CN111162572B

CN111162572B - Electronic equipment and charging circuit and charging method thereof

Info

Publication number: CN111162572B
Application number: CN201811327471.8A
Authority: CN
Inventors: 杨鑫
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-11-08
Filing date: 2018-11-08
Publication date: 2021-08-13
Anticipated expiration: 2038-11-08
Also published as: CN111162572A

Abstract

The utility model is suitable for the technical field of terminals, an electronic equipment and charging circuit and charging method thereof are provided, through adopting the components of a whole that can function independently screen design mode, do benefit to and change and maintain each part of electronic equipment alone, through set up first power module at the base end of electronic equipment, the route of charging selection module, first interface and the voltage detection module charge, set up second power module and the second interface that charges at the screen end of electronic equipment, set up the module of charging in the first external power adapter of interface that charges, make screen end or base end accomplish more frivolous, the screen end can accomplish bigger size, do not produce the heat at screen end or base end during charging, thereby protect the internal circuit of screen end or base end.

Description

Electronic equipment and charging circuit and charging method thereof

Technical Field

The application belongs to the technical field of terminals, and particularly relates to an electronic device and a charging circuit and a charging method thereof.

Background

At present, multimedia display devices such as mobile phones, televisions, displays and the like are developing in the direction of light weight, thinness and large screen, and good visual enjoyment is brought to people.

However, the existing multimedia display devices are usually designed in an integrated manner, so that the display portion of the multimedia display device is difficult to achieve a larger size and a higher thickness, and it is not easy to replace and maintain each portion separately.

Disclosure of Invention

In view of this, embodiments of the present application provide an electronic device, a charging circuit thereof, and a charging method thereof, so as to solve the problems that the existing multimedia display device usually adopts an integrated design mode, so that it is difficult to make a display portion of the multimedia display device have a larger size and a higher thickness, and it is not easy to separately replace and maintain each portion.

A first aspect of an embodiment of the present application provides a charging circuit, which is applied to an electronic device, where the electronic device includes a separately arranged base end and a screen end in communication connection with the base end;

the charging circuit comprises a first power supply module, a charging path selection module, a first charging interface and a voltage detection module, wherein the first power supply module, the charging path selection module, the first charging interface and the voltage detection module are arranged at the base end; the charging circuit further comprises a second power module and a second charging interface which are arranged at the screen end;

the charging path selection module is respectively and electrically connected with the first power module, the first charging interface, the second charging interface and the voltage detection module, the voltage detection module is respectively and electrically connected with the first power module, the first charging interface and the second power module, the first charging interface is externally connected with a power adapter internally provided with a charging module, and the second power module is electrically connected with the second charging interface;

the voltage detection module is used for detecting the voltage of the first power supply module and the voltage of the second power supply module;

the voltage detection module is further configured to trigger the charging path selection module to connect the first charging interface and the first power module electrically when detecting that the voltage of the first power module is smaller than the voltage of the second power module, and trigger the charging module to output a voltage and a current suitable for the first power module to charge the first power module;

the voltage detection module is further configured to trigger the charging path selection module to connect the first charging interface and the second charging interface electrically when detecting that the voltage of the first power module is greater than the voltage of the second power module, and trigger the charging module to output a voltage and a current suitable for the second power module to charge the second power module;

the voltage detection module is further used for triggering the charging path selection module to be connected with the electric connection between the first charging interface and the first power module and the electric connection between the first charging interface and the second charging interface when detecting that the voltage of the first power module is equal to the voltage of the second power module, triggering the charging module to output the voltage and the current suitable for the first power module and the second power module, and simultaneously charging the first power module and the second power module.

In one embodiment, the first power module includes a first power management unit and a first rechargeable battery;

the first rechargeable battery is electrically connected with the first power supply management unit, the charging path selection module and the voltage detection module respectively;

the first power supply management unit is used for managing the electric quantity of the first rechargeable battery and converting the voltage output by the first rechargeable battery into a working voltage suitable for the base end;

the first rechargeable battery is used for storing electric energy.

In one embodiment, the first power management unit includes a first voltage regulation chip and a first power management chip;

the first voltage stabilizing chip is electrically connected with the first rechargeable battery and the first power management chip respectively;

the first voltage stabilizing chip is used for processing the voltage output by the first rechargeable battery into stable voltage and outputting the stable voltage to the first power management chip;

the first power management chip is used for processing the voltage output by the first voltage stabilizing chip into a working voltage suitable for the base end.

In one embodiment, the second power module includes a second power management unit and a second rechargeable battery;

the second rechargeable battery is electrically connected with the second power management unit and the voltage detection module respectively;

the second power supply management unit is used for managing the electric quantity of the second rechargeable battery and converting the voltage output by the second rechargeable battery into working voltage suitable for the screen end;

the second rechargeable battery is used for storing electric energy.

In one embodiment, the second power management unit includes a second regulator chip and a second power management chip;

the second voltage stabilizing chip is electrically connected with the second rechargeable battery and the second power management chip respectively;

the second voltage stabilizing chip is used for processing the voltage output by the second rechargeable battery into stable voltage and outputting the stable voltage to the second power management chip;

and the second power supply management chip is used for processing the voltage output by the second voltage stabilizing chip into a working voltage suitable for the screen end.

In one embodiment, the charge path selection module includes a first single pole single throw analog switch unit and a second single pole single throw analog switch unit;

the input end of the first single-pole single-throw analog switch unit and the input end of the second single-pole single-throw analog switch unit are both electrically connected with the first charging interface, the controlled end of the first single-pole single-throw analog switch unit and the controlled end of the second single-pole single-throw analog switch unit are both electrically connected with the voltage detection module, the output end of the first single-pole single-throw analog switch unit is electrically connected with the first power supply module, and the output end of the second single-pole single-throw analog switch unit is electrically connected with the second charging interface;

the voltage detection module is used for triggering the input end and the output end of the first single-pole single-throw analog switch unit to be connected when detecting that the voltage of the first power supply module is smaller than the voltage of the second power supply module;

the voltage detection module is further used for triggering the input end and the output end of the second single-pole single-throw analog switch unit to be connected when detecting that the voltage of the first power supply module is greater than the voltage of the second power supply module;

the voltage detection module is further configured to trigger the input end and the output end of the first single-pole single-throw analog switch unit to be connected and trigger the input end and the output end of the second single-pole single-throw analog switch unit to be connected when detecting that the voltage of the first power supply module is equal to the voltage of the second power supply module.

In one embodiment, the charging path selection module includes a first electronic switching unit and a second electronic switching unit;

the input end of the first electronic switch unit and the input end of the second electronic switch unit are electrically connected with the first charging interface, the controlled end of the first electronic switch unit and the controlled end of the second electronic switch unit are electrically connected with the voltage detection module, the output end of the first electronic switch unit is electrically connected with the first power supply module, and the output end of the second electronic switch unit is electrically connected with the second charging interface;

the voltage detection module is used for triggering the first electronic switch unit to be conducted when detecting that the voltage of the first power supply module is smaller than the voltage of the second power supply module;

the voltage detection module is further used for triggering the second electronic switch unit to be conducted when the voltage of the first power supply module is detected to be larger than the voltage of the second power supply module;

the voltage detection module is further configured to trigger the first electronic switch unit and the second electronic switch unit to be simultaneously turned on when detecting that the voltage of the first power supply module is equal to the voltage of the second power supply module.

A second aspect of the embodiments of the present application provides an electronic device, which includes a separately disposed base end and a screen end communicatively connected to the base end, and further includes the above charging circuit.

A third aspect of the embodiments of the present application provides a charging method, where the charging method is implemented based on the electronic device, and the charging method includes:

detecting, by the voltage detection module, a voltage of the first power supply module and a voltage of the second power supply module;

when the voltage of the first power supply module is smaller than the voltage of the second power supply module, the voltage detection module triggers the charging path selection module to connect the electric connection between the first charging interface and the first power supply module, and triggers the charging module to output the voltage and the current suitable for the first power supply module so as to charge the first power supply module;

when the voltage of the first power supply module is greater than the voltage of the second power supply module, the voltage detection module triggers the charging path selection module to connect the electric connection between the first charging interface and the second charging interface, and triggers the charging module to output the voltage and the current suitable for the second power supply module so as to charge the second power supply module;

when the voltage of the first power supply module is equal to the voltage of the second power supply module, the voltage detection module triggers the charging path selection module to be connected with the electric connection between the first charging interface and the first power supply module and the electric connection between the first charging interface and the second charging interface, triggers the charging module to output the voltage and the current suitable for the first power supply module and the second power supply module, and simultaneously charges the first power supply module and the second power supply module.

A fourth aspect of the embodiments of the present application provides an electronic device, which includes a separately disposed base end and a screen end communicatively connected to the base end, and further includes the above charging circuit, where the base end includes a memory, a processor, and a computer program stored in the memory and operable on the processor, and the processor implements the steps of the above method when executing the computer program.

According to the embodiment of the application, a split screen design mode is adopted, independent replacement and maintenance of each part of the electronic equipment are facilitated, the first power module, the charging path selection module, the first charging interface and the voltage detection module are arranged at the base end of the electronic equipment, the second power module and the second charging interface are arranged at the screen end of the electronic equipment, and the charging module is arranged in the power adapter externally connected with the first charging interface, so that the screen end or the base end can be thinner and lighter, the screen end can be larger in size, heat is not generated at the screen end or the base end during charging, and an internal circuit of the screen end or the base end is protected; when the voltage of the first power supply module is lower than that of the second power supply module, the first power supply module is charged; when the voltage of the first power supply module is greater than the voltage of the second power supply module, charging the second power supply module; when the voltage of the first power supply module is equal to the voltage of the second power supply module, the first power supply module and the second power supply module are charged simultaneously, and charging can be selectively carried out according to the residual electric quantity of the screen end and the base end.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described 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 other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an electronic device and a charging circuit according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of an electronic device and a charging circuit provided in the second embodiment of the present application;

fig. 3 is a schematic structural diagram of an electronic device and a charging circuit provided in a third embodiment of the present application;

fig. 4 and 5 are schematic structural diagrams of an electronic device and a charging circuit provided in a fourth embodiment of the present application;

fig. 6 is a schematic flowchart of a charging method according to a fifth embodiment of the present application;

fig. 7 is a schematic structural diagram of a charging system according to a sixth embodiment of the present application;

fig. 8 is a schematic structural diagram of an electronic device according to a seventh embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the drawings described above, are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.

Example one

As shown in fig. 1, the present embodiment provides an electronic device 1 and a charging circuit thereof, where the electronic device 1 includes a base end 2 separately disposed and a screen end 3 communicatively connected to the base end 2, the charging circuit includes a first power module 21 disposed at the base end 2, a charging path selection module 22, a first charging interface 23 and a voltage detection module 24, and the charging circuit further includes a second power module 31 disposed at the screen end 3 and a second charging interface 32.

In a specific application, the electronic device may be a mobile phone, a tablet computer, a notebook computer, a television, a personal digital assistant, a multimedia advertisement player, and the like. The base end can establish communication connection with the screen end in any wired communication connection or wireless communication connection mode. The base side is illustratively shown in fig. 1 communicatively coupled to the screen side via a communication link.

It should be understood that, in practical applications, the electronic device shown in fig. 1 may further include a sound system, the base side may further include a processor and other corresponding circuit structures, the screen side may further include a display screen and other corresponding circuit structures, only the portion related to the present embodiment is shown in fig. 1, and does not constitute a limitation to the specific structure of the electronic device.

As shown in fig. 1, the present embodiment provides the following connection relationship between the components in the electronic device 1:

the charging path selection module 22 is respectively electrically connected with the first power module 21, the first charging interface 23, the second charging interface 32 and the voltage detection module 24, the voltage detection module 24 is respectively electrically connected with the first power module 21 and the first charging interface 23 and is electrically connected with the second power module 31 through a communication link, the first charging interface 23 is externally connected with the power adapter 4 with the charging module 41 inside, and the second power module 31 is electrically connected with the second charging interface 32.

The working principle of the charging circuit provided by the embodiment is as follows:

the voltage detection module 24 is used for detecting the voltage of the first power supply module 21 and the voltage of the second power supply module 31;

the voltage detection module 24 is further configured to trigger the charging path selection module 22 to connect the electrical connection between the first charging interface 23 and the first power module 21 when the voltage of the first power module 21 is less than the voltage of the second power module 31, and trigger the charging module 41 to output a voltage and a current suitable for the first power module 21, so as to charge the first power module 21;

the voltage detection module 24 is further configured to trigger the charging path selection module 22 to connect the electrical connection between the first charging interface 23 and the second charging interface 32 when the voltage of the first power module 21 is greater than the voltage of the second power module 31, and trigger the charging module 41 to output a voltage and a current suitable for the second power module 31 to charge the second power module 31;

the voltage detection module 24 is further configured to trigger the charging path selection module 22 to connect the electrical connection between the first charging interface 23 and the first power module 21 and the electrical connection between the first charging interface 23 and the second charging interface 32 when the voltage of the first power module 21 is equal to the voltage of the second power module 31, and trigger the charging module 41 to output the voltage and the current suitable for the first power module 21 and the second power module 31, and simultaneously charge the first power module 21 and the second power module 31.

In a specific application, the charging path selection module is used for connecting corresponding charging paths according to the voltage of the first power supply module and the voltage of the second power supply module to charge the first power supply module and/or the second power supply module, and the charging path selection module can be realized through an analog switch, an electronic switch, a chip with corresponding functions or a circuit structure.

In specific application, the first power module and the second power module both have an energy storage function and are used for supplying power to the base end and the screen end respectively.

In specific application, the voltage detection module is used for detecting the voltage output by the first power supply module and the second power supply module so as to obtain the residual electric quantity of the first power supply module and the second power supply module, generating a corresponding path selection trigger signal and a corresponding charging trigger signal according to the voltage output by the first power supply module and the second power supply module, directly feeding the path selection trigger signal back to the charging path selection module, feeding the charging trigger signal back to the charging module through the first charging interface, and feeding the path selection trigger signal fed back to the charging path selection module by the voltage detection module and the charging trigger signal fed back to the charging module by the voltage detection module according to the difference of the magnitude relation between the voltage of the first power supply module and the voltage of the second power supply module. For example, according to the difference of the magnitude relationship between the voltage of the first power supply module and the voltage of the second power supply module, a level signal or a pulse signal with different voltages is sent out as a path selection trigger signal or a charging trigger signal. The voltage detection module may be implemented by a chip or a circuit structure having a corresponding function.

In a specific application, the first charging interface can select any type of charging interface according to actual needs, for example, various types of USB interfaces, circular dc sockets, various types of personal computer power sockets (e.g., PC/XT power socket, AT power socket, ATX power socket, BTX power socket, EPS power socket, WTX power socket, SFX power socket, CFX power socket, LFX power socket, etc.). Correspondingly, the second charging interface should select any charging interface that can be electrically connected with the first charging interface to realize the charging function. The power adapter should select a power conversion device, such as a dc-dc conversion device or an ac-dc conversion device, which can be connected to the first charging interface correspondingly and has an output voltage and current equivalent to the operating voltage and operating current of the electronic device.

In specific application, a charging module in the power adapter is used for realizing a power supply conversion function, when the voltage of a first power supply module is smaller than the voltage of a second power supply module, the charging module receives a first charging trigger signal fed back by a voltage detection module, converts the voltage and the current of a power supply accessed by the power adapter into the voltage and the current suitable for the first power supply module, and charges the first power supply module; when the voltage of the first power supply module is greater than the voltage of the second power supply module, the charging module receives a second charging trigger signal fed back by the voltage detection module, converts the voltage and the current of the power supply accessed by the power adapter into the voltage and the current suitable for the second power supply module, and charges the second power supply module; when the voltage of the first power supply module is equal to the voltage of the second power supply module, the charging module receives a third charging trigger signal fed back by the voltage detection module, converts the voltage and the current of the power supply accessed by the power adapter into the voltage and the current suitable for the first power supply module and the second power supply module, and simultaneously charges the first power supply module and the second power supply module. According to different charging modes, the charging module can be realized by selecting a direct current-to-direct current conversion circuit/chip and a voltage conversion circuit/chip which are suitable for constant voltage charging, constant current charging or pulse charging modes, or by selecting an alternating current-to-direct current conversion circuit/chip and a voltage conversion circuit/chip.

In a specific application, when the voltage of the first power supply module is smaller than the voltage of the second power supply module, the first power supply module is charged; when the voltage of the first power supply module is greater than the voltage of the second power supply module, charging the second power supply module; when the voltage of the first power supply module is equal to the voltage of the second power supply module, the first power supply module and the second power supply module are charged simultaneously, the voltage balance between the two power supply modules can be kept, and the power supply module with lower voltage is charged preferentially, so that the situation that any power supply module cannot normally supply power due to too low voltage is avoided.

In one embodiment, before charging the first power module and the second power module, the voltage detection module may first determine whether voltages of the first power module and the second power module are lower than a preset voltage threshold;

if the voltage of the first power supply module and the voltage of the second power supply module are both greater than or equal to the preset voltage threshold, disconnecting the electric connection between the first charging interface and the first power supply module, disconnecting the electric connection between the first charging interface and the second charging interface, and not charging the first power supply module and the second power supply module;

if the voltage of the first power supply module is lower than the preset voltage threshold, the voltage detection module triggers the charging path selection module to be connected with the electric connection between the first charging interface and the first power supply module, and the first power supply module is charged through the power adapter;

if the voltage of the second power supply module is lower than the preset voltage threshold, the voltage detection module triggers the charging path selection module to be connected with the electric connection between the first charging interface and the second charging interface, and the second power supply module is charged through the power adapter;

if the voltage of the first power supply module is lower than the preset voltage threshold and the voltage of the second power supply module is lower than the preset voltage threshold, the voltage of the first power supply module and the voltage of the second power supply module are compared to determine which power supply module to charge.

In a specific application, the preset voltage threshold may be a rated voltage when the first power module and the second power module are fully charged, or may be any voltage value between [ 90% of rated voltage and 100% of rated voltage ]. By setting the preset voltage threshold to any voltage value between [ 90% rated voltage, 100% rated voltage), repeated charging of the power supply module when the electric quantity of the power supply module is close to the full electric quantity can be avoided, thereby improving the service life of the power supply module. When the voltage of the first power supply module is greater than or equal to the preset voltage threshold, the first charging interface is disconnected from the first power supply module; when the voltage of the second power module is greater than or equal to the preset voltage threshold, the first charging interface is disconnected from the second charging interface, the first power module and the second power module can be prevented from being overcharged, and overcharge protection of the first power module and the second power module is achieved.

In one embodiment, the operation principle of the charging circuit provided in this embodiment further includes:

the voltage detection module detects whether the first charging interface is electrically connected with the power adapter or not;

if the first charging interface is not electrically connected with the power adapter, the voltage detection module triggers the charging path selection module to disconnect the electrical connection between the first charging interface and the first power module and disconnect the electrical connection between the first charging interface and the second charging interface.

In specific application, when the first charging interface is not electrically connected with the power adapter, the first charging interface is disconnected from the first power module, and the first charging interface is disconnected from the second charging interface, so that the first power module and the second power module can be prevented from being short-circuited, and short-circuit protection of the first power module and the second power module is realized.

In one embodiment, the base end is provided with a first wireless access point, and the screen end is provided with a second wireless access point.

In a specific application, a first wireless Access Point (AP) and a second AP are used as a connection bridge between a wired network and a wireless network, so as to construct a small wireless lan, connect wireless communication devices (e.g., a mobile phone, a tablet computer, a notebook computer, a personal digital assistant, etc.) together through a wireless network, and access an ethernet.

In one embodiment, the base end is provided with a first wireless communication module, and the screen end is provided with a second wireless communication module.

In a specific application, the first wireless communication module and the second wireless communication module may include a WiFi module, a bluetooth module, a ZigBee module, and other wireless communication modules, and are configured to implement wireless communication with other wireless communication devices (e.g., a mobile phone, a tablet computer, a notebook computer, a personal digital assistant, a cloud server, and the like).

In one embodiment, the charging circuit further comprises:

the first short-circuit protection module is electrically connected between the first charging interface and the charging module of the power adapter; and

a second short protection module electrically connected between the charging path selection module and the second charging interface.

In a specific application, the first short-circuit protection module and the second short-circuit protection module can be realized by a short-circuit switch, a circuit breaker, a leakage protection switch, a leakage protector and the like.

In the embodiment, a split screen design mode is adopted, so that each part of the electronic equipment is favorably and independently replaced and maintained, the base end of the electronic equipment is provided with the first power module, the charging path selection module, the first charging interface and the voltage detection module, the screen end of the electronic equipment is provided with the second power module and the second charging interface, and the charging module is arranged in the power adapter externally connected with the first charging interface, so that the screen end or the base end can be thinner and lighter, the screen end can be larger in size, heat is not generated at the screen end or the base end during charging, and an internal circuit of the screen end or the base end is protected; when the voltage of the first power supply module is lower than that of the second power supply module, the first power supply module is charged; when the voltage of the first power supply module is greater than the voltage of the second power supply module, charging the second power supply module; when the voltage of the first power supply module is equal to the voltage of the second power supply module, the first power supply module and the second power supply module are charged simultaneously, and charging can be selectively carried out according to the residual electric quantity of the screen end and the base end.

Example two

As shown in fig. 2, in the present embodiment, the first power supply module 21 in the first embodiment includes a first power supply management unit 211 and a first rechargeable battery 212;

the first rechargeable battery 212 is electrically connected to the first power management unit 211, the charging path selection module 22, and the voltage detection module 24, respectively.

In a specific application, the first power management unit may adopt any power management chip, device or circuit structure capable of managing the electric quantity of the first rechargeable battery and converting the voltage output by the first rechargeable battery into a working voltage suitable for other devices in the base terminal.

In a specific application, the first rechargeable battery can be any rechargeable battery capable of being recharged and storing electric energy according to actual needs, for example, a rechargeable lithium ion battery.

As shown in fig. 2, in the present embodiment, the second power module 31 in the first embodiment includes a second power management unit 311 and a second rechargeable battery 312;

the second rechargeable battery 312 is electrically connected to the second power management unit 311 and the voltage detection module 24, respectively.

In a specific application, the second power management unit may select any power management chip, device, or circuit structure that can manage the electric quantity of the second rechargeable battery and convert the voltage output by the second rechargeable battery into a working voltage suitable for other devices in the screen end.

In a specific application, the second rechargeable battery can be any rechargeable battery capable of being recharged and storing electric energy according to actual needs, for example, a rechargeable lithium ion battery.

In this embodiment, the power management unit and the rechargeable battery are respectively disposed in the first power module and the second power module, so that independent power supply and power management of the base end and the screen end can be realized, the base end and the screen end can work independently without interference, and independent maintenance and component replacement are facilitated when a fault occurs.

EXAMPLE III

As shown in fig. 3, in this embodiment, the first power management unit 211 in the second embodiment includes a first regulator chip 2111 and a first power management chip 2112;

the first voltage stabilization chip 2111 is electrically connected to the first rechargeable battery 212 and the first power management chip 2112, respectively.

In a specific application, the first voltage regulator chip may be any type of voltage regulator chip according to actual needs, for example, a low dropout regulator (LDO). The first voltage stabilizing chip processes the voltage of the electric energy output by the first rechargeable battery into stable voltage and outputs the stable voltage to the first power management chip, and the first power management chip processes the voltage output by the first voltage stabilizing chip into working voltage suitable for other devices in the base end and supplies power for other devices.

As shown in fig. 3, in the present embodiment, the second power management unit 311 in the second embodiment includes a second regulator chip 3111 and a second power management chip 3112;

the second voltage stabilization chip 3111 is electrically connected to the second rechargeable battery 312 and the second power management chip 3112, respectively.

In specific application, the second voltage stabilizing chip can be any type of voltage stabilizing chip according to actual needs, for example, a low dropout linear regulator. The second voltage stabilizing chip processes the voltage of the electric energy output by the second rechargeable battery into stable voltage and outputs the stable voltage to the second power management chip, and the second power management chip processes the voltage output by the second voltage stabilizing chip into working voltage suitable for other devices in the screen end and supplies power for other devices.

In this embodiment, the first voltage stabilizing chip and the second voltage stabilizing chip are respectively disposed in the first power module and the second power module, and output voltages of the first rechargeable battery and the second rechargeable battery are respectively adjusted, so that stability of the power supply can be improved, stable power supply to the base end and the screen end is realized, and service lives of the base end and the screen end are prolonged.

Example four

In this embodiment, the charging path selection module in the first, second or third embodiment includes a first single-pole single-throw analog switch unit and a second single-pole single-throw analog switch unit, or includes a first electronic switch unit and a second electronic switch unit.

Fig. 4 exemplarily shows a case where the charging path selection module 22 in the first embodiment includes a first single-pole single-throw analog switch unit and a second single-pole single-throw analog switch unit.

In a specific application, the first single-pole single-throw analog switch unit and the second single-pole single-throw analog switch unit may be specifically single-pole single-throw analog switches implemented by logic circuits.

Fig. 4 exemplarily shows that the first single-pole single-throw analog switch unit is a first single-pole single-throw analog switch K1, and the second single-pole single-throw analog switch unit is a second single-pole single-throw analog switch K2.

As shown in fig. 4, in this embodiment, the connection relationship between the first single-pole single-throw analog switch unit and the second single-pole single-throw analog switch unit and other devices is as follows:

the input end of the first single-pole single-throw analog switch unit and the input end of the second single-pole single-throw analog switch unit are both electrically connected with the first charging interface 23, the controlled end of the first single-pole single-throw analog switch unit and the controlled end of the second single-pole single-throw analog switch unit are both electrically connected with the voltage detection module 24, the output end of the first single-pole single-throw analog switch unit is electrically connected with the first power module 21, and the output end of the second single-pole single-throw analog switch unit is electrically connected with the second charging interface 32.

Based on the structure shown in fig. 4, the charging circuit provided in this embodiment operates as follows:

when the voltage detection module 24 detects that the voltage of the first power module 21 is less than the voltage of the second power module 31, the voltage detection module 24 triggers the input end and the output end of the first single-pole single-throw analog switch unit to be connected;

when the voltage detection module 24 detects that the voltage of the first power module 21 is greater than the voltage of the second power module 31, the voltage detection module 24 triggers the input end and the output end of the second single-pole single-throw analog switch unit to be connected;

when the voltage detection module 24 detects that the voltage of the first power module 21 is equal to the voltage of the second power module 31, the voltage detection module 24 triggers the input terminal and the output terminal of the first single-pole single-throw analog switch unit to be connected, and triggers the input terminal and the output terminal of the second single-pole single-throw analog switch unit to be connected.

Fig. 5 exemplarily shows a case where the charging path selection module 22 in the first embodiment includes a first electronic switch unit 221 and a second electronic switch unit 222.

In a specific application, the first electronic switching unit and the second electronic switching unit may be specifically electronic switches implemented by logic circuits and/or electronic switching tubes (e.g., triodes or field effect tubes).

As shown in fig. 5, in the present embodiment, the connection relationships between the first electronic switch unit 221 and the first electronic switch unit 222 and other devices are as follows:

the input end of the first electronic switch unit 221 and the input end of the first electronic switch unit 222 are electrically connected with the first charging interface 23, the controlled end of the first electronic switch unit 221 and the controlled end of the first electronic switch unit 222 are electrically connected with the voltage detection module 24, the output end of the first electronic switch unit 221 is electrically connected with the first power module 21, and the output end of the first electronic switch unit 222 is electrically connected with the second charging interface 32;

when the voltage detection module 24 detects that the voltage of the first power module 21 is less than the voltage of the second power module 31, the voltage detection module 24 triggers the first electronic switch unit 221 to be turned on;

when the voltage detection module 24 detects that the voltage of the first power module 21 is greater than the voltage of the second power module 31, the voltage detection module 24 triggers the second electronic switch unit 222 to be turned on;

when the voltage detection module 24 detects that the voltage of the first power module 21 is equal to the voltage of the second power module 31, the voltage detection module 24 triggers the first electronic switch unit 221 and the first electronic switch unit 222 to be turned on simultaneously.

In the embodiment, the charging path selection module is formed by adopting the single-pole single-throw analog switch unit or the electronic switch unit so as to realize the function of switching the charging path, and the charging path selection module is simple in structure, easy to realize and low in cost.

EXAMPLE five

As shown in fig. 6, the present embodiment provides a charging method for an electronic device, which is implemented based on the electronic device in any one of the first to fourth embodiments, the charging method includes:

step S601, detecting the voltage of the first power supply module and the voltage of the second power supply module through the voltage detection module;

step S602, when the voltage of the first power module is lower than the voltage of the second power module, triggering, by the voltage detection module, the charging path selection module to connect the electrical connection between the first charging interface and the first power module, and triggering the charging module to output a voltage and a current suitable for the first power module, so as to charge the first power module;

step S603, when the voltage of the first power supply module is greater than the voltage of the second power supply module, the voltage detection module triggers the charging path selection module to connect the electrical connection between the first charging interface and the second charging interface, and triggers the charging module to output the voltage and the current suitable for the second power supply module, so as to charge the second power supply module;

step S604, when the voltage of the first power module is equal to the voltage of the second power module, the voltage detection module triggers the charging path selection module to connect the electrical connection between the first charging interface and the first power module and the electrical connection between the first charging interface and the second charging interface, and triggers the charging module to output the voltage and the current suitable for the first power module and the second power module, and simultaneously charge the first power module and the second power module.

In a Specific Application, the charging method may be executed by a Processor disposed at the base end and electrically connected to the voltage detection module, or may be directly executed by the voltage detection module having a control function, where the Processor may be a Central Processing Unit (CPU), another general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA), another Programmable logic device, a discrete Gate or a transistor logic device, a discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In one embodiment, the charging method further comprises:

detecting whether the first charging interface is electrically connected with the power adapter or not through the voltage detection module;

In one embodiment, step S601 is preceded by:

judging whether the voltages of the first power supply module and the second power supply module are lower than a preset voltage threshold value or not through the voltage detection module;

if the voltages of the first power supply module and the second power supply module are both greater than or equal to a preset voltage threshold, the voltage detection module does not trigger the charging path selection module to be connected with the electric connection between the first charging interface and the first power supply module, does not trigger the charging path selection module to be connected with the electric connection between the first charging interface and the second charging interface, and does not charge the first power supply module and the second power supply module;

if the voltage of the first power supply module is lower than a preset voltage threshold, triggering the charging path selection module through the voltage detection module to connect the electric connection between the first charging interface and the first power supply module, and charging the first power supply module through the power adapter;

if the voltage of the second power supply module is lower than a preset voltage threshold, the voltage detection module triggers the charging path selection module to be connected with the electric connection between the first charging interface and the second charging interface, and the second power supply module is charged through the power adapter;

if the voltage of the first power module is lower than the preset voltage threshold and the voltage of the second power module is lower than the preset voltage threshold, the process proceeds to step S601.

In the embodiment, when the voltage of the first power supply module is smaller than the voltage of the second power supply module, the first power supply module is charged through the power adapter; when the voltage of the first power supply module is greater than the voltage of the second power supply module, the second power supply module is charged through the power adapter; when the voltage of the first power supply module is equal to the voltage of the second power supply module, the first power supply module and the second power supply module are charged through the power adapter at the same time, and charging can be selectively carried out according to the residual electric quantity of the screen end and the base end.

It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

EXAMPLE six

As shown in fig. 7, the present embodiment provides a charging system 7 for an electronic device, which is implemented based on the electronic device in any one of the first to fourth embodiments, where the charging system 7 includes:

a detection unit 701, configured to detect, by the voltage detection module, a voltage of the first power supply module and a voltage of the second power supply module;

a first charging unit 702, configured to, when the voltage of the first power module is smaller than the voltage of the second power module, trigger the charging path selection module to connect the electrical connection between the first charging interface and the first power module through the voltage detection module, and trigger the charging module to output a voltage and a current suitable for the first power module, so as to charge the first power module;

the second charging unit 703 is configured to, when the voltage of the first power module is greater than the voltage of the second power module, trigger the charging path selection module to connect the electrical connection between the first charging interface and the second charging interface through the voltage detection module, and trigger the charging module to output a voltage and a current suitable for the second power module, so as to charge the second power module;

a third charging unit 704, configured to, when the voltage of the first power module is equal to the voltage of the second power module, trigger the charging path selection module to connect the electrical connection between the first charging interface and the first power module and the electrical connection between the first charging interface and the second charging interface through the voltage detection module, and trigger the charging module to output a voltage and a current suitable for the first power module and the second power module, and simultaneously charge the first power module and the second power module.

In a Specific Application, the charging system may be a software program module disposed in a Processor electrically connected to the voltage detection module and disposed at the base end, or may be a software program module in the voltage detection module with a control function, where the Processor may be a Central Processing Unit (CPU), or may be another general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA), or another Programmable logic device, a discrete Gate or a transistor logic device, a discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In one embodiment, the detection module is further configured to detect, by the voltage detection module, whether the first charging interface is electrically connected to the power adapter;

the charging system 7 further includes:

and the disconnection unit is used for triggering the charging path selection module to disconnect the electric connection between the first charging interface and the first power module and the electric connection between the first charging interface and the second charging interface through the voltage detection module if the first charging interface is not electrically connected with the power adapter.

In one embodiment, the charging system 7 further comprises:

the judging unit is used for judging whether the voltages of the first power supply module and the second power supply module are lower than a preset voltage threshold value or not through the voltage detection module;

the fourth charging unit is used for not triggering the charging path selection module to be connected with the electric connection between the first charging interface and the first power supply module through the voltage detection module and not triggering the charging path selection module to be connected with the electric connection between the first charging interface and the second charging interface if the voltages of the first power supply module and the second power supply module are both larger than or equal to a preset voltage threshold value, and not charging the first power supply module and the second power supply module;

the fifth charging unit is used for triggering the charging path selection module to be connected with the electric connection between the first charging interface and the first power supply module through the voltage detection module if the voltage of the first power supply module is lower than a preset voltage threshold value, and charging the first power supply module through the power adapter;

the sixth charging unit is used for triggering the charging path selection module to be connected with the electric connection between the first charging interface and the second charging interface through the voltage detection module if the voltage of the second power supply module is lower than a preset voltage threshold value, and charging the second power supply module through the power adapter;

and the skipping unit is used for skipping to the detection unit if the voltage of the first power supply module is lower than a preset voltage threshold and the voltage of the second power supply module is lower than a preset voltage threshold.

EXAMPLE seven

As shown in fig. 8, the present embodiment provides an electronic device 8, which includes: the base side 81 separately provided and the screen side 82 communicatively connected to the base side 81 through the communication link further include a charging circuit (not shown in the figure) in any one of the first to fourth embodiments, and the base side 81 includes a processor 811, a memory 812, and a computer program 813, such as a charging program, stored in the memory 812 and operable on the processor 811. The processor 811 implements the steps in the above-described charging method embodiment, such as steps S601 to S604 shown in fig. 6, when executing the computer program 813. Alternatively, the processor 811, when executing the computer program 813, implements the functions of the modules/units in the device embodiments, such as the functions of the modules 701 to 704 shown in fig. 7.

In a specific application, the electronic device provided in this embodiment is the electronic device in any one of the first to fourth embodiments, and components with the same name but different reference numerals are the same components.

Illustratively, the computer program 813 may be partitioned into one or more modules/units that are stored in the memory 812 and executed by the processor 811 to accomplish the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 813 in the electronic device 8. For example, the computer program 813 may be divided into a detection module, a first charging unit, a second charging unit, and a third charging unit, and each module has the following specific functions:

the detection unit is used for detecting the voltage of the first power supply module and the voltage of the second power supply module through the voltage detection module;

the first charging unit is used for triggering the charging path selection module to be connected with the electric connection between the first charging interface and the first power supply module through the voltage detection module when the voltage of the first power supply module is smaller than the voltage of the second power supply module, triggering the charging module to output voltage and current suitable for the first power supply module, and charging the first power supply module;

the second charging unit is used for triggering the charging path selection module to be connected with the electric connection between the first charging interface and the second charging interface through the voltage detection module when the voltage of the first power supply module is greater than the voltage of the second power supply module, triggering the charging module to output voltage and current suitable for the second power supply module, and charging the second power supply module;

and the third charging unit is used for triggering the charging path selection module to be connected with the electric connection between the first charging interface and the first power module and the electric connection between the first charging interface and the second charging interface through the voltage detection module when the voltage of the first power module is equal to the voltage of the second power module, triggering the charging module to output the voltage and the current suitable for the first power module and the second power module, and simultaneously charging the first power module and the second power module.

Those skilled in the art will appreciate that fig. 8 is merely an example of an electronic device 8 and does not constitute a limitation of the electronic device 8 and may include more or fewer components than shown, or some components may be combined, or different components, e.g., the electronic device may also include input-output devices, network access devices, buses, etc.

The Processor 60 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The storage 812 may be an internal storage unit of the electronic device 8, such as a hard disk or a memory of the electronic device 8. The memory 812 may also be an external storage device of the electronic device 8, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the electronic device 8. Further, the memory 812 may also include both an internal storage unit and an external storage device of the electronic device 8. The memory 812 is used for storing the computer program and other programs and data required by the electronic device. The memory 812 may also be used to temporarily store data that has been output or is to be output.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. . Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. A charging circuit is applied to electronic equipment and is characterized in that the electronic equipment comprises a base end and a screen end, wherein the base end is arranged in a separated mode, and the screen end is in communication connection with the base end;

the charging path selection module is used for switching on corresponding charging paths according to the voltage of the first power supply module and the voltage of the second power supply module to charge the first power supply module and/or the second power supply module;

2. The charging circuit of claim 1, wherein the first power module comprises a first power management unit and a first rechargeable battery;

the first rechargeable battery is used for storing electric energy.

3. The charging circuit of claim 2, wherein the first power management unit comprises a first regulator chip and a first power management chip;

4. The charging circuit of claim 1, wherein the second power module comprises a second power management unit and a second rechargeable battery;

the second rechargeable battery is used for storing electric energy.

5. The charging circuit of claim 4, wherein the second power management unit comprises a second regulation chip and a second power management chip;

6. The charging circuit according to any one of claims 1 to 5, wherein the charging path selection module comprises a first single-pole single-throw analog switch unit and a second single-pole single-throw analog switch unit;

7. The charging circuit according to any one of claims 1 to 5, wherein the charging path selection module comprises a first electronic switch unit and a second electronic switch unit;

8. An electronic device, comprising a base end and a screen end, wherein the base end is separately arranged, the screen end is in communication connection with the base end, and the electronic device further comprises the charging circuit according to any one of claims 1 to 7.

9. A charging method implemented based on the electronic device of claim 8, the charging method comprising:

10. An electronic device comprising a separately disposed base terminal and a screen terminal communicatively connected to the base terminal, and further comprising the charging circuit of any one of claims 1 to 7, wherein the base terminal comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the method of claim 9 when executing the computer program.