WO2019154368A1 - Appareil de charge, appareil de commande de charge, dispositif terminal et procédé de charge - Google Patents

Appareil de charge, appareil de commande de charge, dispositif terminal et procédé de charge Download PDF

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Publication number
WO2019154368A1
WO2019154368A1 PCT/CN2019/074592 CN2019074592W WO2019154368A1 WO 2019154368 A1 WO2019154368 A1 WO 2019154368A1 CN 2019074592 W CN2019074592 W CN 2019074592W WO 2019154368 A1 WO2019154368 A1 WO 2019154368A1
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WIPO (PCT)
Prior art keywords
charging
voltage
module
data communication
identification module
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PCT/CN2019/074592
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English (en)
Chinese (zh)
Inventor
陈涛
刘世伟
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中兴通讯股份有限公司
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Publication of WO2019154368A1 publication Critical patent/WO2019154368A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0077—
    • H02J7/025—

Definitions

  • the present application relates to, but is not limited to, the field of charging technology, for example, to a charging device, a charging control device, a terminal device, and a charging method.
  • wireless charging technology is increasingly favored by consumers.
  • the current wireless charging chip outputs only the power and ground, and there are no D+ and D- signals for data communication, which makes it impossible to handle the charging method requiring data communication, and cannot adapt to the fast charging protocol. That is, current wireless charging chips cannot support fast charging. As a result, the wireless charging efficiency of the terminal device is low and the charging speed is slow, resulting in poor consumer experience.
  • the embodiment of the present application provides a charging device, a charging control device, a terminal device, and a charging method, which can support fast wireless charging.
  • an embodiment of the present application provides a charging apparatus, including: a wireless charging module, a voltage output switching module, a fast charging identification module, and a charging management module; and the voltage output ends of the wireless charging module are respectively switched with the voltage output
  • the input end of the module is electrically connected to the input end of the fast charge identification module; the output end of the voltage output switching module is electrically connected to the voltage input end and the voltage detecting end of the charging management module respectively; the fast charge identification module
  • the first data communication end is electrically connected to the first data communication end of the charging management module, and the second data communication end of the fast charge identification module is electrically connected to the second data communication end of the charging management module;
  • the control signal output end of the fast charge identification module is electrically connected to the control end of the voltage output switching module.
  • the embodiment of the present application provides a charging control device, which is adapted to be electrically connected between a wireless charging module and a charging management module, where the charging control device includes: a voltage output switching module and a fast charging identification module; The input end of the output switching module is electrically connected to the voltage output end of the wireless charging module, and the output end of the voltage output switching module is electrically connected to the voltage input end and the voltage detecting end of the charging management module, respectively.
  • the first data communication end of the identification module is electrically connected to the first data communication end of the charging management module, and the second data communication end of the fast charge identification module is electrically connected to the second data communication end of the charging management module;
  • the control signal output end of the fast charge identification module is electrically connected to the control end of the voltage output switching module.
  • an embodiment of the present application provides a terminal device, including the charging device provided by the first aspect.
  • the embodiment of the present application provides a charging method, which is applied to a charging device, where the charging device includes a wireless charging module, a voltage output switching module, a fast charging identification module, and a charging management module; a data communication end and a second data communication end are respectively electrically connected to the charging management module; the charging method includes: acquiring, by the voltage output switching module, an available charging voltage signal generated by the wireless charging module, and The charging voltage signal is output to the charging management module; the voltage value of the charging voltage signal is detected by the charging management module; and the first data communication terminal and the second data communication are controlled by the fast charging identification module After the terminal is disconnected, the second data communication end of the fast charge identification module and the second data communication of the fast charge identification module are adjusted by the charging management module according to the supported fast charging protocol and the voltage value of the charging voltage signal. The voltage value of the terminal is to the corresponding charging mode.
  • an embodiment of the present application provides a charging control method, which is applied to a charging control device, where the charging control device includes a voltage output switching module and a fast charging identification module, and the charging control device is adapted to be electrically connected to the wireless charging module.
  • the first data communication end and the second data communication end of the fast charge identification module are respectively adapted to be electrically connected to the charge management module; and the charge control method includes: switching by the voltage output The module acquires an available charging voltage signal generated by the wireless charging module, and outputs the charging voltage signal to the charging management module; and controls, by the fast charging identification module, the first data communication end of the fast charging identification module and The second data communication end of the fast charge identification module is shorted or disconnected, so that the charging management module enters a corresponding charging mode by adjusting voltage values of the first data communication end and the second data communication end, and utilizes The charging voltage signal is charged.
  • FIG. 1 is a schematic diagram of the principle of a charging device according to an embodiment of the present application.
  • FIG. 2 is a first diagram of a charging device according to an embodiment of the present application.
  • FIG. 3 is a second diagram of a charging device according to an embodiment of the present application.
  • FIG. 4 is a flowchart of a charging method provided by an embodiment of the present application.
  • FIG. 5 is a flowchart 1 of an example of a charging method according to an embodiment of the present application.
  • FIG. 6 is a second flowchart of an example of a charging method provided by an embodiment of the present application.
  • the embodiment of the present application provides a charging device, a charging control device, a terminal device, and a charging method, which can support fast wireless charging.
  • FIG. 1 is a schematic diagram of the principle of a charging device according to an embodiment of the present application.
  • the charging device provided in this embodiment includes: a wireless charging module, a voltage output switching module, a fast charging identification module, and a charging management module; wherein the wireless charging module and the voltage output switching module and the fast charging identification module respectively The electrical connection; the voltage output switching module is electrically connected to the fast charging identification module and the charging management module respectively; the fast charging identification module is electrically connected to the charging management module.
  • the voltage output end (VOUT) of the wireless charging module is electrically connected to the input end of the voltage output switching module and the input end of the fast charge identification module (V_IN), respectively, and the output end of the voltage output switching module and the charging management respectively.
  • the voltage input terminal (Vcharge_in) of the module is electrically connected to the voltage detection terminal (Vsense);
  • the fast charge identification module comprises a first data communication terminal (D+) and a second data communication terminal (D-), wherein the first data communication terminal D+
  • the first data communication terminal D+ of the charging management module is electrically connected, and the second data communication terminal D of the fast charging identification module is electrically connected to the second data communication terminal D- of the charging management module.
  • the control signal output end of the fast charge identification module is electrically connected to the control end of the voltage output switching module (for example, EN1, EN2).
  • the charging device includes: a wireless charging module, a voltage output switching module, a fast charging identification module, and a charging management module; the voltage output end of the wireless charging module and the input end of the voltage output switching module and the fast charging identification module respectively The input end is electrically connected; the output end of the voltage output switching module is electrically connected to the voltage input end and the voltage detecting end of the charging management module respectively; the first data communication end of the fast charge identification module and the first data communication end of the charging management module are electrically connected The second data communication end of the fast charge identification module is electrically connected to the second data communication end of the charge management module; the control signal output end of the fast charge identification module is electrically connected to the control end of the voltage output switching module.
  • the first voltage signal outputted by the wireless charging module is controlled by the voltage output switching module
  • the available charging voltage signal is outputted to the charging management module
  • the first data of the fast charging identification module is controlled by the fast charging identification module.
  • the charge management module can include a charge management chip that supports a fast charge protocol (eg, fast charge protocol QC 2.0, QC 3.0, etc.).
  • a fast charge protocol eg, fast charge protocol QC 2.0, QC 3.0, etc.
  • the wireless charging module, the voltage output switching module, and the fast charging identification module may be assembled as a whole and then used together with the charging management module; or, the voltage output switching module and the fast charging identification module may be performed as a whole. Assembly, and then with the wireless charging module and charging management module.
  • this application is not limited thereto. It should be noted that the setting positions of the wireless charging module, the voltage output switching module, the fast charging identification module, and the charging management module in use are not limited as long as the foregoing connection relationship exists with each other and the function of the present application can be realized. can.
  • the wireless charging module is configured to receive the sensing signal and convert the sensing signal into a first voltage signal.
  • the wireless charging module may include: a wireless charging receiving coil, a wireless charging matching capacitor, and a wireless charging converter; wherein the wireless charging receiving coil is electrically connected to the wireless charging matching capacitor, the wireless charging matching capacitor and the wireless charging converter
  • the wireless charging receiving coil is configured to receive a sensing signal generated by a wireless charging stand (not shown); and the wireless charging converter is configured to convert the sensing signal into a first voltage signal.
  • the voltage output terminal (VOUT) of the wireless charging converter is electrically connected to the input end of the voltage output switching module and the input terminal (V_IN) of the fast charge identification module, respectively.
  • the wireless charging converter can output the obtained first voltage signal to the voltage output switching module and the fast charging identification module.
  • the fast charge identification module starts to work after receiving the first voltage signal. In other words, the fast charge identification module starts to work after the wireless charging module is started. If the wireless charging module does not start, it stops working.
  • the wireless charging receiving coil may be wound by a copper wire or a Flexible Printed Circuit (FPC), and coupled to the wireless charging stand to receive high frequency electromagnetic waves generated by the wireless charging stand.
  • the wireless charging matching capacitor may include a capacitor C1 and a capacitor C2; wherein the capacitance values of the capacitors C1 and C2 may be calculated according to a standard calculation method of the wireless charging resonant capacitor. It should be noted that the standard calculation method of the wireless charging resonant capacitor can adopt a calculation method commonly used by those skilled in the art, and thus will not be described herein.
  • the wireless charging matching capacitor may include a plurality of series-parallel capacitors. However, this application is not limited thereto.
  • the wireless charging converter may be configured to convert the received sensing signal (eg, an alternating current electromagnetic sensing signal) into a direct current voltage signal (corresponding to the first voltage signal described above) and output to the voltage output terminal (VOUT) to Voltage output switching module and fast charge identification module.
  • the wireless charging converter can output a 5V, 9V or 12V DC voltage signal.
  • this application is not limited thereto.
  • the wireless charging converter supports high-voltage wireless charging such as 9V or 12V, which can suppress the voltage drop by reducing the output load current and increasing the output voltage to keep the output power constant and avoid triggering undervoltage lockout. (Under Voltage Lock Out, UVLO) cut-off charging.
  • the voltage output switching module is configured to acquire an available charging voltage signal generated by the wireless charging module.
  • the voltage output switching module may output an available charging voltage signal to the charging management module based on the received first voltage signal.
  • the wireless charging converter supports high-voltage output. If a higher voltage signal (for example, 9V or 12V) output from the wireless charging converter is directly provided to the charging management module, the charging management module may consider that the current non-standard charging is adopted. The device causes the normal charging to be impossible.
  • the charging management module may trigger Over Voltage Protection (OVP) due to high voltage, and the charging is off, that is, the voltage signal generated by the wireless charging converter is not used. Charge it.
  • OVP Over Voltage Protection
  • the charging device implements switching control of the first voltage signal output by the wireless charging module by setting a voltage output switching module, so that the output voltage value of the charging management module is set to a preset value (for example). , 5V) of the second voltage signal, and then output the first voltage signal, to ensure that the charge management module can support the use of higher voltage into the fast charge mode.
  • a voltage output switching module so that the output voltage value of the charging management module is set to a preset value (for example). , 5V) of the second voltage signal, and then output the first voltage signal, to ensure that the charge management module can support the use of higher voltage into the fast charge mode.
  • the voltage output switching module may be configured to output an available charging voltage signal to the charging management module based on the received first voltage signal by first converting the first voltage signal into a voltage value setting
  • the second voltage signal of the value is output to the charging management module as the first charging voltage signal, and is further configured to output the first voltage signal as the second charging voltage signal to the charging management module.
  • the second voltage signal as the set value may be 5V. However, this application is not limited thereto.
  • the voltage output switching module outputs a first voltage signal or a second voltage signal to a voltage input terminal (Vcharge_in) and a voltage detecting terminal (Vsense) of the charge management module.
  • the charging management module receives the first voltage signal or the second voltage signal output by the voltage output switching module through the voltage input terminal (Vcharge_in), and supplies the load to the back end load unit (for example, a battery) for charging; the charging management module passes the voltage detection
  • the terminal (Vsense) detects the voltage value of the charging voltage signal currently output by the voltage output switching module.
  • the voltage value detected by the charging management module is the current actual output voltage value of the wireless charging module
  • the charging management module detects the The voltage value is a set value (for example, 5V).
  • the fast charge identification module is configured to control the first data communication terminal D+ and the second data communication terminal D- to be shorted or disconnected.
  • the fast charge identification module can include a fast charge identification chip that supports a fast charge protocol.
  • the present application is not limited to the type of fast charge identification chip, for example, a fast charge identification chip supporting the fast charge protocol QC2.0 or QC3.0. It should be noted that the fast charge identification module and the charge management module need to support the same fast charging protocol.
  • the fast charge identification module may be configured to control the first data communication terminal D+ and the second data communication terminal D- to be short-circuited or disconnected according to the detected voltage value of the first data communication terminal D+.
  • the fast charge identification module may be configured to control the first data communication terminal D+ and the second data communication terminal D- to be short-circuited in response to detecting that the voltage value of the first data communication terminal D+ is equal to 0;
  • the voltage value of a data communication terminal D+ is in accordance with the disconnection condition required in the supported fast charging protocol, and the first data communication terminal D+ and the second data communication terminal D- are controlled to be disconnected.
  • the charging management module may be configured to detect a voltage value of the charging voltage signal output by the voltage output switching module, and after the fast charging identification module controls the first data communication terminal D+ and the second data communication terminal D- to be disconnected, Adjusting the voltage values of the first data communication terminal D+ of the fast charge identification module and the second data communication terminal D- of the fast charge identification module to the corresponding charging mode according to the supported fast charging protocol and the detected voltage value.
  • the charging management module may be configured to: after the fast charge identification module controls the first data communication terminal D+ and the second data communication terminal D- to be disconnected, the voltage value detected in response to the charging management module is greater than a fixed value (for example, 5V), adjusting the voltage values of the first data communication terminal D+ and the second data communication terminal D- to the fast charging mode according to the supported fast charging protocol; the voltage value detected in response to the charging management module is equal to the setting
  • the fixed value (for example, 5V) adjusts the voltage value of the first data communication terminal D+ of the fast charge identification module and the second data communication terminal D- of the fast charge identification module to the set value charging mode according to the supported fast charging protocol ( For example, 5V charging mode).
  • the fast charging identification module and the charging management module support the fast charging protocol QC2.0 as an example to illustrate the process of entering the fast charging mode.
  • the charging management module can load a voltage of 0.325V on the first data communication terminal D+ and maintain more than 1.25 seconds; when the fast charge identification module detects the first data communication After the voltage value on the terminal D+ is 0.325V and is maintained for more than 1.25 seconds, the short circuit of the first data communication terminal D+ and the second data communication terminal D- may be disconnected, at the first data communication terminal D+ and the second data communication terminal.
  • the voltage value on the second data communication terminal D- is no longer consistent with the voltage value on the first data communication terminal D+, that is, the voltage value on the second data communication terminal D- begins to decrease.
  • the charge management module detects that the voltage value on the second data communication terminal D- starts to decrease from 0.325V and maintains for more than 1 millisecond, the voltage value detected by the voltage detection terminal (Vsense) can be read, and according to the detection Voltage value adjustment fast charge identification mode
  • the voltage value of the first data communication terminal D+ of the block and the second data communication terminal D- of the fast charge identification module for example, the currently detected voltage value is 9V (ie, the voltage value of the first voltage signal output by the wireless charging module) 9V)
  • the charging management module can adjust the voltage value of the first data communication terminal D+ of the fast charge identification module to be 3.3V
  • the voltage value of the second data communication terminal D- of the fast charge identification module is 0.6V, that is, Charge the battery in the fast charge mode.
  • the voltage output switching module may be configured to switch the first charging voltage signal and the second charging voltage signal output to the charging management module under the control of the fast charging identification module; or in the fast charging identification module and the wireless Under the control of the charging module, the first charging voltage signal and the second charging voltage signal output to the charging management module are switched.
  • the voltage output switching module may include: a load switch and a voltage conversion unit; the control signal output end of the fast charge identification module includes a first control signal output end and a Two control signal output terminals;
  • the input end of the load switch is electrically connected to the voltage output end (VOUT) of the wireless charging module, and the control end (EN1) of the load switch is electrically connected to the first control signal output end of the fast charge identification module;
  • the input end of the voltage conversion unit Electrically connected to the voltage output terminal (VOUT) of the wireless charging module, and the control terminal (EN2) of the voltage conversion unit is electrically connected to the second control signal output end of the fast charge identification module;
  • the load switch can be configured to enter a conduction state under the first control signal output by the fast charge identification module, and output the first voltage signal as a second charging voltage signal to the charging management module;
  • the voltage conversion unit can be configured to enter the startup state under the second control signal output by the fast charge identification module, and convert the first voltage signal into the second voltage signal, and output the same as the first charging voltage signal to the charging management module.
  • the output end of the load switch and the output end of the voltage conversion unit are respectively electrically connected to the voltage input terminal (Vcharge_in) and the voltage detection terminal (Vsense) of the charge management module.
  • the fast charge identification module can be configured to control the voltage output switching module to output the second voltage signal as the first charging voltage signal after controlling the first data communication terminal D+ and the second data communication terminal D- to be shorted.
  • the charging management module sends the first voltage signal as a second charging voltage signal to the charging management module after controlling the first data communication terminal D+ and the second data communication terminal D- to be disconnected.
  • the fast charge identification module can be configured to provide a first control signal to the load switch to control the load switch to enter an on or off state; a second control signal is provided to the voltage conversion unit to control the voltage conversion unit to enter the startup Or the off state, and then the control voltage output switching module outputs the first voltage signal or the second voltage signal.
  • the load switch enters an on state, and if the first control signal is at a low level, the load switch enters an off state; if the second control signal is at a high level, The voltage conversion unit enters a startup state, and if the second control signal is at a low level, the voltage conversion unit enters a shutdown state; or, if the first control signal is at a low level, the load switch enters an on state, if the first control When the signal is high, the load switch enters the off state; if the second control signal is low, the voltage conversion unit enters the startup state, and if the second control signal is high, the voltage conversion unit enters the off state.
  • the load switch may include a metal-oxide-semiconductor field-effect transistor (MOS), an analog switch, or the like that can be controlled to turn on and off by an external enable signal.
  • MOS metal-oxide-semiconductor field-effect transistor
  • the voltage conversion unit may include a DC-DC converter.
  • the voltage conversion unit may include a 5V DC converter, that is, after startup, the output is a 5V voltage signal.
  • this application is not limited thereto.
  • an anti-backflow device D1 is connected to the output end of the voltage conversion unit for preventing a high voltage signal such as 9V, 12V, etc. from being poured into the voltage conversion unit when the load switch is turned on.
  • the voltage conversion unit may include a device having an anti-backflow function without electrically connecting an anti-backflow device to the output of the voltage conversion unit.
  • the voltage value of the first voltage signal output by the wireless charging module is 5V, 9V or 12V
  • the voltage value of the second voltage signal output by the voltage converting unit is 5V.
  • the load switch is turned on, and when the second control signal output by the fast charge recognition module is at a high level, the voltage conversion unit is activated.
  • the wireless charging module supplies power to the fast charging identification module, so that the fast charging identification module starts to work; the fast charging identification module controls the first data communication terminal D+ and the second.
  • the data communication terminal D- is short-circuited, and outputs a low-level first control signal and a high-level second control signal.
  • the fast charge identification module detects that the voltage value of the first data communication terminal D+ changes, and the voltage value of D+ satisfies the disconnection condition required in the fast charging protocol, controlling the first data communication terminal D+ and the second data communication terminal D - Disconnect, and output a high level first control signal and a low level second control signal.
  • the load switch directly transmits the first voltage signal output by the wireless charging module to the charging management module.
  • the charging management module may adjust the fast charging identification module according to the fast charging protocol and the detected voltage value of the first voltage signal.
  • the voltage value of a data communication terminal D+ and the second data communication terminal D- of the fast charge identification module for example, detecting a voltage value of 9V, adjusts the D+, D- voltage values to the fast charging mode.
  • the charge management module can charge the battery in the fast charge mode.
  • the following condition is required: when the first control signal is at a high level, the second control signal is at a low level. When the first control signal is low level, the second control signal is at a high level; and there is a time difference in the switching process of the first control signal and the second control signal to ensure voltage stability during the switching transition.
  • the second control signal when the voltage conversion unit is required to output a 5V voltage signal, the second control signal is at a high level, and the first control signal is at a low level; when a 9V or 12V voltage signal is required to be output, the first control signal is a high level Ping, the second control signal is low, so that the load switch is turned on, and the voltage conversion unit is turned off, that is, the operation is stopped.
  • the load switch and voltage conversion unit can be turned on when the control signal is low.
  • the voltage output switching module may include: a load switch and a voltage conversion unit; wherein an input end of the load switch is electrically connected to a voltage output terminal (VOUT) of the wireless charging module, The output end of the load switch is electrically connected to the voltage input end (Vcharge_in) and the voltage detecting end (Vsense) of the charging management module, and the control end (EN1) of the load switch is electrically connected to the first control signal output end of the fast charge identification module;
  • the input end of the voltage conversion unit is electrically connected to the voltage output end (VOUT) of the wireless charging module, and the output end of the voltage conversion unit is electrically connected to the voltage input end (Vcharge_in) and the voltage detecting end (Vsense) of the charging management module respectively, and the voltage is converted.
  • the control terminal (EN2) of the unit is electrically connected to the input/output (IO) control terminal of the wireless charging module.
  • the load switch can be configured to enter an on state under the first control signal output by the fast charge identification module, and output the first voltage signal as a second charging voltage signal to the charge management module;
  • the voltage conversion unit can be configured In order to enter the startup state under the second control signal output by the wireless charging module, the first voltage signal is converted into a second voltage signal, and is output as a first charging voltage signal to the charging management module.
  • the fast charge identification module and the wireless charging module jointly control the voltage output switching module to output the first voltage signal or the second voltage signal.
  • the fast charge identification module is configured to provide a first control signal to the load switch to control the load switch to enter an on or off state;
  • the wireless charging module is configured to provide a second control signal to the voltage conversion unit to control the voltage conversion unit Enter the startup or shutdown state.
  • the load switch if the first control signal is at a high level, the load switch enters an on state, and if the first control signal is at a low level, the load switch enters an off state; if the second control signal is at a high level, Then, the voltage conversion unit enters a startup state, and if the second control signal is at a low level, the voltage conversion unit enters a shutdown state, that is, stops working.
  • the control end of the voltage conversion unit is electrically connected to the IO control end of the wireless charging module.
  • the charging device provided in this example may further include: a control switch, and the control switch and the IO control end and the ground end of the wireless charging module respectively. (Ground, GND) and the first control signal output of the fast charge identification module are electrically connected.
  • the control switch may be configured to control the second control signal to switch to a low level in response to the first control signal output by the fast charge recognition module being at a high level, so that the voltage conversion unit enters a closed state.
  • the second control signal is provided by a wireless charging converter.
  • the wireless charging converter may include an IO control terminal for outputting a wireless charging state signal; when the wireless charging converter is started, the output of the IO control terminal is at a high level, so that the voltage converting unit enters an activated state.
  • the charging apparatus of this embodiment may further include: a universal serial bus (USB) port, and the USB port is electrically connected to the charging management module.
  • the voltage output terminal (VBUS) of the USB port is electrically connected to the voltage input terminal (Vcharge_in) and the voltage detecting terminal (Vsense) of the charging management module respectively, and the data communication terminal D+ of the USB port and the data communication terminal D+ of the charging management module are respectively connected.
  • the data communication terminal D of the USB port is electrically connected to the data communication terminal D- of the charging management module.
  • the USB port can include a terminal USB connector.
  • the charging device can support USB charging through the USB port, thereby providing two charging modes of USB charging and wireless charging, and can automatically switch between two charging modes; wherein, when the wireless charging module is activated, the wireless charging module can be accessed. Charging mode, when the USB port is activated, you can enter the USB charging mode.
  • this application is not limited thereto.
  • FIG. 4 is a flowchart of a charging method provided by an embodiment of the present application.
  • the charging method provided in this embodiment is applied to a charging device, and the charging device includes a wireless charging module, a voltage output switching module, a fast charging identification module, and a charging management module; and a first data communication end of the fast charging identification module And the second data communication end is electrically connected to the charging management module respectively;
  • the charging method provided in this embodiment includes steps S401 to S403.
  • step S401 the available charging voltage signal generated by the wireless charging module is acquired by the voltage output switching module, and the charging voltage signal is output to the charging management module.
  • step S402 the voltage value of the charging voltage signal is detected by the charging management module.
  • step S403 after the first data communication terminal and the second data communication terminal that are short-circuited by the fast charge identification module are disconnected, the charging management module adjusts the voltage according to the supported fast charging protocol and the voltage value of the charging voltage signal. And charging a voltage value of the first data communication end of the module and the second data communication end of the fast charge identification module to a corresponding charging mode.
  • the charging method provided by the embodiment of the present application can be applied to the charging device provided by the above embodiment.
  • the description of the charging device reference may be made to the description of the charging device embodiment, and therefore no further details are provided herein.
  • S403 may include: adjusting a voltage value of the first data communication end and the second data communication end to a fast charging mode according to the supported fast charging protocol, in response to determining that the voltage value of the charging voltage signal is greater than the set value Responding to determining that the voltage value of the charging voltage signal is equal to the set value, adjusting the voltage value of the first data communication end of the fast charge identification module and the second data communication end of the fast charge identification module to the set value according to the supported fast charging protocol Charging mode (for example, 5V charging mode).
  • the supported fast charging protocol Charging mode for example, 5V charging mode
  • S401 may include: receiving, by the voltage output switching module, a first voltage signal generated by the wireless charging module; receiving, by the voltage output switching module, the first control signal of the first state and the second state of the second state After the signal, the first voltage signal is converted into a second voltage signal whose voltage value is a set value (for example, 5V) as a first charging voltage signal; and the first output signal of the second state is received by the voltage output switching module and After the second control signal of the first state, the first voltage signal is used as the second charging voltage signal.
  • a set value for example, 5V
  • the first state can be a low level and the second state can be a high level; alternatively, the first state can be a high level and the second state can be a low level.
  • the first control signal that the load switch receives the low level enters the off state
  • the first control signal that the load switch receives the high level enters the on state
  • the voltage conversion unit receives the second control signal of the high level to enter.
  • the startup state the voltage conversion unit receives the second control signal of the low level to enter the off state.
  • this application is not limited thereto.
  • the charging method of this embodiment may further include: after the first data communication end and the second data communication end are short-circuited by the fast charge identification module, transmitting the first state of the first state to the voltage output switching module. a control signal and a second control signal of the second state; after the first data communication end and the second data communication end are disconnected by the fast charge identification module, transmitting the first control signal and the first state of the second state to the voltage output switching module The second control signal of the state.
  • controlling the shorting of the first data communication end and the second data communication end by the fast charge identification module may include: controlling to determine that the fast charge identification module detects that the voltage value of the first data communication end is equal to 0, and controls The first data communication end and the second data communication end are short-circuited; and the first data communication end and the second data communication end that are short-circuited by the fast charge identification module are disconnected, and may include: responding to determining that the fast charge recognition module detects the first The voltage value of a data communication end meets the disconnection condition required in the fast charging protocol, and the first data communication end and the second data communication end are controlled to be disconnected.
  • the charging method of this embodiment may further include: after the wireless charging module is started, transmitting a second control signal of the second state to the voltage output switching module, and receiving the first voltage signal by the fast charging identification module. Afterwards, the first control signal of the first state is sent to the voltage output switching module; after the first data communication end and the second data communication end are controlled to be disconnected by the fast charge identification module, the first state of the second state is sent to the voltage output switching module. The control signal transmits a second control signal of the first state to the voltage output switching module through the wireless charging module.
  • the charging method of the present embodiment will be further described below based on an exemplary configuration of the charging device shown in FIGS. 2 and 3.
  • the voltage value of the first voltage signal output by the wireless charging module is 5V, 9V or 12V
  • the voltage value of the second voltage signal output by the voltage converting unit is 5V.
  • FIG. 5 is a first example of the charging method provided by the embodiment. This example illustrates a charging method based on the charging device shown in FIG. 2.
  • the fast charge identification module controls the voltage output switching module to output a first voltage signal or a second voltage signal as a charging voltage signal.
  • the charging method provided by the present example includes steps S501 to S508.
  • step S501 it is determined whether the wireless charging module is activated; based on the determination result that the wireless charging module is not activated, the USB charging mode is entered; and based on the determination result of the wireless charging module being activated, step S502 is performed.
  • the charging device in the default state, the charging device is always in the USB charging mode, and the fast charge recognition module stops working. Once the switch of the wireless charging module is turned on, the wireless charging module is started, and step S502 is performed.
  • the wireless charging receiving coil in response to the wireless charging module being activated, a wireless charging operation is performed.
  • the wireless charging receiving coil generates an electromagnetic induction signal, which is converted into a direct current voltage (corresponding to the first voltage signal described above) by the wireless charging converter.
  • the magnitude of the converted first voltage signal is different depending on the type of wireless charging module used.
  • the wireless charging converter outputs a 5V, 9V, or 12V voltage as an example.
  • the magnitude of the first voltage signal output by the wireless charging converter of the present application is not limited. It should be noted that the low-power wireless charging converter can only output 5V voltage signal, and the medium-power wireless charging converter can not only output high voltage signals such as 9V or 12V, but also can be compatible with the output 5V voltage signal output.
  • step S502 after the wireless charging module is started, the output voltage is simultaneously provided to the fast charging identification module to supply power to the fast charging identification module, so that the fast charging identification module works normally; the wireless charging module does not start, and the fast charging identification module stops working.
  • the charge management module loads the D+ voltage according to the supported fast charge protocol.
  • the voltage of 0.325V can be loaded on D+ and maintained for more than 1.25 seconds.
  • step S504 the fast charge identification module detects that the voltage value of D+ changes according to the supported fast charging protocol, and disconnects the D+ and D- when the disconnection condition in the fast charging protocol is met; for example, fast According to the fast charging protocol QC2.0, the charging identification module can disconnect the shorting of D+ and D- after detecting that the voltage value on D+ is 0.325V and is maintained for more than 1.25 seconds.
  • the charge management module can detect a drop in the voltage value on D-.
  • step S506 the charging management module detects the voltage value output by the voltage output switching module at this time through the Vsense pin; in response to the detected voltage value being 9V or 12V, step S508 is performed; and in response to the detected voltage value being 5V, Step S507 is performed.
  • step S507 in response to the voltage output switching module output voltage being 5V, that is, the wireless charging module actually outputs a 5V voltage signal at this time, the charging management module adjusts the D+ and D-voltage values into the 5V charging mode according to the supported fast charging protocol.
  • step S508 in response to determining that the voltage output switching module output voltage is 9V or 12V, that is, the wireless charging module actually outputs a 9V or 12V voltage signal at this time, the charging management module adjusts the D+ and D-voltage values according to the supported fast charging protocol. Enter the fast charging mode for wireless fast charging.
  • FIG. 6 is a second example of a charging method provided by the embodiment. This example illustrates a charging method based on the charging device shown in FIG.
  • the fast charge identification module and the wireless charging module control voltage output switching module output a first voltage signal or a second voltage signal as a charging voltage signal.
  • the charging method provided by the present example includes steps S601 to S609.
  • step S601 it is determined whether the wireless charging module is activated; based on the determination result that the wireless charging module is not activated, the USB charging mode is entered; and based on the determination result of the wireless charging module activation, step S602 and step S603 are performed.
  • the charging device in the default state, the charging device is always in the USB charging mode, and the fast charge recognition module stops working. Once the switch of the wireless charging module is turned on, the wireless charging module is started, and step S602 and step S603 are performed.
  • the wireless charging receiving coil in response to the wireless charging module being activated, a wireless charging operation is performed.
  • the wireless charging receiving coil generates an electromagnetic induction signal, which is converted into a direct current voltage (corresponding to the first voltage signal described above) by the wireless charging converter.
  • the magnitude of the converted first voltage signal is different depending on the type of wireless charging module used.
  • the wireless charging converter outputs a 5V, 9V, or 12V voltage as an example.
  • the magnitude of the first voltage signal output by the wireless charging converter of the present application is not limited. It should be noted that the low-power wireless charging converter can only output 5V voltage signal, and the medium-power wireless charging converter can not only output high voltage signals such as 9V or 12V, but also can be compatible with the output 5V voltage signal output.
  • step S603 after the wireless charging module is started, the output voltage is simultaneously provided to the fast charging identification module to supply power to the fast charging identification module, so that the fast charging identification module works normally; the wireless charging module does not start, and the fast charging identification module stops working.
  • the charge management module loads the D+ voltage according to the supported fast charge protocol.
  • the voltage of 0.325V can be loaded on D+ and maintained for more than 1.25 seconds.
  • step S605 the fast charge identification module detects that the voltage value of the D+ changes according to the supported fast charging protocol, and disconnects the D+ and D- when the disconnection condition in the fast charging protocol is satisfied; for example, fast According to the fast charging protocol QC2.0, the charging identification module can disconnect the shorting of D+ and D- after detecting that the voltage value on D+ is 0.325V and is maintained for more than 1.25 seconds.
  • the charge management module can detect a drop in the voltage value on D-.
  • step S607 the charging management module detects the voltage value output by the voltage output switching module at this time through the Vsense pin; in response to the detected voltage value being 9V or 12V, step S609 is performed; and in response to the detected voltage value being 5V, Step S608 is performed.
  • step S608 in response to the voltage output switching module output voltage being 5V, that is, the wireless charging module actually outputs a 5V voltage signal at this time, the charging management module adjusts the D+ and D-voltage values into the 5V charging mode according to the supported fast charging protocol.
  • step S609 in response to the voltage output switching module output voltage is 9V or 12V, that is, the wireless charging module actually outputs a 9V or 12V voltage signal at this time, the charging management module adjusts the D+ and D- voltage values according to the supported fast charging protocol. Fast charging mode for wireless fast charging.
  • the embodiment of the present application further provides a charging control device, which is adapted to be electrically connected between the wireless charging module and the charging management module, and the charging control device includes: a voltage output switching module and a fast charging identification module, and an input of the voltage output switching module.
  • the end is electrically connected to the voltage output end of the wireless charging module, and the output end of the voltage output switching module is electrically connected to the voltage input end and the voltage detecting end of the charging management module respectively, and the first data communication end of the fast charge identification module and the charging management module
  • the first data communication end is electrically connected, and the second data communication end of the fast charge identification module is electrically connected to the second data communication end of the charge management module; the control signal output end of the fast charge identification module is electrically connected to the control end of the voltage output switching module .
  • the voltage output switching module is configured to be electrically connected to the wireless charging module and the charging management module respectively, obtain an available charging voltage signal generated by the wireless charging module, and output the charging voltage signal to the charging management module;
  • the fast charge identification module is configured to be electrically connected to the wireless charging module and the charging management module respectively, and control the first data communication end (D+) and the second data communication end (D-) to be shorted or disconnected, so that the charging management module adjusts The voltage value of the first data communication end of the fast charge identification module and the second data communication end of the fast charge identification module enters a corresponding charging mode, and is charged by using the charging voltage signal.
  • the fast charge identification module may be configured to control the first data communication terminal D+ and the second data communication terminal D- to be shorted or disconnected according to the detected voltage value of the first data communication terminal D+.
  • the fast charge identification module may be configured to control the first data communication terminal D+ and the second data communication terminal D- to be short-circuited in response to determining that the voltage value of the first data communication terminal D+ is detected to be equal to 0;
  • the first data communication terminal D+ and the second data communication terminal D- are controlled to be disconnected in response to determining that the voltage value of the first data communication terminal D+ is detected to comply with the disconnection condition required in the supported fast charging protocol.
  • the voltage output switching module may include: a load switch and a voltage conversion unit; the control signal output end of the fast charge identification module includes a first control signal output end and a second control signal output end.
  • the control end of the load switch is electrically connected to the first control signal output end of the fast charge identification module; the control end of the voltage conversion unit is electrically connected to the second control signal output end of the fast charge identification module or the IO control end of the wireless charging module. .
  • the load switch is configured to be electrically connected to the voltage output end of the wireless charging module at the input end of the load switch, and the output end of the load switch is electrically connected to the voltage input end and the voltage detecting end of the charging management module respectively, if the fast charging identification module After the outputted first control signal enters an on state, the first voltage signal generated by the wireless charging module is output to the charging management module as a second charging voltage signal.
  • the voltage conversion unit is configured to be electrically connected to the input end of the voltage conversion unit and the voltage output end of the wireless charging module, and the output end of the voltage conversion unit is electrically connected to the voltage input end and the voltage detecting end of the charging management module respectively, if fast charging
  • the first voltage signal is converted into a second voltage signal whose voltage value is a set value (for example, 5V), and is output as a first charging voltage signal to Charge management module.
  • the load switch if the first control signal is at a high level, the load switch enters an on state, and if the first control signal is at a low level, the load switch enters an off state; if the second control signal is high Level, the voltage conversion unit enters a startup state, and if the second control signal is low, the voltage conversion unit enters a shutdown state;
  • the load switch enters an on state, and if the first control signal is at a high level, the load switch enters an off state; if the second control signal is at a low level, the voltage The conversion unit enters a startup state, and if the second control signal is at a high level, the voltage conversion unit enters a shutdown state.
  • the charging control device provided in this embodiment can cooperate with a wireless charging module and a terminal device supporting a fast charging protocol (for example, including a charging management module and a battery) to implement wireless fast charging.
  • a fast charging protocol for example, including a charging management module and a battery
  • the embodiment of the present application further provides a charging control method, which is applied to a charging control device, where the charging control device includes a voltage output switching module and a fast charging identification module, and the charging control device is adapted to be electrically connected to the wireless charging module and the charging management module.
  • the first data communication end and the second data communication end of the fast charge identification module are respectively adapted to be electrically connected to the charging management module respectively.
  • the charging control method provided in this embodiment includes:
  • controlling the first data communication end and the second data communication end to be shorted or disconnected by the fast charge identification module may include: controlling the first data communication according to the detected voltage value of the first data communication end The terminal and the second data communication terminal are shorted or disconnected.
  • controlling the first data communication end and the second data communication end to be shorted or disconnected according to the detected voltage value of the first data communication end may include: responding to detecting that the voltage value of the first data communication end is equal to 0 Controlling the first data communication end and the second data communication end to be short-circuited; controlling the first data communication end and the second data in response to detecting that the voltage value of the first data communication end meets a disconnection condition required in the supported fast charging protocol The communication end is disconnected.
  • the obtaining, by the voltage output switching module, the available charging voltage signal generated by the wireless charging module may include: receiving, by the voltage output switching module, the first voltage signal generated by the wireless charging module; receiving the voltage output switching module After the first control signal of the first state and the second control signal of the second state, converting the first voltage signal into a second voltage signal whose voltage value is a set value (for example, 5V) as the first charging voltage signal; After the voltage output switching module receives the first control signal of the second state and the second control signal of the first state, the first voltage signal is used as the second charging voltage signal.
  • the embodiment of the present application further provides a terminal device, including: the charging device provided in the foregoing embodiment.
  • the terminal device may include, for example, a portable terminal such as a mobile phone or a tablet computer.
  • the first data communication terminal D+ and the second data communication terminal D- of the fast charge identification module may also be electrically connected to the data communication terminals D+, D- of the baseband processor of the terminal device.
  • an embodiment of the present application further provides a computer readable medium storing a charging program, where the charging program is executed by a processor to implement the steps of the charging method.
  • the embodiment of the present application further provides a computer readable medium storing a charging control program, where the charging control program is executed by a processor to implement the steps of the charging control method.
  • Computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media.
  • Computer storage media include, but are not limited to, random access memory (RAM), read only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or Other memory technologies, Compact Disc Read-Only Memory (CD-ROM), Digital Video Disc (DVD) or other optical disc storage, magnetic cassette, magnetic tape, disk storage or other magnetic storage device, or Any other medium that can be used to store the desired information and that can be accessed by the computer.
  • communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un appareil de charge, un appareil de commande de charge, un dispositif terminal et un procédé de charge. L'appareil de charge comprend un module de charge sans fil, un module de commutation de sortie de tension, un module d'identification de charge rapide, et un module de gestion de charge. Le module de commutation de sortie de tension obtient un signal de tension de charge disponible généré par le module de charge sans fil, et délivre le signal de tension de charge au module de gestion de charge. Le module d'identification de charge rapide commande une première et une seconde extrémité de communication de données à court-circuiter ou à déconnecter. Le module de gestion de charge détecte la valeur de tension du signal de tension de charge et règle, après commande de la première et de la seconde extrémité de communication de données à déconnecter par le module d'identification de charge rapide, des valeurs de tension de la première et de la seconde extrémité de communication de données du module d'identification de charge rapide sur un mode de charge correspondant selon un protocole de charge rapide pris en charge et la valeur de tension du signal de tension de charge.
PCT/CN2019/074592 2018-02-09 2019-02-02 Appareil de charge, appareil de commande de charge, dispositif terminal et procédé de charge WO2019154368A1 (fr)

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