CN220066954U - Charging circuit and electronic equipment - Google Patents
Charging circuit and electronic equipment Download PDFInfo
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- CN220066954U CN220066954U CN202321638352.0U CN202321638352U CN220066954U CN 220066954 U CN220066954 U CN 220066954U CN 202321638352 U CN202321638352 U CN 202321638352U CN 220066954 U CN220066954 U CN 220066954U
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- 238000006243 chemical reaction Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The present disclosure relates to the field of electronic technology, and provides a charging circuit and electronic equipment, the charging circuit includes: a charging interface; the switching circuit is connected with the charging interface; the first charging circuit is connected with the switch circuit and is used for being connected with the battery pack module; the second charging circuit is connected with the switch circuit and is used for being connected with the battery pack module; the switch circuit is used for selectively conducting the charging interface and the first charging circuit so as to charge the double-cell battery when the cell type of the battery pack module is the double-cell battery, or conducting the charging interface and the second charging circuit so as to charge the single-cell battery when the cell type of the battery pack module is the single-cell battery. The charging circuit can charge the battery pack module under the condition that the battery cell type is single battery cell or double battery cell, so that the applicability of the charging circuit is improved.
Description
Technical Field
The disclosure relates to the field of electronic technology, and in particular, to a charging circuit and an electronic device.
Background
With the popularization of electronic devices such as mobile phones, tablet computers and the like, people have increasingly separated from charging technologies for providing basic power support for the electronic devices in daily life.
In the related art, when charging different types of electronic devices (for example, different types of mobile phones), different charging circuits need to be designed for the different electronic devices, and the existing charging circuits have low applicability.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a charging circuit and an electronic device.
According to a first aspect of embodiments of the present disclosure, there is provided a charging circuit comprising:
a charging interface;
the switch circuit is connected with the charging interface;
the first charging circuit is connected with the switch circuit and is used for being connected with the battery pack module;
the second charging circuit is connected with the switch circuit and is used for being connected with the battery pack module;
the switch circuit is used for selectively conducting the charging interface and the first charging circuit so as to charge the double-cell battery when the cell type of the battery pack module is the double-cell battery, or conducting the charging interface and the second charging circuit so as to charge the single-cell battery when the cell type of the battery pack module is the single-cell battery.
Optionally, the charging circuit further comprises a controller and a detection terminal,
the detection end is used for being connected with the battery pack module to detect the type of the battery cell of the battery pack module;
the controller is connected with the detection end and the switch circuit.
Optionally, the first charging circuit includes a voltage conversion circuit and a connector;
the connector is connected with the voltage conversion circuit and is used for being connected with the battery pack module;
the voltage conversion circuit is connected with the switch circuit and is used for boosting the electric energy transmitted by the charging interface so as to charge the battery pack module through the connector.
Optionally, the second charging circuit includes the connector;
the connector is connected with the switch circuit and is used for being connected with the battery pack module.
Optionally, the charging circuit further includes: a power management chip;
one end of the power management chip is connected with the charging interface, and the other end of the power management chip is connected with the switch circuit.
Optionally, the power management chip, the switching circuit, the first charging circuit and the second charging circuit are used for forming a discharging circuit of the battery pack module.
Optionally, the charging circuit further includes: a charge pump;
one end of the charge pump is connected with the charging interface, the other end of the charge pump is connected with the connector, and the connector is used for being connected with the battery pack module.
Optionally, the charge pump includes a first charge pump and a second charge pump, and the connector includes a first connector and a second connector;
the first end of the first charge pump is connected with the charging interface, the second end of the first charge pump is connected with the first end of the first connector, the second end of the first connector is used for being connected with the battery pack module, the third end of the first connector is connected with the voltage conversion circuit, and the fourth end of the first connector is connected with the switch circuit;
the first end of the second charge pump is connected with the charging interface, the second end of the second charge pump is connected with the first end of the second connector, and the second end of the second connector is used for being connected with the battery pack module.
Optionally, the charge pump comprises a first working mode and a second working mode, the voltage ratio of the charge pump in the first working mode is different from that in the second working mode, and the charge pump is connected with the controller.
According to a second aspect of embodiments of the present disclosure, there is provided an electronic device comprising the charging circuit provided in any one of the first aspects of the present disclosure.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
the charging circuit includes: a charging interface; the switching circuit is connected with the charging interface; the first charging circuit is connected with the switch circuit and is used for being connected with the battery pack module; the second charging circuit is connected with the switch circuit and is used for being connected with the battery pack module; the switch circuit is used for selectively conducting the charging interface and the first charging circuit so as to charge the double-cell battery when the cell type of the battery pack module is the double-cell battery, or conducting the charging interface and the second charging circuit so as to charge the single-cell battery when the cell type of the battery pack module is the single-cell battery. The charging interface and the first charging circuit are selectively conducted through the switch circuit so as to charge the double-cell battery under the condition that the cell type of the battery pack module is the double-cell battery, or the charging interface and the second charging circuit are conducted so as to charge the single-cell battery under the condition that the cell type of the battery pack module is the single-cell battery, so that the charging circuit can charge the battery pack module under the condition that the cell type is the single-cell battery or the double-cell battery, and the applicability of the charging circuit is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
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.
Fig. 1 is a block diagram of a charging circuit, according to an example embodiment.
Fig. 2 is a block diagram of another charging circuit shown according to an exemplary embodiment.
Fig. 3 is a block diagram of another charging circuit shown according to an exemplary embodiment.
Description of the reference numerals
10-a charging interface; a 20-switch circuit; 31-a first charging circuit; 32-a second charging circuit; a 33-voltage conversion circuit; a 34-connector; 341-a first connector; 342-a second connector; 40-a power management chip; 50-a charge pump; 51-a first charge pump; 52-a second charge pump; 60-battery module.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
With the popularization of electronic devices such as mobile phones, tablet computers and the like, people have increasingly separated from charging technologies for providing basic power support for the electronic devices in daily life.
In the related art, when charging different types of electronic devices (for example, different types of mobile phones), different charging circuits need to be designed for the different electronic devices, and the applicability of the existing charging circuits is not high.
In order to solve the technical problem, in the embodiment of the disclosure, the switch circuit is configured to selectively conduct the charging interface and the first charging circuit so as to charge the dual-cell battery when the cell type of the battery module is the dual-cell battery, or to conduct the charging interface and the second charging circuit so as to charge the single-cell battery when the cell type of the battery module is the single-cell battery, so that the charging circuit can charge the battery module when the cell type is the single-cell battery or the dual-cell battery, thereby improving the applicability of the charging circuit.
Fig. 1 is a block diagram of a charging circuit, according to an example embodiment. As shown in fig. 1, a charging circuit includes a charging interface 10, a switching circuit 20, a first charging circuit 31, and a second charging circuit 32. Wherein,
a charging interface 10;
the switching circuit 20, the switching circuit 20 is connected with the charging interface 10;
a first charging circuit 31, the first charging circuit 31 being connected with the switch circuit 20, and the first charging circuit 31 being for connection with the battery module 60;
the second charging circuit 32, the second charging circuit 32 is connected with the switch circuit 20, and the second charging circuit 32 is used for being connected with the battery pack module 60;
the switch circuit 20 is used for selectively conducting the charging interface 10 and the first charging circuit 31 to be able to charge the dual-cell battery in the case that the cell type of the battery module 60 is the dual-cell battery, or conducting the charging interface 10 and the second charging circuit 32 to be able to charge the single-cell battery in the case that the cell type of the battery module 60 is the single-cell battery.
The charging interface 10 may be used for connection with a power adapter for inputting electrical energy. The charging interface 10 may be, but is not limited to, a Micro USB (Universal Serial Bus ) interface, a USB Type-C interface, a Lightning interface, etc.
The switching circuit 20 may be an alternative switching chip, for example, aiP LVC1G3157 chip, 74HC4053 chip, CD4051 chip, or the like. The switch circuit 20 is connected to the first charging circuit 31 and the second charging circuit 32, alternatively turns on, and turns on the charging interface 10 and the first charging circuit 31, or turns on the charging interface 10 and the second charging circuit 32.
The battery module 60 includes one of a dual cell battery and a single cell battery. When the switch circuit 20 conducts the charging interface 10 and the first charging circuit 31, the electric energy of the charging interface 10 charges the double-cell battery through the switch circuit 20 and the first charging circuit 31 in sequence; when the switch circuit 20 turns on the charging interface 10 and the second charging circuit 32, the electric energy of the charging interface 10 charges the single-cell battery through the switch circuit 20 and the second charging circuit 32 in sequence.
By setting the switch circuit 20 to selectively conduct the charging interface 10 and the first charging circuit 31 so as to charge the dual-cell battery in the case that the cell type of the battery pack module 60 is the dual-cell battery, or conduct the charging interface 10 and the second charging circuit 32 so as to charge the single-cell battery in the case that the cell type of the battery pack module 60 is the single-cell battery, the charging circuit can charge the battery pack module 60 in the case that the cell type is the single-cell battery or the dual-cell battery, thereby improving the applicability of the charging circuit, having universality in structure, reducing the condition that debugging parameters are removed one by one for different application scenes, reducing workload, and improving efficiency and effectiveness.
In one possible embodiment, the charging circuit further comprises a controller and a detection terminal,
the detection end is used for being connected with the battery pack module 60 to detect the type of the battery cell of the battery pack module 60;
the controller is connected with the detection end and the switch circuit 20.
The dual cell battery may be a series dual cell battery or a parallel dual cell battery. Because the voltages at the two ends of the single-cell battery and the serial double-cell battery are different, the type of the battery can be judged by the voltages at the two ends of the battery. The detection terminal is connected with the battery module 60, and detects the type of the battery cell by measuring the voltage of the battery module 60.
In other embodiments, the detection end may also be connected to a BMS (Battery Management System ) inside the battery module 60, and directly obtain the cell type of the battery module 60 through the BMS.
The controller obtains the battery cell type of the battery pack module 60 through the detection end, controls the switch circuit 20 according to the battery cell type, controls the switch circuit 20 to conduct the charging interface 10 and the first charging circuit 31 to charge the double-battery cell when the battery cell type is the double-battery cell, and controls the switch circuit 20 to conduct the charging interface 10 and the second charging circuit 32 to charge the single-battery cell when the battery cell type is the single-battery cell.
The controller may be a CPU (Central Processing Unit ) internal to the electronic device.
By arranging the controller and the detection end, the switch circuit 20 can be controlled to be selectively turned on accurately according to the cell type of the battery pack module 60, so that the charging circuit can charge the battery pack module 60 under the condition that the cell type is single-cell battery or double-cell battery, and the applicability of the charging circuit is improved.
In one possible embodiment, as shown in fig. 2, the first charging circuit 31 includes a voltage conversion circuit 33 and a connector 34;
the connector 34 is connected with the voltage conversion circuit 33, and the connector 34 is used for connection with the battery module 60;
the voltage conversion circuit 33 is connected to the switching circuit 20, and the voltage conversion circuit 33 is used for boosting the electric energy transmitted by the charging interface 10 to charge the battery module 60 through the connector 34.
The voltage conversion circuit 33 may be a 1:2 boost circuit, and the electric energy of the charging interface 10 sequentially passes through the switch circuit 20, and then charges the battery module 60 through the connector 34 after being boosted by the voltage conversion circuit 33.
In one possible embodiment, the second charging circuit 32 includes a connector 34;
the connector 34 is connected with the switching circuit 20, and the connector 34 is used for connection with the battery module 60.
The power of the charging interface 10 sequentially passes through the switching circuit 20 and the connector 34 to charge the battery module 60.
In one possible implementation, referring to fig. 3, the charging circuit further includes: a power management chip 40;
one end of the power management chip 40 is connected to the charging interface 10, and the other end of the power management chip 40 is connected to the switching circuit 20.
The electric energy of the charging interface 10 sequentially passes through the power management chip 40, the switch circuit 20, the first charging circuit 31/the second charging circuit 32 to charge the battery module 60.
In one possible embodiment, the power management chip 40, the switching circuit 20, the first charging circuit 31, and the second charging circuit 32 are used to constitute a discharging circuit of the battery module 60.
In the case where the cell type of the battery module 60 is a dual cell battery, the first charging circuit 31, the switching circuit 20, and the power management chip 40 constitute a discharging circuit of the battery module 60. The electric energy of the double-cell battery sequentially passes through the connector 34, the voltage conversion circuit 33, the switch circuit 20 and the power management chip 40 to supply power to the system. Since the current flow of the discharge circuit is opposite to the current flow of the charge circuit, the voltage conversion circuit 33 is a step-down circuit in which the step-down ratio and the step-up ratio are opposite to each other during the discharge.
In the case where the cell type of the battery module 60 is a single cell battery, the second charging circuit 32, the switching circuit 20, and the power management chip 40 constitute a discharging circuit of the battery module 60. The power of the single-cell battery sequentially passes through the connector 34, the switch circuit 20 and the power management chip 40 to supply power to the system.
The charging interface 10, the power management chip 40, the switching circuit 20, the first charging circuit 31 and the second charging circuit 32 are used for forming a common charging circuit, and in order to further improve the charging efficiency, the charging circuit may further include a fast charging circuit.
In one possible implementation, referring to fig. 3, the charging circuit further includes: a charge pump 50;
one end of the charge pump 50 is connected to the charging interface 10, the other end of the charge pump 50 is connected to the connector 34, and the connector 34 is used to connect to the battery module 60.
The charging interface 10, the charge pump 50 and the connector 34 may constitute a fast charging circuit. The electrical energy of the charging interface 10 in turn passes through the charge pump 50 and the connector 34 to rapidly charge the battery module 60.
In one possible embodiment, the charge pump 50 includes a first charge pump 51 and a second charge pump 52, and the connector 34 includes a first connector 341 and a second connector 342;
a first end of the first charge pump 51 is connected to the charging interface 10, a second end of the first charge pump 51 is connected to a first end of the first connector 341, a second end of the first connector 341 is used to connect to the battery module 60, a third end of the first connector 341 is connected to the voltage conversion circuit 33, and a fourth end of the first connector 341 is connected to the switching circuit 20;
a first end of the second charge pump 52 is connected to the charging interface 10, a second end of the second charge pump 52 is connected to a first end of the second connector 342, and a second end of the second connector 342 is adapted to be connected to the battery module 60.
The high current is decomposed into two paths of low current for charging, so that the impedance of a charging path is reduced, and the overall conversion efficiency is improved. The ultra-efficient charge pump 50 charging chips are respectively carried on the two charging paths to form a double charge pump 50 parallel architecture.
The first connector 341 is used for a common charging circuit, a discharging circuit and a quick charging circuit, and the first connector 341 is multiplexed for a plurality of times, so that the cost is saved.
In one possible embodiment, the charge pump 50 includes a first operation mode and a second operation mode, the charge pump 50 being connected to the controller in which the ratio of voltages of the charge pump 50 is different between the first operation mode and the second operation mode.
The charge pump 50 may be a charge pump 50 that can perform 4:1 and 2:1 mode switching.
The voltage change ratio of the first working mode can be 2:1, and the voltage change ratio of the second working mode can be 4:1.
The charge pump 50 is connected to a controller that controls the mode of operation of the charge pump 50 based on the type of cell.
Specifically, when the battery cell type is a dual battery cell, the controller controls the charge pump 50 to operate in the first operation mode, and when the battery cell type is a single battery cell, the controller controls the charge pump 50 to operate in the second operation mode.
By setting different working modes of the charge pump 50, the charge pump 50 can be precisely controlled according to the cell type of the battery pack module 60, so that different quick charge capacities of the double-cell battery and the single-cell battery are given under the condition that the battery pack module 60 is safe, and the charge rate is improved.
The embodiment of the disclosure also provides electronic equipment, which comprises the charging circuit.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A charging circuit, the charging circuit comprising:
a charging interface;
the switch circuit is connected with the charging interface;
the first charging circuit is connected with the switch circuit and is used for being connected with the battery pack module;
the second charging circuit is connected with the switch circuit and is used for being connected with the battery pack module;
the switch circuit is used for selectively conducting the charging interface and the first charging circuit so as to charge the double-cell battery when the cell type of the battery pack module is the double-cell battery, or conducting the charging interface and the second charging circuit so as to charge the single-cell battery when the cell type of the battery pack module is the single-cell battery.
2. The charging circuit of claim 1, further comprising a controller and a sense terminal,
the detection end is used for being connected with the battery pack module to detect the type of the battery cell of the battery pack module;
the controller is connected with the detection end and the switch circuit.
3. The charging circuit of claim 2, wherein the first charging circuit comprises a voltage conversion circuit and a connector;
the connector is connected with the voltage conversion circuit and is used for being connected with the battery pack module;
the voltage conversion circuit is connected with the switch circuit and is used for boosting the electric energy transmitted by the charging interface so as to charge the battery pack module through the connector.
4. A charging circuit according to claim 3, wherein the second charging circuit comprises the connector;
the connector is connected with the switch circuit and is used for being connected with the battery pack module.
5. The charging circuit of claim 4, wherein the charging circuit further comprises: a power management chip;
one end of the power management chip is connected with the charging interface, and the other end of the power management chip is connected with the switch circuit.
6. The charging circuit of claim 5, wherein the capacitor is configured to provide the power supply voltage,
the power management chip, the switch circuit, the first charging circuit and the second charging circuit are used for forming a discharging circuit of the battery pack module.
7. The charging circuit of claim 4, wherein the charging circuit further comprises: a charge pump;
one end of the charge pump is connected with the charging interface, the other end of the charge pump is connected with the connector, and the connector is used for being connected with the battery pack module.
8. The charging circuit of claim 7, wherein the charge pump comprises a first charge pump and a second charge pump, the connector comprising a first connector and a second connector;
the first end of the first charge pump is connected with the charging interface, the second end of the first charge pump is connected with the first end of the first connector, the second end of the first connector is used for being connected with the battery pack module, the third end of the first connector is connected with the voltage conversion circuit, and the fourth end of the first connector is connected with the switch circuit;
the first end of the second charge pump is connected with the charging interface, the second end of the second charge pump is connected with the first end of the second connector, and the second end of the second connector is used for being connected with the battery pack module.
9. The charging circuit of claim 7, wherein the charge pump comprises a first mode of operation and a second mode of operation, wherein the charge pump has a different voltage ratio between the first mode of operation and the second mode of operation, and wherein the charge pump is coupled to the controller.
10. An electronic device comprising a charging circuit as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321638352.0U CN220066954U (en) | 2023-06-26 | 2023-06-26 | Charging circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321638352.0U CN220066954U (en) | 2023-06-26 | 2023-06-26 | Charging circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220066954U true CN220066954U (en) | 2023-11-21 |
Family
ID=88766274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321638352.0U Active CN220066954U (en) | 2023-06-26 | 2023-06-26 | Charging circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220066954U (en) |
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2023
- 2023-06-26 CN CN202321638352.0U patent/CN220066954U/en active Active
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