need to adopt appropriate mechanisms for USB to identify different types of devices to output different currents for different types of devices.
  • USB communication is usually set.
  • the level value or connected state of the line D+/D- is used to identify different devices.
  • Embodiments of the present invention provide a method and a power amplifier for outputting a charging current, which can identify different types of devices to charge different currents, improve the efficiency of charging the power amplifier, and enhance the user experience of the power amplifier.
  • the present invention provides a method of outputting a charging current, including
  • the power amplifier acquires identification information from the device when the power amplifier is connected to the device;
  • the power amplifier determines a category of the device according to the identification information, and selects an output current according to a category of the device;
  • the power amplifier outputs a selected current to the device for charging the device.
  • the power amplifier is from the device Before obtaining the identification information, the method further includes:
  • the power amplifier sets an analog level value and transmits the analog level value to the device, the analog level value being used to trigger a device of the first category to feed back its identification information.
  • the method further includes:
  • the power amplifier sets a connection state of D+/D ⁇ , and sends the connection state of the D+/D ⁇ to the device, where the connection state of the D+/D ⁇ is used to trigger the device of the second category to feedback its identification. information.
  • the power amplifier determines, according to the identification information, a category of the device, including:
  • the power amplifier When the power amplifier receives the identification information fed back by the device according to the connection state of the D+/D-, it is determined that the device is the second device of the second category.
  • the power amplifier determines a category of the device according to the identification information, and according to the category of the device
  • the current selected for output includes:
  • the power amplifier sends status identification information to the first device to determine whether the first device is in a communication state
  • the first device is in a communication state, acquiring communication information from the first device, and selecting a current output to the first device according to the communication information, where the communication information includes music information and current information;
  • the power amplifier receives the identification information and selects a current output to the first device.
  • the power amplifier selects the output current according to the type of the device, including:
  • the power amplifier sets a connection state of D+/D-, triggering the second device to send a charging request to the power amplifier;
  • the power amplifier receives the charging request and selects a current output to the second device.
  • the present invention also provides a power amplifier comprising:
  • An obtaining module configured to acquire identification information from the device when the power amplifier is connected to the device;
  • a determining module configured to determine a category of the device according to the identification information acquired by the acquiring module
  • a selection module configured to select an output current according to a category of the device determined by the determining module
  • the power amplifier further includes:
  • the first setting module is configured to set an analog level value, and send the analog level value to the device, where the analog level value is used to trigger the device of the first category to feed back the identification information.
  • the power amplifier further includes:
  • a second setting module configured to set a connection state of D+/D-, and send the connection state of the D+/D- to the device, where the D+/D- connection state is used to trigger device feedback of the second category Its identification information.
  • the determining module is specifically configured to:
  • the power amplifier When the power amplifier receives the identification information fed back by the device according to the connection state of the D+/D- set by the second setting module, determining that the device is the second device of the second category.
  • the power amplifier further includes:
  • a sending module configured to send status identification information to the first device according to the analog level value set by the first setting module
  • a judging module configured to determine, according to the state identification information sent by the sending module, whether the first device is in a communication state.
  • the power amplifier further includes:
  • a triggering module configured to trigger the second device to send a charging request to the power amplifier according to the connection state of the D+/D- set by the second setting module
  • a receiving module configured to receive the charging request sent by the second device.
  • the present invention also provides a method of outputting a charging current, comprising the steps of: providing self-identification information to the power amplifier when connected to a power amplifier; receiving the power amplifier according to the identification information The current is output and charged according to the output current.
  • the method before the providing the self-identification information to the power amplifier, the method further includes: receiving the power amplifier to send Analog level And a value, wherein the analog level value is used to trigger the identification information of the first device that feeds back the first category.
  • the method before the providing the self-identification information to the power amplifier, the method further includes: receiving the power amplifier to send a connection state of D+/D-, wherein the connection state of the D+/D- is used to trigger feedback of the identification information of the second device of the second category.
  • the method further includes: receiving state identification information sent by the power amplifier; and providing communication information to the power amplifier, So that the power amplifier selects a current output to the first device according to the communication information.
  • the method further includes: detecting a connection state of D+/D ⁇ , and detecting a connection state of D+/D ⁇ And transmitting a charging request to the power amplifier, so that the power amplifier selects a current corresponding to the charging request to be output to the second device.
  • the present invention provides an apparatus, including: a first providing module, configured to provide self-identification information to the power amplifier when connected to a power amplifier; and a charging module, configured to receive the power amplifier according to The identification information provides an output current and is charged according to the output current.
  • the method further includes: a first receiving module, configured, before the providing the self-identification information to the power amplifier And receiving an analog level value sent by the power amplifier, wherein the analog level value is used to trigger the identification information of the first device that feeds back the first category.
  • the method further includes: a second receiving module, configured to provide the power amplifier to the power amplifier Before the identification information, the connection state of the D+/D ⁇ sent by the power amplifier is received, wherein the connection state of the D+/D ⁇ is used to trigger the feedback information of the second device of the second category.
  • the method further includes: a third receiving module, configured to receive status identification information sent by the power amplifier And a second providing module, configured to provide communication information to the power amplifier, so that the power amplifier selects a current output to the first device according to the communication information.
  • the method further includes: an checking module, configured to detect a connection state of D+/D ⁇ ; And a module, configured to send a charging request to the power amplifier when detecting a connection state of D+/D ⁇ , so that the power amplifier selects a current corresponding to the charging request to be output to the second device.
  • the present invention also provides a charging system comprising the power amplifier as described above and the apparatus as described above.
  • the power amplifier when the device is powered by the power amplifier, the power amplifier can obtain the identification information from the device and determine the type of the device, thereby outputting a corresponding current according to the type of the device, and the target is strong. It can improve the efficiency of charging the device by the power amplifier and enhance the user experience of the power amplifier.
  • FIG. 1 is a schematic flow chart of a first embodiment of a method for outputting a charging current according to an embodiment of the present invention
  • FIG. 2 is a schematic flow chart of a second embodiment of a method for outputting a charging current according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a power amplifier according to an embodiment of the present invention.
  • FIG. 4 is a structural block diagram of a device according to an embodiment of the present invention for taking power using a power amplifier.
  • the method for outputting a charging current includes the following steps:
  • the power amplifier may be connected to the device through a connection line, Bluetooth, or wifi, and is not limited herein.
  • the method for outputting the charging current and the power amplifier provided by the embodiment of the present invention will be specifically described below by taking the connection manner of the above power amplifier and the above device through a connecting line as an example.
  • the device described in the embodiment of the present invention may include a smart device such as a mobile phone, a tablet computer, or a smart game machine, and is not limited herein.
  • the power amplifier includes an interface, and the interface may be a universal serial bus (USB) interface, and the interface may be one, two or more.
  • the interface of the power amplifier is a USB interface, and the interface of the power amplifier is one.
  • the device is plugged and connected to the interface through the foregoing connection line to implement the connection. News and / or take power.
  • the power amplifier may be connected to the device by means of wireless sensing or the like to implement communication and/or power taking.
  • the interface of the above power amplifier can also be used to access the device for data transmission.
  • the identification information mentioned in the embodiment of the present invention may include category information of the device.
  • the identification information may be an Apple mobile phone or an Android mobile phone.
  • the power amplifier determines the type of the device according to the identification information, and selects the output current according to the type of the device.
  • the power amplifier may preset trigger information, and when the power amplifier is connected to the device, send the trigger information to the device to trigger the device to identify and output the identification information to the power amplifier. Further facilitating the determination of the device category.
  • the trigger information described in the embodiment of the present invention includes: an analog level value, or an analog voltage value, or an analog power value, or a D+/D-port connection state.
  • the trigger information can be specifically set according to different devices to improve the applicability of the power amplifier.
  • the foregoing trigger information is only an example, and is not exhaustive, and includes, but is not limited to, the trigger information of the above example, and is not limited herein.
  • S3 The power amplifier outputs the selected current to the device, and the current is used to charge the device.
  • the power amplifier can output corresponding current according to different currents required by different devices, and charge different devices, thereby improving the targeting of the power amplifier and improving the charging efficiency. For example, if the device is identified as the first device, the power amplifier outputs the 1A current to the first device according to the current required by the first device, for example, the required current is 1A, so that the first device This current can be received for charging. For example, if the device is identified as the second device, the power amplifier outputs 500 mA to the second device according to the current required by the second device, for example, the required current is 500 mA, so that the second device can receive This current is charged to ensure charging stability.
  • the power amplifier when the power amplifier is connected to the device, the power amplifier sets the trigger information, and sends the trigger information to the device, and identifies the category of the device according to the response of the device or the feedback information of the feedback. Specifically, the power amplifier sends the trigger information to the device, and waits for the device to respond within a preset time.
  • the preset time may be 30s or 60s, and if the device responds within the preset time, The identification information is fed back to the power amplifier, and the power amplifier identifies the device as a device of the first category, and the power amplifier can output a corresponding current according to the device of the first category, so that the device of the first category receives the current for charging.
  • the power amplifier cannot recognize the device, and thus cannot output current to the device, so charging cannot be achieved.
  • the power amplifier can obtain communication information from the device, and the communication signal
  • the information may include: music information or data information on the above device.
  • the music information may further include: playing music on the device or acquiring a music list of the device.
  • the foregoing data information may further include: picture information, video information, or other list information on the device.
  • the power amplifier when the device is powered by the power amplifier, the power amplifier can obtain the identification information from the device and determine the type of the device, thereby outputting a corresponding current according to the type of the device, and the target is strong. It can improve the efficiency of charging the device by the power amplifier and enhance the user experience of the power amplifier.
  • FIG. 2 is a schematic flow chart of a second embodiment of a method for outputting a charging current according to an embodiment of the present invention.
  • the method for outputting a charging current described in the embodiments of the present invention may include:
  • S11 The power amplifier acquires identification information from the device when the power amplifier is connected to the device.
  • the method for connecting the power amplifier to the device and the method for obtaining the device identification information in the embodiment of the present invention can be referred to the implementation manner described in the step S1 in the foregoing first embodiment, and details are not described herein again.
  • an analog level value may be set, and the analog level value is sent to the device, where the analog level value is used.
  • the device that triggers the first category feeds back its identification information.
  • the foregoing analog level value may be a required level value of the device of the first category. For example, if the level value required by the device of the first category is 2.0V or 2.7V, the analog level value is Then, it is 2.0V or 2.7V, and the device of the first category receives the analog level value and feeds back its identification information to the power amplifier, so that the power amplifier confirms that the device is the device of the first category.
  • connection state of the D+/D ⁇ may also be set, and the connection state of the D+/D ⁇ is sent to the device, where the D+/ The connection state of D- is used to trigger the device of the second category to feed back its identification information.
  • the connection state of the D+/D- is a connection state that can be recognized by the device of the second category.
  • the power amplifier sets a connection state of D+/D ⁇ , for example, the above D+ If the connection state of /D- is connected, the device of the second category can receive the connection state and feed back its identification information to the power amplifier, so that the power amplifier can recognize it as the device of the second category.
  • the connection state of the D+/D- is not connected, the device of the second category cannot receive the connection state, and thus the identification information cannot be fed back to the power amplifier. At this time, the power amplifier cannot recognize the device.
  • the device receives the analog level value and transmits identification information to the power amplifier.
  • the foregoing identification information may include current information, communication information, data information, or category information of the foregoing device. For example, if the device receives the analog level value and transmits its own current information to the power amplifier, that is, in response to the power amplifier, the power amplifier receives the current information, thereby identifying the device as the first The first device of the category.
  • the device receives the D+/D- connection state and feeds the identification information back to the power amplifier.
  • the above identification information may include current information, category information, data information, and the like of the above device.
  • the power amplifier can receive the current information, thereby determining that the device is in the second category.
  • the identification information sent by the foregoing device may also be data information, such as audio information and picture information, which is not limited herein.
  • the power amplifier sends status identification information to the first device, and determines whether the first device is in a communication state.
  • the status identification information may be audio information, list information current information, or data information.
  • the power amplifier sends audio information to the first device, and presets to wait for the first device response within a preset time, thereby determining whether the first device is in a communicable state, that is, whether the power amplifier is The communication information can be obtained from the first device.
  • S15 if the first device is in a communication state, acquiring communication information from the first device, and selecting a current output to the first device according to the communication information, where the communication information includes music information and current information. .
  • the power amplifier when the first device is in a communicable state, the power amplifier is capable of acquiring communication information from the first device, and is capable of selecting a current to output the first device according to the communication information.
  • the communication information includes: the communication information includes music information and current information, and the music information may include playing music on the first device or acquiring a music list on the first device.
  • the current information is current information required by the first device, such as the current adapted by the first device.
  • the power amplifier can acquire the communication information of the first device, so that the music list on the first device can be learned or the music on the first device can be played;
  • the amplifier can know the current required by the first device, and then select and output a corresponding current to the first device, thereby enabling charging of the first device while communicating.
  • the power amplifier sends a status identification request to the first device, and And in the preset response time of the power amplifier, the first device does not respond to the first device, and then the first device is determined to be in an uncommunicated state. Since the first device is in a state of no connection communication, for example, a shutdown state, the power amplifier cannot acquire the music list or play music information on the first device, and the power amplifier sets the first device.
  • the required power-on level that is, the above analog level value, and then transmitting the analog level value to the first device, thereby triggering the first device to send the identification information to the power amplifier, so that the power amplifier can be Identifying the information and outputting a corresponding current to the first device to charge the first device.
  • the foregoing identification information may include current information required by the first device, such as the current required by the first device.
  • the power amplifier receives the identification information and selects a current output to the first device.
  • the power amplifier is capable of receiving the identification information within a preset time period in which the first device sends the identification information, and the preset time may be 5s, 10s, etc., which is not limited herein.
  • the power amplifier determines the current value required by the first device by the identification information, thereby selecting a corresponding current value to be output to the first device, thereby enabling the first device to perform charging.
  • the first device when the first device is not in the communication state, receiving the identification information through the power amplifier to output current, the first device can receive the current and enter the communication state. At this time, the power amplifier does not The status recognition request is performed on the first device, that is, the audio information or the list information on the first device is not obtained.
  • the power amplifier may reconnect the first device to the power amplifier after outputting the current to the first device. The amplifier can issue a status identification request to the first device.
  • S18 The power amplifier sets a connection state of D+/D-, and triggers the second device to send a charging request to the power amplifier.
  • the power amplifier determines that the device is a second device
  • the power amplifier sets a connection state of D+/D ⁇ , sends the connection state to the second device, and presets the preset response.
  • the preset response time may be 5s or 10s, etc., and is not limited herein.
  • the second device receives the connection state of the D+/D-, transmits a charging request to the power amplifier, and requests charging.
  • the charging request may be the current information required by the second device.
  • the current information required by the second device is 500 mA or 1 A, which is not limited herein.
  • the power amplifier receives the charging request and selects a current output to the second device.
  • the power amplifier acquires current information required by the power amplifier according to the charging request sent by the second device, and outputs the current to the second device.
  • the power amplifier can perform current output charging without determining the communication state of the second device, and the power amplifier can know the data information, such as audio information or columns, on the second device. Table information, etc.
  • the power amplifier when the device is powered by the power amplifier, the power amplifier can obtain the identification information from the device and determine the type of the device, thereby outputting a corresponding current according to the type of the device, and the target is strong. And high charging efficiency enhances the user experience of the power amplifier.
  • FIG. 3 is a schematic structural diagram of a power amplifier according to a first embodiment of the present invention.
  • the power amplifier as shown in FIG. 3 includes: an acquisition module 200, a first setting module 210, a second setting module 220, a determining module 230, a transmitting module 240, a determining module 250, a triggering module 260, a receiving module 270, a selecting module 280, and an output.
  • Module 290 The power amplifier as shown in FIG. 3 includes: an acquisition module 200, a first setting module 210, a second setting module 220, a determining module 230, a transmitting module 240, a determining module 250, a triggering module 260, a receiving module 270, a selecting module 280, and an output.
  • Module 290 included in the power amplifier.
  • the obtaining module 200 is configured to acquire the identification information from the device when the power amplifier is connected to the device.
  • the power amplifier may be connected to the device through a connection line, Bluetooth, or wifi, and is not limited herein.
  • the above power amplifier may include an interface, and the above interface may be a universal serial bus (USB) interface, and the above interfaces may be one, two or more.
  • the interface of the power amplifier is a USB interface, and the interface of the power amplifier is one.
  • the device is plugged and connected to the interface through the foregoing connection line to implement communication and/or power take-off.
  • the power amplifier may be connected to the device by means of wireless sensing or the like to implement communication and/or power taking.
  • the interface of the above power amplifier can also be used to access the device for data transmission.
  • the identification information mentioned in the embodiment of the present invention may include category information of the device.
  • the identification information may be an Apple mobile phone or an Android mobile phone.
  • the first setting module 210 is configured to set an analog level value, and send the analog level value to the device, where the analog level value is used to trigger the device of the first category to feed back the identification information.
  • the first setting module 210 may preset trigger information, and when the power amplifier is connected to the device, send the trigger information to the device to trigger the device to identify and output the identification information to the power.
  • Amplifier the trigger information described in the embodiment of the present invention includes: an analog level value, or an analog voltage value, or an analog power value, or a D+/D-port connection state.
  • the trigger information can be specifically set according to different devices to improve the applicability of the power amplifier.
  • the foregoing trigger information is only an example, and is not exhaustive, and includes, but is not limited to, the trigger information of the above example, and is not limited herein.
  • the above analog level value may be the level value required by the above device. Identification letter above The information is the category information of the above device.
  • the second setting module 220 is configured to set a connection state of D+/D-, and send the connection state of the D+/D- to the device, where the connection state of the D+/D- is used to trigger device feedback of the second category. Its identification information.
  • the connection state of the D+/D- is a connection state that can be recognized by the device of the second category.
  • the second setting module 220 sets the D+/D- The connection state, for example, the connection state of the above D+/D- is connected, the device of the second category can receive the connection state, and feed back its identification information to the power amplifier, so that the power amplifier can recognize it as the second Category of equipment.
  • the connection state of the D+/D- is not connected, the device of the second category cannot receive the connection state, and thus the identification information cannot be fed back to the power amplifier. At this time, the power amplifier cannot recognize the device.
  • the determining module 230 is configured to determine the category of the device according to the foregoing identification information acquired by the acquiring module 200.
  • the determining module 230 is specifically configured to: when the power amplifier receives the identification information fed back by the device according to the analog level value, determining that the device is the first device of the first category;
  • the power amplifier When the power amplifier receives the identification information fed back by the device according to the connection state of the D+/D-, it is determined that the device is the second device of the second category.
  • the determining module 230 may determine the category of the device according to the identification information acquired by the acquiring module 200.
  • the foregoing identification information may include current information, communication information, data information, or category information of the foregoing device. For example, if the device receives the analog level value and transmits its own current information to the power amplifier, that is, in response to the power amplifier, the power amplifier can acquire the current information, thereby determining the device as the first category. The first device.
  • the determining device 230 may determine that the device is a second device of the second category. Specifically, when the device receives the connection state of the D+/D-, the device can feed back its own identification information to the power amplifier.
  • the above identification information may include current information, category information, data information, and the like of the above device.
  • the power amplifier can acquire the current information, thereby determining the device by the determining module 230.
  • the identification information sent by the foregoing device may also be data information, such as audio information and picture information, which is not limited herein.
  • the sending module 240 is configured to send the state identification information to the first device according to the foregoing analog level value set by the first setting module 210.
  • the sending module 240 may send the state identification information to the first device according to the analog level value set by the first setting module 210 to further confirm the state of the first device.
  • the determining module 250 is configured to determine, according to the state identification information sent by the sending module 240, whether the first device is in a communication state.
  • the determining module 250 may determine, according to the state identification information, the communication state of the first device.
  • the status identification information may be audio information, list information, current information, or data information. For example, when the power amplifier sends the audio information to the first device and presets to wait for the first device response within a preset time, the determining module 250 determines whether the first device is in a communicable state, that is, the above Whether the power amplifier can obtain its communication information from the first device described above.
  • the power amplifier when the determining module 250 determines that the first device is in a communicable state, the power amplifier is capable of acquiring communication information from the first device, and is capable of selecting a current output according to the communication information.
  • the communication information includes: the communication information includes music information and current information, and the music information may include playing music on the first device or acquiring a music list on the first device.
  • the current information is current information required by the first device, such as the current adapted by the first device.
  • the power amplifier When the power amplifier sends a status identification request to the first device, if the first device is in a communication state, the first device responds to the power amplifier within a preset response time of the power amplifier, and the preset response is The time can be 30s or 60s, etc., and is not limited here.
  • the power amplifier can acquire the communication information of the first device, so that the music list on the first device can be learned or the music on the first device can be played; The amplifier can know the current required by the first device, and then select and output a corresponding current to the first device, thereby enabling charging of the first device while communicating.
  • the determining module 250 may determine the foregoing.
  • the first device is in an uncommunicated state. Since the first device is in a state of no connection communication, for example, a shutdown state, the power amplifier cannot obtain the music list or the music information on the first device, and the first setting module 210 sets the first The power-on level required by a device, that is, the above analog level value, is then sent by the transmitting module 240 to the first device, thereby triggering the first device to send the identification information to the power amplifier.
  • the power amplifier is configured to output a corresponding current to the first device according to the identification information to implement charging of the first device.
  • the foregoing identification information may include current information required by the first device, such as the current required by the first device.
  • the first device when the first device is not in the communication state, receiving the identification information through the power amplifier to output current, the first device can receive the current and enter the communication state. At this time, the power amplifier does not The status recognition request is performed on the first device, that is, the audio information or the list information on the first device is not obtained. If the user needs the above power amplifier to perform a state identification request on the first device, the power may be amplified. After outputting the current to the first device, the device reconnects the first device to the power amplifier. At this time, the power amplifier can issue a status identification request to the first device.
  • the triggering module 260 is configured to trigger the second device to send a charging request to the power amplifier according to the connection state of the D+/D- set by the second setting module 220.
  • the triggering module 260 is configured to trigger the second device to send a charging request to the power amplifier.
  • the second setting module 220 sets the connection state of the D+/D-, and sends the connection state to the second device by using the sending module 240, and presets Waiting for the response of the second device in the preset response time, the preset response time may be 5s or 10s, etc., which is not limited herein.
  • the second device receives the connection state of the D+/D-, and triggers a charging request to the power amplifier under the trigger of the trigger module 260 to request charging.
  • the charging request may be the current information required by the second device.
  • the current information required by the second device is 500 mA or 1 A, which is not limited herein.
  • the receiving module 270 is configured to receive the foregoing charging request sent by the second device.
  • the receiving module 270 receives the charging request sent by the second device, and obtains current information to determine the current required by the second device.
  • the selection module 280 is configured to select the output current according to the category of the device determined by the determining module 230.
  • the selection module 280 selects a current to which the device is adapted according to the type of the device.
  • the output module 290 is configured to output the current selected by the selection module 290 to the device.
  • the output module 290 outputs current to the device to charge the device.
  • FIG. 4 is a schematic structural diagram of the above device using the power amplifier to take power according to an embodiment of the present invention.
  • the power amplifier is connected to the device, and obtains identification information from the device to determine the type of the device, and then outputs the current required by the device according to the type of the device to achieve different types of devices.
  • the purpose of charging Specifically, as shown in FIG. 3, the above power amplifier may adopt a chip integrated with a USB three-pole double-throw switch to identify different power take-off currents required by different devices.
  • the power amplifier has three interfaces, which are a first interface, a second interface, and a third interface.
  • the three interfaces include three charging mechanisms for powering different types of devices.
  • the above power amplifier can also adopt a chip integrated with a double-pole double-throw switch, such as a TPS2514 chip.
  • the power amplifier when the device is powered by the power amplifier, the power amplifier can obtain the identification information from the device and determine the type of the device, thereby outputting a corresponding current according to the type of the device, and the target is strong. It can improve the efficiency of charging the device by the power amplifier and enhance the user experience of the power amplifier.

Abstract

一种输出充电电流的方法，包括：当功率放大器与设备连接时，所述功率放大器从所述设备处获取识别信息（S1）；所述功率放大器根据上述识别信息确定所述设备的类别，并根据所述设备的类别选择输出的电流(S2)；所述功率放大器将选择的电流输出到所述设备，所述电流用于对所述设备进行充电(S3)。本方法，能够使得设备在使用功率放大器进行取电时，功率放大器能够通过从设备处获取识别信息，并确定设备的类别，从而根据设备的类别对设备输出相应的电流，针对性强，可提高功率放大器对设备进行充电的效率，增强了功率放大器的用户体验。另外，还提供了一种用于上述输出充电电流方法的功率放大器。

Description

一种输出充电电流的方法及功率放大器
相关申请的交叉引用
本申请要求广东欧珀移动通信有限公司于2015年6月3日提交的、发明名称为“一种输出充电电流的方法及功率放大器”的、中国专利申请号“201510299774.3”的优先权。
技术领域
本发明涉及通信设备域，尤其涉及一种输出充电电流的方法及功率放大器。
背景技术
移动电话、平板电脑等便携式USB设备所采用的电源适配器或移动电源，需要采取适当机制供USB识别不同类别的设备，以针对不同类别的设备输出不同的电流，例如，通常采用通过设定USB通讯线D+/D-的电平值或连通状态来实现不同设备的识别。
现有的功率放大器通常内置有电池，其具备实现移动电源功能的重要条件。然而在使用功率放大器给USB设备供电时，由于其不具备识别不同设备的功能，因而无法确定不同设备所需的不同电流，故而容易导致取电出现问题。比如取电电流小了，则不能充分发挥移动电源的电流输出能力；而如果取电电流大了，则会发生输出过载保护，可能导致取电不成功或实际取电电流偏小。
发明内容
本发明实施方式提供一种输出充电电流的方法及功率放大器，可识别不同类别的设备以输出不同的电流为其充电，可提高功率放大器为设备充电的效率，增强了功率放大器的用户体验。
为了实现上述目的，本发明实施方式提供如下技术方案：
一方面，本发明提供一种输出充电电流的方法，包括
当功率放大器与设备连接时，所述功率放大器从所述设备处获取识别信息；
所述功率放大器根据上述识别信息确定所述设备的类别，并根据所述设备的类别选择输出的电流；
所述功率放大器将选择的电流输出到所述设备，所述电流用于对所述设备进行充电。
结合第一方面，在第一方面的第一种可能的实现方式中，所述功率放大器从所述设备 处获取识别信息之前，所述方法还包括：
所述功率放大器设置模拟电平值，并将所述模拟电平值发送给所述设备，所述模拟电平值用于触发第一类别的设备反馈其识别信息。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述功率放大器从所述设备处获取识别信息之前，所述方法还包括：
所述功率放大器设置D+/D-的连接状态，并将所述D+/D-的连接状态发送给所述设备，所述D+/D-的连接状态用于触发第二类别的设备反馈其识别信息。
结合第一方面的第一种可能的实现方式，在第一方面的第三种可能的实现方式中，所述功率放大器根据所述识别信息确定所述设备的类别，包括：
当所述功率放大器接收到所述设备根据所述模拟电平值反馈的识别信息时，确定所述设备为第一类别的第一设备；
当所述功率放大器接收到所述设备根据上述D+/D-的连接状态反馈的识别信息时，确定所述设备为第二类别的第二设备。
结合第一方面的第一种可能的实现方式，在第一方面的第四种可能的实现方式中，所述功率放大器根据所述识别信息确定所述设备的类别，并根据所述设备的类别选择输出的电流包括：
所述功率放大器向所述第一设备发送状态识别信息，判断所述第一设备是否处于通讯状态；
若所述第一设备处于通讯状态，则从所述第一设备处获取通讯信息，并根据所述通讯信息选择电流输出至所述第一设备，所述通讯信息包括音乐信息以及电流信息；
若所述第一设备未处于通讯状态，则设定所述模拟电平值为所述第一设备的预设电平值，所述模拟电平值触发所述第一设备发送识别信息至所述功率放大器；
所述功率放大器接收所述识别信息，并选择电流输出至所述第一设备。
结合第一方面的第一种可能的实现方式，在第一方面的第五种可能的实现方式中，所述功率放大器根据所述设备的类别选择输出的电流，包括：
所述功率放大器设置D+/D-的连接状态，触发所述第二设备发送充电请求至所述功率放大器；
上述功率放大器接收所述充电请求，并选择电流输出至所述第二设备。
第二方面，本发明还提供了一种功率放大器，包括：
获取模块，用于当功率放大器与设备连接时，从所述设备处获取到识别信息；
确定模块，用于根据所述获取模块获取到的所述识别信息确定所述设备的类别；
选择模块，用于根据所述确定模块确定的所述设备的类别选择输出的电流；
以及输出模块，用于将所述选择模块选择的电流输出至所述设备。
结合第二方面，在第二方面的第一种可能的实现方式中，所述功率放大器还包括：
第一设置模块，用于设置模拟电平值，并将模拟电平值发送给所述设备，所述模拟电平值用于触发第一类别的设备反馈其识别信息。
结合第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述功率放大器还包括：
第二设置模块，用于设置D+/D-的连接状态，并将上述D+/D-的连接状态发送给所述设备，所述D+/D-的连接状态用于触发第二类别的设备反馈其识别信息。
结合第二方面的第一种可能的实现方式，在第二方面的第三种可能的实现方式中，所述确定模块具体用于：
当所述功率放大器接收到所述设备根据所述第一设置模块设定的所述模拟电平值反馈的识别信息时，确定所述设备为第一类别的第一设备；或者
当所述功率放大器接收到所述设备根据所述第二设置模块设置的所述D+/D-的连接状态反馈的识别信息时，确定所述设备为第二类别的第二设备。
结合第二方面的第一种可能的实现方式，在第二方面的第四种可能的实现方式中，所述功率放大器还包括：
发送模块，用于根据所述第一设置模块设置的所述模拟电平值发送状态识别信息至所述第一设备；
以及判断模块，用于根据所述发送模块发送的所述状态识别信息判断所述第一设备是否处于通讯状态。
结合第二方面的第一种可能的实现方式，在第二方面的第五种可能的实现方式中，所述功率放大器还包括：
触发模块，用于根据所述第二设置模块设置的所述D+/D-的连接状态触发所述第二设备发送充电请求至上述功率放大器；
及接收模块，用于接收所述第二设备发送的所述充电请求。
第三方面，本发明还提供了一种输出充电电流的方法，包括以下步骤：当与功率放大器连接时，向所述功率放大器提供自身识别信息；接收所述功率放大器根据所述识别信息提供的输出电流，并根据所述输出电流进行充电。
结合第三方面的第一种可能的实现方式，在第三方面的第一种可能的实现方式中，在所述向所述功率放大器提供自身识别信息之前，还包括：接收所述功率放大器发送的模拟电平 值，其中，所述模拟电平值用于触发反馈第一类别的第一设备的所述识别信息。
结合第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，在所述向所述功率放大器提供自身识别信息之前，还包括：接收所述功率放大器发送的D+/D-的连接状态，其中，所述D+/D-的连接状态用于触发反馈第二类别的第二设备的所述识别信息。
结合第三方面的第一种可能的实现方式，在第三方面的第三种可能的实现方式中，还包括：接收所述功率放大器发送的状态识别信息；向所述功率放大器提供通讯信息，以使所述功率放大器根据所述通讯信息选择电流输出至所述第一设备。
结合第三方面的第一种可能的实现方式，在第三方面的第四种可能的实现方式中，还包括：检测D+/D-的连接状态，并在检测到D+/D-的连接状态时向所述功率放大器发送充电请求，以使所述功率放大器选择所述充电请求对应的电流输出至所述第二设备。
第四方面，本发明还提供了一种设备，包括：第一提供模块，用于当与功率放大器连接时，向所述功率放大器提供自身识别信息；充电模块，用于接收所述功率放大器根据所述识别信息提供的输出电流，并根据所述输出电流进行充电。
结合第四方面的第一种可能的实现方式，在第四方面的第一种可能的实现方式中，还包括：第一接收模块，用于在所述向所述功率放大器提供自身识别信息之前，接收所述功率放大器发送的模拟电平值，其中，所述模拟电平值用于触发反馈第一类别的第一设备的所述识别信息。
结合第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，还包括：还包括：第二接收模块，用于在所述向所述功率放大器提供自身识别信息之前，接收所述功率放大器发送的D+/D-的连接状态，其中，所述D+/D-的连接状态用于触发反馈第二类别的第二设备的所述识别信息。
结合第四方面的第一种可能的实现方式，在第四方面的第三种可能的实现方式中，还包括：还包括：第三接收模块，用于接收所述功率放大器发送的状态识别信息；第二提供模块，用于向所述功率放大器提供通讯信息，以使所述功率放大器根据所述通讯信息选择电流输出至所述第一设备。
结合第四方面的第一种可能的实现方式，在第四方面的第四种可能的实现方式中，还包括：还包括：检查模块，用于检测D+/D-的连接状态；第一发送模块，用于在检测到D+/D-的连接状态时向所述功率放大器发送充电请求，以使所述功率放大器选择所述充电请求对应的电流输出至所述第二设备。
第四方面，本发明还提供了一种充电系统，包括如上所述的功率放大器和如上所述的设备。
采用本发明实施方式，能够使得设备在使用功率放大器进行取电时，功率放大器能够通过从设备处获取识别信息，并确定设备的类别，从而根据设备的类别对设备输出相应的电流，针对性强，可提高功率放大器对设备进行充电的效率，增强了功率放大器的用户体验。
附图说明
为了更清楚地说明本发明实施方式中的技术方案，下面将对实施方式描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施方式提供的输出充电电流的方法的第一实施方式的流程示意图；
图2是本发明实施方式提供的输出充电电流的方法的第二实施方式的流程示意图；
图3是本发明实施方式提供的功率放大器的结构示意图；
图4是本发明实施方式提供的设备利用功率放大器取电的结构框图。
具体实施方式
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本发明一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。
请参阅图1，为本发明实施方式提供的一种输出充电电流的方法的流程示意图，上述输出充电电流的方法包括以下步骤：
S1：当功率放大器与设备连接时，上述功率放大器从上述设备处获取识别信息。
本实施方式中，上述功率放大器可通过连接线、蓝牙或wifi等方式与设备连接，在此不做限制。下面将以上述功率放大器与上述设备通过连接线的连接方式为例对本发明实施方式提供的输出充电电流的方法及功率放大器进行具体描述。
本发明实施方式中所描述的设备可包括手机，平板电脑，智能游戏机等智能设备，在此不做限制。
本实施方式中，上述功率放大器包括接口，上述接口可为通用串行总线(USB)接口，上述接口可为一个、两个或更多个。具体实施中，上述功率放大器的接口为USB接口，并且上述功率放大器的接口为一个，上述设备通过上述连接线插拔连接于上述接口上，以实现通 讯和/或取电。当然，在其他实施方式中，上述功率放大器还可通过无线感应等方式与上述设备连接，以实现通讯和/或取电。上述功率放大器的接口还可用以接入设备进行数据传输。
在一些可行的实施方式中，本发明实施方式中提到的识别信息可包括设备的类别信息，如当设备为手机时，该识别信息可为苹果手机或安卓手机等。
S2：上述功率放大器根据上述识别信息确定上述设备的类别，并根据上述设备的类别选择输出的电流。
在一些可行的实施方式中，上述功率放大器可预先设定触发信息，进而功率放大器与设备进行连接时，将该触发信息发送至设备上，以触发设备进行识别并输出识别信息至功率放大器，以进一步便于设备类别的确定。具体实现中，本发明实施方式中所描述的触发信息包括：模拟电平值，或者模拟电压值，或者模拟功率值，或者D+/D-端口连接状态。该触发信息具体可根据不同设备进行设定，以提高功率放大器的适用性。上述触发信息仅是举例，而非穷举，包含但不限于上述举例的触发信息，在此不做限制。
S3：上述功率放大器将选择的电流输出到上述设备，上述电流用于对上述设备进行充电。
在一些可行的实施方式中，功率放大器可根据不同设备所需的电流不同而输出相应的电流，对不同的设备进行充电，提高了功率放大器的针对性以及提高了充电效率。例如，若该设备识别为第一设备，则根据第一设备所需的电流，比如该所需的电流为1A，则上述功率放大器输出上述1A电流至上述第一设备上，使得该第一设备能够接收该电流进行充电。例如，若该设备识别为第二设备，则根据第二设备所需的电流，比如该所需的电流为500mA，则上述功率放大器输出500mA至上述第二设备上，使得上述第二设备能够接收该电流进行充电，从而保证充电稳定性。
在一些可行的实施方式中，当功率放大器与设备连接时，功率放大器设定上述触发信息，并且将上述触发信息发送至设备上，根据设备的响应或者反馈的识别信息来识别设备的类别。具体的，功率放大器发送上述触发信息至设备上，并在预设的时间内等待设备响应，比如该预设的时间可为30s或60s，在此预设的时间内，若设备作出响应，并向上述功率放大器反馈识别信息，则上述功率放大器将设备识别为第一类别的设备，功率放大器能够根据第一类别的设备输出相应的电流，进而使得上述第一类别的设备接收该电流实现充电。
若在此预设的时间内，设备并未作出响应，并且未向上述功率放大器反馈识别信息，则上述功率放大器无法识别该设备，进而无法输出电流至设备上，故而不能实现充电。
需要说明的是，在本发明实施方式中，若上述设备无需通过上述功率放大器进行充电，则当上述功率放大器与设备连接时，上述功率放大器能够从设备处获取通讯信息，该通讯信 息可包括：上述设备上的音乐信息或者数据信息等。上述音乐信息可进一步包括：播放上述设备上的音乐或者获取上述设备的音乐列表。上述数据信息可进一步包括：上述设备上的图片信息、视频信息或者其他列表信息等。
采用本发明实施方式，能够使得设备在使用功率放大器进行取电时，功率放大器能够通过从设备处获取识别信息，并确定设备的类别，从而根据设备的类别对设备输出相应的电流，针对性强，可提高功率放大器对设备进行充电的效率，增强了功率放大器的用户体验。
请参阅图2，是本发明实施例提供的输出充电电流的方法的第二实施例流程示意图。本发明实施例所描述的输出充电电流的方法可包括：
S11：当功率放大器与设备连接时，所述功率放大器从所述设备处获取识别信息。
具体实现中，本发明实施例中所描述的功率放大器与设备的连接方式以及获取设备识别信息的具体实现过程可参见上述第一实施例中步骤S1所描述的实现方式，在此不再赘述。
进一步的，在一些可行的实施方式中，在上述功率放大器从上述设备处获取识别信息之前，还可设置模拟电平值，并将上述模拟电平值发送给上述设备，上述模拟电平值用于触发第一类别的设备反馈其识别信息。具体实现中，上述模拟电平值可为第一类别的设备的所需电平值，例如，上述第一类别的设备所需的电平值为2.0V或者2.7V，则该模拟电平值则为2.0V或者2.7V，上述第一类别的设备接收该模拟电平值，并反馈其识别信息至上述功率放大器，使上述功率放大器确认上述设备为第一类别的设备。
在一些可行的实施方式中，在上述功率放大器从上述设备处获取识别信息之前，还可设置D+/D-的连接状态，并将上述D+/D-的连接状态发送给上述设备，上述D+/D-的连接状态用于触发第二类别的设备反馈其识别信息。具体实现中，上述D+/D-的连接状态为第二类别的设备所能识别的连接状态，为了能够获取上述设备的识别信息，上述功率放大器设置D+/D-的连接状态，例如，上述D+/D-的连接状态为已连接，则该第二类别的设备能够接收该连接状态，并反馈其识别信息至上述功率放大器，使功率放大器能够将其识别为第二类别的设备。而当上述D+/D-的连接状态为未连接，则该第二类别的设备不能够接收该连接状态，故而无法反馈识别信息至上述功率放大器，此时，该功率放大器不能识别该设备。
S12：当所述功率放大器接收到所述设备根据所述模拟电平值反馈的识别信息时，确定所述设备为第一类别的第一设备。
在一些可行的实施方式中，上述设备接收该模拟电平值，并发送识别信息至上述功率放大器上。具体的，上述识别信息可包括上述设备的电流信息、通讯信息、数据信息或类别信息。例如，上述设备接收该模拟电平值，并发送其自身的电流信息至功率放大器上，即对上述功率放大器作出响应，则上述功率放大器接收该电流信息，从而将上述设备识别为第一 类别的第一设备。
S13：当所述功率放大器接收到所述设备根据D+/D-的连接状态反馈的识别信息时，确定所述设备为第二类别的第二设备。
在一些可行的实施方式中，上述设备接收该D+/D-的连接状态，并将识别信息反馈至上述功率放大器上。上述识别信息可包括上述设备的电流信息、类别信息或数据信息等。例如，当上述设备接收D+/D-的连接状态，并在上述功率放大器的响应时间内反馈其电流信息至功率放大器上，使得功率放大器能够接收上述电流信息，从而确定上述设备为第二类别的第二设备。当然，上述设备发送的识别信息还可为数据信息，如音频信息、图片信息，这里不做限定。
S14：所述功率放大器向所述第一设备发送状态识别信息，判断所述第一设备是否处于通讯状态。
在一些可行的实施方式中，上述状态识别信息可为音频信息、列表信息电流信息或者数据信息等。例如，当功率放大器向第一设备发送音频信息，并预先设定好在预设的时间内等待上述第一设备响应，以此来判断上述第一设备是否处于可通讯状态，即上述功率放大器是否能够从上述第一设备处获取其通讯信息。
S15：若所述第一设备处于通讯状态，则从所述第一设备处获取通讯信息，并根据所述通讯信息选择电流输出至所述第一设备，所述通讯信息包括音乐信息以及电流信息。
在一些可行的实施方式中，当上述第一设备处于可通讯状态时，上述功率放大器能够从上述第一设备处获取通讯信息，并且能够根据上述通讯信息选择电流输出上述第一设备。上述通讯信息包括：上述通讯信息包括音乐信息以及电流信息，上述音乐信息可包括播放上述第一设备上的音乐或者获取上述第一设备上的音乐列表。上述电流信息为上述第一设备所需的电流信息，如上述第一设备所适应的电流。当上述功率放大器向上述第一设备发送状态识别请求时，若上述第一设备处于通讯状态，则上述第一设备在上述功率放大器预设的响应时间内对上述功率放大器作出响应，上述预设响应时间可为30s或60s等，这里不做限定。上述第一设备对上述功率放大器作出响应后，上述功率放大器能够获取上述第一设备的通讯信息，从而能够获知上述第一设备上的音乐列表或者播放上述第一设备上的音乐；同时，上述功率放大器能够获知上述第一设备所需的电流，从而选择输出相应的电流至上述第一设备上，进而能够实现一边通讯一边为上述第一设备充电。
S16:若所述第一设备未处于通讯状态，则设定所述模拟电平值为所述第一设备的预设电平值，所述模拟电平值触发所述第一设备发送识别信息至所述功率放大器。
在一些可行的实施方式中，在上述功率放大器向上述第一设备发出状态识别请求，并 且在上述功率放大器的预设响应时间内，上述第一设备并未对其作出响应，则可确定上述第一设备处于未通讯状态。由于此时上述第一设备处于没有连接通讯的状态，例如关机状态，故而上述功率放大器并不能获取到上述第一设备上的音乐列表或播放音乐信息，上述功率放大器设定好上述第一设备所需的取电电平，即上述模拟电平值，然后发送上述模拟电平值至上述第一设备，从而触发上述第一设备将识别信息发送至上述功率放大器，以使上述功率放大器能够根据上述识别信息，输出相应的电流至上述第一设备，实现为上述第一设备充电。具体的，上述识别信息可包括上述第一设备所需的电流信息，如上述第一设备所需的电流。
S17：所述功率放大器接收所述识别信息，并选择电流输出至所述第一设备。
在一些可行的实施方式中，上述功率放大器能够在上述第一设备发出识别信息的预设时间内，接收该识别信息，上述预设时间可为5s、10s等，这里不做限定。上述功率放大器通过该识别信息确定第一设备所需的电流值，从而选择相应的电流值输出至第一设备，从而使得第一设备能够进行充电。
需要说明的是，当上述第一设备在未处于通讯状态时，通过上述功率放大器接收识别信息对其输出电流，可使得该第一设备能够接收电流并进入通讯状态，此时，上述功率放大器不会重新对上述第一设备进行状态识别请求，即不获取上述第一设备上的音频信息或列表信息等。用户如需上述功率放大器对上述第一设备进行状态识别请求时，可将上述功率放大器在对上述第一设备输出电流后，重新将上述第一设备与上述功率放大器进行连接，此时，上述功率放大器即可对上述第一设备发出状态识别请求。
S18：所述功率放大器设置D+/D-的连接状态，触发所述第二设备发送充电请求至所述功率放大器。
在一些可行的实施方式中，当上述功率放大器确定上述设备为第二设备后，上述功率放大器设定D+/D-的连接状态，发送至上述第二设备上，并预先设定在预设响应时间内等待上述第二设备响应，上述预设响应时间可为5s或10s等，这里不做限定。上述第二设备接收上述D+/D-的连接状态，将充电请求发送至上述功率放大器，请求进行充电。上述充电请求可为第二设备所需的电流信息，如上述第二设备所需的电流信息为500mA或1A等，这里不做限定。
S19：所述功率放大器接收所述充电请求，并选择电流输出至所述第二设备。
在一些可行的实施方式中，上述功率放大器根据上述第二设备发送的充电请求，获取其所需的电流信息，将该电流输出至第二设备。
需要说明的是，上述功率放大器无需判断上述第二设备的通讯状态，均可对其进行电流输出充电，同时，上述功率放大器能够获知上述第二设备上的数据信息，如音频信息或列 表信息等。
采用本发明实施方式，能够使得设备在使用功率放大器进行取电时，功率放大器能够通过从设备处获取识别信息，并确定设备的类别，从而根据设备的类别对设备输出相应的电流，针对性强，并且充电效率高，增强了功率放大器的用户体验。
请参阅图3，图3是本发明第一实施方式提供的功率放大器的结构示意图。
本实施方式中，上述功率放大器为具有移动电源功能的功率放大器，以实现为上述设备供电的功能。同时，上述功率放大器可为便携式耳机放大器，以便于携带并且保证其具有良好的音质效果。本发明实施方式涉及到的设备可为手机，平板电脑，智能游戏机等智能设备。
如3所示的功率放大器包括：获取模块200、第一设置模块210、第二设置模块220、确定模块230、发送模块240、判断模块250、触发模块260、接收模块270、选择模块280以及输出模块290。
上述获取模块200，用于当上述功率放大器与上述设备连接时，从上述设备处获取识别信息。
在一些可行的实施方式中，上述功率放大器可通过连接线、蓝牙或wifi等方式与设备连接，在此不做限制。
进一步的，上述功率放大器可包括接口，上述接口可为通用串行总线(USB)接口，上述接口可为一个、两个或更多个。具体实施中，上述功率放大器的接口为USB接口，并且上述功率放大器的接口为一个，上述设备通过上述连接线插拔连接于上述接口上，以实现通讯和/或取电。当然，在其他实施方式中，上述功率放大器还可通过无线感应等方式与上述设备连接，以实现通讯和/或取电。上述功率放大器的接口还可用以接入设备进行数据传输。
在一些可行的实施方式中，本发明实施方式中提到的识别信息可包括设备的类别信息，如当设备为手机时，该识别信息可为苹果手机或安卓手机等。
上述第一设置模块210，用于设置模拟电平值，并将模拟电平值发送给上述设备，上述模拟电平值用于触发第一类别的设备反馈其识别信息。
在一些可行的实施方式中，上述第一设置模块210可预先设定触发信息，当功率放大器与设备进行连接时，将该触发信息发送至设备上，以触发设备进行识别并输出识别信息至功率放大器。具体实现中，本发明实施方式中所描述的触发信息包括：模拟电平值，或者模拟电压值，或者模拟功率值，或者D+/D-端口连接状态。该触发信息具体可根据不同设备进行设定，以提高功率放大器的适用性。上述触发信息仅是举例，而非穷举，包含但不限于上述举例的触发信息，在此不做限制。上述模拟电平值可为上述设备所需的电平值。上述识别信 息为上述设备的类别信息。
上述第二设置模块220，用于设置D+/D-的连接状态，并将上述D+/D-的连接状态发送给上述设备，上述D+/D-的连接状态用于触发第二类别的设备反馈其识别信息。
在一些可行的实施方式中，上述D+/D-的连接状态为第二类别的设备所能识别的连接状态，为了能够获取上述设备的识别信息，上述第二设置模块220设置D+/D-的连接状态，例如，上述D+/D-的连接状态为已连接，则该第二类别的设备能够接收该连接状态，并反馈其识别信息至上述功率放大器，使功率放大器能够将其识别为第二类别的设备。而当上述D+/D-的连接状态为未连接，则该第二类别的设备不能够接收该连接状态，故而无法反馈识别信息至上述功率放大器，此时，该功率放大器不能识别该设备。
上述确定模块230，用于根据上述获取模块200获取到的上述识别信息确定上述设备的类别。
具体实施中，上述确定模块230具体用于，当上述功率放大器接收到上述设备根据上述模拟电平值反馈的识别信息时，确定上述设备为第一类别的第一设备；
当上述功率放大器接收到上述设备根据上述D+/D-的连接状态反馈的识别信息时，确定上述设备为第二类别的第二设备。
在一些可行的实施方式中，上述确定模块230可根据上述获取模块200获取到的识别信息，确定上述设备的类别。具体的，上述识别信息可包括上述设备的电流信息、通讯信息、数据信息或类别信息。例如，上述设备接收该模拟电平值，并发送其自身的电流信息至功率放大器上，即对上述功率放大器作出响应，则上述功率放大器能够获取该电流信息，从而将上述设备确定为第一类别的第一设备。
在一些可行的实施方式中，通过上述确定模块230可确定上述设备为第二类别的第二设备。具体的，上述设备接收该D+/D-的连接状态，则可将其自身的识别信息反馈至上述功率放大器上。上述识别信息可包括上述设备的电流信息、类别信息或数据信息等。例如，当上述设备接收D+/D-的连接状态，并在上述功率放大器的响应时间内反馈其电流信息至功率放大器上，使得功率放大器能够获取上述电流信息，从而通过上述确定模块230确定上述设备为第二类别的第二设备。当然，上述设备发送的识别信息还可为数据信息，如音频信息、图片信息，这里不做限定。
发送模块240，用于根据上述第一设置模块210设置的上述模拟电平值发送状态识别信息至上述第一设备。
在一些可行的实施方式中，上述发送模块240可根据上述第一设置模块210设置的模拟电平值，将状态识别信息发送至第一设备上，以进一步确认上述第一设备的状态。
判断模块250，用于根据上述发送模块240发送的上述状态识别信息判断上述第一设备是否处于通讯状态。
在一些可行的实施方式中，上述判断模块250可根据上述状态识别信息判断上述第一设备的通讯状态。具体的，上述状态识别信息可为音频信息、列表信息、电流信息或者数据信息等。例如，当功率放大器向第一设备发送音频信息，并预先设定好在预设的时间内等待上述第一设备响应，通过上述判断模块250来判断上述第一设备是否处于可通讯状态，即上述功率放大器是否能够从上述第一设备处获取其通讯信息。
在一些可行的实施方式中，当上述判断模块250判断上述第一设备处于可通讯状态时，上述功率放大器能够从上述第一设备处获取通讯信息，并且能够根据上述通讯信息选择电流输出上述第一设备。上述通讯信息包括：上述通讯信息包括音乐信息以及电流信息，上述音乐信息可包括播放上述第一设备上的音乐或者获取上述第一设备上的音乐列表。上述电流信息为上述第一设备所需的电流信息，如上述第一设备所适应的电流。当上述功率放大器向上述第一设备发送状态识别请求时，若上述第一设备处于通讯状态，则上述第一设备在上述功率放大器预设的响应时间内对上述功率放大器作出响应，上述预设响应时间可为30s或60s等，这里不做限定。上述第一设备对上述功率放大器作出响应后，上述功率放大器能够获取上述第一设备的通讯信息，从而能够获知上述第一设备上的音乐列表或者播放上述第一设备上的音乐；同时，上述功率放大器能够获知上述第一设备所需的电流，从而选择输出相应的电流至上述第一设备上，进而能够实现一边通讯一边为上述第一设备充电。
在一些可行的实施方式中，在上述发送模块240向上述第一设备发出状态识别请求，并且在预设响应时间内，上述第一设备并未对其作出响应，则可上述判断模块250判断上述第一设备处于未通讯状态。由于此时上述第一设备处于没有连接通讯的状态，例如关机状态，故而上述功率放大器并不能获取到上述第一设备上的音乐列表或播放音乐信息，上述第一设置模块210设定好上述第一设备所需的取电电平，即上述模拟电平值，然后通过发送模块240发送上述模拟电平值至上述第一设备，从而触发上述第一设备将识别信息发送至上述功率放大器，以使上述功率放大器能够根据上述识别信息，输出相应的电流至上述第一设备，实现为上述第一设备充电。具体的，上述识别信息可包括上述第一设备所需的电流信息，如上述第一设备所需的电流。
需要说明的是，当上述第一设备在未处于通讯状态时，通过上述功率放大器接收识别信息对其输出电流，可使得该第一设备能够接收电流并进入通讯状态，此时，上述功率放大器不会重新对上述第一设备进行状态识别请求，即不获取上述第一设备上的音频信息或列表信息等。用户如需上述功率放大器对上述第一设备进行状态识别请求时，可将上述功率放大 器在对上述第一设备输出电流后，重新将上述第一设备与上述功率放大器进行连接，此时，上述功率放大器即可对上述第一设备发出状态识别请求。
触发模块260，用于根据上述第二设置模块220设置的上述D+/D-的连接状态触发上述第二设备发送充电请求至上述功率放大器。
在一些可行的实施方式中，上述触发模块260用以触发上述第二设备发送充电请求至功率放大器。具体实施中，当上述确定模块230确定上述设备为第二设备后，上述第二设置模块220设定D+/D-的连接状态，通过上述发送模块240发送至上述第二设备上，并预先设定在预设响应时间内等待上述第二设备响应，上述预设响应时间可为5s或10s等，这里不做限定。上述第二设备接收上述D+/D-的连接状态，在上述触发模块260的触发下，将充电请求发送至上述功率放大器，请求进行充电。上述充电请求可为第二设备所需的电流信息，如上述第二设备所需的电流信息为500mA或1A等，这里不做限定。
接收模块270，用于接收上述第二设备发送的上述充电请求。
在一些可行的实施方式中，上述接收模块270接收上述第二设备发送的充电请求，获取其电流信息，以能够确定上述第二设备所需的电流。
选择模块280，用于根据上述确定模块230确定的上述设备的类别选择输出的电流。
在一些可行的实施方式中，上述选择模块280根据上述设备的类别，选择上述设备所适应的电流。
输出模块290，用于将上述选择模块290选择的电流输出至上述设备。
在一些可行的实施方式中，上述输出模块290将电流输出至上述设备，以对上述设备进行充电。
请参阅图4，为本发明实施方式提供的上述设备采用上述功率放大器取电的结构示意图。本实施方式中，上述功率放大器通过与上述设备连接，并从上述设备处获取识别信息，以确定上述设备的类别，然后根据上述设备的类别输出上述设备所需的电流，以达到为不同类别设备进行充电的目的。具体的，如图3所示，上述功率放大器可采用集成有USB三刀双掷开关的芯片，以识别不同的设备所需的不同取电电流。上述功率放大器内设置有三种接口，分别为第一接口、第二接口以及第三接口，上述三种接口包括三种充电机制，以供不同类别的设备进行取电。可以理解的是，在其他实施方式中，上述功率放大器还可采用集成有双刀双掷开关的芯片，如TPS2514芯片。
采用本发明实施方式，能够使得设备在使用功率放大器进行取电时，功率放大器能够通过从设备处获取识别信息，并确定设备的类别，从而根据设备的类别对设备输出相应的电流，针对性强，可提高功率放大器对设备进行充电的效率，增强了功率放大器的用户体验。
以上上述的实施方式，并不构成对该技术方案保护范围的限定。任何在上述实施方式的精神和原则之内所作的修改、等同替换和改进等，均应包含在该技术方案的保护范围之内。

Claims (27)

  1. 一种输出充电电流的方法，其特征在于，包括以下步骤：
    当与设备连接时，从所述设备处获取识别信息；
    根据所述识别信息确定所述设备的类别，并根据所述设备的类别选择输出的电流；
    将选择的电流输出到所述设备以对所述设备进行充电。
  2. 如权利要求1所述的方法，其特征在于，在从所述设备处获取识别信息之前，还包括：
    设置模拟电平值，并将所述模拟电平值发送给所述设备，其中，所述模拟电平值用于触发第一类别的设备反馈其识别信息。
  3. 如权利要求1所述的方法，其特征在于，在从所述设备处获取识别信息之前，还包括：
    设置D+/D-的连接状态，并将所述D+/D-的连接状态发送给所述设备，其中，所述D+/D-的连接状态用于触发第二类别的设备反馈其识别信息。
  4. 如权利要求2所述的方法，其特征在于，所述根据所述识别信息确定所述设备的类别，具体包括：
    当接收到所述设备根据所述模拟电平值反馈的识别信息时，确定所述设备为第一类别的第一设备。
  5. 如权利要求3所述的方法，其特征在于，所述根据所述识别信息确定所述设备的类别，具体包括：
    当接收到所述设备根据上述D+/D-的连接状态反馈的识别信息时，确定所述设备为第二类别的第二设备。
  6. 如权利要求4所述的方法，其特征在于，所述根据所述识别信息确定所述设备的类别，并根据所述设备的类别选择输出的电流包括：
    向所述第一设备发送状态识别信息，并判断所述第一设备是否处于通讯状态；
    若所述第一设备处于通讯状态，则从所述第一设备处获取通讯信息，并根据所述通讯信息选择电流输出至所述第一设备。
  7. 如权利要求6所述的方法，其特征在于，还包括：
    若所述第一设备未处于通讯状态，则设定所述模拟电平值为所述第一设备的预设电平值，其中，所述模拟电平值用于触发所述第一设备发送识别信息至功率放大器；
    接收所述第一设备发送的所述识别信息，并选择电流输出至所述第一设备。
  8. 如权利要求6所述的方法，其特征在于，所述通讯信息包括音乐信息以及电流信息。
  9. 如权利要求5所述的方法，其特征在于，所述功率放大器根据所述设备的类别选择输出的电流，包括：
    设置D+/D-的连接状态，触发所述第二设备发送充电请求至所述功率放大器；
    接收所述充电请求，并选择所述充电请求对应的电流输出至所述第二设备。
  10. 一种功率放大器，其特征在于，包括：
    获取模块，用于当功率放大器与设备连接时，从所述设备处获取到识别信息；
    确定模块，用于根据所述获取模块获取到的所述识别信息确定所述设备的类别；
    选择模块，用于根据所述确定模块确定的所述设备的类别选择输出的电流；以及
    输出模块，用于将所述选择模块选择的电流输出至所述设备。
  11. 如权利要求10所述的功率放大器，其特征在于，还包括：
    第一设置模块，用于设置模拟电平值，并将模拟电平值发送给所述设备，其中，所述模拟电平值用于触发第一类别的设备反馈其识别信息。
  12. 如权利要求10所述的功率放大器，其特征在于，还包括：
    第二设置模块，用于设置D+/D-的连接状态，并将上述D+/D-的连接状态发送给所述设备，所述D+/D-的连接状态用于触发第二类别的设备反馈其识别信息。
  13. 如权利要求11所述的功率放大器，其特征在于，当接收到所述设备根据所述第一设置模块设定的所述模拟电平值反馈的识别信息时，所述确定模块确定所述设备为第一类别的第一设备。
  14. 如权利要求12所述的功率放大器，其特征在于，当接收到所述设备根据所述第二设置模块设置的所述D+/D-的连接状态反馈的识别信息时，所述确定模块确定所述设备为第二类别的第二设备。
  15. 如权利要求13所述的功率放大器，其特征在于，还包括：
    发送模块，用于根据所述第一设置模块设置的所述模拟电平值发送状态识别信息至所述第一设备；以及
    判断模块，用于根据所述发送模块发送的所述状态识别信息判断所述第一设备是否处于通讯状态。
  16. 如权利要求14所述的功率放大器，其特征在于，还包括：
    触发模块，用于根据所述第二设置模块设置的所述D+/D-的连接状态触发所述第二设备发送充电请求至所述功率放大器；以及
    接收模块，用于接收所述第二设备发送的所述充电请求。
  17. 一种输出充电电流的方法，其特征在于，包括以下步骤：
    当与功率放大器连接时，向所述功率放大器提供自身识别信息；
    接收所述功率放大器根据所述识别信息提供的输出电流，并根据所述输出电流进行充电。
  18. 如权利要求17所述的方法，其特征在于，在所述向所述功率放大器提供自身识别信息之前，还包括：
    接收所述功率放大器发送的模拟电平值，其中，所述模拟电平值用于触发反馈第一类别的第一设备的所述识别信息。
  19. 如权利要求17所述的方法，其特征在于，在所述向所述功率放大器提供自身识别信息之前，还包括：
    接收所述功率放大器发送的D+/D-的连接状态，其中，所述D+/D-的连接状态用于触发反馈第二类别的第二设备的所述识别信息。
  20. 如权利要求18所述的方法，其特征在于，还包括：
    接收所述功率放大器发送的状态识别信息；
    向所述功率放大器提供通讯信息，以使所述功率放大器根据所述通讯信息选择电流输出至所述第一设备。
  21. 如权利要求19所述的方法，其特征在于，还包括：
    检测D+/D-的连接状态，并在检测到D+/D-的连接状态时向所述功率放大器发送充电请求，以使所述功率放大器选择所述充电请求对应的电流输出至所述第二设备。
  22. 一种设备，其特征在于，包括：
    第一提供模块，用于当与功率放大器连接时，向所述功率放大器提供自身识别信息；
    充电模块，用于接收所述功率放大器根据所述识别信息提供的输出电流，并根据所述输出电流进行充电。
  23. 如权利要求22所述的设备，其特征在于，还包括：
    第一接收模块，用于在所述向所述功率放大器提供自身识别信息之前，接收所述功率放大器发送的模拟电平值，其中，所述模拟电平值用于触发反馈第一类别的第一设备的所述识别信息。
  24. 如权利要求22所述的设备，其特征在于，还包括：
    第二接收模块，用于在所述向所述功率放大器提供自身识别信息之前，接收所述功率放大器发送的D+/D-的连接状态，其中，所述D+/D-的连接状态用于触发反馈第二类别的第二设备的所述识别信息。
  25. 如权利要求23所述的设备，其特征在于，还包括：
    第三接收模块，用于接收所述功率放大器发送的状态识别信息；
    第二提供模块，用于向所述功率放大器提供通讯信息，以使所述功率放大器根据所述通讯信息选择电流输出至所述第一设备。
  26. 如权利要求24所述的设备，其特征在于，还包括：
    检查模块，用于检测D+/D-的连接状态；
    第一发送模块，用于在检测到D+/D-的连接状态时向所述功率放大器发送充电请求，以使所述功率放大器选择所述充电请求对应的电流输出至所述第二设备。
  27. 一种充电系统，其特征在于，包括如权利要求10-16任一项所述的功率放大器和如权利要求22-26任一项所述的设备。
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