CN111162571B - Charging circuit and electronic equipment - Google Patents
Charging circuit and electronic equipment Download PDFInfo
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- CN111162571B CN111162571B CN201811326605.4A CN201811326605A CN111162571B CN 111162571 B CN111162571 B CN 111162571B CN 201811326605 A CN201811326605 A CN 201811326605A CN 111162571 B CN111162571 B CN 111162571B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The application is applicable to the technical field of terminals, and provides a charging circuit and an electronic device, which are beneficial to independently replacing and maintaining each part of the electronic device by adopting a split screen design mode, and by providing the charging circuit applied to the electronic device, a first power module, a first charging module and a first charging interface of the charging circuit are arranged at a base end of the electronic device, a second power module and a second charging interface of the charging circuit are arranged at a screen end of the electronic device, an external power supply is connected to charge the first power module through the first charging interface, and the second power module is charged through the first power module, so that the structure of the screen end can be effectively simplified, the space of the screen end is saved, the screen end can be thinner and more screen-sized, heat is not generated at the screen end during charging, and the internal circuit structure of the screen end can be effectively protected, the service life of the screen end is prolonged.
Description
Technical Field
The application belongs to the technical field of terminals, and particularly relates to a charging circuit and electronic equipment.
Background
At present, display terminals such as mobile phones, televisions, displays and the like are developing towards light and thin, and are small in size and high in attractiveness.
However, the conventional display terminal usually adopts an integrated design mode, so that the display part of the display terminal cannot be larger in size and higher in thickness, and the display terminal is not beneficial to independent replacement and maintenance of each part.
Disclosure of Invention
In view of this, an embodiment of the present application provides a charging circuit and an electronic device, so as to solve the problem that the conventional electronic device generally includes charging modules disposed at a screen end and a base end, and thus the space of the screen end is seriously occupied, the screen end cannot be made thinner and lighter, and heat is generated during charging, which damages an internal circuit structure of the screen end.
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 base end and a screen end, the base end and the screen end are separately arranged, the charging circuit includes a first power module, a first charging module and a first charging interface, the first power module, the first charging module and the first charging interface are arranged at the base end, and the charging circuit further includes a second power module and a second charging interface, the second power module and the second charging interface are arranged at the screen end;
the first charging module is electrically connected with the first power supply module, the first charging interface and the second charging interface respectively, and the second power supply module is electrically connected with the second charging interface;
the first charging module is connected with an external power supply through the first charging interface to charge the first power supply module, and the first charging module also charges the second power supply module through the first power supply module.
In one embodiment, the charging circuit further comprises a voltage detection module disposed at the base end;
the voltage detection module is electrically connected with the first power supply module, the first charging module and the second power supply module respectively;
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 used for triggering the first charging module to be connected to an external power supply through the first charging interface to charge the first power supply module when the voltage of the first power supply module is smaller than a first preset voltage;
the voltage detection module is further used for triggering the first charging module to charge the second power supply module through the first power supply module when the voltage of the second power supply module is smaller than a second preset voltage.
In one embodiment, the first charging module includes a first charging unit and a first charging path selection unit;
the first charging unit is electrically connected with the first charging interface and the first charging path selection unit respectively, and the first charging path selection unit is electrically connected with the first power module, the second charging interface and the voltage detection module respectively;
the voltage detection module is used for triggering the first charging path selection unit to be connected with the first charging interface and the first power supply module when the voltage of the first power supply module is smaller than a first preset voltage, and an external power supply is connected to the first charging interface to charge the first power supply module;
the voltage detection module is further used for triggering the first charging path selection unit to be connected with the first power supply module and the second power supply module when the voltage of the second power supply module is smaller than a second preset voltage, and the second power supply module is charged through the first power supply module.
In one embodiment, the first charging path selection unit includes a first electronic switching subunit and a second electronic switching subunit;
the first electronic switch subunit is respectively and electrically connected with the first power supply module, the voltage detection module and the first charging unit, and the second electronic switch subunit is respectively and electrically connected with the second charging interface, the voltage detection module and the first charging unit;
the voltage detection module is used for triggering the input end and the output end of the first electronic switch subunit to be connected when the voltage of the first power supply module is smaller than a first preset voltage;
and the voltage detection module is also used for triggering the input end and the output end of the first electronic switch subunit to be connected and triggering the input end and the output end of the second electronic switch subunit to be connected when the voltage of the second power supply module is smaller than a second preset voltage.
In one embodiment, the first charging module includes a first charging unit and a first charging path selection unit;
the first charging unit is electrically connected with the first power module and the first charging path selection unit respectively, and the first charging path selection unit is electrically connected with the first charging interface, the second charging interface and the voltage detection module respectively;
the voltage detection module is used for triggering the first charging path selection unit to be connected with the first charging interface and the first power supply module when the voltage of the first power supply module is smaller than a first preset voltage, and an external power supply is connected to the first charging interface to charge the first power supply module;
the voltage detection module is further used for triggering the first charging path selection unit to be connected with the first power supply module and the second power supply module when the voltage of the second power supply module is smaller than a second preset voltage, and the second power supply module is charged through the first power supply module.
In one embodiment, the first charging path selection unit includes a first electronic switching subunit and a second electronic switching subunit;
the first electronic switch subunit is electrically connected with the first charging interface, the voltage detection module and the first charging unit respectively, and the second electronic switch subunit is electrically connected with the second charging interface, the voltage detection module and the first charging unit respectively;
the voltage detection module is used for triggering the input end and the output end of the first electronic switch subunit to be connected when the voltage of the first power supply module is smaller than a first preset voltage;
and the voltage detection module is also used for triggering the input end and the output end of the second electronic switch subunit to be connected when the voltage of the second power supply module is smaller than a second preset voltage.
In one embodiment, the charging circuit further comprises a second charging module disposed at the base end;
the second charging module is electrically connected with the first charging interface and the second charging interface respectively;
the second charging module is connected with an external power supply through the first charging interface to charge the second power supply module.
In one embodiment, the charging circuit further comprises a voltage detection module disposed at the base end;
the voltage detection module is electrically connected with the first power supply module, the first charging module, the second power supply module and the second charging module respectively;
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 used for triggering the first charging module to be connected to an external power supply through the first charging interface to charge the first power supply module when the voltage of the first power supply module is smaller than a first preset voltage;
the voltage detection module is further used for triggering the first charging module to charge the second power supply module through the first power supply module when the voltage of the second power supply module is smaller than a second preset voltage, and also triggering the second charging module to be connected to an external power supply through the first charging interface to charge the second power supply module;
the output voltages of the first charging module and the second charging module are equal.
In one embodiment, the second charging module includes a second charging unit and a second charging path selection unit;
the second charging unit is electrically connected with the first charging interface and the second charging path selection unit respectively, and the second charging path selection unit is electrically connected with the second charging interface and the voltage detection module respectively; or, the second charging unit is electrically connected to the second charging interface and the second charging path selection unit, and the second charging path selection unit is electrically connected to the first charging interface and the voltage detection module;
the voltage detection module is used for triggering the second charging path selection unit to be connected with the first charging interface and the second power module when the voltage of the second power module is smaller than a second preset voltage, and an external power source is connected to the first charging interface to charge the second power 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.
The embodiment of the application is favorable for independent replacement and maintenance of each part of the electronic equipment by adopting a split screen design mode, and by providing the charging circuit applied to the electronic equipment, the first power module of the charging circuit, the first charging module and the first charging interface are arranged at the base end of the electronic equipment, the second power module and the second charging interface of the charging circuit are arranged at the screen end of the electronic equipment, an external power source is accessed to charge the first power module through the first charging interface, and the second power module is charged through the first power module, the structure of the screen end can be effectively simplified, the space of the screen end is saved, the screen end can be made thinner and larger, heat is not generated at the screen end during charging, the internal circuit structure of the screen end can be effectively protected, and the service life of the screen end is prolonged.
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 is a schematic structural diagram of an electronic device and a charging circuit provided in a fourth embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device and a charging circuit provided in a fifth embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device and a charging circuit provided in a sixth embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device and a charging circuit provided in a seventh embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device and a charging circuit provided in an eighth embodiment of the present application;
fig. 9 to 12 are schematic structural diagrams of an electronic device and a charging circuit provided in ninth 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 a charging circuit applied to an electronic device 1, 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, a first charging module 22 and a first charging interface 23 disposed on the base end 2, and the charging circuit further includes a second power module 31 and a second charging interface 32 disposed on the screen end 3.
In a specific application, the electronic device may be a display terminal with a multimedia data display function, such as a mobile phone, a tablet computer, a notebook computer, a television, a personal digital assistant, and a multimedia advertisement machine. 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 connection relationship between each component in the electronic device 1 provided in this embodiment is: the first charging module 22 is electrically connected to the first power module 21, the first charging interface 23 and the second charging interface 32, and the second power module 31 is electrically connected to the second charging interface 32.
The working principle of the charging circuit provided by the embodiment is as follows: the first charging module 22 is connected to an external power source through the first charging interface 23 to charge the first power module 21, and the first charging module 22 also charges the second power module 31 through the first power module 21.
In a specific application, the first charging module may be implemented by a charging circuit/chip/device, an analog switch, an electronic switch, or a chip or circuit structure with corresponding functions.
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 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 capable of being electrically connected with the charging module to realize the charging function. The first charging interface may be specifically connected to an external power source through a power adapter or a charging cable (e.g., a USB data cable, a cable with a circular dc plug and a power plug, etc.). 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 correspondingly connected to the first charging interface and has an output voltage equivalent to the operating voltage of the electronic device. The external power source may be direct current or mains alternating current.
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 with the first charging interface; and
and the second short-circuit protection module is electrically connected between the first charging 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.
This embodiment is through adopting 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 providing a charging circuit who is applied to electronic equipment, with charging circuit's first power module, first charging module and the first interface that charges set up in electronic equipment's base end, set up charging circuit's second power module and the second interface that charges in electronic equipment's screen end, insert external power through the first interface that charges and charge for first power module, and charge for second power module through first power module, can effectively simplify the structure of screen end, save the space of screen end, make the screen end accomplish more frivolousization and large-size screen, and do not produce heat at the screen end during charging, can effectively protect the internal circuit structure of screen end, improve the life of screen end.
Example two
As shown in fig. 2, in the present embodiment, the charging circuit in the first embodiment further includes a voltage detection module 24 disposed at the base end 2;
the voltage detection module 24 is electrically connected to the first power supply module 21, the first charging module 22, and the second power supply module 31, 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, and the voltage detection module can be realized through a chip or a circuit structure with corresponding functions.
The working principle of the charging circuit provided by the embodiment is as follows:
the voltage detection module 24 detects the voltage of the first power supply module 21 and the voltage of the second power supply module 31;
when the voltage of the first power module 21 is smaller than the first preset voltage, the voltage detection module 24 triggers the first charging module 22 to access an external power source through the first charging interface 23 to charge the first power module 21;
when the voltage of the second power module 31 is less than the second preset voltage, the voltage detection module 24 triggers the first charging module 22 to charge the second power module 31 through the first power module 21.
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, and the voltage detection module can be realized through a chip or a circuit structure with corresponding functions.
In a specific application, the first preset voltage may be a rated voltage when the first power module is fully charged, or may be any voltage value between [ 90% of rated voltage and 100% of rated voltage "); the second preset voltage may be a rated voltage when the second power module is fully charged, or may be any voltage value between [ 90% rated voltage and 100% rated voltage ]. By setting the preset voltage to any voltage value between [ 90% rated voltage, 100% rated voltage)), it is possible to avoid repeatedly charging the power supply module when the electric quantity of the first power supply module or the second power supply module approaches the full electric quantity, thereby improving the service life of the two power supply modules.
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 a power adapter;
if the first charging interface is not electrically connected with the power adapter, the voltage detection module triggers the first charging module to disconnect the electrical connection between the first charging interface and the first power module.
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, so that the first power module can be prevented from being short-circuited, and short-circuit protection of the first power module is realized.
In the embodiment, a first power module, a first charging interface and a voltage detection module are arranged at a base end of the electronic equipment, a second power module and a second charging interface are arranged at a screen end of the electronic equipment, and the first power module is charged when the voltage of the first power module is smaller than a first preset voltage; when the voltage of the second power supply module is smaller than a second preset voltage, the second power supply module is charged, and charging can be selectively performed according to the residual electric quantity of the screen end and the base end.
EXAMPLE III
As shown in fig. 3, in the present embodiment, the first charging module 22 in the second embodiment includes a first charging unit 221 and a first charging path selecting unit 222;
the first charging unit 221 is electrically connected to the first charging interface 23 and the first charging path selecting unit 222, respectively, and the first charging path selecting unit 222 is electrically connected to the first power module 21, the second charging interface 32, and the voltage detecting module 24, respectively.
In a specific application, the first charging unit may be implemented by a charging circuit/chip/device.
In a specific application, the first charging path selecting unit is configured to switch on a corresponding charging path according to voltage magnitudes of the first power module and the second power module to charge the first power module and/or the second power module, and the charging module may be implemented by an analog switch, an electronic switch, a chip with a corresponding function, or a circuit structure.
The working principle of the charging circuit provided by the embodiment is as follows:
when the voltage of the first power module 21 is smaller than the first preset voltage, the voltage detection module 24 triggers the first charging path selection unit 222 to connect the electrical connection between the first charging interface 23 and the first power module 21, and the first power module 21 is charged by accessing an external power through the first charging interface 23;
when the voltage of the second power module 31 is smaller than the second preset voltage, the voltage detection module 24 triggers the first charging path selection unit 222 to connect the electrical connection between the first power module 21 and the second power module 31, and the second power module 31 is charged through the first power module 21.
In this embodiment, by setting the first charging path selection unit, the corresponding charging path can be switched on for charging according to the remaining electric quantity of the first power supply module and the second power supply module, and the charging device is simple in structure and easy to implement.
Example four
As shown in fig. 4, in the present embodiment, the first charging path selecting unit 222 in the third embodiment includes a first electronic switch subunit and a second electronic switch subunit.
In a specific application, the first electronic switch subunit and the second electronic switch subunit may be implemented by a single-pole single-throw analog switch implemented by a logic circuit, or by electronic switching tubes such as a triode and a field effect tube.
Fig. 4 exemplarily shows that the first electronic switch subunit is a first single-pole single-throw analog switch K1, and the second electronic switch subunit is a second single-pole single-throw analog switch K2.
As shown in fig. 4, in the present embodiment, the connection relationships between the first electronic switch subunit and the second electronic switch subunit and other devices are as follows:
the first electronic switch subunit is electrically connected to the first power module 21, the voltage detection module 24, and the first charging unit 221, and the second electronic switch subunit is electrically connected to the second charging interface 32, the voltage detection module 24, and the first charging unit 221.
Based on the structure shown in fig. 4, the charging circuit provided in this embodiment operates as follows:
when the voltage of the first power module 21 is smaller than a first preset voltage, the voltage detection module 24 triggers the input end and the output end of the first electronic switch subunit to be connected;
when the voltage of the second power module 31 is smaller than the second preset voltage, the voltage detection module 24 triggers the input terminal and the output terminal of the first electronic switch subunit to be connected, and triggers the input terminal and the output terminal of the second electronic switch subunit to be connected.
In the embodiment, the first charging path selection unit is formed by adopting the electronic switch to realize the function of switching the charging path, and the charging path switching device has the advantages of simple structure, easiness in realization and low cost.
EXAMPLE five
As shown in fig. 5, in the present embodiment, the first charging module 22 in the second embodiment includes a first charging unit 221 and a first charging path selecting unit 222;
the first charging unit 221 is electrically connected to the first power module 21 and the first charging path selecting unit 222, respectively, and the first charging path selecting unit 222 is electrically connected to the first charging interface 23, the second charging interface 32, and the voltage detecting module 24, respectively.
In a specific application, the first charging unit may be implemented by a charging circuit/chip/device.
In a specific application, the first charging path selecting unit is configured to switch on a corresponding charging path according to voltage magnitudes of the first power module and the second power module to charge the first power module and/or the second power module, and the charging module may be implemented by an analog switch, an electronic switch, a chip with a corresponding function, or a circuit structure.
The working principle of the charging circuit provided by the embodiment is as follows:
when the voltage of the first power module 21 is smaller than the first preset voltage, the voltage detection module 24 triggers the first charging path selection unit 222 to connect the electrical connection between the first charging interface 23 and the first power module 21, and the first power module 21 is charged by accessing an external power through the first charging interface 23;
when the voltage of the second power module 31 is smaller than the second preset voltage, the voltage detection module 24 triggers the first charging path selection unit 222 to connect the electrical connection between the first power module 21 and the second power module 31, and the second power module 31 is charged through the first power module 21.
In this embodiment, by setting the first charging path selection unit, the corresponding charging path can be switched on for charging according to the remaining electric quantity of the first power supply module and the second power supply module, and the charging device is simple in structure and easy to implement.
EXAMPLE six
As shown in fig. 6, in the present embodiment, the first charging path selecting unit 222 in the fifth embodiment includes a first electronic switch subunit and a second electronic switch subunit.
In a specific application, the first electronic switch subunit and the second electronic switch subunit may be implemented by a single-pole single-throw analog switch implemented by a logic circuit, or by electronic switching tubes such as a triode and a field effect tube.
Fig. 6 exemplarily shows that the first electronic switch subunit is a first single-pole single-throw analog switch K1, and the second electronic switch subunit is a second single-pole single-throw analog switch K2.
As shown in fig. 6, in the present embodiment, the connection relationships between the first electronic switch subunit and the second electronic switch subunit and other devices are as follows:
the first electronic switch subunit is electrically connected to the first charging interface 23, the voltage detection module 24 and the first charging unit 221, and the second electronic switch subunit is electrically connected to the second charging interface 32, the voltage detection module 24 and the first charging unit 221.
Based on the structure shown in fig. 4, the charging circuit provided in this embodiment operates as follows:
when the voltage of the first power module 21 is smaller than a first preset voltage, the voltage detection module 24 triggers the input end and the output end of the first electronic switch subunit to be connected;
when the voltage of the second power module 31 is smaller than the second preset voltage, the voltage detection module 24 triggers the input terminal and the output terminal of the second electronic switch subunit to be connected.
In the embodiment, the first charging path selection unit is formed by adopting the electronic switch to realize the function of switching the charging path, and the charging path switching device has the advantages of simple structure, easiness in realization and low cost.
EXAMPLE seven
As shown in fig. 7, in the present embodiment, the charging circuit in the first embodiment further includes a second charging module 25 disposed at the base end 2;
the second charging module 25 is electrically connected with the first charging interface 23 and the second charging interface 32 respectively;
the second charging module 25 is connected to an external power source through the first charging interface 23 to charge the second power module 32.
In a specific application, the second charging module may be implemented by a charging circuit/chip/device, an analog switch, an electronic switch, or a chip or circuit structure with corresponding functions.
In one embodiment, the charging circuit further comprises:
and the third short-circuit protection module is electrically connected between the second charging module and the second charging interface.
In a specific application, the third short-circuit protection module can be realized by a short-circuit switch, a circuit breaker, an earth leakage protection switch, an earth leakage protector and the like.
In this embodiment, by additionally providing the first charging module, the second power module can be charged through the first charging module and the second charging module, so that the charging rate is increased.
Example eight
As shown in fig. 8, in the present embodiment, the charging circuit in the seventh embodiment further includes a voltage detection module 24 disposed at the base end 2;
the voltage detection module 24 is electrically connected to the first power supply module 21, the first charging module 22, the second power supply module 31, and the second charging module 25, 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, and the voltage detection module can be realized through a chip or a circuit structure with corresponding functions.
The working principle of the charging circuit provided by the embodiment is as follows:
the voltage detection module 24 detects the voltage of the first power supply module 21 and the voltage of the second power supply module 31;
when the voltage of the first power module 21 is smaller than the first preset voltage, the voltage detection module 24 triggers the first charging module 22 to access an external power source through the first charging interface 23 to charge the first power module 21;
when the voltage of the second power module 31 is lower than a second preset voltage, the voltage detection module 24 triggers the first charging module 22 to charge the second power module 32 through the first power module 21, and also triggers the second charging module 25 to access an external power through the first charging interface 21 to charge the second power module 32;
the output voltages of the first charging module 21 and the second charging module 31 are equal. 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 a power adapter;
and if the first charging interface is not electrically connected with the power adapter, the voltage detection module triggers the second charging module to disconnect the electrical connection between the first charging interface and the second power module.
In specific application, when the first charging interface is not electrically connected with the power adapter, the first charging interface is disconnected from the second power module, so that the second power module can be prevented from being short-circuited, and short-circuit protection of the second power module is realized.
In the embodiment, a first power module, a first charging interface, a second charging module and a voltage detection module are arranged at a base end of the electronic equipment, a second power module and a second charging interface are arranged at a screen end of the electronic equipment, and the first power module is charged when the voltage of the first power module is smaller than a first preset voltage; when the voltage of the second power supply module is smaller than a second preset voltage, the second power supply module is charged, and charging can be selectively performed according to the residual electric quantity of the screen end and the base end.
Example nine
As shown in fig. 9 to 12, in the present embodiment, the second charging module 25 in the eighth embodiment includes a second charging unit 251 and a second charging path selecting unit 252.
In a specific application, the second charging unit may be implemented by a charging circuit/chip/device.
In a specific application, the second charging path selecting unit is configured to switch on a corresponding charging path according to the voltage of the first power module and the voltage of the second power module to charge the first power module and/or the second power module, and the charging module may be implemented by an analog switch, an electronic switch, a chip with a corresponding function, or a circuit structure.
As shown in fig. 9, a case is exemplarily shown where the second charging unit 251 is electrically connected to the first charging interface 23 and the second charging path selecting unit 252, respectively, and the second charging path selecting unit 252 is electrically connected to the second charging interface 32 and the voltage detecting module 24, respectively.
As shown in fig. 10, a case is exemplarily shown where the second charging unit 251 is electrically connected to the second charging interface 32 and the second charging path selecting unit 252, respectively, and the second charging path selecting unit 252 is electrically connected to the first charging interface 23 and the voltage detecting module 24, respectively.
Based on the structure shown in fig. 9 or fig. 10, the charging circuit provided in this embodiment operates as follows:
when the voltage of the second power module 32 is lower than the second preset voltage, the voltage detection module 24 triggers the second charging path selection unit 252 to connect the electrical connection between the first charging interface 23 and the second power module 31, and the first charging interface 23 is connected to an external power source to charge the second power module 31.
In a specific application, the second charging path selection unit may be a single-pole single-throw analog switch implemented by a logic circuit, or an electronic switching tube such as a triode, a field-effect tube, or the like.
Fig. 11 and 12 exemplarily show that the second charging path selection unit 252 is a third single-pole single-throw analog switch K3.
Based on the structure shown in fig. 11 or fig. 12, the charging circuit provided in this embodiment operates as follows:
when the voltage of the second power module 32 is lower than the second preset voltage, the voltage detection module 24 triggers the input terminal and the output terminal of the third single-pole single-throw analog switch K3 to be connected, and the first charging interface 23 is connected to an external power source to charge the second power module 31.
In the embodiment, the second charging path selection unit is formed by adopting the electronic switch to realize the function of switching the charging path, and the electronic switch has the advantages of simple structure, easy realization and low cost.
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.
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 (7)
1. A charging circuit is characterized by being applied to electronic equipment, wherein the electronic equipment comprises a base end and a screen end, the base end is arranged separately, the screen end is in communication connection with the base end, the charging circuit comprises a first power module, a first charging module and a first charging interface, the first power module, the first charging module and the first charging interface are arranged at the base end, and the second power module and the second charging interface are arranged at the screen end;
the first charging module is electrically connected with the first power supply module, the first charging interface and the second charging interface respectively, and the second power supply module is electrically connected with the second charging interface;
the first charging module is connected with an external power supply through the first charging interface to charge the first power supply module, and the first charging module also charges the second power supply module through the first power supply module;
the base end is provided with a first wireless access point, the screen end is provided with a second wireless access point, the first wireless access point and the second wireless access point are used as a connecting bridge between a wired network and a wireless network to establish a small wireless local area network, and all wireless communication devices are connected together through the wireless network and are accessed into the Ethernet;
the charging circuit further comprises a second charging module arranged at the base end;
the second charging module is electrically connected with the first charging interface and the second charging interface respectively;
the second charging module is connected with an external power supply through the first charging interface to charge the second power supply module;
the charging circuit further comprises a voltage detection module arranged at the base end;
the voltage detection module is electrically connected with the first power supply module, the first charging module, the second power supply module and the second charging module respectively;
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 used for triggering the first charging module to be connected to an external power supply through the first charging interface to charge the first power supply module when the voltage of the first power supply module is smaller than a first preset voltage;
the voltage detection module is further used for triggering the first charging module to charge the second power supply module through the first power supply module when the voltage of the second power supply module is smaller than a second preset voltage, and also triggering the second charging module to be connected to an external power supply through the first charging interface to charge the second power supply module;
the output voltages of the first charging module and the second charging module are equal.
2. The charging circuit of claim 1, wherein the first charging module comprises a first charging unit and a first charging path selection unit;
the first charging unit is electrically connected with the first charging interface and the first charging path selection unit respectively, and the first charging path selection unit is electrically connected with the first power module, the second charging interface and the voltage detection module respectively;
the voltage detection module is used for triggering the first charging path selection unit to be connected with the first charging interface and the first power supply module when the voltage of the first power supply module is smaller than a first preset voltage, and an external power supply is connected to the first charging interface to charge the first power supply module;
the voltage detection module is further used for triggering the first charging path selection unit to be connected with the first power supply module and the second power supply module when the voltage of the second power supply module is smaller than a second preset voltage, and the second power supply module is charged through the first power supply module.
3. The charging circuit of claim 2, wherein the first charging path selection unit comprises a first electronic switch subunit and a second electronic switch subunit;
the first electronic switch subunit is respectively and electrically connected with the first power supply module, the voltage detection module and the first charging unit, and the second electronic switch subunit is respectively and electrically connected with the second charging interface, the voltage detection module and the first charging unit;
the voltage detection module is used for triggering the input end and the output end of the first electronic switch subunit to be connected when the voltage of the first power supply module is smaller than a first preset voltage;
and the voltage detection module is also used for triggering the input end and the output end of the first electronic switch subunit to be connected and triggering the input end and the output end of the second electronic switch subunit to be connected when the voltage of the second power supply module is smaller than a second preset voltage.
4. The charging circuit of claim 1, wherein the first charging module comprises a first charging unit and a first charging path selection unit;
the first charging unit is electrically connected with the first power module and the first charging path selection unit respectively, and the first charging path selection unit is electrically connected with the first charging interface, the second charging interface and the voltage detection module respectively;
the voltage detection module is used for triggering the first charging path selection unit to be connected with the first charging interface and the first power supply module when the voltage of the first power supply module is smaller than a first preset voltage, and an external power supply is connected to the first charging interface to charge the first power supply module;
the voltage detection module is further used for triggering the first charging path selection unit to be connected with the first power supply module and the second power supply module when the voltage of the second power supply module is smaller than a second preset voltage, and the second power supply module is charged through the first power supply module.
5. The charging circuit of claim 4, wherein the first charging path selection unit comprises a first electronic switch subunit and a second electronic switch subunit;
the first electronic switch subunit is electrically connected with the first charging interface, the voltage detection module and the first charging unit respectively, and the second electronic switch subunit is electrically connected with the second charging interface, the voltage detection module and the first charging unit respectively;
the voltage detection module is used for triggering the input end and the output end of the first electronic switch subunit to be connected when the voltage of the first power supply module is smaller than a first preset voltage;
and the voltage detection module is also used for triggering the input end and the output end of the second electronic switch subunit to be connected when the voltage of the second power supply module is smaller than a second preset voltage.
6. The charging circuit of claim 1, wherein the second charging module comprises a second charging unit and a second charging path selection unit;
the second charging unit is electrically connected with the first charging interface and the second charging path selection unit respectively, and the second charging path selection unit is electrically connected with the second charging interface and the voltage detection module respectively; or, the second charging unit is electrically connected to the second charging interface and the second charging path selection unit, and the second charging path selection unit is electrically connected to the first charging interface and the voltage detection module;
the voltage detection module is used for triggering the second charging path selection unit to be connected with the first charging interface and the second power module when the voltage of the second power module is smaller than a second preset voltage, and an external power source is connected to the first charging interface to charge the second power module.
7. 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 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811326605.4A CN111162571B (en) | 2018-11-08 | 2018-11-08 | Charging circuit and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811326605.4A CN111162571B (en) | 2018-11-08 | 2018-11-08 | Charging circuit and electronic equipment |
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| CN111162571A CN111162571A (en) | 2020-05-15 |
| CN111162571B true CN111162571B (en) | 2022-03-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007272341A (en) * | 2006-03-30 | 2007-10-18 | Toshiba Corp | Arithmetic device, arithmetic device system, and power control method |
| US7554289B2 (en) * | 2006-11-03 | 2009-06-30 | Research In Motion Limited | Apparatus and method for the power management of operatively connected batteries respectively on a handheld electronic device and a holder for the handheld electronic device |
| CN202006737U (en) * | 2010-11-26 | 2011-10-12 | 刘卉 | Vehicle power supply system, power supply, mounting device and power adapting device |
| CN202551159U (en) * | 2012-03-21 | 2012-11-21 | 青岛百灵信息科技有限公司 | Novel multifunctional mobile phone base |
| TWI518486B (en) * | 2013-11-14 | 2016-01-21 | 仁寶電腦工業股份有限公司 | Charger |
| CN205810275U (en) * | 2016-03-09 | 2016-12-14 | 深圳市国华光电研究院 | There is the electronic reader of portable power source function |
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