CN114825489A - Mobile device power supply, mobile device and mobile device power supply method - Google Patents

Abstract

The application relates to a mobile device power supply, a mobile device and a mobile device power supply method, wherein the power supply comprises a plurality of mutually independent sub-power modules and a battery pack management module, and the battery pack management module is configured to: under the condition that the power supply of the mobile equipment is not charged, communicating a path for supplying power to each electricity utilization module by each sub power supply module, so that each sub power supply module is correspondingly connected with each electricity utilization module one by one through the battery pack management module; when the mobile device power supply is connected to the charging device for charging, the power supply path of the charging device for supplying power to each power utilization module is connected, and the power supply path of each power utilization module for supplying power to each power utilization module is disconnected. The charging and discharging of the multiple batteries of the power supply of the mobile equipment can be reasonably and effectively controlled and managed, and the charging efficiency of the mobile equipment and the working stability and reliability of the batteries are improved.

Description

Mobile device power supply, mobile device and mobile device power supply method

Technical Field

The invention relates to the technical field of power supplies, in particular to a mobile device power supply, a mobile device and a mobile device power supply method.

Background

The charging standard of 5V/1A adopted by the traditional mobile equipment powered by a single battery is low in charging power, low in charging speed and poor in user experience, so that the charging requirement of the mobile equipment with large battery capacity cannot be met. In order to increase the charging speed and reduce the charging time, a quick charging technology is developed. The high-voltage quick charging technology and the large-current quick charging technology are mainstream single-battery quick charging technologies at present, so that the charging power can be remarkably increased, and meanwhile, the time required by charging is shortened.

In order to meet the increasingly rich functional requirements of mobile devices, the power supply specification of the internal power supply of the mobile device is increasingly complex, and particularly in order to meet the requirement of high-amplitude power supply voltage of a high-efficiency power converter, the power supply with a multi-battery structure is a reasonable optional power supply scheme.

However, for the power supply scheme with multi-battery structure, the charging management technology is relatively complex, and especially in the state that the mobile device is working while charging, how to reasonably manage the multi-battery, so as to ensure the charging efficiency, the stability of the battery and the normal work of the mobile device becomes one of the technical problems to be solved urgently.

Disclosure of Invention

Accordingly, it is necessary to provide a mobile device power supply, a mobile device and a mobile device power supply method, which can reasonably and effectively control and manage the charging and discharging of multiple batteries of the mobile device power supply, so that the multiple batteries of the mobile device power supply are powered by an external power supply during the charging process, and the multiple batteries of the mobile device power supply provide high-quality power for the mobile device when the mobile device power supply is not charged, thereby effectively improving the charging efficiency of the mobile device, and the stability and reliability of the battery operation.

In order to achieve the above and other objects, a first aspect of the present application provides a mobile device power supply, including a plurality of independent sub power modules and a battery management module, where each of the sub power modules is configured to provide power supply voltages with different magnitudes to power utilization modules in a mobile device, and maximum values of required power supply voltage ranges of the power utilization modules are different;

the battery pack management module is connected with each sub-power supply module and is configured to:

under the condition that the power supply of the mobile equipment is not charged, communicating a path for supplying power to each electricity utilization module by each sub power supply module, so that each sub power supply module is correspondingly connected with each electricity utilization module one by one through the battery pack management module;

when the mobile device power supply is connected to the charging device for charging, the power supply path of the charging device for supplying power to each power utilization module is connected, and the power supply path of each power utilization module for supplying power to each power utilization module is disconnected.

In the power supply of the mobile device in the above embodiment, the power utilization circuit in the mobile device is divided into a plurality of different power utilization modules according to the magnitude of the power supply voltage amplitude required by each power utilization module, and the power supply voltage range of each power utilization module is determined, wherein the maximum value of each power supply voltage range is different, and the maximum value of the power supply voltage required by each power utilization circuit in any power utilization module is smaller than or equal to the maximum value of the power supply voltage range of the power utilization module; determining the sub-power supply modules corresponding to the electricity utilization modules according to the power supply voltage ranges, so that the maximum value of the voltage provided by any sub-power supply module to the electricity utilization module connected with the sub-power supply module is greater than or equal to the maximum value of the power supply voltage required by the electricity utilization module; and then, the mutually independent sub power supply modules are used for respectively supplying power to the power utilization modules corresponding to the sub power supply modules, so that the problem that the power converter with large input-output voltage difference is used for boosting the voltage provided by the power supply to the working voltage required by the high-voltage power utilization module in the mobile equipment is solved, and the problem of heating caused by the power converter is solved. By arranging the battery pack management module connected with each sub power supply module, under the condition that the power supply of the mobile equipment is not charged, the battery pack management module is controlled to act, and a path for supplying power to each power utilization module by each sub power supply module is communicated, so that each sub power supply module is correspondingly connected with each power utilization module one by one through the battery pack management module; when the power supply of the mobile equipment is connected to the charging equipment for charging, the battery pack management module is controlled to act, the power supply passage of the charging equipment to each power utilization module is connected, and the power supply passage of each power utilization module to each power utilization module is disconnected. Therefore, the charging and discharging of the multiple batteries of the mobile equipment power supply are reasonably and effectively controlled and managed, the multiple batteries of the mobile equipment power supply are powered by an external power supply in the charging process, and the multiple batteries of the mobile equipment power supply provide high-quality power for the mobile equipment when the mobile equipment power supply is not charged, so that the charging efficiency of the mobile equipment, the working stability and the working reliability of the batteries are effectively improved, the utilization rate of power energy storage is improved, and meanwhile, the standby service time of the mobile equipment is relatively prolonged.

In one embodiment, the battery pack management module further includes a detection control module and a charging compatibility module, where the detection control module is connected to each of the sub power modules and each of the power utilization modules, and is configured to detect access information of a charging device, power status information of each of the sub power modules, and power utilization status information of each of the power utilization modules, generate a first control signal according to the access information, the power status information, and the power utilization status information, and generate a second control signal according to the power status information and the power utilization status information; the charging compatible module is connected with the detection control module, each sub power supply module and each electricity utilization module, and is used for receiving the first control signal, communicating a path for the charging equipment to supply power to each sub power supply module and communicating a path for the charging equipment to supply power to each electricity utilization module according to the action of the first control signal.

In one embodiment, the charging compatible module includes a power conversion circuit, and the power conversion circuit is configured to convert electric energy provided by the charging device into a charging voltage or a charging current required by each of the sub power supply modules, and then charge each of the sub power supply modules.

In one embodiment, the power conversion circuit includes a flyback power conversion circuit, and the flyback power conversion circuit is configured to convert the electric energy provided by the charging device into a charging voltage required by each sub power supply module, and then charge each sub power supply module through a plurality of voltage output branches.

In one embodiment, the battery pack management module further includes a power supply path selection control module, where the power supply path selection control module is connected to the detection control module, the charging compatible module, each of the sub power modules, and each of the power utilization modules, and is configured to receive the first control signal, and operate according to the first control signal, connect a path through which the charging device supplies power to each of the sub power modules via the charging compatible module, connect a path through which the charging device supplies power to each of the power utilization modules via the charging compatible module, and disconnect a path through which each of the sub power modules supplies power to each of the power utilization modules; the power supply path selection control module is further configured to receive the second control signal, and communicate paths through which each of the sub power modules supplies power to each of the power utilization modules according to an action of the second control signal.

In one embodiment, the power supply path selection control module includes energy storage units and direction control circuits, and the number of the energy storage units, the number of the direction control circuits, the number of the voltage output branches of the charging compatible module, and the number of the sub power supply modules are the same and are arranged in a one-to-one correspondence manner; each energy storage unit is respectively connected with each voltage output branch in parallel and is respectively connected with each sub power supply module in a one-to-one correspondence mode through the direction control circuit; the direction control circuit is configured to:

according to the action of the received first control signal, a path for supplying power to each sub power supply module by the charging equipment through the charging compatible module is communicated, and a path for supplying power to each power utilization module by each sub power supply module is disconnected;

and communicating a path for each sub power supply module to supply power to each power utilization module according to the received second control signal action.

In one embodiment, the direction control circuit comprises a unidirectional conducting switch unit and a controllable bidirectional switch unit which are connected in parallel;

the unidirectional conducting switch unit is configured to act when the power supply of the mobile device is connected to the charging device for charging, and the unidirectional conducting switch unit is changed from an off state to an on state;

the controllable bidirectional switch unit is configured to be operated under the condition that the power supply of the mobile equipment is not charged, and a path for supplying power to each power utilization module by each sub power supply module is communicated.

In one embodiment, the mobile device power supply further includes a voltage regulation module, where the voltage regulation module is connected to the detection control module, the charging compatible module, each sub power supply module, and each power utilization module, and is configured to convert received electric energy into a supply voltage or a supply current required by each power utilization module, and supply power to each power utilization module.

In one embodiment, the voltage regulation module comprises a number of power conversion circuits equal to the number of the power utilization modules; the power conversion circuit comprises a BUCK circuit or a low-dropout linear voltage stabilizing circuit, and the BUCK circuit is used for converting electric energy provided by the battery pack management module into power supply voltage or power supply current required by the power utilization module; the low-dropout linear voltage stabilizing circuit is used for converting the electric energy provided by the battery pack management module into the power supply voltage or the power supply current required by the power utilization module.

A second aspect of the application provides a mobile device comprising a mobile device power supply as described in any of the embodiments of the application. Dividing a power utilization circuit in mobile equipment into a plurality of different power utilization modules according to the magnitude of the amplitude of the power supply voltage required by each power utilization circuit, and determining the power supply voltage range of each power utilization module, wherein the maximum value of each power supply voltage range is different, and the maximum value of the power supply voltage required by each power utilization circuit in any power utilization module is smaller than or equal to the maximum value of the power supply voltage range of the power utilization module; determining the sub-power supply modules corresponding to the electricity utilization modules according to the power supply voltage ranges, so that the maximum value of the voltage provided by any sub-power supply module to the electricity utilization module connected with the sub-power supply module is greater than or equal to the maximum value of the power supply voltage required by the electricity utilization module; then, providing a mobile equipment power supply comprising a plurality of mutually independent sub-power supply modules, and connecting each sub-power supply module with an electricity utilization module in the mobile equipment in a one-to-one correspondence manner; the mutually independent sub-power supply modules are used for respectively supplying power to the power utilization modules corresponding to the sub-power supply modules, the situation that the voltage provided by the power supply is boosted to the working voltage required by the high-voltage power utilization module in the mobile equipment by the power converter with large input-output voltage difference is avoided, the heating problem caused by the power converter is avoided, the utilization rate of power storage is improved, and meanwhile the standby service time of the mobile equipment is relatively prolonged.

A third aspect of the present application provides a mobile device power supply method, including:

dividing an electricity utilization circuit in mobile equipment into a plurality of different electricity utilization modules according to the magnitude of the amplitude of the required power supply voltage of each electricity utilization module, determining a sub-power supply module corresponding to each electricity utilization module according to the required power supply voltage range of each electricity utilization module, wherein the maximum value of the required power supply voltage range of each electricity utilization module is different;

under the condition that the power supply of the mobile equipment is not charged, controlling a battery pack management module to act, communicating a path for each sub-power supply module to supply power to each electricity utilization module, and enabling each sub-power supply module to be correspondingly connected with each electricity utilization module one by one through the battery pack management module;

when the power supply of the mobile equipment is connected to the charging equipment for charging, the battery pack management module is controlled to act, the power supply passage of the charging equipment to each power utilization module is connected while the power supply passage of the charging equipment to each power utilization module is connected, and the power supply passage of each power utilization module to each power utilization module is disconnected.

In the power supply method for the mobile device in the embodiment, the power utilization circuit in the mobile device is divided into a plurality of different power utilization modules according to the magnitude of the power supply voltage amplitude required by each power utilization module, and the power supply voltage range of each power utilization module is determined, wherein the maximum value of each power supply voltage range is different, and the maximum value of the power supply voltage required by each power utilization circuit in any power utilization module is smaller than or equal to the maximum value of the power supply voltage range of the power utilization module; determining the sub-power supply modules corresponding to the power utilization modules according to the power supply voltage ranges, so that the maximum voltage provided by any sub-power supply module to the power utilization module connected with the sub-power supply module is greater than or equal to the maximum value of the power supply voltage required by the power utilization module; and then, the mutually independent sub power supply modules are used for respectively supplying power to the power utilization modules corresponding to the sub power supply modules, so that the problem that the power converter with large input-output voltage difference is used for boosting the voltage provided by the power supply to the working voltage required by the high-voltage power utilization module in the mobile equipment is solved, and the problem of heating caused by the power converter is solved. By arranging the battery pack management module connected with each sub power supply module, under the condition that the power supply of the mobile equipment is not charged, the battery pack management module is controlled to act, and a path for each sub power supply module to supply power to each power utilization module is communicated, so that each sub power supply module is correspondingly connected with each power utilization module one by one through the battery pack management module; when the power supply of the mobile equipment is connected to the charging equipment for charging, the battery pack management module is controlled to act, the power supply passage of the charging equipment to each power utilization module is connected, and the power supply passage of each power utilization module to each power utilization module is disconnected. Therefore, the charging and discharging of the multiple batteries of the mobile equipment power supply are reasonably and effectively controlled and managed, the multiple batteries of the mobile equipment power supply are powered by an external power supply in the charging process, and the multiple batteries of the mobile equipment power supply provide high-quality power for the mobile equipment when the mobile equipment power supply is not charged, so that the charging efficiency of the mobile equipment, the working stability and the working reliability of the batteries are effectively improved, the utilization rate of power energy storage is improved, and meanwhile, the standby service time of the mobile equipment is relatively prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain drawings of other embodiments based on these drawings without any creative effort.

Fig. 1 is a schematic diagram of an architecture of a power supply of a mobile device according to a first embodiment of the present application;

fig. 2 is a schematic diagram of an architecture of a power supply of a mobile device according to a second embodiment of the present application;

fig. 3 is a schematic diagram of an architecture of a power supply of a mobile device provided in a third embodiment of the present application;

fig. 4 is a circuit schematic diagram of a flyback power conversion circuit provided in a fourth embodiment of the present application;

fig. 5 is a schematic diagram of an architecture of a power supply of a mobile device provided in a fifth embodiment of the present application;

fig. 6 is a schematic diagram of an architecture of a power supply of a mobile device provided in a sixth embodiment of the present application;

fig. 7 is a schematic diagram of an architecture of a power supply of a mobile device provided in a seventh embodiment of the present application;

FIG. 8 is a schematic circuit diagram of a BUCK circuit provided in an eighth embodiment of the present application;

FIG. 9 is a circuit diagram of a BUCK circuit provided in the ninth embodiment of the present application;

fig. 10 is a flowchart illustrating a power supply method for a mobile device according to a tenth embodiment of the present application.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

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 in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application.

In this application, unless otherwise expressly stated or limited, the terms "connected" and "connecting" are used broadly and encompass, for example, direct connection, indirect connection via an intermediary, communication between two elements, or interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In an embodiment of the present application, a mobile device power supply is provided, which includes a plurality of mutually independent sub power modules and a battery pack management module, where each sub power module is configured to provide power supply voltages with different amplitudes to power utilization modules in a mobile device, and maximum values of required power supply voltage ranges of each power utilization module are different; the battery pack management module is connected with each sub-power supply module and is configured to:

under the condition that the power supply of the mobile equipment is not charged, communicating a path for supplying power to each electricity utilization module by each sub power supply module, so that each sub power supply module is correspondingly connected with each electricity utilization module one by one through the battery pack management module;

when the mobile device power supply is connected to the charging device for charging, the power supply access of the charging device to each power utilization module is communicated, and the power supply access of each power utilization module to each power utilization module is disconnected.

As an example, referring to fig. 1, in an embodiment of the present application, the power utilization circuit in the mobile device is divided into a plurality of different power utilization modules according to the magnitude of the required power supply voltage amplitude, for example, a first power utilization module 201, an ith power utilization module 20i, … …, and an nth power utilization module 20 n; then determining a power supply voltage range of each power utilization module, wherein the maximum value of each power supply voltage range is different; the maximum value of the power supply voltage range required by the first electric module 201 is recorded as V1, the maximum value of the power supply voltage range required by the i-th electric module 20i is recorded as Vi, and the maximum value of the power supply voltage range required by the n-th electric module 20n is recorded as Vn, the maximum values of the power supply voltage ranges required by the first electric module 201, the i-th electric modules 20i, … … and the n-th electric module 20n can be set to be sequentially increased, for example, V1< Vi < Vn, 1 is less than or equal to i and less than or equal to n, n is greater than or equal to 2, and the maximum value of the power supply voltage required by each electric circuit in any electric module is less than or equal to the maximum value of the power supply voltage range of the electric module; then, determining sub power supply modules corresponding to the electricity utilization modules, such as a first sub power supply module 11, an ith sub power supply module 1i, … … and an nth sub power supply module 1n, according to the power supply voltage ranges, so that the maximum value of the voltage supplied by any sub power supply module to the electricity utilization module connected with the sub power supply module is greater than or equal to the maximum value of the power supply voltage required by the electricity utilization module, for example, the maximum value of the voltage supplied by the ith sub power supply module 1i to the ith electricity utilization module connected with the ith sub power supply module is greater than or equal to the maximum value of the power supply voltage required by the ith electricity utilization module; the mutually independent sub power supply modules are used for respectively supplying power to the power utilization modules corresponding to the sub power supply modules, the situation that the voltage provided by the power supply is boosted to the working voltage required by the high-voltage power utilization module in the mobile equipment by using the power converter with large input-output voltage difference is avoided, and therefore the heating problem caused by the power converter is avoided. By arranging the battery pack management module 30 connected with each sub power supply module, under the condition that the mobile device power supply 100 is not charged, the battery pack management module 30 is controlled to act to communicate a path for each sub power supply module to supply power to each power utilization module, so that each sub power supply module is correspondingly connected with each power utilization module one by one through the battery pack management module; when the mobile device power supply 100 is connected to a charging device for charging, the battery management module 30 is controlled to operate, a path for the charging device 300 to supply power to each of the power utilization modules is connected, and a path for each of the power utilization modules to supply power to each of the power utilization modules is disconnected. Therefore, the charging and discharging of the multiple batteries of the mobile equipment power supply are reasonably and effectively controlled and managed, the multiple batteries of the mobile equipment power supply are powered by an external power supply in the charging process, and the multiple batteries of the mobile equipment power supply provide high-quality power for the mobile equipment when the mobile equipment power supply is not charged, so that the charging efficiency of the mobile equipment, the working stability and the working reliability of the batteries are effectively improved, the utilization rate of power energy storage is improved, and meanwhile, the standby service time of the mobile equipment is relatively prolonged.

Further, referring to fig. 2, in an embodiment of the present application, the battery management module 30 further includes a detection control module 31 and a charging compatible module 32, the detection control module 31 is connected to the first electric module 201, the ith electric module 20i, … …, the nth electric module 20n, the first sub-power module 11, the ith sub-power module 1i, … …, and the nth sub-power module 1n, for detecting the access information of the charging device 300, the power status information of the first sub power module 11, the ith sub power module 1i, … … and the nth sub power module 1n, and the power utilization status information of the first electric module 201, the ith electric module 20i, … … and the nth electric module 20n, and generating a first control signal according to the access information, the power state information and the power consumption state information, generating a second control signal according to the power supply state information and the power utilization state information; the charging compatible module 32 is connected to the detection control module 31, the first sub power module 11, the ith sub power module 1i, … …, the nth sub power module 1n, the first electric module 201, the ith electric module 20i, … … and the nth electric module 20n, and is configured to receive the first control signal, and operate according to the first control signal to communicate with a path through which the charging apparatus 300 supplies power to the first sub power module 11, the ith sub power module 1i, … … and the nth sub power module 1n, and communicate with a path through which the charging apparatus 300 supplies power to the first electric module 201, the ith electric module 20i, … … and the nth electric module 20n, where i is greater than or equal to 1 and less than or equal to n, and n is greater than or equal to 2. The power supply 100 of the mobile device supplies power to each power utilization module by using the electric energy provided by the charging device 300 under the condition of charging.

Further, referring to fig. 3, in an embodiment of the present application, the charging compatible module 32 includes a power conversion circuit 321, and the power conversion circuit 321 is configured to convert the electric energy provided by the charging device 300 into a charging voltage or a charging current required by the first sub power module 11, the ith sub power module 1i, … …, and the nth sub power module 1n, and then charge the first sub power module 11, the ith sub power module 1i, … …, and the nth sub power module 1n, where i is greater than or equal to 1 and less than or equal to n, and n is greater than or equal to 2, so as to improve the stability and reliability of the operation of each sub power module.

Specifically, referring to fig. 4, in an embodiment of the present application, the power conversion circuit 321 includes at least one flyback power conversion circuit 3211, and the flyback power conversion circuit 3211 is configured to convert the electric energy provided by the charging device 300 into a charging voltage or a charging current required by the first sub power module 11, the ith sub power module 1i, … …, and the nth sub power module 1n, and then charge the first sub power module 11, the ith sub power module 1i, … …, and the nth sub power module 1n through a plurality of voltage output branches, where i is greater than or equal to 1 and is less than or equal to n, and n is greater than or equal to 2, so as to improve the stability and reliability of the operation of each sub power module. Fig. 4 illustrates that n is 3, and in other embodiments of the present application, n is a positive integer greater than or equal to 2.

For example, referring to fig. 4, in an embodiment of the present application, a flyback power conversion circuit 3211 includes a transformer (not shown) and a controllable switching element 32116, the transformer includes a primary winding 32112, a first secondary winding 32113, a second secondary winding 32114, and a third secondary winding 32115, a first port of the primary winding 32112 is used for inputting a voltage, a first port of each secondary winding is grounded, and second ports of the first secondary winding 32113, the second secondary winding 32114, and the third secondary winding 32115 are respectively connected to a voltage output branch; a first port of the controllable switching element 32116 is connected to a second port of the primary winding 32112, a second port of the controllable switching element 32116 is grounded, and a control port of the controllable switching element 32116 is connected to the main control circuit 32111. The main control circuit 32111 may control the controllable switch element 32116 to operate according to the charging voltage and/or the charging current, so as to provide the required charging voltage and charging current to each sub power module connected correspondingly. In an embodiment of the present application, the controllable switching element 32116 may be a power switch, a source of the power switch is connected to the second port of the primary winding 32112, a drain of the power switch is grounded, and a gate of the power switch is connected to the main control circuit 32111.

As an example, with continued reference to fig. 4, in an embodiment of the present application, the flyback power conversion circuit 3211 further includes a primary capacitor Cin and a secondary capacitor, where the primary capacitor Cin is configured such that a first port is connected to the first port of the primary winding 32112 and a second port is grounded; the secondary side capacitors are configured to be equal in number to the secondary side windings; and a first port of any secondary winding is connected with a first port of a secondary capacitor, and a second port of the secondary winding is connected with a second port of the secondary capacitor. And setting the maximum value of the charging voltage provided by each output branch circuit to the corresponding connected sub power supply module by setting the rated voltage of each secondary side capacitor.

As an example, continuing to refer to fig. 4, in an embodiment of the present application, the flyback power conversion circuit 3211 further includes diodes configured in a number equal to the number of secondary windings; and the second port of any secondary winding is connected with the second port of the secondary capacitor through a diode, and the cathode of the diode is connected with the input end of the output branch circuit and the second port of the secondary capacitor, so that the energy stored in the secondary capacitor is prevented from being released through the secondary winding of the transformer.

Further, referring to fig. 5, in an embodiment of the present application, the battery management module 30 further includes a power supply path selection control module 33, the power supply path selection control module 33 is connected to the detection control module 31, the charging compatibility module 32, the first sub power module 11, the i-th sub power module 1i, … …, the n-th sub power module 1n, the first electronic module 201, the i-th power module 20i, … … and the n-th power module 20n, and is configured to receive the first control signal, and operate according to the first control signal, communicate a path through which the charging device 300 supplies power to the first electronic module 201, the i-th sub power module 1i, … … and the n-th sub power module 1n through the charging compatibility module 32, and communicate a path through which the charging device 300 supplies power to the first electronic module 201, the i-th power module 20i, … … and the n-th power module 20n through the charging compatibility module 32, and the power supply paths of the first sub power module 11, the ith sub power module 1i, … … and the nth sub power module 1n to the first electric module 201, the ith electric module 20i, … … and the nth electric module 20n are disconnected; the power supply path selection control module 33 is further configured to receive the second control signal, and operate according to the second control signal to communicate paths through which the first sub power module 11, the ith sub power module 1i, … …, and the nth sub power module 1n supply power to the first power module 201, the ith power module 20i, … …, and the nth power module 20n, where i is greater than or equal to 1 and less than or equal to n, and n is greater than or equal to 2. Therefore, the charging and discharging of the multiple batteries of the mobile equipment power supply 100 are reasonably and effectively controlled and managed, the multiple batteries of the mobile equipment power supply 100 are supplied with power by an external power supply in the charging process, and the multiple batteries of the mobile equipment power supply 100 provide high-quality power for the mobile equipment when the mobile equipment is not charged, so that the charging efficiency of the mobile equipment, the stability and the reliability of the battery work are effectively improved, the utilization rate of power energy storage is improved, and meanwhile, the standby service time of the mobile equipment is relatively prolonged.

Further, referring to fig. 6, in an embodiment of the present application, the power supply path selection control module 33 includes direction control circuits 331i and energy storage units 332i, where the number of the energy storage units 331i, the number of the direction control circuits 332i, the number of the voltage output branches of the charging compatible module 32, and the number of the sub power modules 20i are the same and are arranged in a one-to-one correspondence; each energy storage unit is respectively connected with each voltage output branch in parallel and is respectively connected with each sub power supply module in a one-to-one correspondence mode through the direction control circuit; the direction control circuit is configured to:

according to the action of the received first control signal, a path for supplying power to the sub power supply module 20i by the charging equipment 300 through the charging compatible module 32 is connected, and a path for supplying power to the electricity utilization module 1i by the sub power supply module 20i is disconnected, wherein i is more than or equal to 1 and less than or equal to n, and n is more than or equal to 2;

and communicating a path for supplying power to the electricity utilization module 1i by the sub power supply module 20i according to the action of the received second control signal, wherein i is more than or equal to 1 and less than or equal to n, and n is more than or equal to 2.

Further, with continuing reference to fig. 6, in an embodiment of the present application, the direction control circuit 331i includes a unidirectional conducting switch unit (not shown) and a controllable bidirectional switch unit (not shown) connected in parallel; the unidirectional conducting switch unit is configured to act when the power supply of the mobile device is connected to the charging device for charging, and the unidirectional conducting switch unit is changed from an off state to an on state; the controllable bidirectional switch unit is configured to be operated under the condition that the power supply of the mobile equipment is not charged, and a path for supplying power to each power utilization module by each sub power supply module is communicated.

Further, referring to fig. 7, in an embodiment of the present application, the mobile device power supply 100 further includes a voltage adjusting module 35, the voltage adjusting module 35 is connected to the detection control module 31, the charging compatible module 32, the first sub power module 11, the ith sub power module 1i, … …, the nth sub power module 1n, the first power module 201, the ith power module 20i, … …, and the nth power module 20n, and the voltage adjusting module 35 is configured to convert the received electric energy into a power supply voltage or a power supply current required by the first power module 201, the ith power module 20i, … …, and the nth power module 20n, and then supply power to the first power module 201, the ith power module 20i, … …, and the nth power module 20 n.

Specifically, with continued reference to fig. 7, in an embodiment of the present application, the unidirectional conducting switch unit may be a diode, and the controllable bidirectional switch unit may be a field effect transistor. To illustrate the implementation principle of the present embodiment with n-3, 3 capacitors in fig. 7 are connected in series, resulting in A, B, C, D four nodes. The 3 paths of voltages output by the charging compatible module are respectively applied to two ends of the three capacitors, one end of any capacitor is connected to the negative end of one sub-power supply module, the other end of the capacitor is connected to the positive end of the corresponding sub-power supply module through the direction control circuit and is connected to the input end of the voltage adjusting module 35, and electric energy is provided to the corresponding electricity utilization module through the voltage adjusting module 35. Because the capacitors are connected in series, the voltage provided by each sub-power supply module or the voltage provided by each voltage output branch of the charging compatible module can be superposed and then output, and different requirements of the power load on the amplitude of the power supply voltage are met. When the charging device 300 is connected and each sub-power supply module needs to be charged, the detection control module 31 controls each switch S1, S2 and S3 to be disconnected, a path for supplying power to each sub-power supply module is cut off, meanwhile, the output voltage of each voltage output branch of the charging compatible module 31 is slightly higher than the nominal voltage of the sub-power supply modules connected in a one-to-one correspondence manner, electric energy output by each voltage output branch is firstly transmitted to each capacitor connected in series and then transmitted to each sub-power supply module in a one-way manner through a diode, so as to meet the charging requirement of each sub-power supply module; meanwhile, the electric energy stored in each capacitor can be transmitted to the corresponding power utilization module after being subjected to voltage regulation through the voltage regulation module, so that the power supply requirement of the power utilization module is met. When the charging device 300 is not connected and each sub power supply module is in a discharging state, the detection control module 31 controls the switches S1, S2 and S3 to be turned on to form an electric energy output path from each sub power supply module to each capacitor, and then the electric energy stored in each capacitor is subjected to voltage regulation by the voltage regulation module and then is transmitted to the corresponding electricity utilization module. The detection control module 31 detects the state information of each sub power supply module and each power utilization module in real time, and when detecting that an abnormal state such as overvoltage or overcurrent occurs, the abnormal protection can be realized by controlling the switching-off of the switching tubes S1, S2 and S3 and the working state of the voltage regulation module.

Further, in one embodiment of the present application, the voltage regulation module includes a number of power conversion circuits equal to the number of the power consuming modules; the power conversion circuit comprises a BUCK circuit or a low-dropout linear voltage stabilizing circuit, and the BUCK circuit is used for converting electric energy provided by the battery pack management module into power supply voltage or power supply current required by the power utilization module; the low-dropout linear voltage stabilizing circuit is used for converting the electric energy provided by the battery pack management module into the power supply voltage or the power supply current required by the power utilization module.

For example, referring to fig. 8, in an embodiment of the present application, at least one of the BUCK circuits includes a first capacitive energy storage unit 3511, a first controllable switch unit 3512, a diode 3513, an inductive energy storage unit 3514, and a second capacitive energy storage unit 3515, where the first capacitive energy storage unit 3511 is configured to be connected in parallel with one of the sub power supply modules, for example, the first sub power supply module 11; the first controllable switch unit 3512 is configured such that a first port is connected with a first port of the first capacitive energy storage unit 3511; the diode 3513 is configured such that the cathode is connected to the second port of the first controllable switch unit 3512 and the anode is connected to the second port of the first capacitive energy storage unit 3511; the inductive energy storage unit 3514 is configured such that the first port is connected to both the second port of the first controllable switch unit 3512 and the cathode of the diode 3513; the second capacitive energy storage unit 3515 is configured such that the first port is connected to the second port of the inductive energy storage unit 3514, and the second port is connected to the anode of the diode 3513; the second capacitive energy storage unit 3515 is used to provide a required voltage amplitude or current amplitude to the power consuming module connected thereto, such as the first power consuming module 201, by controlling the switching frequency and/or the switching time of the first controllable switching unit 3512.

For example, referring to fig. 9, in an embodiment of the present application, at least one of the BUCK circuits includes a switch tube S1, a diode D1, an inductor L, and a capacitor C2, wherein a first port of the first power switch tube S1 is connected to a first port of the capacitor C1, a cathode of the diode D1 is connected to a second port of the first power switch tube S1, an anode of the diode D1 is connected to a second port of the capacitor C1, the inductor L is connected to both the second port of the first power switch tube S1 and the cathode of the diode D1, a first port of the capacitor C2 is connected to a second port of the inductor L, and a second port of the capacitor C2 is connected to an anode of the diode D1. Referring to fig. 7 and 8, the first sub-power module 11 may be disposed in parallel with the input terminal of the capacitor C1, and the first electronic module 201 may be disposed in parallel with the output terminal of the capacitor C2.

Further, in an embodiment of the present application, there is provided a mobile device including the mobile device power supply described in any of the embodiments of the present application. Dividing a power utilization circuit in mobile equipment into a plurality of different power utilization modules according to the magnitude of the amplitude of the power supply voltage required by each power utilization circuit, and determining the power supply voltage range of each power utilization module, wherein the maximum value of each power supply voltage range is different, and the maximum value of the power supply voltage required by each power utilization circuit in any power utilization module is smaller than or equal to the maximum value of the power supply voltage range of the power utilization module; determining the sub-power supply modules corresponding to the electricity utilization modules according to the power supply voltage ranges, so that the maximum value of the voltage provided by any sub-power supply module to the electricity utilization module connected with the sub-power supply module is greater than or equal to the maximum value of the power supply voltage required by the electricity utilization module; then, providing a mobile equipment power supply comprising a plurality of mutually independent sub-power supply modules, and connecting each sub-power supply module with an electricity utilization module in the mobile equipment in a one-to-one correspondence manner; the mutually independent sub-power supply modules are used for respectively supplying power to the power utilization modules corresponding to the sub-power supply modules, the situation that the voltage provided by the power supply is boosted to the working voltage required by the high-voltage power utilization module in the mobile equipment by the power converter with large input-output voltage difference is avoided, the heating problem caused by the power converter is avoided, the utilization rate of power storage is improved, and meanwhile the standby service time of the mobile equipment is relatively prolonged.

Further, referring to fig. 10, in an embodiment of the present application, a method for powering a mobile device is provided, including:

step 22, dividing an electricity utilization circuit in the mobile device into a plurality of different electricity utilization modules according to the magnitude of the amplitude of the required power supply voltage of each electricity utilization module, determining a sub-power supply module corresponding to each electricity utilization module according to the required power supply voltage range of each electricity utilization module, wherein the maximum values of the required power supply voltage ranges of the electricity utilization modules are different;

step 24, controlling the battery pack management module to operate when the power supply of the mobile device is not charged, and communicating a path through which each sub power supply module supplies power to each power utilization module, so that each sub power supply module is connected with each power utilization module in a one-to-one correspondence manner through the battery pack management module;

and step 26, when the power supply of the mobile device is connected to the charging device for charging, controlling the battery pack management module to act, connecting the power supply path of the charging device to each power utilization module while connecting the power supply path of the charging device to each power utilization module, and disconnecting the power supply path of each power utilization module from each power utilization module.

Specifically, please refer to fig. 10, the power utilization circuit in the mobile device is divided into a plurality of different power utilization modules according to the magnitude of the power supply voltage amplitude required by each power utilization module, and the power supply voltage range of each power utilization module is determined, where the maximum value of each power supply voltage range is different, and the maximum value of the power supply voltage required by each power utilization circuit in any power utilization module is smaller than or equal to the maximum value of the power supply voltage range of the power utilization module; determining the sub-power supply modules corresponding to the electricity utilization modules according to the power supply voltage ranges, so that the maximum value of the voltage provided by any sub-power supply module to the electricity utilization module connected with the sub-power supply module is greater than or equal to the maximum value of the power supply voltage required by the electricity utilization module; and then, the mutually independent sub power supply modules are used for respectively supplying power to the power utilization modules corresponding to the sub power supply modules, so that the problem that the power converter with large input-output voltage difference is used for boosting the voltage provided by the power supply to the working voltage required by the high-voltage power utilization module in the mobile equipment is solved, and the problem of heating caused by the power converter is solved. By arranging the battery pack management module connected with each sub power supply module, under the condition that the power supply of the mobile equipment is not charged, the battery pack management module is controlled to act, and a path for supplying power to each power utilization module by each sub power supply module is communicated, so that each sub power supply module is correspondingly connected with each power utilization module one by one through the battery pack management module; when the power supply of the mobile equipment is connected to the charging equipment for charging, the battery pack management module is controlled to act, the power supply passage of the charging equipment to each power utilization module is connected, and the power supply passage of each power utilization module to each power utilization module is disconnected. Therefore, the charging and discharging of the multiple batteries of the mobile equipment power supply are reasonably and effectively controlled and managed, the multiple batteries of the mobile equipment power supply are powered by an external power supply in the charging process, and the multiple batteries of the mobile equipment power supply provide high-quality power for the mobile equipment when the mobile equipment power supply is not charged, so that the charging efficiency of the mobile equipment, the working stability and the working reliability of the batteries are effectively improved, the utilization rate of power energy storage is improved, and meanwhile, the standby service time of the mobile equipment is relatively prolonged.

For specific limitations of the power supply method of the mobile device, reference may be made to the above specific limitations of the power supply of the mobile device, which are not described herein again.

It should be understood that the steps described are not to be performed in the exact order recited, and that the steps may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps described may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or in alternation with other steps or at least some of the sub-steps or stages of other steps.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (11)

1. A mobile device power supply is characterized by comprising a plurality of mutually independent sub power supply modules and a battery pack management module, wherein each sub power supply module is used for providing power supply voltages with different amplitudes for power utilization modules in mobile devices, and the maximum values of the required power supply voltage ranges of the power utilization modules are different;

the battery pack management module is connected with each sub-power supply module and is configured to:

when the power supply of the mobile equipment is not charged, a passage for supplying power to each power utilization module by each sub power supply module is communicated, so that each sub power supply module is correspondingly connected with each power utilization module one by one through the battery pack management module;

when the mobile device power supply is connected to the charging device for charging, the power supply path of the charging device for supplying power to each power utilization module is connected, and the power supply path of each power utilization module for supplying power to each power utilization module is disconnected.

2. The mobile device power supply of claim 1, wherein the battery management module further comprises:

the detection control module is connected with each sub-power supply module and each electricity utilization module, and is used for detecting access information of charging equipment, power state information of each sub-power supply module and electricity utilization state information of each electricity utilization module, generating a first control signal according to the access information, the power state information and the electricity utilization state information, and generating a second control signal according to the power state information and the electricity utilization state information;

and the charging compatible module is connected with the detection control module, each sub power supply module and each power utilization module, and is used for receiving the first control signal, communicating a path for the charging equipment to supply power to each sub power supply module and communicating a path for the charging equipment to supply power to each power utilization module according to the action of the first control signal.

3. The power supply of claim 2, wherein the charging-compatible module comprises a power conversion circuit, and the power conversion circuit is configured to convert the electric energy provided by the charging device into a charging voltage or a charging current required by each of the sub power modules, and then charge each of the sub power modules.

4. The mobile device power supply of claim 3, wherein the power conversion circuit comprises:

and the flyback power conversion circuit is used for converting the electric energy provided by the charging equipment into charging voltage required by each sub-power supply module correspondingly and then charging each sub-power supply module through a plurality of voltage output branches.

5. The mobile device power supply of any of claims 2-4, wherein the battery management module further comprises:

a power supply path selection control module, connected to the detection control module, the charging compatibility module, each sub power supply module, and each power utilization module, and configured to receive the first control signal, and operate according to the first control signal, to connect a path through which the charging device supplies power to each sub power supply module via the charging compatibility module, to connect a path through which the charging device supplies power to each power utilization module via the charging compatibility module, and to disconnect a path through which each sub power supply module supplies power to each power utilization module; the power supply path selection control module is also used for

And receiving the second control signal, and communicating a path for each sub-power supply module to supply power to each power utilization module according to the action of the second control signal.

6. The power supply of claim 5, wherein the power supply path selection control module comprises energy storage units and direction control circuits, and the number of the energy storage units, the number of the direction control circuits, the number of the voltage output branches of the charging compatible module, and the number of the sub power supply modules are the same and are arranged in a one-to-one correspondence;

each energy storage unit is respectively connected with each voltage output branch in parallel and is respectively connected with each sub power supply module in a one-to-one correspondence mode through the direction control circuit;

the direction control circuit is configured to:

according to the action of the received first control signal, a path for supplying power to each sub power supply module by the charging equipment through the charging compatible module is communicated, and a path for supplying power to each power utilization module by each sub power supply module is disconnected;

and communicating a path for each sub power supply module to supply power to each power utilization module according to the received second control signal action.

7. The mobile device power supply of claim 6, wherein the direction control circuit comprises a unidirectional conducting switch unit and a controllable bidirectional switch unit connected in parallel;

the unidirectional conducting switch unit is configured to act when the power supply of the mobile device is connected to the charging device for charging, and the unidirectional conducting switch unit is changed from an off state to an on state;

the controllable bidirectional switch unit is configured to be operated under the condition that the power supply of the mobile equipment is not charged, and a path for supplying power to each power utilization module by each sub power supply module is communicated.

8. The mobile device power supply of any of claims 2-4, further comprising:

and the voltage regulating module is connected with the detection control module, the charging compatible module, each sub power supply module and each electricity utilization module, and is configured to convert the received electric energy into power supply voltage or power supply current correspondingly required by each electricity utilization module and then supply power to each electricity utilization module.

9. The mobile device power supply of claim 8, wherein the voltage regulation module comprises a number of power conversion circuits equal to the number of power consuming modules;

the power conversion circuit includes:

the BUCK circuit is used for converting the electric energy provided by the battery pack management module into power supply voltage or power supply current required by the power utilization module; or

And the low-dropout linear voltage stabilizing circuit is used for converting the electric energy provided by the battery pack management module into the power supply voltage or the power supply current required by the power utilization module.

10. A mobile device, comprising:

the mobile device power supply of any one of claims 1-9.

11. A method for powering a mobile device, comprising:

dividing an electricity utilization circuit in mobile equipment into a plurality of different electricity utilization modules according to the magnitude of the amplitude of the required power supply voltage of each electricity utilization module, determining a sub-power supply module corresponding to each electricity utilization module according to the required power supply voltage range of each electricity utilization module, wherein the maximum value of the required power supply voltage range of each electricity utilization module is different;

under the condition that the power supply of the mobile equipment is not charged, controlling a battery pack management module to act, communicating a path for each sub-power supply module to supply power to each electricity utilization module, and enabling each sub-power supply module to be correspondingly connected with each electricity utilization module one by one through the battery pack management module;

when the power supply of the mobile equipment is connected to the charging equipment for charging, the battery pack management module is controlled to act, the power supply passage of the charging equipment to each power utilization module is connected while the power supply passage of the charging equipment to each power utilization module is connected, and the power supply passage of each power utilization module to each power utilization module is disconnected.

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