CN117833427A

CN117833427A - Electric quantity adjusting circuit and electronic equipment

Info

Publication number: CN117833427A
Application number: CN202311870008.9A
Authority: CN
Inventors: 陈社彪; 田晨
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2023-12-29
Filing date: 2023-12-29
Publication date: 2024-04-05

Abstract

The invention discloses an electric quantity adjusting circuit and electronic equipment, wherein in the electric quantity adjusting circuit, a control module is arranged to control the electric quantity stored by a first energy storage module and a second energy storage module to be in a bidirectional transfer state in the process of supplementing electric quantity and/or releasing electric quantity by the first energy storage module and the second energy storage module, so that the electric quantity stored by the first energy storage module can be transferred to the second energy storage module, and the electric quantity stored by the second energy storage module can be transferred to the first energy storage module.

Description

Electric quantity adjusting circuit and electronic equipment

Technical Field

Embodiments of the present disclosure relate to battery technology, and more particularly, but not exclusively, to a power adjustment circuit and an electronic device.

Background

For devices powered by two batteries connected in series, such as a mobile phone and a tablet personal computer, the normal working requirements of the electronic device are usually maintained by using the electric quantity and the electric quantity released by the two batteries connected in series, so that the electric quantity of each battery needs to be correspondingly adjusted in the process of supplementing the electric quantity and releasing the electric quantity to achieve the corresponding working requirements, for example, if the two batteries are required to be simultaneously full or simultaneously empty, the electric quantity of the two batteries needs to be controlled to achieve a real-time balanced state, i.e. the electric quantities of the two batteries are equal or close.

However, in the prior art, a consumption element is generally disposed to execute an electric quantity adjustment process required by a working requirement, for example, if two batteries are required to be filled or discharged simultaneously, the electric quantity consumption element is controlled to be in a working state, so that redundant electric quantity in the two batteries is consumed, and the two batteries are realized to be filled or discharged simultaneously.

Disclosure of Invention

In view of this, the electric quantity adjusting circuit and the electronic device provided by the embodiment of the application can reduce the loss of the electric quantity of the battery and improve the working efficiency of the battery while meeting the electric quantity adjusting requirement.

In a first aspect, an electric quantity adjusting circuit provided in an embodiment of the present application, the circuit includes a first energy storage module, a second energy storage module and a control module connected in series, wherein:

the first energy storage module and the second energy storage module are both used for storing electric quantity;

the control module is used for controlling the electric quantity stored by the first energy storage module and the second energy storage module to be in a bidirectional transfer state in the process of supplementing electric quantity and/or releasing electric quantity by the first energy storage module and the second energy storage module; when the electric quantity of the first energy storage module and the second energy storage module is in the bidirectional transfer state, the electric quantity is transferred from the first energy storage module to the second energy storage module through a first passage, or the electric quantity is transferred from the second energy storage module to the first energy storage module through a second passage; wherein the control module includes a plurality of switching elements, and the first path and the second path are formed by controlling the turning-on and turning-off of the plurality of switching elements.

In the electric quantity adjusting circuit, the control module is arranged, so that the electric quantity stored in the first energy storage module and the electric quantity stored in the second energy storage module are controlled to be in a bidirectional transfer state in the process of supplementing the electric quantity and/or releasing the electric quantity, the electric quantity stored in the first energy storage module can be transferred to the second energy storage module, and the electric quantity stored in the second energy storage module can be transferred to the first energy storage module.

In a second aspect, an embodiment of the present application provides an electronic device, where the electronic device includes the power adjustment circuit according to the first aspect.

It should be understood that, the second aspect of the embodiments of the present application is consistent with the technical solution of the first aspect of the embodiments of the present application, and the beneficial effects obtained by each aspect and the corresponding possible implementation manner are similar, and are not repeated.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the technical aspects of the application.

FIG. 1 is a schematic diagram of a power adjustment circuit in the prior art;

fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of an electric quantity adjusting circuit according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a control module according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a bidirectional conversion unit according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a bidirectional conversion unit according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a bidirectional conversion unit according to an embodiment of the present application;

fig. 8 is a schematic diagram of an implementation structure of a bidirectional conversion unit according to an embodiment of the present application;

fig. 9 is a current flow chart when the second energy storage module transfers electric quantity to the first energy storage module according to the embodiment of the present application;

fig. 10 is a current flow chart when the first energy storage module transfers electric quantity to the second energy storage module according to the embodiment of the present application;

fig. 11 is a schematic diagram of an implementation structure of an electric quantity adjusting circuit according to an embodiment of the present application;

Fig. 12 is a schematic diagram of an implementation structure of an electric quantity adjusting circuit according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

For the purposes, technical solutions and advantages of the embodiments of the present application to be more apparent, the specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are illustrative of the present application, but are not intended to limit the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the present application.

In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with one another without conflict.

It should be noted that the term "first/second/third" in reference to the embodiments of the present application is used to distinguish similar or different objects, and does not represent a specific ordering of the objects, it being understood that the "first/second/third" may be interchanged with a specific order or sequence, as permitted, to enable the embodiments of the present application described herein to be implemented in an order other than that illustrated or described herein.

Fig. 1 is a schematic diagram of a power adjustment circuit in the prior art, as shown in fig. 1, a first battery BT1 is connected in parallel with a switch S1 and a resistor R1, and a second battery BT2 is connected in parallel with the switch S2 and the resistor R2, so that power adjustment of corresponding batteries is achieved by controlling the working states of the resistors, for example, when the power of the two batteries needs to be controlled to reach a real-time equilibrium state, when the power of the first battery BT1 is greater than the power of the second battery BT2, the switch S1 connected in parallel with the first battery BT1 is controlled to be turned on, so that the resistor R1 is in a working state, thereby reducing the power of the first battery BT1 until the power of the first battery BT1 is equal to or close to the power of the second battery BT2, but when the scheme is used, part of energy of the first battery BT1 is lost by the resistor R1, and battery utilization is reduced.

In view of this, the embodiment of the present application provides an electric quantity adjusting circuit, which is applied to an electronic device, so that a first energy storage module and a second energy storage module that work on the electronic device can realize mutual transfer of electric quantity. The electronic device may be various types of devices having information processing capabilities in an implementation. For example, the electronic device may include a personal computer, a notebook computer, a palm top computer, a server, or the like; the electronic device may also be a mobile terminal, which may include a mobile phone, a car computer, a tablet computer, a projector, or the like, for example. The functions performed by the method may be performed by a processor in an electronic device, which may of course be stored in a computer storage medium, as will be seen, comprising at least a processor and a storage medium.

Fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 2, the electronic device may include a processor 110, a universal serial bus (universal serial bus, USB) interface 130, a charge management module 140, a power management module 141, and an energy storage module 142.

It should be understood that the illustrated structure of the present embodiment does not constitute a specific limitation on the electronic device 10. In other embodiments of the present application, the electronic device 10 may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, such as: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors. By way of example, the processor 110 may be a smart terminal CPU, such as a Snapdragon family processor, or the like. In some embodiments, the processor 110 may include one or more interfaces. The interfaces may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous receiver transmitter (universal asynchronous receiver/transmitter, UART) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose input/output (GPIO) interface, a subscriber identity module (subscriber identity module, SIM) interface, and/or a universal serial bus (universal serial bus, USB) interface, among others.

It should be understood that the interfacing relationship between the modules illustrated in the embodiments of the present application is only illustrative and not limiting on the structure of the electronic device 10. In other embodiments of the present application, the electronic device 10 may also employ different interfacing manners, or a combination of interfacing manners, as in the above embodiments.

The charge management module 140 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. The power management module 141 is respectively connected with the energy storage module 142, and the charging management module 140 is connected with the processor 110. The power management module 141 is configured to receive input from the energy storage module 142 and/or the charge management module 140, and supply power to the processor 110, the internal memory 121, the display 170, the wireless communication module 160, etc., and the energy storage module 142 is a battery, a cell, etc. The power management module 141 includes a power adjustment circuit provided herein.

In addition, the electronic device according to the embodiment of the present application may further be provided with an operating system, on which an application program may be installed and run, which is not limited in the embodiment of the present application.

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Fig. 3 is a schematic structural diagram of an electric quantity adjusting circuit according to an embodiment of the present application. As shown in fig. 3, the power adjustment circuit may include a first energy storage module 101, a second energy storage module 102, and a control module 103 connected in series, wherein:

a first energy storage module 101 and a second energy storage module 102 for storing electric power;

the control module 103 is configured to control the electric quantities stored in the first energy storage module 101 and the second energy storage module 102 to be in a bidirectional transfer state during the process of supplementing the electric quantities and/or releasing the electric quantities by the first energy storage module 101 and the second energy storage module 102;

when the electric quantity of the first energy storage module 101 and the second energy storage module 102 is in a bidirectional transfer state, the electric quantity is transferred from the first energy storage module 101 to the second energy storage module 102 through a first path, or the electric quantity is transferred from the second energy storage module 102 to the first energy storage module 101 through a second path;

the control module comprises a plurality of switching elements, and a first passage and a second passage are formed by controlling the switching-on and switching-off of the plurality of switching elements.

In the implementation process, when the first energy storage module 101 and the second energy storage module 102 are in the process of supplementing electric quantity and releasing electric quantity, the control module 103 can make the first energy storage module and the second energy storage module form a first passage by controlling the switches to be in the first conduction sequence, so that the electric quantity stored in the first energy storage module 101 can be directly transferred to the second energy storage module 102, and can make the first energy storage module and the second energy storage module form a second passage by controlling the switches to be in the second conduction sequence, so that the electric quantity stored in the second energy storage module 102 can be directly transferred to the first energy storage module 101, and therefore, the mutual transfer of the electric quantity of the first energy storage module 101 and the second energy storage module 102 is realized, the electric quantity of the energy storage modules is not required to be transferred through an electric quantity consumption element in the prior art, and the loss of battery electric quantity is reduced.

Optionally, the triggering condition that the control module 103 controls the stored electric quantity to be in the bidirectional transfer state may be a control instruction of the receiving electronic device, or may be that when the size relationship between the first energy storage module 101 and the second energy storage module 102 meets the transfer condition, the triggering condition may be specifically set by a person skilled in the art according to the actual situation, which is not limited in this application.

Alternatively, the first energy storage module 101 may be a battery, or may be an electric core.

Alternatively, the first energy storage module 101 may include at least one battery connected in series with each other, and the second energy storage module 102 may include at least one battery connected in series with each other. In other words, in the embodiment of the present invention, at least one cell connected in series with each other is packaged into a single cell, so that the first energy storage module 101 is formed by the single cell; it is also possible to package at least one cell connected in series with each other into a plurality of cells, thereby forming the first energy storage module 101 from the plurality of cells. For example, the battery may be a battery cell including a first cell a and a second cell b connected in series with each other. As another example, the battery may be two batteries, one of which contains a first cell a and the other of which contains a second cell b.

Alternatively, the first and second paths may be formed by controlling the turn-on sequence of the plurality of switching elements after forming a series path between the plurality of switching elements, or may be formed by controlling the turn-on of the switches of the corresponding paths after forming two paths in parallel between the plurality of switching elements.

Illustratively, taking two paths in parallel between a plurality of switching elements as an example, the first path and the second path are formed by controlling the conduction of the switches of the corresponding paths, the plurality of switching elements include a first part of switching elements and a second part of switching elements, the first part of switching elements and the second part of switching elements are all connected in parallel between the first energy storage module 101 and the second energy storage module 102, the first path is formed between the first part of switching elements, the second path is formed between the second part of switching elements, and when the first part of switching elements are all conducted, the first path is formed between the first energy storage module 101 and the second energy storage module 102, and the electric quantity of the first energy storage module 101 is transferred to the second energy storage module 102 through the first path; when the second part of the switching elements are all turned on, a second path is formed between the first energy storage module 101 and the second energy storage module 102, and the electric quantity of the second energy storage module 102 is transferred to the first energy storage module 101 through the second path, so that the control module forms a first path or a second path between the first energy storage module 101 and the second energy storage module 102 by controlling the on-off states of the first part of the switching elements and the second part of the switching elements.

Illustratively, the first path and the second path are formed by controlling the turn-on sequence of the plurality of switching elements after the series path is formed between the plurality of switching elements, the plurality of switching elements are distributed between the first energy storage module 101 and the second energy storage module 102, a first part of switching elements of at least two switching elements is disposed at one end of the control module 103 connected to the first energy storage module 101, a second part of switching elements of at least two switching elements is disposed at one end of the control module 103 connected to the second energy storage module 102, and at least one energy storage element is connected between the first part of switching elements and the second part of switching elements. The control module 103 determines a current transfer direction of the electric quantity by controlling the on-off states of the at least two switching elements, for example, from the first energy storage module to the second energy storage module or from the second energy storage module to the first energy storage module. The control module 103 may send driving signals to the first part of switching elements and the second part of switching elements according to a certain time sequence, so as to control the energy transfer direction and the energy transfer speed between the first energy storage module 101 and the second energy storage module 102.

The at least one energy storage element is used for storing the electric quantity flowing in from the first energy storage module and outputting the electric quantity to the second energy storage module under the condition that the current transfer direction is from the first energy storage module to the second energy storage module, or storing the electric quantity flowing in from the second energy storage module and outputting the electric quantity to the first energy storage module under the condition that the current transfer direction is from the second energy storage module to the first energy storage module, so that the transfer of the electric quantity is completed.

In some embodiments, the switching element may be a switch or a metal oxide semiconductor (metal oxide semiconductor, MOS) tube, and the energy storage element may be an inductor or a capacitor.

Illustratively, taking the control module 103 needs to transfer the energy of the first energy storage module 101 to the second energy storage module 102, the first part of switching elements are the switching transistors Q1, the second part of switching elements are the switching transistors Q2, and the control module 103 may alternatively execute the following control logic: firstly, controlling a switching tube Q1 to be on, and controlling a switching tube Q2 to be off; and then the switching tube Q1 is controlled to be turned off, and the switching tube Q2 is controlled to be turned on. Through the above-described process, the energy of the first energy storage module 101 may be transferred to the second energy storage module 102. From the perspective of the electrical quantity, the electrical quantity of the first energy storage module 101 is reduced, and the electrical quantity of the second energy storage module 102 is increased, which is equivalent to transferring the electrical quantity in the first energy storage module 101 into the second energy storage module 102.

In the above-mentioned electric quantity adjusting circuit, through setting up control module 103, so that in the in-process of first energy storage module 101 and second energy storage module 102 replenishing electric quantity and/or releasing electric quantity, the electric quantity that control first energy storage module 101 and second energy storage module 102 stored is in two-way transfer state, can make the electric quantity that first energy storage module 101 stored shift to second energy storage module 102 in, also can make the electric quantity that second energy storage module 102 stored shift to first energy storage module 101, compare in prior art, the mutual transfer of electric quantity between first energy storage module 101 and second energy storage module 102 has been realized through two passageways that a plurality of switching elements formed to this application, can not lose the total electric quantity of energy storage module, can reduce the loss of battery electric quantity when satisfying electric quantity adjustment demand, improve the work efficiency of battery.

In some embodiments, the control module 103 is specifically configured to:

according to the magnitude relation between the target parameter of the first energy storage module 101 and the target parameter of the second energy storage module 102, the stored electric quantity is controlled to be in a bidirectional transfer state, and the target parameter comprises at least one of voltage and electric quantity.

The triggering condition for controlling the stored electric quantity to perform bidirectional transfer by the control module 103 may be when the voltage or electric quantity of the first energy storage module 101 is greater than the voltage or electric quantity of the second energy storage module 102, or when the voltage or electric quantity of the second energy storage module 102 is greater than the voltage or electric quantity of the first energy storage module 101. For example, when the voltage or the electric quantity of the first energy storage module 101 is greater than the voltage or the electric quantity of the second energy storage module 102, the control module 103 controls the stored electric quantity to be transferred from the first energy storage module 101 to the second energy storage module 102 in a first period of time, and to be transferred from the second energy storage module 102 to the first energy storage module 101 in a second period of time.

Alternatively, the magnitude relation between the target parameter of the first energy storage module 101 and the target parameter of the second energy storage module 102 may be determined by comparing the obtained target parameter of the first energy storage module 101 and the obtained target parameter of the second energy storage module 102, and the obtained mode of the target parameter of the first energy storage module 101 and the obtained mode of the target parameter of the second energy storage module 102 may be obtained by feedback after communication by the power management module 141 of the electronic device, or may be obtained by detection by a current detector included in the electric quantity adjusting circuit.

For example, taking the example that the power management module 141 of the electronic device is obtained after communication, the power management module 141 of the electronic device detects the electric quantities of the first energy storage module 101 and the second energy storage module 102 in real time, after the power management module 141 obtains the electric quantities or voltages of the first energy storage module 101 and the second energy storage module 102, the electronic device sends the electric quantities or voltages to the control module 103, so that the control module 103 determines the magnitude relation between the two according to the target parameters of the first energy storage module 101 and the target parameters of the second energy storage module 102, and further controls the stored electric quantities to be in a bidirectional transfer state.

It can be understood that, after the magnitude relation between the target parameter of the first energy storage module 101 and the target parameter of the second energy storage module 102 is obtained by comparison, the stored electric quantity is controlled to be in a bidirectional transfer state, so that the autonomous control for the bidirectional transfer state can be realized.

In some embodiments, the control module 103 is specifically configured to:

the stored electrical quantity is controlled to be in a bi-directional transfer state in response to a first instruction for indicating a transfer from the first energy storage module 101 to the second energy storage module 102 and a second instruction for indicating a transfer from the second energy storage module 102 to the first energy storage module 101.

The triggering condition of the control module 103 controlling the stored electric quantity to perform bidirectional transfer is that a control instruction sent by the electronic device is received, when the control instruction is a first instruction, the electric quantity stored by the first energy storage module 101 is controlled to be transferred from the first energy storage module 101 to the second energy storage module 102, and when the control instruction is a second instruction, the electric quantity stored by the second energy storage module 102 is controlled to be transferred from the second energy storage module 102 to the first energy storage module 101.

For example, after the electronic device sends the first instruction to the control module 103, the control module 103 controls the electric quantity stored in the first energy storage module 101 to be transferred from the first energy storage module 101 to the second energy storage module 102 according to the transfer from the first energy storage module 101 to the second energy storage module 102 indicated by the first instruction.

It can be understood that by setting different instructions respectively, the current bidirectional transfer state of the control module 103 is respectively indicated to be transferred from the first energy storage module 101 to the second energy storage module 102 or from the second energy storage module 102 to the first energy storage module 101, so that accurate control for two transfer directions is realized.

In some embodiments, the control module 103 is further configured to:

controlling the stored electric quantity to stop transferring under the condition that the current open-circuit voltage of any one of the first energy storage module 101 and the second energy storage module 102 is less than or equal to a voltage threshold value;

alternatively, in case that the voltage difference between the current open-circuit voltage of the first energy storage module 101 and the current open-circuit voltage of the second energy storage module 102 is less than or equal to the difference threshold value, the stored electric quantity is controlled to stop transferring.

In the implementation process, if the electric quantity of the energy storage module with the larger target parameter is transferred to the energy storage module with the smaller target parameter in the bidirectional transfer state process, the control module 103 can control the stored electric quantity to stop transferring under the condition that the current open-circuit voltage of any energy storage module is smaller than or equal to the voltage threshold value; if the electric quantity of the energy storage module with the smaller target parameter is transferred to the energy storage module with the larger target parameter in the bidirectional transfer state process, the control module 103 may control the stored electric quantity to stop transferring when the voltage difference between the current open-circuit voltage of the first energy storage module 101 and the current open-circuit voltage of the second energy storage module 102 is less than or equal to the difference threshold.

The manner in which the control module 103 determines whether the current electric quantity of the energy storage module with the larger target parameter is transferred to the energy storage module with the smaller target parameter or the manner in which the electric quantity of the energy storage module with the smaller target parameter is transferred to the energy storage module with the larger target parameter may be according to the magnitude relationship between the target parameter of the first energy storage module 101 and the target parameter of the second energy storage module 102, or may further obtain the target parameter of the first energy storage module 101 and the target parameter of the second energy storage module 102 after receiving the control instruction, and the foregoing is referred to by the manner in which the target parameter of the first energy storage module 101 and the target parameter of the second energy storage module 102 are obtained, which is not repeated herein.

Alternatively, the current open-circuit voltage detection manner may output the open-circuit voltage of the first energy storage module 101 through a first dc voltmeter directly connected to the first energy storage module 101, and output the open-circuit voltage of the second energy storage module 102 through a second dc voltmeter directly connected to the second energy storage module 102.

Illustratively, taking the case that the voltage difference between the current open-circuit voltage of the first energy storage module 101 and the current open-circuit voltage of the second energy storage module 102 is less than or equal to the difference threshold value, the first direct-current voltmeter and the second direct-current voltmeter may directly send the open-circuit voltage of the first energy storage module 101 and the open-circuit voltage of the second energy storage module 102 to the control module 103, and the control module 103 determines the voltage difference between the open-circuit voltage of the first energy storage module 101 and the open-circuit voltage of the second energy storage module 102 after obtaining the open-circuit voltage of the first energy storage module 101 and the open-circuit voltage of the second energy storage module 102; the first dc voltmeter and the second dc voltmeter may also send the open-circuit voltage of the first energy storage module 101 and the open-circuit voltage of the second energy storage module 102 to the power management module 141 of the electronic device, where the power management module 141 generates a corresponding driving signal to drive the control module 103 to stop the power transfer when determining that the voltage difference between the open-circuit voltage of the first energy storage module 101 and the open-circuit voltage of the second energy storage module 102 is greater than the difference threshold.

The driving signal may be, for example, a pulse width modulation (Pulse Width Modulation, PWM) signal, or other type of control signal capable of controlling the switching tube to be turned on or off.

The specific values of the electric quantity threshold and the difference threshold are set by a person skilled in the art according to actual needs, and the application is not limited.

It can be understood that when the current open-circuit voltage of any energy storage module is smaller than or equal to the voltage threshold value, or the voltage difference value between the current open-circuit voltages of the two energy storage modules is smaller than or equal to the difference threshold value, the stored electric quantity is controlled to stop transferring, so that the transferring of the stored electric quantity is not limited to transferring the electric quantity of the energy storage module with larger target parameters to the energy storage module with smaller target parameters, and the electric quantity of the energy storage module with smaller target parameters can be transferred to the energy storage module with larger target parameters, thereby improving the compatibility of the electric quantity adjusting circuit provided by the application.

In some embodiments, as shown in fig. 4, the control module 103 includes at least one bidirectional conversion unit 1031, where each bidirectional conversion unit 1031 includes a plurality of switching elements, and where:

each bidirectional conversion unit 1031 forms a first path for transferring electric power from the first energy storage module 101 to the second energy storage module 102 by controlling a first partial switching element 10311 among the plurality of switching elements to be turned on first and the remaining second partial switching element 10312 to be turned on again in a first turn-on sequence;

And, each bidirectional conversion unit 1031 forms a second path for transferring electric power from the second energy storage module 102 to the first energy storage module 101 by controlling the second partial switching element 10312 to be turned on first and the first partial switching element 10311 to be turned on again in the second turn-on order.

In the implementation process, when the control module 103 controls the stored electric quantity to transfer from the first energy storage module 101 to the second energy storage module 102, the first partial switching element 10311 is controlled to be in a conducting state, the second partial switching element 10312 is controlled to be in a disconnecting state, so that the current output by the first energy storage module 101 enters the bidirectional conversion unit 1031 from one side close to the first energy storage module 101, and then the second partial switching element 10312 is controlled to be in a conducting state, and the first partial switching element 10311 is controlled to be in a disconnecting state, so that the current output by the first energy storage module 101 is output from one side of the bidirectional conversion unit 1031 close to the second energy storage module 102 and is transferred to the second energy storage module 102, and the transfer of the stored electric quantity from the first energy storage module 101 to the second energy storage module 102 is realized.

When the control module 103 controls the stored electric quantity to transfer from the second energy storage module 102 to the first energy storage module 101, the second partial switching element 10312 is controlled to be in a conducting state according to a second conducting sequence, the first partial switching element 10311 is in a disconnecting state, so that the current output by the second energy storage module 102 enters the bidirectional conversion unit 1031 from a side close to the second energy storage module 102, and then the first partial switching element 10311 is controlled to be in a conducting state, and the second partial switching element 10312 is in a disconnecting state, so that the current output by the second energy storage module 102 is output from a side of the bidirectional conversion unit 1031 close to the first energy storage module 101 and is transferred to the first energy storage module 101, so that the transfer of the stored electric quantity from the second energy storage module 102 to the first energy storage module 101 is realized.

It should be appreciated that the first conduction sequence corresponds to a bi-directional transfer state of transferring electric power from the first energy storage module 101 to the second energy storage module 102, and the second conduction sequence corresponds to a bi-directional transfer state of transferring electric power from the second energy storage module 102 to the first energy storage module 101, for example, when the control module 103 determines that the current bi-directional transfer state is transferring electric power from the first energy storage module 101 to the second energy storage module 102, it further determines that the plurality of switching elements in the at least one bi-directional conversion unit 1031 should be conducted according to the first conduction sequence.

Optionally, the at least one bi-directional conversion unit 1031 adjusts the magnitude of the output parameter of the at least one bi-directional conversion unit 1031 by controlling the duration of the conduction state of the portion of the switching elements of the bi-directional conversion unit 1031 by which the stored electric power enters, that is, by changing the conduction duration of the portion of the switching elements connected to the first energy storage module 101 when transferring the electric power from the first energy storage module 101 to the second energy storage module 102, the magnitude of the output parameter of the at least one bi-directional conversion unit 1031, that is, the magnitude of the output parameter to the second energy storage module 102, may be adjusted.

Here, the positional relationship and the number of the bidirectional conversion units 1031 are not shown in fig. 4, and specific reference is made to the following description.

In some embodiments, as shown in fig. 5, in the case that the number of bidirectional conversion units 1031 is 1, a first end of the bidirectional conversion unit 1031 is connected to the positive electrode of the first energy storage module 101, and a second end of the bidirectional conversion unit 1031 is connected to the negative electrode of the first energy storage module 101 and the positive electrode of the second energy storage module 102, respectively.

In the implementation process, the positive electrode of the first energy storage module 101 is connected to the first partial switching element 10311 of the bidirectional conversion unit 1031, and the negative electrode of the first energy storage module 101 and the positive electrode of the second energy storage module 102 are connected to the second partial switching element 10312 of the bidirectional conversion unit 1031, respectively. When controlling the stored electric quantity to be transferred from the first energy storage module 101 to the second energy storage module 102, the first partial switching element 10311 of the bidirectional conversion unit 1031 is turned on first, so that the electric quantity stored in the first energy storage module 101 enters the bidirectional conversion unit 1031 through the first partial switching element 10311, and meanwhile, the second partial switching element 10312 is in an off state, so that the electric quantity stored in the first energy storage module 101 cannot be output from the bidirectional conversion unit 1031; further, the second partial switching element 10312 is in an on state, and the first partial switching element 10311 is in an off state, so that the electric quantity stored in the first energy storage module 101 is output through the second partial switching element 10312 and is output to the second energy storage module 102 connected to the second partial switching element 10312, so as to complete the process of transferring the stored electric quantity from the first energy storage module 101 to the second energy storage module 102.

When the stored electric quantity is controlled to be transferred from the second energy storage module 102 to the first energy storage module 101, the second partial switching element 10312 of the bidirectional conversion unit 1031 is turned on first, so that the electric quantity stored in the second energy storage module 102 enters the bidirectional conversion unit 1031 through the second partial switching element 10312, and meanwhile, the first partial switching element 10311 is in an off state, so that the electric quantity stored in the second energy storage module 102 cannot be output from the bidirectional conversion unit 1031 at this time; further, the first partial switching element 10311 is in an on state, and the second partial switching element 10312 is in an off state, so that the electric quantity stored in the second energy storage module 102 stored in the bidirectional conversion unit 1031 is output through the first partial switching element 10311 and is output to the first energy storage module 101 connected to the first partial switching element 10311, so as to complete the process of transferring the stored electric quantity from the first energy storage module 101 to the second energy storage module 102.

Alternatively, the bidirectional conversion unit 1031 may include an energy storage element, so that after the stored electric quantity enters the bidirectional conversion unit 1031, the bidirectional conversion unit 1031 may store the electric quantity through the energy storage element, and the energy storage element may be a capacitor, an inductor, or the like.

Alternatively, as shown in fig. 6, in the case that the number of bidirectional conversion units 1031 is 1, the bidirectional conversion units 1031 are buck-boost converters 1031a, the output of the buck-boost converters 1031a is constant current or constant voltage, the buck-boost converters 1031a determine the value of an output parameter according to the current target transfer state, the output parameter includes the current output by the constant current or the voltage output by the constant voltage, and the target transfer state is that the stored electric quantity is transferred from the first energy storage module 101 to the second energy storage module 102, or the stored electric quantity is transferred from the second energy storage module 102 to the first energy storage module 101;

if the target transfer state is that the stored electric quantity is transferred from the second energy storage module 102 to the first energy storage module 101, the output voltage of the buck-boost converter 1031a is greater than the sum of the voltages of the first energy storage module 101 and the second energy storage module 102; if the target transfer state is that the stored electric quantity is transferred from the first energy storage module 101 to the second energy storage module 102, the output voltage of the buck-boost converter 1031a is greater than the voltage of the second energy storage module 102.

In the implementation process, since the buck-boost converter 1031a has a plurality of switching elements, the output parameters of the buck-boost converter 1031a can be adjusted by controlling the on timing and the on duration of the plurality of switching elements, the buck-boost converter 1031a can set N gear positions, each gear position has a different output parameter, the output parameters are constant, N is greater than or equal to 1, for example, the gear position of the output current of the buck-boost converter 1031a includes 500mA to 600mA (first gear) and 700mA to 800mA (second gear), and the output current required for inputting the electric quantity to the electric quantity transfer receiver at the current moment is 700mA to 800mA, and the current output current Xu Sheding of the buck-boost converter 1031a is at the second gear.

It should be understood that, because the first energy storage module 101 and the second energy storage module 102 are connected in series, the current output by the buck-boost converter 1031a is shared by each of the two energy storage modules, so that the corresponding output voltage of the buck-boost converter 1031a needs to be greater than that of the first energy storage module 101 and the second energy storage module 102 when the current is output to the first energy storage module 101, so that the residual current can also ensure the electric quantity supplement of the first energy storage module 101 after the second energy storage module 102 shares a part of the current.

Alternatively, the above-mentioned manner in which the buck-boost converter 1031a adjusts the electric quantity to output the output parameter having the specific value may be a workflow in which the buck-boost converter in the prior art is in the boost mode or in the buck mode, where the buck-boost converter is in the boost mode or in the buck mode may be determined by determining the difference value of the target parameter between the first energy storage module 101 and the second energy storage module, for example, if the electric quantity of the first energy storage module 101 needs to be transferred to the second energy storage module 102 and the absolute value of the difference value of the target parameter between the first energy storage module 101 and the second energy storage module is smaller than that of the second energy storage module 102, the boost mode is required; when the electric quantity of the first energy storage module 101 needs to be transferred to the second energy storage module 102 and the absolute value of the difference value of the target parameter between the first energy storage module 101 and the second energy storage module is greater than that of the second energy storage module 102, a buck mode is needed, and specific execution flows of the buck mode and the boost mode are not described again.

It can be understood that if the bidirectional converting unit 1031 is a buck-boost converter 1031a, the buck-boost converter 1031a is controlled to determine the value of the output parameter according to the current target transition state, so that the output voltage of the buck-boost converter 1031a is greater than the sum of the voltages of the first energy storage module 101 and the second energy storage module 102, and the output voltage of the buck-boost converter 1031a can be used to charge the first energy storage module 101.

In some embodiments, as shown in fig. 7, in the case that the number of bidirectional conversion units 1031 is greater than 1, the bidirectional conversion units 1031 are connected in series, and the plurality of bidirectional conversion units 1031 after being connected in series include a third terminal and a fourth terminal, the third terminal is connected to the positive electrode of the first energy storage module 101, and the fourth terminal is connected to the negative electrode of the first energy storage module 101 and the positive electrode of the second energy storage module 102, respectively.

In the implementation process, the positive electrode of the first energy storage module 101 is connected to the first partial switching element 10311 at the third end, and the negative electrode of the first energy storage module 101 and the positive electrode of the second energy storage module 102 are connected to the second partial switching element 10312 at the fourth end. When the stored electric quantity is controlled to be transferred from the first energy storage module 101 to the second energy storage module 102, the first partial switching element 10311 at the third end side is turned on first, so that the electric quantity stored in the first energy storage module 101 enters the bidirectional conversion unit 1031 through the first partial switching element 10311, and meanwhile, the electric quantity stored in the first energy storage module 101 cannot be output from the bidirectional conversion unit 1031 because the switching element at the fourth end side is in an off state; further, the switching element at the fourth end is in an on state, and the first part of the switching element 10311 at the third end is in an off state, so that the electric quantity stored in the first energy storage module 101 is output through the switching element at the fourth end and is output to the second energy storage module 102 connected to the second part of the switching element 10312, so as to complete the process of transferring the stored electric quantity from the first energy storage module 101 to the second energy storage module 102.

When the stored electric quantity is controlled to be transferred from the second energy storage module 102 to the first energy storage module 101, the second partial switching element 10312 at the fourth end side is turned on first, so that the electric quantity stored in the second energy storage module 102 enters the bidirectional conversion unit 1031 through the second partial switching element 10312, and meanwhile, the first partial switching element 10311 at the third end side is in an off state, so that the electric quantity stored in the second energy storage module 102 cannot be output from the bidirectional conversion unit 1031 at the moment; further, the first partial switching element 10311 at the third end side is in an on state, and the second partial switching element 10312 at the fourth end side is in an off state, so that the electric quantity stored in the second energy storage module 102 is output through the first partial switching element 10311 and is output to the first energy storage module 101 connected to the first partial switching element 10311, so as to complete the process of transferring the stored electric quantity from the first energy storage module 101 to the second energy storage module 102.

Alternatively, each bidirectional conversion unit 1031 of the plurality of bidirectional conversion units 1031 may include an energy storage element, so that after the stored electric power enters the bidirectional conversion unit 1031, the bidirectional conversion unit 1031 may store the electric power by the energy storage element, and the energy storage element may be a capacitor, an inductor, or the like.

Alternatively, as shown in fig. 8, the plurality of bidirectional conversion units 1031 includes a buck-boost converter 1031a and a charge pump 1031b, a third terminal is one terminal of the charge pump 1031b, and a fourth terminal is one terminal of the buck-boost converter 1031a, wherein:

when the bidirectional transfer state is that the stored electric quantity is transferred from the second energy storage module 102 to the first energy storage module 101, the buck-boost converter 1031a adjusts the stored electric quantity and outputs an output parameter with a first value corresponding to the bidirectional transfer state, and the charge pump 1031b adjusts the output parameter according to a first voltage adjustment ratio so that the output voltage of the charge pump 1031b is larger than the sum of the voltages of the first energy storage module 101 and the second energy storage module 102;

when the bidirectional transfer state is that the stored electric quantity is transferred from the first energy storage module 101 to the second energy storage module 102, the charge pump 1031b regulates the stored electric quantity according to the second voltage regulation ratio, outputs the regulated electric quantity, and after the regulated electric quantity is regulated by the buck-boost converter 1031a, outputs an output parameter having a second value corresponding to the bidirectional transfer state, so that the output voltage of the buck-boost converter 1031a is greater than the voltage of the second energy storage module 102.

As shown in fig. 9, when the second energy storage module BT2 transfers electric quantity to the first energy storage module 101BT1, the current output by the second energy storage module BT2 enters the BUCK-BOOST converter BUCK-BOOST through the first conductive loop, the first conductive loop includes the positive pole of the second energy storage module BT2, the BUCK-BOOST converter BUCK-BOOST and the ground, the BUCK-BOOST converter 1031a adjusts the output parameter with the first value, and then outputs the output parameter to the charge pump 1031b through the second conductive loop, the second conductive loop includes the BUCK-BOOST converter BUCK-BOOST, the charge pump 1031b and the ground, and the charge pump 1031b adjusts the output parameter according to the first voltage adjusting ratio, so that the output voltage of the charge pump 1031b is greater than the sum of the voltages of the first energy storage module 101 and the second energy storage module 102, and outputs the output parameter to the first energy storage module 101BT1 through the third conductive loop, and the third conductive loop includes the charge pump 1031b and the first energy storage module 101BT1.

As shown in fig. 10, in the case where the first energy storage module 101BT1 transfers electric quantity to the second energy storage module BT2, the current output by the first energy storage module 101BT1 enters the charge pump 1031b through the third conductive loop, the third conductive loop includes the charge pump 1031b and the first energy storage module 101BT1, the charge pump 1031b regulates the stored electric quantity according to the second regulation ratio, the output regulated electric quantity is output to the BUCK-BOOST converter BUCK-BOOST position through the second conductive loop, the second conductive loop includes the BUCK-BOOST converter BUCK-BOOST, the charge pump 1031b and the ground terminal, and after the regulated electric quantity is regulated by the BUCK-BOOST converter BUCK-BOOST, the output parameter having the second value corresponding to the bidirectional transfer state is output, so that the output voltage of the BUCK-BOOST converter 1a is greater than the voltage of the second energy storage module 102, and is output to the second energy storage module BT2 through the first conductive loop, and the first conductive loop includes the BUCK-BOOST converter BUCK-BOOST of the positive electrode module BT2 and the ground terminal.

Preferably, the buck-boost converter 1031a is a four-switch buck-boost converter, as shown in fig. 11, where the four-switch buck-boost converter includes an inductor L, a switch S1, a switch S2, a switch S3, and a switch S4, the inductor L is connected to one ends of the switch S1, the switch S2, the switch S3, and the switch S4, the other ends of the switch S1 and the switch S2 are connected to a capacitor C1 and a port 1, the other ends of the switch S3 and the switch S4 are connected to a capacitor C2 and a port 2, the port 1 is further connected to a positive electrode of the second energy storage module BT2, and the port 2 is further connected to one end of the charge pump 1031 b.

Taking the transfer of the electric quantity from the second energy storage module BT2 to the first energy storage module BT1 as an example, the switches S1 and S2 of the four-switch buck-boost converter 1031a are first in a conducting state, so that the electric quantity of the second energy storage module BT2 is input to the inductor L for storage, the four-switch buck-boost converter 1031a adjusts the electric quantity stored in the inductor L, and after obtaining the output parameter with the first value, the switches S3 and S4 are controlled to be in a conducting state, so that the output parameter with the first value is output to the charge pump 1031 b. The manner in which the four-switch buck-boost converter 1031a adjusts the electric quantity stored in the inductor L adopts a conventional technical means, which is not described herein.

It can be appreciated that the bidirectional conversion unit 1031 is configured such that the bidirectional conversion state of the control module 103 is realized by controlling the conduction sequence of the plurality of switching elements of the bidirectional conversion unit 1031 in different conversion directions, the electric quantity stored in the first energy storage module 101 is controlled to be transferred from the first energy storage module 101 to the second energy storage module 102, and the electric quantity stored in the second energy storage module 102 is controlled to be transferred from the second energy storage module 102 to the first energy storage module 101.

Fig. 12 is a schematic diagram of an implementation structure of an electric quantity adjusting circuit according to an embodiment of the present application. As shown in fig. 12, the power adjustment circuit includes a first energy storage module 101, a second energy storage module 102 and a control module 103, where the first energy storage module 101 is a battery BT1, the second energy storage module 102 is a battery BT2, the battery BT1 and the battery BT2 are connected in series, a negative electrode of the battery BT2 is grounded, the control module 103 includes a BUCK-BOOST circuit and a charge pump 1031b, the BUCK-BOOST circuit includes a first connection end and a second connection end, the charge pump 1031b includes a third connection end and a fourth connection end, the first connection end is connected with a positive electrode of the battery BT2, the second connection end is connected with the third connection end, and the fourth connection end is connected with a positive electrode of the battery BT 1.

The operation modes of the control module 103 may include the following: 1. when the voltage (or the electric quantity) of the battery BT2 is greater than BT1 and exceeds a certain threshold value, controlling the stored electric quantity to be transferred from the battery BT2 to the battery BT 1; 2. when the voltage (or the electric quantity) of the battery BT1 is greater than BT2 and exceeds a certain threshold value, controlling the stored electric quantity to be transferred from the battery BT1 to the battery BT 2; 3. when the voltage (or the electric quantity) of the battery BT1 is smaller than or equal to BT2, controlling the stored electric quantity to be transferred from the battery BT1 to the battery BT 2; 4. when the voltage (or the amount of electricity) of the battery BT2 is equal to or less than BT1, the stored amount of electricity is controlled to be transferred from the battery BT2 to the battery BT 1. One skilled in the art may choose from one of the 4 modes of operation described above as the actual mode of operation of the control module 103 for a certain period of time.

When the stored electric quantity is transferred from the battery BT1 to the battery BT2, the BUCK-BOOST circuit controls the electric quantity transfer direction from the connection terminal 2 to the connection terminal 1, and at this time, the BUCK-BOOST circuit only uses the electric quantity in the transfer direction from the connection terminal 4 to the connection terminal 3 through the charge pump 1031b, so that after receiving the current output by the battery BT1 from the connection terminal 4, the charge pump 1031b outputs the current output by the battery BT1 to the BUCK-BOOST circuit after voltage regulation according to the first voltage regulation ratio, in this embodiment, the first voltage regulation ratio is 1:2, i.e. the ratio between the output voltage and the input voltage is 1:2, the BUCK-BOOST circuit adjusts the current output by the charge pump 1031b after receiving the current, and outputs an output parameter having a first value corresponding to the battery BT2, where the output parameter includes a current or a voltage, so as to charge the battery BT2, for example, if the current predetermined to enter the battery BT2 is 1A, the value of the output current of the BUCK-BOOST circuit in the current transfer direction is set to be 1, so that the output parameter is 1A. Until the current open circuit voltage of the battery BT1 is less than the threshold value, or the current open circuit voltage of the battery BT1 is equal to the current open circuit voltage of the battery BT2, the control module 103 stops the transfer of the electric quantity.

When the stored electric quantity is transferred from the battery BT2 to the battery BT1, the BUCK-BOOST circuit controls the electric quantity transfer direction from the connection end 1 to the connection end 2, at this time, the BUCK-BOOST circuit only outputs the electric quantity through the battery BT2, the BUCK-BOOST circuit adjusts the electric quantity after receiving the electric quantity output by the battery BT2, and outputs an output parameter with a second value corresponding to the battery BT1, wherein the output parameter comprises the electric quantity or the voltage, for example, if the electric quantity predetermined to enter the battery BT1 is 1A, the value of the output current of the BUCK-BOOST circuit in the current transfer direction is set to be 2 so that the output parameter is 2A, and the output voltage is more than half of the sum of the current open circuit voltages of the battery BT1 and the battery BT 2. After receiving the current output by the BUCK-BOOST circuit from the connection terminal 3, the charge pump 1031b regulates the voltage of the current output by the BUCK-BOOST circuit according to a second regulation ratio, and outputs the regulated current to the battery BT1, where the second regulation ratio is 2:1, i.e. the ratio between the output voltage and the input voltage is 2:1 to charge the battery BT 1. Until the current open circuit voltage of the battery BT2 is less than the threshold value, or the current open circuit voltage of the battery BT2 is equal to the current open circuit voltage of the battery BT1, the control module 103 stops the transfer of the electric quantity.

Fig. 13 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 13, the electronic device includes the power adjustment circuit according to any of the above embodiments.

It should be noted here that: the description of the apparatus embodiments above is similar to that of the method embodiments above, with similar benefits as the method embodiments. For technical details not disclosed in the apparatus embodiments of the present application, please refer to the description of the method embodiments of the present application for understanding.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" or "some embodiments" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" or "in some embodiments" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application. The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments. The foregoing description of various embodiments is intended to highlight differences between the various embodiments, which may be the same or similar to each other by reference, and is not repeated herein for the sake of brevity.

The term "and/or" is herein merely an association relation describing associated objects, meaning that there may be three relations, e.g. object a and/or object B, may represent: there are three cases where object a alone exists, object a and object B together, and object B alone exists.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments are merely illustrative, and the division of the modules is merely a logical function division, and other divisions may be implemented in practice, such as: multiple modules or components may be combined, or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or modules, whether electrically, mechanically, or otherwise.

The modules described above as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules; can be located in one place or distributed to a plurality of network units; some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present application may be integrated in one processing unit, or each module may be separately used as one unit, or two or more modules may be integrated in one unit; the integrated modules may be implemented in hardware or in hardware plus software functional units.

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, where the program, when executed, performs steps including the above method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read Only Memory (ROM), a magnetic disk or an optical disk, or the like, which can store program codes.

Alternatively, the integrated units described above may be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or part contributing to the related art, and the computer software product may be stored in a storage medium, including several instructions for causing an electronic device to execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a removable storage device, a ROM, a magnetic disk, or an optical disk.

The methods disclosed in the several method embodiments provided in the present application may be arbitrarily combined without collision to obtain a new method embodiment.

The features disclosed in the several product embodiments provided in the present application may be combined arbitrarily without conflict to obtain new product embodiments.

The features disclosed in the several method or apparatus embodiments provided in the present application may be arbitrarily combined without conflict to obtain new method embodiments or apparatus embodiments.

The foregoing is merely an embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An electric quantity adjusting circuit is characterized by comprising a first energy storage module, a second energy storage module and a control module which are connected in series, wherein:

the control module is used for controlling the electric quantity stored by the first energy storage module and the second energy storage module to be in a bidirectional transfer state in the process of supplementing the electric quantity and/or releasing the electric quantity by the first energy storage module and the second energy storage module;

when the electric quantity of the first energy storage module and the second energy storage module is in the bidirectional transfer state, the electric quantity is transferred from the first energy storage module to the second energy storage module through a first passage, or the electric quantity is transferred from the second energy storage module to the first energy storage module through a second passage;

Wherein the control module includes a plurality of switching elements, and the first path and the second path are formed by controlling the turning-on and turning-off of the plurality of switching elements.

2. The circuit of claim 1, wherein the controlling the amount of power stored by the first energy storage module and the second energy storage module in the bi-directional transfer state comprises:

the control module controls the stored electric quantity to be in the bidirectional transfer state according to the magnitude relation between the target parameter of the first energy storage module and the target parameter of the second energy storage module, wherein the target parameter comprises at least one of voltage and electric quantity.

3. The circuit of claim 1, wherein the controlling the amount of power stored by the first energy storage module and the second energy storage module in the bi-directional transfer state comprises:

and receiving and responding to a first instruction and a second instruction, and controlling the stored electric quantity to be in the bidirectional transfer state, wherein the first instruction is used for indicating the transfer from the first energy storage module to the second energy storage module, and the second instruction is used for indicating the transfer from the second energy storage module to the first energy storage module.

4. The circuit of claim 1, wherein the control module is further to:

controlling the stored electric quantity to stop transferring under the condition that the current open-circuit voltage of any one of the first energy storage module and the second energy storage module is smaller than or equal to an electric quantity threshold value;

or controlling the stored electric quantity to stop transferring under the condition that the voltage difference value between the current open-circuit voltage of the first energy storage module and the current open-circuit voltage of the second energy storage module is smaller than or equal to a difference value threshold value.

5. The circuit of any of claims 1-4, wherein the control module comprises at least one bi-directional conversion unit, each bi-directional conversion unit comprising the plurality of switching elements, wherein:

each bidirectional conversion unit forms the first path by controlling a first part of switching elements in the plurality of switching elements to be turned on first and the rest of switching elements to be turned on again;

and each bidirectional conversion unit forms the second path by controlling the second partial switching element to be turned on first and the first partial switching element to be turned on again.

6. The circuit of claim 5, wherein in case the number of the bidirectional conversion units is 1, a first end of the bidirectional conversion unit is connected to the positive electrode of the first energy storage module, and a second end of the bidirectional conversion unit is connected to the negative electrode of the first energy storage module and the positive electrode of the second energy storage module, respectively.

7. The circuit of claim 6, wherein the bidirectional conversion unit is a buck-boost converter, the output of the buck-boost converter is constant current or constant voltage, the buck-boost converter determines the value of an output parameter according to a current target transfer state, the output parameter comprises a current output by constant current or a voltage output by constant voltage, the target transfer state is that the stored electric quantity is transferred from the first energy storage module to the second energy storage module, or the stored electric quantity is transferred from the second energy storage module to the first energy storage module;

if the target transfer state is that the stored electric quantity is transferred from the second energy storage module to the first energy storage module, the output voltage of the buck-boost converter is larger than the sum of the voltages of the first energy storage module and the second energy storage module; and if the target transfer state is that the stored electric quantity is transferred from the first energy storage module to the second energy storage module, the output voltage of the buck-boost converter is larger than the voltage of the second energy storage module.

8. The circuit of claim 5, wherein in case the number of the bidirectional conversion units is greater than 1, a plurality of the bidirectional conversion units are connected in series, and the plurality of the bidirectional conversion units after the series connection include a third terminal connected to the positive electrode of the first energy storage module and a fourth terminal connected to the negative electrode of the first energy storage module and the positive electrode of the second energy storage module, respectively.

9. The circuit of claim 8, wherein a plurality of the bidirectional conversion cells comprise a buck-boost converter and a charge pump, the third terminal being one terminal of the charge pump and the fourth terminal being one terminal of the buck-boost converter, wherein:

when the bidirectional transfer state is that the stored electric quantity is transferred from the second energy storage module to the first energy storage module, the buck-boost converter adjusts the stored electric quantity and outputs an output parameter with a first value corresponding to the bidirectional transfer state, and the charge pump regulates the output parameter according to a first regulation proportion so that the output voltage of the charge pump is larger than the sum of the voltages of the first energy storage module and the second energy storage module;

And under the condition that the bidirectional transfer state is that the stored electric quantity is transferred from the first energy storage module to the second energy storage module, the charge pump regulates the stored electric quantity according to a second voltage regulation ratio and outputs the regulated electric quantity, and the buck-boost converter regulates the regulated electric quantity and outputs an output parameter with a second value corresponding to the bidirectional transfer state so that the output voltage of the buck-boost converter is larger than the voltage of the second energy storage module.

10. The circuit of claim 1, wherein the first energy storage module comprises at least one battery in series with each other and the second energy storage module comprises at least one battery in series with each other.

11. An electronic device comprising a power adjustment circuit according to any one of claims 1-10.