CN116345598A - Charging architecture, charging control method, charging chip and terminal equipment - Google Patents

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

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Publication number
CN116345598A
CN116345598A CN202111604941.2A CN202111604941A CN116345598A CN 116345598 A CN116345598 A CN 116345598A CN 202111604941 A CN202111604941 A CN 202111604941A CN 116345598 A CN116345598 A CN 116345598A
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China
Prior art keywords
module
charge pump
charging
transceiver module
pump unit
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CN202111604941.2A
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Chinese (zh)
Inventor
钱平
王彦腾
王也
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to CN202111604941.2A priority Critical patent/CN116345598A/en
Priority to PCT/CN2022/090809 priority patent/WO2023115779A1/en
Publication of CN116345598A publication Critical patent/CN116345598A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • 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
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The disclosure relates to a charging architecture, a charging control method, a charging chip and terminal equipment. Wherein, the framework of charging includes: the charge pump module comprises at least two charge pump units which are connected in parallel, wherein the transceiver module is connected with an external power supply or external power receiving equipment, and the charge pump module is respectively connected with the transceiver module and the battery and comprises a forward charging working mode and a reverse power supply working mode. The high-power single-cell charging framework is constructed, multiple charging functions can be realized, the charging speed and the charging efficiency are improved, and at the battery end, two cells are not connected by a battery connector, so that the battery capacity is greatly improved, and the volume of a battery is reduced.

Description

Charging architecture, charging control method, charging chip and terminal equipment
Technical Field
The disclosure relates to the technical field of charging, and in particular relates to a charging architecture, a charging control method, a charging chip and terminal equipment.
Background
The rechargeable battery is a chargeable battery with limited charging times, the rechargeable battery is usually matched with a charger, most terminal equipment realizes continuous voyage by virtue of the rechargeable battery, along with the continuous development of the battery and a charging technology, the requirements on the charging speed and the charging duration are higher and higher, and most batteries adopt a high-power charging scheme with a double-battery-core framework, so that the scheme has higher cost and limited battery capacity.
Disclosure of Invention
The disclosure provides a charging architecture, a charging control method, a charging chip and terminal equipment, so as to reduce cost and improve battery capacity. The technical scheme of the present disclosure is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided a charging architecture comprising: the charge pump module comprises at least two charge pump units which are connected in parallel, wherein the transceiver module is connected with an external power supply or external power receiving equipment; the charge pump module is respectively connected with the transceiver module and the battery, and comprises a forward charging working mode and a reverse power supply working mode.
In one embodiment of the disclosure, when the transceiver module is connected to the external power supply, the transceiver module is configured to receive an input voltage of the external power supply, and the charge pump module is configured to convert the input voltage into a first target voltage and output the first target voltage to the battery; when the receiving and transmitting module is connected with the external power receiving device, the charge pump module is used for converting the output voltage of the battery into a second target voltage and then outputting the second target voltage to the receiving and transmitting module, and the receiving and transmitting module is used for outputting 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 with the transceiver module, and the second end of the first charge pump unit is connected with the battery; the first end of the second charge pump unit is connected with the transceiver module, and the second end of the second charge pump unit is connected with the battery.
In one embodiment of the present disclosure, the charging architecture further comprises: the first end of the voltage conversion module is connected with the first end of the first charge pump unit, the second end of the voltage conversion module is connected with the system voltage port, and the third end of the voltage conversion module is connected with the first end of the battery.
In one embodiment of the present disclosure, the transceiver module includes a wired transceiver module and a wireless transceiver module; the first detection end of the first charge pump unit is connected with the wired transceiver module, and the second detection end of the first charge pump unit is connected with the wireless transceiver module, wherein the first detection end is used for detecting whether the wired transceiver module has an input signal or not, and the second detection end is used for detecting whether the wireless transceiver module has an input signal or not; the first charge pump unit is configured to: the connection between the wired transceiver module and the first end of the first charge pump unit is switched on or off according to a first control signal, and the connection between the wireless transceiver module and the first end of the first charge pump unit is switched on or off according to a second control signal.
In one embodiment of the present disclosure, the charging architecture further comprises: a first switch module and a second switch module; the wired transceiver module is connected with the first end of the first charge pump unit through the first switch module, and the wireless transceiver module is connected with 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 with the first switch module, and the second control end of the first charge pump unit is connected with the second switch module; the first control end of the first charge pump unit is used for outputting the first control signal, and the second control end of the first charge pump unit is used for outputting the second control signal.
In one embodiment of the present disclosure, the first switch module includes: the first electrode of the first transistor is connected with the wired transceiver module, and the control electrode of the first transistor is connected with the first control end of the first charge pump unit; and the first electrode of the second transistor is connected with the second electrode of the first transistor, the second electrode of the second transistor is connected with the first end of the first charge pump unit, and the control electrode of the second transistor is connected with the first control end of the first charge pump unit.
In one embodiment of the present disclosure, the second switching module includes: a third transistor, a first pole of which is connected to the wireless transceiver, and a control pole of which is connected to a second control terminal of the first charge pump unit; and a first electrode of the fourth transistor is connected with a second electrode of the third transistor, a second electrode of the fourth transistor is connected with a first end of the first charge pump unit, and a control electrode of the fourth transistor is connected with a second control end of the first charge pump unit.
In one embodiment of the present disclosure, the first charge pump unit is configured to: when one detection end of the first detection end and the second detection end has an input signal and the other detection end has no input signal, one of the first switch module and the second switch module, which corresponds to the one detection end with the input signal, is controlled to be conducted; when any one of the first switch module and the second switch module is conducted, the other switch module is controlled to be disconnected; when no input signal is detected at the first detection end and the second detection end, the first switch module and the second switch module are controlled to be disconnected.
In one embodiment of the present disclosure, the first charge pump unit is configured to: when the second detection end has an input signal and the first detection end has no input signal, the second switch module is controlled to be turned on, and the first switch module is controlled to be turned off; when the first detection end detects that an input signal exists, the wireless receiving and transmitting module is controlled to enter a dormant state, the first switch module is controlled to be turned on, and the second switch module is controlled to be turned off; when no input signal is detected at the first detection end and the second detection end, the first switch module and the second switch module are controlled to be disconnected.
According to a second aspect of embodiments of the present disclosure, there is provided a charging control method applied to the charging architecture according to the first aspect of embodiments of the present disclosure, the charging control method including: when the battery is in a forward charging working state, converting the input voltage of an external power supply received through the receiving and transmitting module into a first target voltage and outputting the first target voltage to the battery; when the power supply is in a reverse power supply working state, the output voltage of the battery is converted into a second target voltage and then is output to external power receiving equipment through the transceiver module.
In one embodiment of the present disclosure, the transceiver module includes a wired transceiver module and a wireless transceiver module, and the forward charging operating state includes at least one of the following: wired forward charging and wireless forward charging; the reverse power supply working state at least comprises one of the following: wired reverse powering and wireless reverse powering, the method further comprising: if the wireless transceiver module is currently in the wired forward charging state, not responding to the input signal of the wireless transceiver module; if the wireless forward charging is currently performed, the input signal of the wired transceiver module is not responded; if the wireless transceiver module is currently in the wired reverse power supply, the wireless transceiver module does not respond to the input signal of the wireless transceiver module; and if the wireless power supply is currently in the wireless reverse power supply, not responding to the input signal of the wired transceiver module.
In one embodiment of the present disclosure, the transceiver module includes a wired transceiver module and a wireless transceiver module, and the forward charging operating state includes at least one of the following: wired forward charging and wireless forward charging; the reverse power supply working state at least comprises one of the following: the method further comprises the steps of: when the wireless forward charging or the wireless reverse power supply is performed currently, if an input signal of the wired receiving and transmitting module is detected, the wireless receiving and transmitting module is controlled to enter a dormant state, the connection between the wireless receiving and transmitting module and the charge pump module is disconnected, and the connection between the wired receiving and transmitting module and the charge pump module is conducted so as to switch to the wired forward charging or the wired reverse power supply.
In an embodiment of the disclosure, the converting the input voltage of the external power source received by the transceiver module into the first target voltage and outputting the first target voltage to the battery specifically includes: determining a target forward charging working mode of the charge pump module; the charge pump module is controlled to work in the target forward charging working mode, and the input voltage of the external power supply received by the receiving and transmitting module is converted into the first target voltage through the target forward charging working mode; outputting the first target voltage to the battery.
In one embodiment of the disclosure, the determining the target forward charging operation mode of the charge pump module specifically includes: determining a target forward charging working mode of the charge pump module according to target parameters, wherein the target parameters comprise at least one of the following: current application scenario, current residual capacity and charging current.
In an embodiment of the disclosure, after converting the output voltage of the battery into the second target voltage, outputting the second target voltage to an external power receiving device through the transceiver module, the method specifically includes: determining a target reverse power supply working mode of the charge pump module; controlling the charge pump module to work in the target reverse power supply working mode, and converting the output voltage of the battery into the second target voltage through the target reverse power supply working mode; and outputting the second target voltage to the external power receiving equipment through the transceiver module.
According to a third aspect of embodiments of the present disclosure, there is provided a charging chip, including: a charge pump unit in a charging architecture as described in the first aspect of the present disclosure.
According to a fourth aspect of embodiments of the present disclosure, there is provided a terminal device, including: the charging architecture as described in the third aspect of the present disclosure.
The embodiment of the disclosure provides a technical scheme based on transceiver module, charge pump module and battery, the single electric core framework that can realize high-power charging is constructed to the charge pump module, and the charge pump module includes two at least charge pumps, and two at least charge pumps parallel connection, wherein transceiver module is connected with external power supply or external power receiving equipment, and the charge pump module is connected with transceiver module and battery respectively, and the charge pump module includes forward charging mode and reverse power supply mode to can realize high-power charging based on single electric core, and realize multiple charge function, reduce cost, improve battery capacity.
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 disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure and do not constitute an undue limitation on the disclosure.
Fig. 1 is a schematic diagram illustrating 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 flowchart illustrating a charge control method according to an exemplary embodiment.
Fig. 4 is a flowchart illustrating a charge control method according to another exemplary embodiment.
Fig. 5 is a flowchart illustrating a charge control method according to another exemplary embodiment.
Fig. 6 is a block diagram of a charging chip, according to an example embodiment.
Fig. 7 is a block diagram of a terminal device, according to an example embodiment.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the foregoing figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the disclosure described herein may be capable of operation in sequences other than those illustrated or described herein. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
Fig. 1 is a schematic structural diagram of a charging architecture according to an exemplary embodiment, and as shown in fig. 1, a charging architecture 10 according to an embodiment of the disclosure may specifically include: transceiver module U1, charge pump module U2 and battery BAT1, wherein:
the charge pump module U2 comprises at least two charge pump units, the charge pump units in the charge pump module U2 are connected in parallel to achieve a voltage regulation function, the transceiver module U1 can be connected with an external power supply or external power receiving equipment, the charge pump module U2 is respectively connected with the transceiver module U1 and the battery BAT1, and the charge pump module U2 has a forward charging working mode and a reverse power supply working mode.
The functional distinction of the operation mode of the charge pump module U2 from voltage regulation may include a buck mode, a boost mode, a direct charge mode, and the like, specifically, in the forward charging operation mode may include a forward charging buck mode and a forward direct charge operation mode, for example, a forward 1:1 operation mode, a forward 2:1 operation mode, a forward 4:1 operation mode, and the like, and in the reverse power supply operation mode may include a reverse power supply boost operation mode and a reverse power supply direct charge operation mode, for example, a reverse 1:1 operation mode, a reverse 1:2 operation mode, a reverse 1:4 operation mode, and the like.
In some embodiments, when the transceiver module U1 is connected to an external power source (such as a mobile charging device), the transceiver module U1 is configured to receive an input voltage of the external power source, the charge pump module U2 enters a forward charging mode, converts the received input voltage into a first target voltage, and outputs the first target voltage to the battery BAT1, so that the charging architecture 10 realizes a forward charging function, i.e. charges the battery BAT1 through the external power source.
In some embodiments, when the transceiver module U1 is connected to an external power receiving device (such as a terminal device like a mobile phone), the charge pump module U2 enters a reverse power supply mode, the charge pump module U2 is configured to convert an output voltage of the battery BAT1 into a second target voltage and output the second target voltage to the transceiver module U1, and the transceiver module U1 outputs the second target voltage to the external power receiving device, thereby realizing a reverse power supply function, that is, a process of charging the external power receiving device through the battery BAT 1.
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 a plurality of charge pumps, which is not limited in the embodiment of the present disclosure, for example, the plurality of charge pumps in the first charge pump unit may operate alternately, so as to further optimize charging efficiency.
In the embodiment of the disclosure, the charge pump may be a 4:1dickson type charge pump, and the charge pump may specifically include 17 power tubes and 6 groups of flying capacitors (flying capacitors), and by adjusting the conducting states of the power tubes, different paths are formed to control the charge and discharge of the flying capacitors, and the charge pump generates high voltage through the accumulation effect of the flying capacitors on the charges, so that current flows from low potential to high potential, and thus the voltage input into the charge pump module is adjusted to output the required target voltage, and forward charging and reverse power supply are realized.
For example, based on the charging architecture in the embodiment of the disclosure, when the transceiver module U1 receives the input voltage 20V of the external power supply, the input voltage is respectively passed through two 4 of the charge pump modules: 1 the charge pump unit adjusts the voltage, can obtain the output voltage of 5V, namely the first target voltage of input to the first end of battery is 5V, charge the battery with 5V voltage parallel connection based on two charge pump units respectively.
The charging architecture of the embodiment of the disclosure comprises a receiving and transmitting module, a charge pump module and a battery, wherein the charge pump module comprises at least two charge pump units which are connected in parallel, the receiving and transmitting module is connected with an external power supply or external power receiving equipment, the charge pump module is respectively connected with the receiving and transmitting module and the battery, and the charge pump module comprises a forward charging working mode and a reverse power supply working mode. The high-power single-cell charging framework is constructed, multiple charging functions can be realized, the charging speed and the charging efficiency are improved, and at the battery end, the single-cell is adopted, and the battery connector is not needed to connect two cells, so that the battery capacity is greatly improved, and the volume of the battery is reduced.
On the basis of the above embodiment, 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 disclosure may further include: and a voltage conversion module U3.
The first end of the first charge PUMP unit PUMP1 is connected with the transceiver module U1, and the second end of the first charge PUMP unit PUMP1 is connected with the battery BAT 1; the first end of the second charge PUMP unit PUMP2 is connected with the transceiver module U1, and the second end of the second charge PUMP unit PUMP2 is connected with the battery BAT 1. In some embodiments, the first charge PUMP unit PUMP1 may comprise a 4:1 charge PUMP integrated in the first charging chip, and the second charge PUMP unit PUMP2 may comprise a 4:1 charge PUMP integrated in the second charging chip.
The first end of the voltage conversion module U3 is connected with the first end of the first charge PUMP unit PUMP1, the second end of the voltage conversion module U3 is connected with a system voltage port and is used for outputting the system power supply voltage of the terminal equipment where the battery BAT1 is located, and the third end of the voltage conversion module U3 is connected with the first end of the battery BAT 1. In some embodiments, the voltage conversion module may be a Buck module (Buck charge) or may be integrated into a PMIC (Power Management IC, power management integrated circuit).
For example, 120W of electric energy input into 20V/6A can be reduced to 5V/12A based on a first charge pump unit with the voltage of 4:1 and reduced to 5V/12A based on a second charge pump unit with the voltage of 4:1, and then the first charge pump unit and the second charge pump unit respectively reduce the input voltage and convert the input voltage to output to a 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 electric energy which can be 5V/24A is output to the battery, thereby realizing high-power single-cell charging of 120W.
In the embodiment of the disclosure, a high-power charging architecture can be constructed by two charge pump units and single cells which are connected in parallel, namely, high-power charging with voltage reduction and current increase can be realized based on two charging chips, so that the charging efficiency is improved, two battery cores are not needed, and the battery capacity is improved.
In some possible embodiments, the transceiver module U1 may include a wired transceiver module U4 and a wireless transceiver module U5, where when the wired transceiver module U4 is connected to an external power source, the charging architecture 10 may implement wired forward charging, and when the wired transceiver module U4 is connected to an external power receiving device, the charging architecture 10 may implement wired reverse power supply; when being connected with external power supply through wireless transceiver module U5, charging structure 10 can realize wireless forward charging, and when being connected with external power receiving equipment through wireless transceiver module U5, charging structure 10 can realize wireless reverse power supply.
Therefore, the wireless charging and the wired charging can be realized based on the single-battery-core charging architecture in the embodiment of the disclosure, namely, the four modes of wireless forward charging/reverse power supply and wired forward charging/reverse power supply can be realized based on the charging architecture in the embodiment of the disclosure, so that the cost can be reduced, the occupied area of the whole scheme can be reduced, and the like.
Because the wired charging and the wireless charging share one path, the switching between the wired charging and the wireless charging is required, so that the wired charging and the wireless charging can be guaranteed to be performed normally, in the embodiment of the disclosure, the first detection end of the first charge PUMP unit PUMP1 is connected with the wired transceiver module U4, the second detection end of the first charge PUMP unit PUMP1 is connected with the wireless transceiver module U5, the first detection end is used for detecting whether the wired transceiver module U4 has an input signal (i.e., detecting whether the wired transceiver module U4 is connected with an external power source or an external power receiving device), the second detection end is used for detecting whether the wireless transceiver module U5 has an input signal (i.e., detecting whether the wireless transceiver module U5 is connected with the external power source or the external power receiving device), the first charge PUMP unit PUMP1 generates a first control signal or a second control signal according to the detection result, and the first charge PUMP unit PUMP1 turns on or off the connection between the wired transceiver module U4 and the first end of the first charge PUMP unit PUMP1 according to the second control signal or turns on or off the connection between the wireless transceiver module U5 and the first end of the first charge PUMP unit PUMP 1.
Further, in the embodiment of the disclosure, a first switch module U6 is disposed between the first charge PUMP unit PUMP1 and the wired transceiver module U4, and a second switch module U7 is disposed between the first charge PUMP unit PUMP1 and the wireless transceiver module U5.
The wired transceiver module U4 is connected with the first end of the first charge PUMP unit PUMP1 through the first switch module U6, and the wireless transceiver module U5 is connected with the first end of the first charge PUMP unit PUMP1 through the second switch module U7; the first control end of the first charge PUMP unit PUMP1 is connected with the first switch module U6, and the second control end of the first charge PUMP unit PUMP1 is connected with the second switch module U7. The first charge PUMP unit PUMP1 outputs a first control signal through a first control end, controls the connection or disconnection of the first switch module U6, thereby controlling the connection or disconnection of the wired transceiver module U4 and the first end of the first charge PUMP unit PUMP1, and the first charge PUMP unit PUMP1 outputs a second control signal through a second control end, thereby controlling the connection or disconnection of the second switch module U7, thereby controlling the connection or disconnection of the wireless transceiver module U5 and the first end of the first charge PUMP unit PUMP 1.
Wherein the first switch module U6 includes: the first transistor Q1 and the second transistor Q2 may be metal oxide semiconductor field effect transistors, a first electrode (drain D) of the first transistor Q1 is connected to the wired transceiver module U4, and a control electrode (gate G) of the first transistor Q1 is connected to a first control terminal of the first charge PUMP unit PUMP 1; the first pole (drain D) of the second transistor Q2 is connected to the second pole (source S) of the first transistor Q1, the second pole (source S) of the second transistor Q2 is connected to the first terminal of the first charge PUMP unit PUMP1, and the control pole (gate G) of the second transistor Q2 is connected to the first control terminal of the first charge PUMP unit PUMP 1. The two metal oxide semiconductor field effect transistors are connected in series back to form a first switch module, and the on state of the two metal oxide semiconductor field effect transistors is controlled through the first charge pump unit, so that the first switch module is controlled to be turned on or off.
The second switching module U7 includes: the third transistor Q3 and the fourth transistor Q4, the third transistor Q3 and the fourth transistor Q4 may be metal oxide semiconductor field effect transistors, a first electrode (drain D) of the third transistor Q3 is connected to the wireless transceiver module U5, and a control electrode (gate G) of the third transistor Q3 is connected to the second control end of the first charge PUMP unit PUMP 1; the first pole (drain D) of the fourth transistor Q4 is connected to the second pole (source S) of the third transistor Q3, the second pole (source S) of the fourth transistor Q4 is connected to the first terminal of the first charge PUMP unit PUMP1, and the control pole (gate G) of the fourth transistor Q4 is connected to the second control terminal of the first charge PUMP unit PUMP 1. The two metal oxide semiconductor field effect transistors are connected in series back to form a second switch module, and the on state of the two metal oxide semiconductor field effect transistors is controlled through the first charge pump unit, so that the second switch module is controlled to be turned on or off.
Based on the above embodiments, the embodiments of the present disclosure may implement a "first-to-first-obtained" switching manner: the charging structure is one end of the wireless receiving and transmitting module and the wired receiving and transmitting module, which is connected with an external power supply or external power receiving equipment, to provide forward charging/reverse power supply functions.
In specific implementation, when detecting that one of the first detection end and the second detection end has an input signal and the other detection end has no input signal, the first charge PUMP unit PUMP1 controls one of the first switch module U6 and the second switch module U7 to be turned on, corresponding to the one detection end having the input signal, and controls the other switch module to be turned off when any one of the first switch module U6 and the second switch module U7 is turned on; when no input signal is detected at the first detection end and the second detection end, the first switch module U6 and the second switch module U7 are controlled to be disconnected.
For example, when the wireless transceiver module receives the wireless charging input signal and the wired transceiver module does not receive the wired charging input signal, the first charge pump unit detects that the second detection end has the input signal and the first detection end has no input signal, and at this time, the first charge pump unit controls the second switch module to be turned on and the first switch module to be turned off, so that the wireless charging channel is turned on and the wired charging channel is turned off.
In addition to the above-mentioned "first-come first-get" switching manner, the embodiments of the present disclosure may also set a "priority" switching manner, for example, a "wired priority" switching manner, that is, wired charging is performed whenever there is signal access to the wired path, regardless of whether there is signal access to the wireless path.
In specific implementation, when detecting that the second detection end has an input signal and the first detection end has no input signal, the first charge PUMP unit PUMP1 controls the second switch module U7 to be turned on and controls the first switch module U6 to be turned off; when an input signal is detected at the first detection end, controlling the wireless receiving and transmitting module U5 to enter a dormant state, controlling the first switch module U6 to be turned on and controlling the second switch module U7 to be turned off; when no input signal is detected at the first detection end and the second detection end, the first switch module U5 and the second switch module U6 are controlled to be disconnected.
The first charge PUMP unit PUMP1 controls the wireless transceiver module U5 to enter a sleep state when detecting that the first detection end has an input signal, and may be implemented through software control, for example, when the first detection end detects that the first detection end has an input signal, a signal is sent to the processor, so that the processor controls the wireless transceiver module to enter the sleep state.
Illustrating: when the wireless receiving and transmitting module receives an input signal of wireless charging and the wireless charging channel is started, if the first charge pump unit detects that the first detection end has the input signal, the second switch module is controlled to be disconnected, the wireless charging channel is cut off, the first switch module is controlled to be conducted, the wired charging channel is started, and wired charging is executed.
Therefore, the embodiment of the disclosure can realize wireless charging (wireless forward charging and wireless reverse power supply) and wired charging (wired forward charging and wired reverse power supply), for example, in a mobile phone charging scene, through two charging chips comprising a 4:1 charge pump, wired 120W and wireless 50W charging can be simultaneously supported, meanwhile, based on the voltage regulation function of the charge pump module, the charging architecture of the embodiment of the disclosure can realize various working modes, for example, in a forward charging 1:1 working mode, a scene or a high-power scene can be used on a bright screen, when the charging current is reduced to below 5A, the charging is carried out by adopting the forward charging 1:1 working mode, the charging efficiency can be improved, and the temperature rise is further reduced; for another example, high-power quick charging can be realized based on a forward charging 2:1 working mode, more chargers can be compatible, for example, a PPS charger compatible with a common 11V gear is compatible, and 33W or 67W high-power quick charging is realized; for another example, high-power wireless reverse power supply and wired reverse power supply can be realized based on a reverse power supply 1:2/1:4 working mode, for example, 20W-30W reverse power supply can be realized, so that a charging structure is simplified, and the cost is reduced.
To achieve the above embodiments, the present disclosure further proposes a charging control method, and fig. 3 is a flowchart illustrating a charging control method according to an exemplary embodiment. As shown in fig. 3, the charging control method according to the embodiment of the disclosure may specifically include the following steps:
S301, when the battery is in a forward charging working state, converting the input voltage of the external power supply received through the receiving and transmitting module into a first target voltage and outputting the first target voltage to the battery.
The charging control method of the embodiment of the present disclosure may be applied to the charging architecture of any one of the embodiments described above, and the charging architecture may be disposed in a charging chip, so that a terminal device provided with the charging chip may implement the charging control method of the embodiment of the present disclosure.
In the embodiment of the 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 the power supply is in a reverse power supply working state, the output voltage of the battery is converted into a second target voltage and then is output to the external power receiving equipment through the transceiver module.
In the embodiment of the disclosure, when the terminal device is in a 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 is output to the external power receiving device through the transceiver module.
According to the charging control method, when the charging control device is in a forward charging working state, the input voltage of the external power supply received through the receiving and transmitting module is converted into a first target voltage and then is output to the battery, and when the charging control device is in a reverse power supply working state, the output voltage of the battery is converted into a second target voltage and then is output to the external power receiving device through the receiving and transmitting module. Therefore, various charging functions can be realized, and the charging architecture is simplified.
In the embodiment of the disclosure, the transceiver module includes a wired transceiver module and a wireless transceiver module, so the forward charging operating state may include at least one of the following: the wired forward charging and wireless forward charging, and the reverse power supply working state at least can comprise one of the following: the method for controlling charging according to the present disclosure further includes: the switching method of the four working states of wired forward charging, wireless forward charging, wired reverse power supply and wireless reverse power supply specifically comprises the following possible embodiments:
if the terminal device is currently in the wired forward charging working state, the wired transceiver module can be considered to be currently connected with the external power supply and receive the input voltage of the external power supply, and in this case, the wired transceiver module can not respond to the input signal of the wireless transceiver module, that is, whether the wireless transceiver module is connected with the external power supply or the external power receiving device or not, the current wired forward charging working state is maintained.
If the terminal device is currently in the wireless forward charging working state, the wireless transceiver module is considered to be currently connected with the external power supply, receives the input voltage of the external power supply, and in this case, the wireless transceiver module can not respond to the input signal of the wired transceiver module, that is, whether the wired transceiver module is connected with the external power supply and the external power receiving device or not, the existing wireless forward charging working state is maintained.
If the terminal device is currently in the wired reverse power supply working state, the wired transceiver module is considered to be connected with the external power receiving device and output voltage to the external power receiving device, and in this case, the present disclosure does not respond to the input signal of the wireless transceiver module, that is, whether the wireless transceiver module is connected with the external power supply or the external power receiving device or not, the current wired reverse power supply working state is maintained.
If the terminal device is currently in the wireless reverse power supply working state, the wireless transceiver module is considered to be connected with the external power receiving device and output voltage to the external power receiving device, and in this case, the input signal of the wired transceiver module can not be responded, that is, whether the wired transceiver module is connected with the external power supply and the external power receiving device or not can keep the existing wireless reverse power supply working state.
Therefore, the charging control method of the embodiment of the disclosure can realize switching of four working states of wired forward charging, wireless forward charging, wired reverse power supply and wireless reverse power supply based on a first-come-go mode.
In addition, the charging control method of the embodiment of the disclosure can realize switching of four working states of wired forward charging, wireless forward charging, wired reverse power supply and wireless reverse power supply based on a wired priority mode.
In specific implementation, when the terminal device is currently in a wireless forward charging or wireless reverse power supply working state, if an input signal of the wired transceiver module is detected, the wireless transceiver module is controlled to enter a dormant state, the connection between the wireless transceiver module and the charge pump module is disconnected, and the connection between the wired transceiver module and the charge pump module is conducted so as to be switched to the wired forward charging or wired reverse power supply state.
In some possible embodiments, as shown in fig. 4, in the case of the forward charging working state, the method may specifically include the following steps of:
s401, determining a target forward charging working mode of the charge pump module.
In the embodiment of the disclosure, the working modes of the charge pump module may be determined according to related target parameters, for example, when the application scenario, the current residual capacity, the charging current, and the like, where the working modes of the charge pump module may include a buck mode, a boost mode, a direct charge mode, and the like according to the voltage regulation manner.
When the terminal equipment is in the forward charging working state, a target forward charging working mode of the charge pump module can be determined according to target parameters such as the current application scene, the current residual electric quantity and the charging current.
For example, when the bright screen use scene or the high-power scene is not higher than 5A and the charging current is not higher than 5A, the working state of the charge pump module is determined to be a positive 1:1 charging working mode.
S402, the charge pump module is controlled to work in a target forward charging working mode, and the input voltage of the external power supply received through the receiving and transmitting module is converted into a first target voltage through the target forward charging working mode.
In the embodiment of the disclosure, the working state of components in the charge pump module is adjusted by adjusting the parameters of the charge pump module, so that the charge pump module is controlled to work in a target forward charging working mode, voltage adjustment is performed through the target forward charging working mode, and the input voltage of an external power supply received through the receiving and transmitting module is converted into a 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 a scenario of a reverse power supply working state, an input voltage of an external power supply received through a transceiver module is converted into a first target voltage and then output to a battery, and the method specifically may include the following steps:
s501, determining a target reverse power supply working mode of the charge pump module.
S502, controlling the charge pump module to work in a target reverse power supply working mode, and converting the output voltage of the battery into a second target voltage through the target reverse power supply working mode.
S503, outputting the second target voltage to the external power receiving device through the transceiver module.
It should be noted that, the implementation manner of the embodiment of the present disclosure is similar to that of the above implementation manner, and will not be repeated here.
According to the charging control method, when the charging control device is in a forward charging working state, the input voltage of the external power supply received through the receiving and transmitting module is converted into a first target voltage and then is output to the battery, and when the charging control device is in a reverse power supply working state, the output voltage of the battery is converted into a second target voltage and then is output to the external power receiving device through the receiving and transmitting module. Therefore, various charging functions can be realized, and the charging architecture is simplified.
To implement the above-described embodiments, the present disclosure also proposes a charging chip, and fig. 6 is a block diagram of a charging chip shown according to an exemplary embodiment. As shown in fig. 6, a charging chip 600 of an embodiment of the present disclosure includes: the charge pump unit in the charging architecture 10 described above. For example, the charge chip 600 includes the first charge PUMP unit PUMP1 described above, or the charge chip 600 includes the second charge PUMP unit PUMP2 described above.
For example, in the embodiment of the present disclosure, based on two charging chips 600, the two charging chips 600 have the same function, and the two charging chips 600 are used in parallel, and are respectively connected with a transceiver module (i.e., including a wired transceiver module and a wireless transceiver module) and a battery, so as to implement a high-power single-chip charging architecture.
To implement the above-described embodiments, the present disclosure also proposes a terminal device, and fig. 7 is a block diagram of a terminal device shown according to an exemplary embodiment. As shown in fig. 7, a terminal device 700 of an embodiment of the present disclosure includes: the charging architecture 10 described above.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (18)

1. A charging architecture, comprising: the charge pump module comprises at least two charge pump units which are connected in parallel, wherein,
The receiving and transmitting module is connected with an external power supply or external power receiving equipment;
the charge pump module is respectively connected with the transceiver module and the battery, and comprises a forward charging working mode and a reverse power supply working mode.
2. The charging architecture according to claim 1, wherein when the transceiver module is connected to the external power supply, the transceiver module is configured to receive an input voltage of the external power supply, and the charge pump module is configured to convert the input voltage into a first target voltage and output the first target voltage to the battery;
when the receiving and transmitting module is connected with the external power receiving device, the charge pump module is used for converting the output voltage of the battery into a second target voltage and then outputting the second target voltage to the receiving and transmitting module, and the receiving and transmitting module is used for outputting the second target voltage to the external power receiving device.
3. The charging architecture of claim 1 or 2, wherein the charge pump module comprises a first charge pump unit and a second charge pump unit, wherein:
the first end of the first charge pump unit is connected with the transceiver module, and the second end of the first charge pump unit is connected with the battery;
The first end of the second charge pump unit is connected with the transceiver module, and the second end of the second charge pump unit is connected with the battery.
4. The charging architecture of claim 3, further comprising:
the first end of the voltage conversion module is connected with the first end of the first charge pump unit, the second end of the voltage conversion module is connected with the system voltage port, and the third end of the voltage conversion module is connected with the first end of the battery.
5. The charging architecture of claim 3, wherein the transceiver module comprises a wired transceiver module and a wireless transceiver module; the first detection end of the first charge pump unit is connected with the wired transceiver module, and the second detection end of the first charge pump unit is connected with the wireless transceiver module, wherein the first detection end is used for detecting whether the wired transceiver module has an input signal or not, and the second detection end is used for detecting whether the wireless transceiver module has an input signal or not;
the first charge pump unit is configured to: the connection between the wired transceiver module and the first end of the first charge pump unit is switched on or off according to a first control signal, and the connection between the wireless transceiver module and the first end of the first charge pump unit is switched on or off according to a second control signal.
6. The charging architecture of claim 5, further comprising: a first switch module and a second switch module;
the wired transceiver module is connected with the first end of the first charge pump unit through the first switch module, and the wireless transceiver module is connected with 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 with the first switch module, and the second control end of the first charge pump unit is connected with the second switch module;
the first control end of the first charge pump unit is used for outputting the first control signal, and the second control end of the first charge pump unit is used for outputting the second control signal.
7. The charging architecture of claim 6, wherein the first switch module comprises:
the first electrode of the first transistor is connected with the wired transceiver module, and the control electrode of the first transistor is connected with the first control end of the first charge pump unit;
and the first electrode of the second transistor is connected with the second electrode of the first transistor, the second electrode of the second transistor is connected with the first end of the first charge pump unit, and the control electrode of the second transistor is connected with the first control end of the first charge pump unit.
8. The charging architecture of claim 6, wherein the second switch module comprises:
a third transistor, a first electrode of which is connected with the wireless transceiver module, and a control electrode of which is connected with a second control end of the first charge pump unit;
and a first electrode of the fourth transistor is connected with a second electrode of the third transistor, a second electrode of the fourth transistor is connected with a first end of the first charge pump unit, and a control electrode of the fourth transistor is connected with a second control end of the first charge pump unit.
9. The charging architecture of any one of claims 6-8, wherein the first charge pump unit is configured to:
when one detection end of the first detection end and the second detection end has an input signal and the other detection end has no input signal, one of the first switch module and the second switch module, which corresponds to the one detection end with the input signal, is controlled to be conducted;
when any one of the first switch module and the second switch module is conducted, the other switch module is controlled to be disconnected;
When no input signal is detected at the first detection end and the second detection end, the first switch module and the second switch module are controlled to be disconnected.
10. The charging architecture of any one of claims 6-8, wherein the first charge pump unit is configured to:
when the second detection end has an input signal and the first detection end has no input signal, the second switch module is controlled to be turned on, and the first switch module is controlled to be turned off;
when the first detection end detects that an input signal exists, the wireless receiving and transmitting module is controlled to enter a dormant state, the first switch module is controlled to be turned on, and the second switch module is controlled to be turned off;
when no input signal is detected at the first detection end and the second detection end, the first switch module and the second switch module are controlled to be disconnected.
11. A charge control method applied to the charging architecture of any one of claims 1 to 10, the charge control method comprising:
when the battery is in a forward charging working state, converting the input voltage of an external power supply received through the receiving and transmitting module into a first target voltage and outputting the first target voltage to the battery;
When the power supply is in a reverse power supply working state, the output voltage of the battery is converted into a second target voltage and then is output to external power receiving equipment through the transceiver module.
12. The charge control method of claim 11, wherein the transceiver module comprises a wired transceiver module and a wireless transceiver module, and the forward charging operating state comprises at least one of: wired forward charging and wireless forward charging; the reverse power supply working state at least comprises one of the following: wired reverse powering and wireless reverse powering, the method further comprising:
if the wireless transceiver module is currently in the wired forward charging state, not responding to the input signal of the wireless transceiver module;
if the wireless forward charging is currently performed, the input signal of the wired transceiver module is not responded;
if the wireless transceiver module is currently in the wired reverse power supply, the wireless transceiver module does not respond to the input signal of the wireless transceiver module;
and if the wireless power supply is currently in the wireless reverse power supply, not responding to the input signal of the wired transceiver module.
13. The charge control method of claim 11, wherein the transceiver module comprises a wired transceiver module and a wireless transceiver module, and the forward charging operating state comprises at least one of: wired forward charging and wireless forward charging; the reverse power supply working state at least comprises one of the following: the method further comprises the steps of:
When the wireless forward charging or the wireless reverse power supply is performed currently, if an input signal of the wired receiving and transmitting module is detected, the wireless receiving and transmitting module is controlled to enter a dormant state, the connection between the wireless receiving and transmitting module and the charge pump module is disconnected, and the connection between the wired receiving and transmitting module and the charge pump module is conducted so as to switch to the wired forward charging or the wired reverse power supply.
14. The method for controlling charging according to any one of claims 11 to 13, wherein the step of converting the input voltage of the external power source received through the transceiver module into the first target voltage and outputting the first target voltage to the battery includes:
determining a target forward charging working mode of the charge pump module;
the charge pump module is controlled to work in the target forward charging working mode, and the input voltage of the external power supply received by the receiving and transmitting module is converted into the first target voltage through the target forward charging working mode;
outputting the first target voltage to the battery.
15. The charge control method of claim 14, wherein the determining the target forward charging mode of the charge pump module specifically comprises:
Determining a target forward charging working mode of the charge pump module according to target parameters, wherein the target parameters comprise at least one of the following: current application scenario, current residual capacity and charging current.
16. The method according to any one of claims 11 to 13, wherein the converting the output voltage of the battery into the second target voltage and outputting the second target voltage to an external power receiving device through the transceiver module specifically includes:
determining a target reverse power supply working mode of the charge pump module;
controlling the charge pump module to work in the target reverse power supply working mode, and converting the output voltage of the battery into the second target voltage through the target reverse power supply working mode;
and outputting the second target voltage to the external power receiving equipment through the transceiver module.
17. A charging chip, comprising: the charge pump unit in a charging architecture of any of claims 1-10.
18. A terminal device, comprising: the charging architecture of any one of claims 1-10.
CN202111604941.2A 2021-12-24 2021-12-24 Charging architecture, charging control method, charging chip and terminal equipment Pending CN116345598A (en)

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