WO2023115779A1

WO2023115779A1 - Charging architecture, charging control method, charging chip, and terminal device

Info

Publication number: WO2023115779A1
Application number: PCT/CN2022/090809
Authority: WO
Inventors: 钱平; 王彦腾; 王也
Original assignee: 北京小米移动软件有限公司
Priority date: 2021-12-24
Filing date: 2022-04-29
Publication date: 2023-06-29
Also published as: CN116345598A

Abstract

The present disclosure relates to a charging architecture, a charging control method, a charging chip, and a terminal device. The charging architecture comprises: a transmitting/receiving module, a charge pump module, and a battery. The charge pump module comprises at least two charge pump units. The at least two charge pump units are connected in parallel. The transmitting/receiving module is connected to an external power supply or an external power receiving device. The charge pump module is separately connected to the transmitting/receiving module and the battery. The charge pump module comprises a forward charging working mode and a reverse power supply working mode.

Description

Charging architecture, charging control method, charging chip and terminal equipment

Cross References to Related Applications

This application is based on a Chinese patent application with application number 202111604941.2 and a filing date of December 24, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The present disclosure relates to the technical field of charging, and in particular to a charging architecture, a charging control method, a charging chip, and a terminal device.

Background technique

Rechargeable batteries are rechargeable batteries with limited charging times. They are usually used with chargers. Most terminal devices rely on rechargeable batteries to achieve battery life. With the continuous development of batteries and charging technologies, the requirements for charging speed and charging time are increasing. High, most batteries use a high-power charging solution with a dual-cell architecture, which is expensive and has limited battery capacity.

Contents of the invention

The disclosure provides a charging framework, a charging control method, a charging chip and a terminal device.

According to a first aspect of an embodiment of the present disclosure, a charging architecture is provided, including: a transceiver module, a charge pump module, and a battery, the charge pump module includes at least two charge pump units, and the at least two charge pump The units are connected in parallel, wherein, the transceiver module is connected to an external power supply or an external power receiving device; the charge pump module is connected to the transceiver module and the battery respectively, and the charge pump module includes a forward charging working mode and reverse power supply working mode.

In one embodiment of the present disclosure, when the transceiver module is connected to the external power supply, the transceiver module is used to receive the input voltage of the external power supply, and the charge pump module is used to convert the input voltage The voltage is converted to a first target voltage and then output to the battery; when the transceiver module is connected to the external power receiving device, the charge pump module is used to convert the output voltage of the battery to a second target voltage Then output to the transceiver module, the transceiver module is used to output the second target voltage to the external power receiving device.

In one embodiment of the present disclosure, the charge pump module includes a first charge pump unit and a second charge pump unit, wherein: the first end of the first charge pump unit is connected to the transceiver module, the The second end of the first charge pump unit is connected to the battery; the first end of the second charge pump unit is connected to the transceiver module, and the second end of the second charge pump unit is connected to the battery connect.

In an embodiment of the present disclosure, the charging architecture further includes: a voltage conversion module, the first terminal of the voltage conversion module is connected to the first terminal of the first charge pump unit, and the first terminal of the voltage conversion module The two terminals are connected to the system voltage port, and the third terminal of the voltage conversion module is connected to the first terminal of the battery.

In an embodiment of the present disclosure, the transceiver module includes a wired transceiver module and a wireless transceiver module; then the first detection terminal of the first charge pump unit is connected to the wired transceiver module, and the first The second detection terminal of a charge pump unit is connected to the wireless transceiver module, wherein the first detection terminal is used to detect whether the wired transceiver module has an input signal, and the second detection terminal is used to detect the wireless transceiver module. Whether the wireless transceiver module has an input signal; the first charge pump unit is used to: connect or disconnect the wired transceiver module and the first end of the first charge pump unit according to the first control signal connection, and connect or disconnect the connection between the wireless transceiver module and the first end of the first charge pump unit according to the second control signal.

In an embodiment of the present disclosure, the charging architecture further includes: a first switch module and a second switch module; The wireless transceiver module is connected to the first end of the first charge pump unit through the second switch module; the first control end of the first charge pump unit is connected to the first switch module , the second control terminal of the first charge pump unit is connected to the second switch module; the first control terminal of the first charge pump unit is used to output the first control signal, and the first charge pump The second control terminal of the unit is used to output the second control signal.

In an embodiment of the present disclosure, the first switch module includes: a first transistor, the first pole of the first transistor is connected to the wired transceiver module, and the control pole of the first transistor is connected to the The first control terminal of the first charge pump unit is connected; the second transistor, the first pole of the second transistor is connected with the second pole of the first transistor, and the second pole of the second transistor is connected with the first transistor. The first terminal of a charge pump unit is connected, and the control electrode of the second transistor is connected with the first control terminal of the first charge pump unit.

In an embodiment of the present disclosure, the second switch module includes: a third transistor, the first pole of the third transistor is connected to the wireless transceiver, the control pole of the third transistor is connected to the first The second control terminal of a charge pump unit is connected; the fourth transistor, the first pole of the fourth transistor is connected with the second pole of the third transistor, and the second pole of the fourth transistor is connected with the first pole. The first terminal of the charge pump unit is connected, and the control electrode of the fourth transistor is connected with the second control terminal of the first charge pump unit.

In an embodiment of the present disclosure, the first charge pump unit is configured to detect that one of the first detection terminal and the second detection terminal has an input signal and the other detection terminal has no input signal, among the first switch module and the second switch module, a switch module corresponding to the detection terminal with an input signal is controlled to conduct; in the first switch module and the second switch module When any switch module in the module is turned on, control the other switch module to turn off; when it is detected that there is no input signal at the first detection terminal and the second detection terminal, control the first switch module and the second detection terminal The second switch modules are all disconnected.

In an embodiment of the present disclosure, the first charge pump unit is configured to: control the second switch module when it is detected that there is an input signal at the second detection terminal and there is no input signal at the first detection terminal turn on, control the first switch module to turn off; when it detects that the first detection terminal has an input signal, control the wireless transceiver module to enter the dormant state, control the first switch module to turn on, and control the The second switch module is turned off; when it is detected that there is no input signal from the first detection terminal and the second detection terminal, both the first switch module and the second switch module are controlled to be turned off.

According to the second aspect of the embodiments of the present disclosure, there is provided a charging control method applied to the charging architecture described in the first aspect of the embodiments of the present disclosure, the charging control method includes: when in the forward charging working state, Convert the input voltage of the external power supply received by the transceiver module into a first target voltage and then output it to the battery; in the reverse power supply working state, convert the output voltage of the battery into a second target voltage and pass the transceiver The output of the module is to an external power receiving device.

In an embodiment of the present disclosure, the transceiver module includes a wired transceiver module and a wireless transceiver module, and the forward charging working state includes at least one of the following: wired forward charging and wireless forward charging; The working state of reverse power supply includes at least one of the following: wired reverse power supply and wireless reverse power supply. ; If it is currently in the wireless forward charging, it will not respond to the input signal of the wired transceiver module; if it is currently in the wired reverse power supply, it will not respond to the input signal of the wireless transceiver module; if Currently in the wireless reverse power supply, it does not respond to the input signal of the wired transceiver module.

In an embodiment of the present disclosure, the transceiver module includes a wired transceiver module and a wireless transceiver module, and the forward charging working state includes at least one of the following: wired forward charging and wireless forward charging; The reverse power supply working state includes at least one of the following: wired reverse power supply and wireless charging power supply, and the method further includes: when it is currently in the wireless forward charging or the wireless reverse power supply, if the wired The input signal of the transceiver module controls the wireless transceiver module to enter the dormant state, disconnects the wireless transceiver module from the charge pump module, and connects the wired transceiver module to the charge pump module. Set of connections to switch to the wired forward charging or the wired reverse power.

In an embodiment of the present disclosure, the converting the input voltage of the external power supply received by the transceiver module into a first target voltage and then outputting it to the battery includes: determining the target forward charging operation of the charge pump module mode; control the charge pump module to work in the target forward charging mode, and through the target forward charging mode, the input voltage of the external power supply received by the transceiver module is converted into the the first target voltage; and output the first target voltage to the battery.

In an embodiment of the present disclosure, the determining the target forward charging operation mode of the charge pump module specifically includes: determining the target forward charge operation mode of the charge pump module according to target parameters, wherein, The target parameter includes at least one of the following: current application scenario, current remaining power and charging current.

In an embodiment of the present disclosure, the converting the output voltage of the battery into a second target voltage and outputting it to an external power receiving device through the transceiver module specifically includes: determining the target voltage of the charge pump module Reverse power supply operation mode: control the charge pump module to work in the target reverse power supply operation mode, and convert the output voltage of the battery to the second target voltage through the target reverse power supply operation mode ; Outputting the second target voltage to the external power receiving device through the transceiver module.

According to a third aspect of the embodiments of the present disclosure, there is provided a charging chip, including: the charge pump unit in the charging architecture described in the first aspect of the present disclosure.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a terminal device, including: the charging architecture described in the third aspect of the present disclosure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings here are incorporated into the specification and constitute a part of the specification, show embodiments consistent with the disclosure, and are used together with the description to explain the principle of the disclosure, and do not constitute an improper limitation of the disclosure.

Fig. 1 is a schematic structural diagram of a charging architecture according to an exemplary embodiment.

Fig. 2 is a schematic structural diagram of a charging architecture according to another exemplary embodiment.

Fig. 3 is a flow chart showing a charging control method according to an exemplary embodiment.

Fig. 4 is a flowchart showing a charging control method according to another exemplary embodiment.

Fig. 5 is a flow chart showing a charging control method according to another exemplary embodiment.

Fig. 6 is a block diagram of a charging chip according to an exemplary embodiment.

Fig. 7 is a block diagram showing a terminal device according to an exemplary embodiment.

Detailed ways

In order to enable ordinary persons in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings.

It should be noted that the terms "first" and "second" in the specification and claims of the present disclosure and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein can be practiced in sequences other than those illustrated or described herein. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

Fig. 1 is a schematic structural diagram of a charging architecture according to an exemplary embodiment. As shown in Fig. 1, the charging architecture 10 of the embodiment of the present disclosure may specifically include: a transceiver module U1, a charge pump module U2 and a battery BAT1, where:

The charge pump module U2 includes at least two charge pump units. The charge pump units in the charge pump module U2 are connected in parallel to realize the voltage regulation function. The transceiver module U1 can be connected to an external power supply or an external power receiving device. , the charge pump module U2 is connected to the transceiver module U1 and the battery BAT1 respectively, and the charge pump module U2 has a forward charging mode and a reverse power supply mode.

Among them, the working mode of the charge pump module U2 can include step-down mode, boost mode and direct charging mode from the function of voltage regulation. Specifically, the forward charging working mode can include forward charging buck working mode and forward charging mode Direct charging working mode, such as forward 1:1 working mode, forward 2:1 working mode, forward 4:1 working mode, etc. The reverse power supply working mode can include reverse power supply boost working mode and reverse power supply Direct charging working modes, such as reverse 1:1 working mode, reverse 1:2 working mode and reverse 1:4 working mode, etc.

In some embodiments, when the transceiver module U1 is connected to an external power supply (such as a mobile charging device), the transceiver module U1 is used to receive the input voltage of the external power supply, and the charge pump module U2 enters a forward charging mode to receive The received input voltage is converted into the first target voltage, and the first target voltage is output to the battery BAT1, so that the charging structure 10 realizes the forward charging function, that is, the battery BAT1 is charged by an external power supply.

In some embodiments, when the transceiver module U1 is connected to an external power receiving device (such as a terminal device such as a mobile phone), the charge pump module U2 enters the reverse power supply mode, and the charge pump module U2 is used to convert the output of the battery BAT1 The voltage is converted into the second target voltage, and the second target voltage is output to the transceiver module U1, and the transceiver module U1 outputs the second target voltage to the external power receiving device, so as to realize the reverse power supply function, that is, the battery BAT1 provides external The process of receiving electrical equipment for charging.

In addition, in the embodiment of the present disclosure, the first charge pump unit and the second charge pump unit may include one charge pump, or may include multiple charge pumps, which is not limited in this embodiment of the present disclosure. For example, the first charge pump unit Multiple charge pumps can work alternately to further optimize charging efficiency.

In the embodiment of the present disclosure, the charge pump can be a 4:1 Dickson type charge pump, and the charge pump can specifically include 17 power transistors and 6 groups of flying capacitors. By adjusting the conduction state of the power transistors, different The path controls the charging and discharging of the flying capacitor. The charge pump generates a high voltage through the accumulation effect of the flying capacitor on the charge, so that the current flows from a low potential to a high potential, thereby adjusting the voltage input to the charge pump module and outputting the desired target. Voltage, to achieve forward charging and reverse power supply.

For example, based on the charging architecture in the embodiment of the present disclosure, when the transceiver module U1 receives an input voltage of 20V from an external power supply, the voltage can be adjusted by two 4:1 charge pump units in the charge pump module to obtain a 5V voltage. The output voltage, that is, the first target voltage input to the first terminal of the battery is 5V, based on the fact that the two charge pump units are respectively connected in parallel at 5V to charge the battery.

The charging architecture of the embodiment of the present disclosure includes a transceiver module, a charge pump module, and a battery. The charge pump module includes at least two charge pump units, and the at least two charge pump units are connected in parallel, wherein the transceiver module is connected to an external power supply or The external power receiving equipment is connected, and the charge pump module is respectively connected with the transceiver module and the battery. The charge pump module includes a forward charging working mode and a reverse power supply working mode. This disclosure builds a high-power single-cell charging architecture, which can realize multiple charging functions and improve charging speed and efficiency. At the battery end, a single-cell is used, and a battery connector is no longer needed to connect two cells. , thereby greatly increasing the battery capacity and reducing the volume of the battery.

On the basis of the above embodiments, as shown in FIG. 2 , the charge pump module U2 may include a first charge pump unit PUMP1 and a second charge pump unit PUMP2, and the charging architecture 10 of the embodiment of the present disclosure may also include: a voltage conversion module U3.

The first end of the first charge pump unit PUMP1 is connected to the transceiver module U1, the second end of the first charge pump unit PUMP1 is connected to the battery BAT1; the first end of the second charge pump unit PUMP2 is connected to the transceiver module U1, and the second end of the first charge pump unit PUMP2 is connected to the transceiver module U1. The second terminal of the second charge pump unit PUMP2 is connected to the battery BAT1. In some embodiments, the first charge pump unit PUMP1 may include a 4:1 charge pump and be integrated in the first charging chip, and the second charge pump unit PUMP2 may include a 4:1 charge pump and be integrated in the second charging chip.

The first end of the voltage conversion module U3 is connected to the first end of the first charge pump unit PUMP1, and the second end of the voltage conversion module U3 is connected to the system voltage port for outputting the system power supply voltage of the terminal equipment where the battery BAT1 is located, the voltage The third end of the conversion module U3 is connected to the first end of the battery BAT1. In some embodiments, the voltage conversion module may be a step-down module (Buck Charger), and may also be integrated in a PMIC (Power Management IC, power management integrated circuit).

For example, 120W electric energy with an input of 20V/6A can be stepped down to 5V/12A based on the first charge pump unit of 4:1, and can be stepped down to 5V/12A based on the second charge pump unit of 4:1, and then The first charge pump unit and the second charge pump unit respectively step down the input voltage and output it to the battery, so that the first charge pump unit and the second charge pump unit can be connected in parallel to charge the battery, and the output to the battery can be 5V/ 24A electric energy, to achieve 120W high-power single-cell charging.

In the embodiment of the present disclosure, a high-power charging architecture can be constructed through two parallel-connected charge pump units and a single battery, that is, high-power charging with step-down and boost-current can be realized based on two charging chips, which improves charging efficiency and does not require two charging chips. battery cells to increase battery capacity.

In some possible embodiments, the transceiver module U1 may include a wired transceiver module U4 and a wireless transceiver module U5. When the wired transceiver module U4 is connected to an external power supply, the charging architecture 10 can realize wired forward charging. When the module U4 is connected to an external power receiving device, the charging structure 10 can realize wired reverse power supply; when the wireless transceiver module U5 is connected to an external power supply, the charging structure 10 can realize wireless forward charging. When an external power receiving device is connected, the charging architecture 10 can realize wireless reverse power supply.

Therefore, wireless charging and wired charging can be realized based on the single-cell charging architecture in the embodiment of the present disclosure, that is, wireless forward charging/reverse power supply and wired forward charging/reverse charging can be realized based on the charging architecture of the embodiment of the present disclosure. There are four modes of power supply, which can reduce the cost and the area occupied by the deployment of the overall solution.

Since wired charging and wireless charging share the same path, it is necessary to switch between wired charging and wireless charging to ensure that wired charging and wireless charging can be performed normally. The module U4 is connected, the second detection terminal of the first charge pump unit PUMP1 is connected with the wireless transceiver module U5, and the first detection terminal is used to detect whether the wired transceiver module U4 has an input signal (that is, to detect whether the wired transceiver module U4 is connected to the external power supply or external power receiving equipment), utilize the second detection terminal to detect whether the wireless transceiver module U5 has an input signal (that is, detect whether the wireless transceiver module U5 is connected to the external power supply or external power receiving equipment), the first charge pump unit PUMP1 Generate a first control signal or a second control signal according to the detection result, and the first charge pump unit PUMP1 connects or disconnects the connection between the wired transceiver module U4 and the first end of the first charge pump unit PUMP1 according to the first control signal , and connect or disconnect the connection between the wireless transceiver module U5 and the first terminal of the first charge pump unit PUMP1 according to the second control signal.

Further, in the embodiment of the present disclosure, a first switch module U6 is set between the first charge pump unit PUMP1 and the wired transceiver module U4, and a second switch module U7 is set between the first charge pump unit PUMP1 and the wireless transceiver module U5. .

The wired transceiver module U4 is connected to the first end of the first charge pump unit PUMP1 through the first switch module U6, and the wireless transceiver module U5 is connected to the first end of the first charge pump unit PUMP1 through the second switch module U7; A first control terminal of the charge pump unit PUMP1 is connected to the first switch module U6, and a second control terminal of the first charge pump unit PUMP1 is connected to the second switch module U7. The first charge pump unit PUMP1 outputs a first control signal through the first control terminal to control the on or off of the first switch module U6, thereby controlling the connection between the wired transceiver module U4 and the first end of the first charge pump unit PUMP1. The first charge pump unit PUMP1 outputs the second control signal through the second control terminal to control the second switch module U7 to be turned on or off, thereby controlling the connection between the wireless transceiver module U5 and the first charge Switching on or off of the connection between the first terminals of the pump unit PUMP1.

Wherein, the first switch module U6 includes: a first transistor Q1 and a second transistor Q2, the first transistor Q1 and the second transistor Q2 may be metal-oxide-semiconductor field effect transistors, and the first pole (drain D) of the first transistor Q1 ) is connected to the wired transceiver module U4, the control pole (gate G) of the first transistor Q1 is connected to the first control terminal of the first charge pump unit PUMP1; the first pole (drain D) of the second transistor Q2 is connected to the first The second pole (source S) of a transistor Q1 is connected, the second pole (source S) of the second transistor Q2 is connected with the first end of the first charge pump unit PUMP1, the control pole (gate S) of the second transistor Q2 G) Connect to the first control terminal of the first charge pump unit PUMP1. In this way, two metal-oxide-semiconductor field-effect transistors are connected in series back-to-back to form a first switch module, and the conduction state of the two metal-oxide-semiconductor field-effect transistors is controlled by the first charge pump unit, thereby controlling the turn-on of the first switch module or disconnect.

The second switch module U7 includes: a third transistor Q3 and a fourth transistor Q4, the third transistor Q3 and the fourth transistor Q4 can be metal oxide semiconductor field effect transistors, the first pole (drain D) of the third transistor Q3 and The wireless transceiver module U5 is connected, the control pole (gate G) of the third transistor Q3 is connected with the second control terminal of the first charge pump unit PUMP1; the first pole (drain D) of the fourth transistor Q4 is connected with the third transistor Q4 The second pole (source S) of Q3 is connected, the second pole (source S) of the fourth transistor Q4 is connected with the first end of the first charge pump unit PUMP1, and the control pole (gate G) of the fourth transistor Q4 It is connected with the second control terminal of the first charge pump unit PUMP1. In this way, two metal-oxide-semiconductor field-effect transistors are connected in series back-to-back to form a second switch module, and the conduction state of the two metal-oxide-semiconductor field-effect transistors is controlled by the first charge pump unit, thereby controlling the turn-on of the second switch module or disconnect.

On the basis of the above-mentioned embodiments, the embodiments of the present disclosure can implement a "first-come-first-served" switching method: that is, the charging structure is that the end of the wireless transceiver module and the wired transceiver module is connected to the signal first, that is, it is connected to the external power supply first. Or the end connected to an external receiving device, providing forward charging/reverse power supply function.

In a specific implementation, the first charge pump unit PUMP1 controls the first switch module U6 and the second switch module U6 when it detects that one of the first detection terminal and the second detection terminal has an input signal and the other detection terminal has no input signal. In module U7, a switch module corresponding to a detection terminal with an input signal is turned on, and when any one of the first switch module U6 and the second switch module U7 is turned on, the other switch module is controlled to turn off ; When it is detected that there is no input signal from the first detection terminal and the second detection terminal, both the first switch module U6 and the second switch module U7 are controlled to be turned off.

For example, when the wireless transceiver module receives the input signal of wireless charging, but the wired transceiver module does not receive the input signal of wired charging, the first charge pump unit will detect that there is an input signal at the second detection terminal, and the first detection At this time, the first charge pump unit controls the second switch module to turn on and the first switch module to turn off, so that the wireless charging path is turned on and the wired charging path is turned off.

In addition to the above-mentioned "first-come-first-served" switching method, the embodiment of the present disclosure can also set a "priority" switching method, such as a "wired priority" switching method, that is, no matter whether the wireless path has signal access or not, as long as the wired path has a signal Access, all wired charging.

In a specific implementation, when the first charge pump unit PUMP1 detects that there is an input signal at the second detection terminal and there is no input signal at the first detection terminal, it controls the second switch module U7 to turn on, and controls the first switch module U6 to turn off; When there is an input signal at the first detection terminal, the wireless transceiver module U5 is controlled to enter a dormant state, the first switch module U6 is controlled to be turned on, and the second switch module U7 is controlled to be disconnected; when the first detection terminal and the second detection terminal are detected When there is no input signal at both terminals, both the first switch module U5 and the second switch module U6 are controlled to be turned off.

Wherein, the first charge pump unit PUMP1 controls the wireless transceiver module U5 to enter the dormant state when it detects an input signal at the first detection terminal, which can be realized through software control, for example, when the first detection terminal detects an input signal, it sends a signal to the processor. A signal is sent so that the processor controls the wireless transceiver module to enter a dormant state.

For example: the wireless transceiver module receives the input signal of wireless charging, and when the wireless charging path is turned on, if the first charge pump unit detects that there is an input signal at the first detection terminal, it controls the second switch module to disconnect and cut off the wireless charging path , controlling the conduction of the first switch module, opening the wired charging channel, and performing wired charging.

Thus, the embodiments of the present disclosure can realize wireless charging (wireless forward charging and wireless reverse power supply) and wired charging (wired forward charging and wired reverse power supply). 1. The charging chip of the charge pump can support wired 120W and wireless 50W charging at the same time. At the same time, based on the voltage regulation function of the charge pump module, the charging architecture of the embodiment of the present disclosure can realize multiple operating modes, for example, in forward charging 1:1 The working mode can be used in bright screen or high-battery scenes. When the charging current drops below 5A, the forward charging 1:1 working mode can be used to charge, which can improve charging efficiency and further reduce temperature rise; another example, based on positive The charging 2:1 working mode can realize high-power fast charging, and can be compatible with more chargers, such as PPS chargers compatible with ordinary 11V gears, to achieve 33W or 67W high-power fast charging; another example, based on reverse power supply 1: The 2/1:4 working mode can realize high-power wireless reverse power supply and wired reverse power supply, such as 20W-30W reverse power supply, which simplifies the charging structure and reduces the cost.

In order to realize the above-mentioned embodiments, the present disclosure further proposes a charging control method, and FIG. 3 is a flow chart of a charging control method according to an exemplary embodiment. As shown in FIG. 3 , the charging control method of the embodiment of the present disclosure may specifically include the following steps S301 to S302.

S301. When in the forward charging working state, convert the input voltage of the external power source received through the transceiver module into a first target voltage and then output it to the battery.

The charging control method of the embodiment of the present disclosure can be applied to the charging architecture of any of the above embodiments, and the charging architecture can be set in the charging chip, so that the terminal device equipped with the charging chip can implement the charging control method of the embodiment of the present disclosure.

In the embodiment of the present disclosure, when the terminal device is in the working state of forward charging, the input voltage of the external power supply received through the transceiver module can be converted into the first target voltage and then output to the battery.

S302. When in the reverse power supply working state, convert the output voltage of the battery into a second target voltage and output it to an external power receiving device through the transceiver module.

In the embodiment of the present disclosure, when the terminal device is in the working state of reverse power supply, the output voltage of the battery can be converted into the second target voltage, and the second target voltage can be output to the external power receiving device through the transceiver module.

The charging control method of the embodiment of the present disclosure converts the input voltage of the external power supply received by the transceiver module into the first target voltage and outputs it to the battery when it is in the forward charging working state, and when it is in the reverse power supply working state, The output voltage of the battery is converted into a second target voltage and then output to an external power receiving device through the transceiver module. Thus, various charging functions can be realized and the charging architecture can be simplified.

In the embodiment of the present disclosure, the transceiver module includes a wired transceiver module and a wireless transceiver module, so the forward charging working state can include at least one of the following: wired forward charging and wireless forward charging, and the reverse power supply working state is at least It may include one of the following: wired reverse power supply and wireless reverse power supply, then the charging control method of the present disclosure also includes: switching between four working states: wired forward charging, wireless forward charging, wired reverse power supply and wireless reverse power supply The method may specifically include the following possible implementation modes:

If the terminal device is currently in the working state of wired forward charging, it can be considered that the wired transceiver module is currently connected to the external power supply and receives the input voltage of the external power supply. In this case, it does not need to respond to the input signal of the wireless transceiver module, that is Regardless of whether the wireless transceiver module is connected to an external power source or an external power receiving device, it maintains the current wired forward charging working state.

If the terminal device is currently in the working state of wireless forward charging, it can be considered that the wireless transceiver module is currently connected to the external power supply and receives the input voltage of the external power supply. In this case, it does not need to respond to the input signal of the wired transceiver module, that is Regardless of whether the wired transceiver module is connected to an external power supply or an external power receiving device, the existing wireless forward charging working state is maintained.

If the terminal device is currently in the working state of wired reverse power supply, it can be considered that the wired transceiver module is connected to the external power receiving device and outputs voltage to the external power receiving device. In this case, this disclosure does not respond to the input of the wireless transceiver module Signal, that is, no matter whether the wireless transceiver module is connected to an external power supply or an external power receiving device, it will maintain the current working state of wired reverse power supply.

If the terminal device is currently in the working state of wireless reverse power supply, it can be considered that the wireless transceiver module is connected to the external power receiving device and outputs voltage to the external power receiving device. In this case, it does not need to respond to the input signal of the wired transceiver module. , that is, no matter whether the wired transceiver module is connected to the external power supply or the external power receiving device, it will maintain the existing wireless reverse power supply working state.

Therefore, the charging control method of the embodiment of the present disclosure can realize the switching of the four working states of wired forward charging, wireless forward charging, wired reverse power supply and wireless reverse power supply based on a "first come first served" manner.

In addition, the charging control method of the embodiment of the present disclosure can also realize the switching of the four working states of wired forward charging, wireless forward charging, wired reverse power supply and wireless reverse power supply based on the "wired priority" approach.

In the specific implementation, when the terminal device is currently in the working state of wireless forward charging or wireless reverse power supply, if the input signal of the wired transceiver module is detected, the wireless transceiver module is controlled to enter the sleep state, and the wireless transceiver module is disconnected from the wireless transceiver module. The connection of the charge pump module, and the connection of the wired transceiver module and the charge pump module are turned on, so as to switch to the wired forward charging or wired reverse power supply state.

In some possible embodiments, as shown in Fig. 4, in the scenario of forward charging working state, the input voltage of the external power supply received by the transceiver module is converted into the first target voltage and then output to the battery, which may specifically include the following Step S401 to step S403.

S401. Determine the target forward charging operation mode of the charge pump module.

In the embodiment of the present disclosure, the working mode of the charge pump module can be determined according to the relevant target parameters, such as when the application scenario, current remaining power and charging current, etc., wherein the working mode of the charge pump module can be distinguished according to the way of voltage regulation and can include Buck mode, boost mode and direct charging mode, etc.

When the terminal device is in the forward charging working state, the target forward charging working mode of the charge pump module can be determined according to the target parameters such as the current application scenario, the current remaining power, and the charging current.

For example, when the screen is bright or the battery is high, and the charging current is not higher than 5A, it is determined that the working state of the charge pump module is the forward 1:1 charging working mode.

S402. Control the charge pump module to work in the target forward charging operation mode, and convert the input voltage of the external power supply received by the transceiver module into a first target voltage through the target forward charging operation mode.

In the embodiment of the present disclosure, the working state of the components in the charge pump module is adjusted by adjusting the parameters of the charge pump module, thereby controlling the charge pump module to work in the target forward charging operation mode, and the target forward charging operation Mode for voltage regulation, converting the input voltage of the external power supply received by the transceiver module into the first target voltage.

S403. Outputting the first target voltage to the battery.

In the embodiment of the present disclosure, as shown in FIG. 5 , in the scenario of the reverse power supply working state, the input voltage of the external power supply received by the transceiver module is converted into the first target voltage and then output to the battery, which may specifically include the following steps S501 to step S503.

S501. Determine the target reverse power supply working mode of the charge pump module.

S502. Control the charge pump module to work in the target reverse power supply mode, and convert the output voltage of the battery into a second target voltage through the target reverse power supply mode.

S503. Output the second target voltage to an external power receiving device through the transceiver module.

It should be noted that the implementation manners of the embodiments of the present disclosure are similar to the implementation manners of the foregoing implementations, and details are not repeated here.

In order to realize the above embodiments, the present disclosure further proposes a charging chip, and FIG. 6 is a block diagram of a charging chip according to an exemplary embodiment. As shown in FIG. 6 , the charging chip 600 of the embodiment of the present disclosure includes: the charge pump unit in the above-mentioned charging architecture 10 . For example, the charging chip 600 includes the above-mentioned first charge pump unit PUMP1, or the charging chip 600 includes the above-mentioned second charge pump unit PUMP2.

For example, in the embodiment of the present disclosure, it can be based on two charging chips 600. The two charging chips 600 have the same function. group) and battery to achieve a high-power single-chip charging architecture.

To implement the foregoing embodiments, the present disclosure further proposes a terminal device, and FIG. 7 is a block diagram of a terminal device according to an exemplary embodiment. As shown in FIG. 7 , a terminal device 700 in an embodiment of the present disclosure includes: the charging architecture 10 described above.

The technical solution provided by the embodiments of the present disclosure is based on a transceiver module, a charge pump module, and a battery to construct a single-cell architecture capable of high-power charging. The charge pump module includes at least two charge pumps, and at least two charge pumps are connected in parallel. connection, wherein the transceiver module is connected to an external power supply or an external power receiving device, and the charge pump module is connected to the transceiver module and the battery respectively. The charge pump module includes a forward charging mode and a reverse power supply mode, so that it can The battery cell realizes high-power charging, and realizes multiple charging functions, reduces costs and increases battery capacity.

Other embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present disclosure is intended to cover any modification, use or adaptation of the present disclosure. These modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure. . The specification and examples are to be considered exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

A charging architecture, characterized in that it includes: a transceiver module, a charge pump module, and a battery, the charge pump module includes at least two charge pump units, and the at least two charge pump units are connected in parallel, wherein,

The transceiver module is connected to an external power supply or an external receiving device;

The charge pump module is respectively connected with the transceiver module and the battery, and the charge pump module includes a forward charging mode and a reverse power supply mode.
The charging architecture according to claim 1, wherein when the transceiver module is connected to the external power supply, the transceiver module is used to receive the input voltage of the external power supply, and the charge pump module is used to outputting to the battery after converting the input voltage into a first target voltage;

When the transceiver module is connected to the external power receiving device, the charge pump module is used to convert the output voltage of the battery into a second target voltage and output it to the transceiver module, and the transceiver module Used to output the second target voltage to the external power receiving device.
The charging architecture according to claim 1 or 2, wherein the charge pump module includes a first charge pump unit and a second charge pump unit, wherein:

The first end of the first charge pump unit is connected to the transceiver module, and the second end of the first charge pump unit is connected to the battery;

The first end of the second charge pump unit is connected to the transceiver module, and the second end of the second charge pump unit is connected to the battery.
The charging architecture according to claim 3, further comprising:

A voltage conversion module, the first end of the voltage conversion module is connected to the first end of the first charge pump unit, the second end of the voltage conversion module is connected to the system voltage port, and the third end of the voltage conversion module connected to the first terminal of the battery.
The charging architecture according to claim 3, wherein the transceiver module includes a wired transceiver module and a wireless transceiver module; the first detection terminal of the first charge pump unit is connected to the wired transceiver module connected, the second detection end of the first charge pump unit is connected to the wireless transceiver module, wherein the first detection end is used to detect whether the wired transceiver module has an input signal, and the second detection The terminal is used to detect whether the wireless transceiver module has an input signal;

The first charge pump unit is used for: connecting or disconnecting the connection between the wired transceiver module and the first end of the first charge pump unit according to the first control signal, and connecting the first terminal of the first charge pump unit according to the second control signal Connecting or disconnecting the connection between the wireless transceiver module and the first end of the first charge pump unit.
The charging architecture according to claim 5, further comprising: a first switch module and a second switch module;

The wired transceiver module is connected to the first end of the first charge pump unit through the first switch module, and the wireless transceiver module is connected to the first end of the first charge pump unit through the second switch module. One end connection;

The first control terminal of the first charge pump unit is connected to the first switch module, and the second control terminal of the first charge pump unit is connected to the second switch module;

The first control terminal of the first charge pump unit is used to output the first control signal, and the second control terminal of the first charge pump unit is used to output the second control signal.
The charging architecture according to claim 6, wherein the first switch module comprises:

A first transistor, the first pole of the first transistor is connected to the wired transceiver module, and the control pole of the first transistor is connected to the first control terminal of the first charge pump unit;

a second transistor, the first pole of the second transistor is connected to the second pole of the first transistor, the second pole of the second transistor is connected to the first end of the first charge pump unit, the The control electrode of the second transistor is connected to the first control terminal of the first charge pump unit.
The charging architecture according to claim 6, wherein the second switch module comprises:

a third transistor, the first pole of the third transistor is connected to the wireless transceiver module, and the control pole of the third transistor is connected to the second control terminal of the first charge pump unit;

a fourth transistor, the first pole of the fourth transistor is connected to the second pole of the third transistor, the second pole of the fourth transistor is connected to the first end of the first charge pump unit, the The control electrode of the fourth transistor is connected to the second control terminal of the first charge pump unit.
The charging architecture according to any one of claims 6 to 8, wherein the first charge pump unit is used for:

When it is detected that one of the first detection terminal and the second detection terminal has an input signal and the other detection terminal has no input signal, control the first switch module and the second switch module, A switch module corresponding to the detection terminal having an input signal is turned on;

When any one of the first switch module and the second switch module is turned on, control the other switch module to be turned off;

When it is detected that neither the first detection terminal nor the second detection terminal has an input signal, both the first switch module and the second switch module are controlled to be turned off.
The charging architecture according to any one of claims 6 to 8, wherein the first charge pump unit is used for:

When it is detected that the second detection terminal has an input signal and the first detection terminal has no input signal, control the second switch module to turn on, and control the first switch module to turn off;

When an input signal is detected at the first detection terminal, control the wireless transceiver module to enter a dormant state, control the first switch module to be turned on, and control the second switch module to be turned off;

When it is detected that neither the first detection terminal nor the second detection terminal has an input signal, both the first switch module and the second switch module are controlled to be turned off.
A charging control method, which is applied to the charging architecture according to any one of claims 1 to 10, the charging control method comprising:

When in the forward charging working state, the input voltage of the external power supply received through the transceiver module is converted into the first target voltage and then output to the battery;

In the reverse power supply working state, the output voltage of the battery is converted into a second target voltage and then output to an external power receiving device through the transceiver module.
The charging control method according to claim 11, wherein the transceiver module includes a wired transceiver module and a wireless transceiver module, and the forward charging working state includes at least one of the following: wired forward charging and wireless charging Forward charging; the reverse power supply working state includes at least one of the following: wired reverse power supply and wireless reverse power supply, and the method also includes:

If the wired forward charging is currently in progress, it does not respond to the input signal of the wireless transceiver module;

If it is currently in the wireless forward charging, it does not respond to the input signal of the wired transceiver module;

If it is currently in the wired reverse power supply, it does not respond to the input signal of the wireless transceiver module;

If it is currently in the wireless reverse power supply, it does not respond to the input signal of the wired transceiver module.
The charging control method according to claim 11, wherein the transceiver module includes a wired transceiver module and a wireless transceiver module, and the forward charging working state includes at least one of the following: wired forward charging and wireless charging Forward charging; the reverse power supply working state includes at least one of the following: wired reverse power supply and wireless charging power supply, and the method also includes:

When currently in the wireless forward charging or the wireless reverse power supply, if the input signal of the wired transceiver module is detected, the wireless transceiver module is controlled to enter a sleep state, and the wireless transceiver module is disconnected. Set the connection with the charge pump module, and turn on the connection between the wired transceiver module and the charge pump module to switch to the wired forward charging or the wired reverse power supply.
The charging control method according to any one of claims 11 to 13, wherein the converting the input voltage of the external power supply received through the transceiver module into the first target voltage and then outputting it to the battery includes:

determining the target forward charging mode of operation of the charge pump module;

Controlling the charge pump module to work in the target forward charging mode, and converting the input voltage of the external power supply received by the transceiver module into the first charging mode through the target forward charging mode. a target voltage;

Outputting the first target voltage to the battery.
The charging control method according to claim 14, wherein the determining the target forward charging operation mode of the charge pump module specifically comprises:

A target forward charging operation mode of the charge pump module is determined according to a target parameter, wherein the target parameter includes at least one of the following: current application scenario, current remaining power and charging current.
The charging control method according to any one of claims 11 to 13, wherein the output voltage of the battery is converted into a second target voltage and then output to an external power receiving device through the transceiver module, specifically include:

determining the target reverse power supply mode of the charge pump module;

controlling the charge pump module to work in the target reverse power supply mode, and converting the output voltage of the battery into the second target voltage through the target reverse power supply mode;

Outputting the second target voltage to the external power receiving device through the transceiver module.
A charging chip, characterized by comprising: the charge pump unit in the charging architecture according to any one of claims 1 to 10.
A terminal device, characterized by comprising: the charging architecture according to any one of claims 1 to 10.