CN117833395A - Charging circuit and charging system of electronic equipment - Google Patents

Charging circuit and charging system of electronic equipment Download PDF

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Publication number
CN117833395A
CN117833395A CN202311725887.6A CN202311725887A CN117833395A CN 117833395 A CN117833395 A CN 117833395A CN 202311725887 A CN202311725887 A CN 202311725887A CN 117833395 A CN117833395 A CN 117833395A
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CN
China
Prior art keywords
charging
electronic device
control unit
protocol
main control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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CN202311725887.6A
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Chinese (zh)
Inventor
程国雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Xingji Meizu Technology Co ltd
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Wuhan Xingji Meizu Technology Co ltd
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Filing date
Publication date
Application filed by Wuhan Xingji Meizu Technology Co ltd filed Critical Wuhan Xingji Meizu Technology Co ltd
Priority to CN202311725887.6A priority Critical patent/CN117833395A/en
Publication of CN117833395A publication Critical patent/CN117833395A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • 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
    • 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
    • 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
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The disclosure relates to the field of charging technologies, and in particular, to a charging circuit and a charging system for an electronic device. Wherein, the charging circuit of electronic equipment includes: the main control unit comprises a storage module, the storage module comprises system firmware, the system firmware integrates various charging protocols, and the main control unit updates the system firmware to upgrade the charging protocols; the charging interface is used for being connected with external equipment and is electrically connected with the main control unit. According to the technical scheme, the charging chip is not required to be limited, the problem that the charging chip is frequently upgraded because the charging chip is required to be frequently upgraded due to the limitation of the charging chip and the manufacturer is puzzled by the frequently upgraded charging chip is avoided.

Description

Charging circuit and charging system of electronic equipment
Technical Field
The disclosure relates to the field of charging technologies, and in particular, to a charging circuit and a charging system for an electronic device.
Background
With the popularity of electronic devices, such as mobile phones, the mobile phone battery capacity is increasing, and the demand for fast charging in the market is very strong. However, because of the large cell phone brands, special charging protocols such as QC, PD, UFCS and the like are developed, and a single cell phone charger or a mobile power supply cannot be compatible with other fast charging cell phones. Therefore, the more the mobile phone brands used by the users, the more the mobile phone chargers and the mobile power supplies are correspondingly, and the use is very inconvenient.
In order to solve the problem that the charging equipment (a charger, a mobile power supply and the like) cannot support identification and analysis of various different quick charging protocols at the same time, so that users are inconvenient to use. In the related art, a plurality of charging protocols are integrated on a charging chip (a charging management chip) to be compatible with different types of quick-charging adapters and quick-charging devices. The charging protocol is already fixed on a charging chip provided by a manufacturer, and is not allowed to be modified by others. However, the charging protocol is continuously updated, and in order to be compatible with more charging protocols, manufacturers need to frequently update the charging chip to support more charging protocols. Therefore, based on the limitation of the charging chip, the charging chip needs to be frequently upgraded, and the frequent upgrading of the charging chip brings trouble to manufacturers.
Disclosure of Invention
In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a charging circuit and a charging system of an electronic device, which do not need to be limited by a charging chip, and avoid the problem that the charging chip needs to be frequently upgraded due to the limitation of the charging chip, which causes trouble to manufacturers.
In a first aspect, the present disclosure provides a charging circuit of an electronic device, comprising:
the main control unit comprises a storage module, the storage module comprises system firmware, the system firmware integrates various charging protocols, and the main control unit updates the system firmware to upgrade the charging protocols;
the charging interface is used for being connected with external equipment, and the charging interface is electrically connected with the main control unit.
In some embodiments, the system firmware is upgraded to upgrade the charging protocol by an OTA upgrade that includes any of receiving a message to upgrade the operating system and actively acquiring the upgraded operating system.
In some embodiments, the system firmware upgrades the charging protocol by swiping through a machine.
In some embodiments, the upgrading the charging protocol includes updating the charging protocol and writing a new charging protocol to any of the system firmware.
In some embodiments, the main control unit is configured to obtain a charging protocol of the external device, and match the corresponding charging protocol to perform protocol communication with the external device.
In some embodiments, the master control unit further comprises a charging protocol identification module;
the first end of the charging protocol identification module is connected with the charging interface, and the second end of the charging protocol identification module is electrically connected with the storage module.
In some embodiments, the charging circuit of the electronic device further comprises:
a power management chip and a power module;
the first end of the power management chip is connected with the voltage pin of the charging interface, the second end of the power management chip is connected with the first end of the power module, the third end of the power management chip is connected with the main control unit, and the second end of the power module is grounded.
In some embodiments, the external device is a Host device, and the Host device charges the power module through the power management chip;
the external Device is a Device, and the power module supplies power to the Device through the power management chip.
In a second aspect, the present disclosure further provides a charging system of an electronic device, including a charging circuit of the electronic device as described in the first aspect.
In some embodiments, the charging system of the electronic device further comprises:
and the external equipment is electrically connected with the charging interface through the data line.
The charging circuit of the electronic device provided by the embodiment of the disclosure comprises: the main control unit comprises a storage module, the storage module comprises system firmware, the system firmware integrates various charging protocols, and the main control unit updates the system firmware to upgrade the charging protocols; the charging interface is used for being connected with external equipment and is electrically connected with the main control unit. Therefore, by integrating various charging protocols into the system firmware, the system firmware can be updated by the main control unit to upgrade the charging protocols without being limited by the charging chip, so that the problem that the charging chip needs to be frequently upgraded because the charging protocol is fixed on the charging chip and the manufacturer is bothered by frequently upgrading the charging chip due to the limitation of the charging chip is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a charging circuit of an electronic device according to an embodiment of the disclosure;
fig. 2 is a schematic structural diagram of a charging circuit of another electronic device according to an embodiment of the disclosure;
fig. 3 is a schematic structural diagram of a charging circuit of another electronic device according to an embodiment of the disclosure;
fig. 4 is a schematic structural diagram of a charging circuit of another electronic device according to an embodiment of the disclosure;
fig. 5 is a schematic structural diagram of a charging system of an electronic device according to an embodiment of the present disclosure.
10, a charging circuit of the electronic equipment; 010. a charging system of the electronic device; 11. a main control unit; 12. a charging interface; 13. a storage module; 013. system firmware; 14. a charging protocol identification module; 15. a power management chip; 16. a power module; 17. an external equipment identification module; 18. an external device; 19. a data line; 20. a device interface; a1, a first end of a power management chip; a2, a second end of the power management chip; a3, a third end of the power management chip; b1, a first end of the power module; b2, a second end of the power module; c1, a voltage pin; c2, detecting pins; d1, a first end of an external equipment identification module; d2, a second end of the external equipment identification module; m1, a first end of a charging protocol identification module; and M2, a second end of the charging protocol identification module.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.
In order to solve the problem that the charging equipment (a charger, a mobile power supply and the like) cannot support the identification and analysis of various different quick charging protocols at the same time, so that the user is inconvenient to use. In the related art, a plurality of charging protocols are integrated on a charging chip (a charging management chip) to be compatible with different types of quick-charging adapters and quick-charging devices. The charging protocol is already fixed on a charging chip provided by a manufacturer, and is not allowed to be modified by others. However, the charging protocol is continuously updated, and in order to be compatible with more charging protocols, manufacturers need to frequently update the charging chip to support more charging protocols. Therefore, based on the limitation of the charging chip, the charging chip needs to be frequently upgraded, and the frequent upgrading of the charging chip brings trouble to manufacturers.
Aiming at the technical problems in the related art, the embodiment of the disclosure provides a charging circuit of electronic equipment. According to the charging circuit of the electronic equipment, various charging protocols are integrated in the system firmware, the system firmware can be updated through the main control unit to update the charging protocols, the limitation of the charging chip is not needed, the problem that the charging protocols are fixed on the charging chip, the charging chip is required to be frequently updated due to the limitation of the charging chip, and the problem that manufacturers are puzzled by frequently updating the charging chip is avoided.
The charging circuit of the electronic device provided by the embodiment of the present disclosure is exemplarily described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a charging circuit of an electronic device according to an embodiment of the disclosure. As shown in fig. 1, a charging circuit 10 of an electronic device includes: the main control unit 11, the main control unit 11 comprises a storage module 13, the storage module 13 comprises a system firmware 013, the system firmware 013 integrates various charging protocols, and the main control unit 11 updates the system firmware 013 to upgrade the charging protocols; the charging interface 12, the charging interface 12 is used for accessing external equipment, and the charging interface 12 is electrically connected with the main control unit 11.
The system firmware 013 refers to a device driver stored in the electronic device, through which an operating system can implement operation actions of a specific machine according to a standard device driver. The system firmware 013 can be applied to a very wide range of electronic products, such as remote controllers, mobile phones, computers, and the like.
Thus, a plurality of charging protocols are integrated in the system firmware 013, and the main control unit 11 can update the charging protocols integrated in the system firmware 013 by updating the charging protocols integrated in the system firmware 013 when updating the system firmware 013.
In the related art, the charging protocol is integrated on the charging chip, and the charging chip needs to be frequently upgraded due to the limitation of the charging chip, which brings trouble to manufacturers. Compared with the related art, the embodiment of the disclosure integrates various charging protocols in the system firmware 013, and the system firmware 013 can be updated by the main control unit 11 to upgrade the charging protocols without being limited by the charging chip, so that the problem that the charging chip needs to be frequently upgraded because the charging chip is required to be frequently upgraded due to the limitation of the charging chip and the manufacturer is puzzled by frequently upgrading the charging chip is avoided.
The external device can be, for example, a charger or a charger. When the external device is connected to the charging interface 12, the main control unit 11 electrically connected to the charging interface 12 can obtain a charging protocol of the external device, and the main control unit 11 performs protocol communication with the external device according to the charging protocol matching and corresponding to the charging protocol integrated in the system firmware 013, so that the external device such as a charger or a charger can supply power and charge for the electronic device.
The charging interface 12 may be specifically configured as a Type-C interface, which is not specifically limited in the embodiments of the present disclosure. The charging interface 12 may be electrically connected to the main control unit 11 through two differential signal lines (DP/DM) as shown in fig. 1, so that the main control unit 11 performs protocol communication with an external device such as a charger or a charger through the DP/DM.
The charging circuit of the electronic device provided by the embodiment of the disclosure comprises: the main control unit 11, the main control unit 11 comprises a storage module 13, the storage module 13 comprises a system firmware 013, the system firmware 013 integrates various charging protocols, and the main control unit 11 updates the system firmware 013 to upgrade the charging protocols; the charging interface 12, the charging interface 12 is used for accessing external equipment, and the charging interface 12 is electrically connected with the main control unit 11. Therefore, by integrating various charging protocols into the system firmware 013, the main control unit 11 can update the system firmware 013 to upgrade the charging protocols without being limited by a charging chip, so that the problem that the charging chip needs to be frequently upgraded because the charging protocol is fixed on the charging chip and the manufacturer is bothered by frequently upgrading the charging chip due to the limitation of the charging chip is avoided.
In some embodiments, referring to fig. 1, system firmware 013 upgrades to upgrade the charging protocol by an OTA upgrade including any of receiving a message to upgrade the operating system and actively acquiring the upgrade operating system.
Among them, the space downloading Technology (OTA) upgrade is a standard software upgrade method provided by the current electronic device, such as the smart phone operating system iOS/Android, etc. The OTA upgrade technology is powerful and can upgrade the system without loss, mainly by automatically downloading an OTA upgrade package through a network to automatically upgrade a charging protocol in, for example, system firmware 013, thereby writing in a new charging protocol.
In addition, OTA upgrading is a very common electronic equipment operating system upgrading technology, and has OTA upgrading functions no matter in android mobile phones or iPhone mobile phones, and through the functions, whether a new system of an equipment manufacturer can be upgraded or not can be detected online.
Specifically, the OTA upgrade can upgrade the operating system when receiving the message for upgrading the operating system, so as to update the charging protocol in the operating system; OTA upgrades also can obtain the upgrade operating system actively, upgrade the operating system, thus upgrade the charging protocol in the operating system.
For example, manufacturers often provide new iOS system versions for electronic devices such as iPhone/iPad devices to push messages to upgrade the operating system; or, the user can enter a setting page of the electronic device, such as the iPhone/iPad device, detect whether an available system update is available to actively acquire the upgrade operating system, and if the available system update is available, the user can directly click on online upgrade, so that the iPhone/iPad device can be upgraded to the latest iOS system.
In some embodiments, with continued reference to fig. 1, system firmware 013 upgrades the charging protocol by swiping through the machine.
Specifically, the brushing refers to a process of replacing or upgrading the system firmware 013 of electronic devices such as mobile phones and tablet computers. The original system of the electronic equipment can be replaced by other customized systems or the latest version of systems through the machine brushing. Thus, the system firmware 013 can be updated by the swipe to upgrade the charging protocol.
The machine is divided into a line brush and a card brush. The line swiping refers to the use of a data line as a swiping tool for swiping, and the card swiping refers to the copying of firmware or an upgrade package into an SD card of an electronic device such as a mobile phone for swiping upgrade operation.
Compared with the updating of the mobile phone, the OTA updating can be directly finished on line in the electronic equipment such as the mobile phone, only the mobile network or the Wifi network is needed, the updating does not need backup data, and the mobile phone can be automatically restarted after the updating is finished.
In some embodiments, upgrading the charging protocol includes updating the charging protocol and writing the new charging protocol to any of the system firmware.
Specifically, the charging protocol in the system firmware 013 in fig. 1 may be updated by, for example and without limitation, an OTA upgrade technique, or a new charging protocol may be written into the system firmware 013 by, for example and without limitation, a swipe technique, to implement the upgrade charging protocol. Therefore, the charging circuit of the electronic equipment provided by the embodiment of the disclosure can realize free definition of a charging protocol.
In some embodiments, fig. 2 is a schematic structural diagram of a charging circuit of another electronic device according to an embodiment of the disclosure. As shown in fig. 2, the main control unit 11 further includes a charging protocol identification module 14; the first end M1 of the charging protocol identification module 14 is connected to the charging interface 12, and the second end M2 of the charging protocol identification module 14 is electrically connected to the storage module 13.
Specifically, the charging protocol identification module 14 is electrically connected to the charging interface 12 and the storage module 13, and when an external device such as a charger or a charger is connected to the charging interface 12, the charging protocol identification module 14 can obtain and identify a charging protocol of the external device, and further match a corresponding charging protocol in the system firmware 013 to perform protocol communication with the external device, so as to realize that the external device such as the charger or the charger charges the electronic device.
In some embodiments, fig. 3 is a schematic structural diagram of a charging circuit of another electronic device according to an embodiment of the disclosure. As shown in fig. 3, the charging circuit 10 of the electronic device further includes: a power management chip 15 and a power module 16; the first end A1 of the power management chip 15 is connected with the voltage pin C1 of the charging interface 12, the second end A2 of the power management chip 15 is connected with the first end B1 of the power module 16, the third end A3 of the power management chip 15 is connected with the main control unit 11, and the second end B2 of the power module 16 is grounded.
Specifically, when the external device is a charger, a charger or the like, the external device connected through the charging interface 12 can supply power to the main control unit 11 through the power management chip 15 (corresponding to the charging chip), and simultaneously charge the power module 16 such as a battery.
When the external device is a usb disk, a hard disk, an earphone, etc., the power module 16 supplies power to the usb disk, the hard disk, the earphone, etc. connected to the charging interface 12 through the power management chip 15.
The charger, the charger bank and the like are Host equipment, and the USB flash disk, the hard disk, the earphone and the like are Device equipment. Therefore, in the charging circuit provided by the embodiment of the disclosure, the external device is connected to the charging interface 12, and when the external device is a Host device, the Host device can charge the power module 16 through the power management chip 15; when the external Device is a Device, the power module 16 supplies power to the Device through the power management chip 15.
In combination with the foregoing, the charging circuit of the electronic device provided in the embodiment of the disclosure may implement a freely defined charging protocol, and the power management chip 15 (equivalent to a charging chip) has a wider selection range, and does not need to limit whether the charging chip supports the fast charging protocol required by the external device.
In some embodiments, fig. 4 is a schematic structural diagram of a charging circuit of another electronic device according to an embodiment of the disclosure. As shown in fig. 4, the charging circuit 10 of the electronic device further includes: the external device identification module 17, the first end D1 of the external device identification module 17 is connected with the main control unit 11, and the second end D2 of the external device identification module 17 is connected with the detection pin C2 of the charging interface 12.
Specifically, the external device is connected to the charging interface 12, and when the external device is a Host device, the external device identification module 17 may obtain a first detection signal, for example, a high level signal, output by the detection pin C2; when the external Device is a Device, the external Device identification module 17 may obtain a second detection signal, such as a low level signal, output by the detection pin C2.
Therefore, when the external device identification module 17 obtains the first detection signal, the external device identification module 17 may transmit the first detection signal to the main control unit 11, and the main control unit 11 may determine that the external device is a Host device according to the first detection signal, and then may identify a charging protocol of the external device through the charging protocol identification module 14, so as to match a corresponding charging protocol in the system firmware 013 to perform protocol communication with the external device, thereby enabling the Host device to supply power to the main control unit 11 through the power management chip 15, and simultaneously charge the power module 16, such as a battery.
When the external Device identification module 17 obtains the second detection signal, the external Device identification module 17 may transmit the second detection signal to the main control unit 11, and the main control unit 11 may determine that the external Device is a Device according to the second detection signal, and then the control unit controls the power management chip 15 to reversely output, so as to realize that the power module 16 supplies power to the Device through the power management chip 15.
On the basis of the embodiment, the disclosure further provides a charging system of the electronic equipment. Fig. 5 is a schematic structural diagram of a charging system of an electronic device according to an embodiment of the present disclosure. On the basis of fig. 1-4, as shown in fig. 5, the charging system 010 of the electronic device includes the charging circuit 10 of the electronic device according to the above-described embodiment, and thus has the same or similar advantageous effects, which are not described herein.
In some embodiments, as shown in fig. 5, the charging system 010 of the electronic device further comprises: the data line 19, the external device 18 is connected with the charging interface 12 through the data line 19.
Specifically, the external device 18 is provided with a device interface 20, and the device interface 20 and the charging interface 12 are electrically connected through a data line 19. Thereby, the Host device can be connected to the charging interface 12, and the Host device supplies power to the main control unit 11 through the power management chip 15 and charges the power module 16 such as a battery; and, the Device can be connected to the charging interface 12, and the power module 16 supplies power to the Device through the power management chip 15.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The above is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A charging circuit for an electronic device, comprising:
the main control unit comprises a storage module, the storage module comprises system firmware, the system firmware integrates various charging protocols, and the main control unit updates the system firmware to upgrade the charging protocols;
the charging interface is used for being connected with external equipment, and the charging interface is electrically connected with the main control unit.
2. The charging circuit of the electronic device of claim 1, wherein the system firmware is upgraded to upgrade the charging protocol by an OTA upgrade comprising any of receiving a message to upgrade an operating system and actively acquiring an upgrade operating system.
3. The charging circuit of the electronic device of claim 1, wherein the system firmware upgrades the charging protocol by swiping through a machine.
4. The charging circuit of the electronic device of claim 1, wherein the upgrading the charging protocol includes updating the charging protocol and writing a new charging protocol to any of the system firmware.
5. The charging circuit of the electronic device according to claim 1, wherein the main control unit is configured to obtain a charging protocol of the external device, and match the corresponding charging protocol to perform protocol communication with the external device.
6. The charging circuit of the electronic device of claim 1, wherein the master control unit further comprises a charging protocol identification module;
the first end of the charging protocol identification module is connected with the charging interface, and the second end of the charging protocol identification module is electrically connected with the storage module.
7. The charging circuit of an electronic device as recited in claim 1, further comprising:
a power management chip and a power module;
the first end of the power management chip is connected with the voltage pin of the charging interface, the second end of the power management chip is connected with the first end of the power module, the third end of the power management chip is connected with the main control unit, and the second end of the power module is grounded.
8. The charging circuit of the electronic device according to claim 7, wherein the external device is a Host device that charges the power supply module through the power supply management chip;
the external Device is a Device, and the power module supplies power to the Device through the power management chip.
9. A charging system for an electronic device, characterized by comprising a charging circuit for an electronic device according to any of claims 1-8.
10. The charging system of an electronic device according to claim 9, further comprising:
and the external equipment is electrically connected with the charging interface through the data line.
CN202311725887.6A 2023-12-14 2023-12-14 Charging circuit and charging system of electronic equipment Pending CN117833395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311725887.6A CN117833395A (en) 2023-12-14 2023-12-14 Charging circuit and charging system of electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311725887.6A CN117833395A (en) 2023-12-14 2023-12-14 Charging circuit and charging system of electronic equipment

Publications (1)

Publication Number Publication Date
CN117833395A true CN117833395A (en) 2024-04-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311725887.6A Pending CN117833395A (en) 2023-12-14 2023-12-14 Charging circuit and charging system of electronic equipment

Country Status (1)

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