CN219659466U - Charging circuit and electronic equipment - Google Patents
Charging circuit and electronic equipment Download PDFInfo
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- CN219659466U CN219659466U CN202320574935.5U CN202320574935U CN219659466U CN 219659466 U CN219659466 U CN 219659466U CN 202320574935 U CN202320574935 U CN 202320574935U CN 219659466 U CN219659466 U CN 219659466U
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- 238000005286 illumination Methods 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
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Abstract
The utility model discloses a charging circuit and an electronic device, wherein the charging circuit comprises: a photovoltaic charging assembly; a USB charging assembly; the power supply switching unit is provided with a selection control end, a selection output end, a first selection input end connected with the photovoltaic charging assembly and a second selection input end connected with the USB charging assembly, and is used for adjusting the communication state between the first selection input end and the selection output end and the communication state between the second selection input end and the selection output end; the charging unit is connected between the selection output end and the module to be charged; the light intensity detection unit is used for detecting illumination intensity; and the controller is respectively connected with the selection control end and the light intensity detection unit. According to the utility model, two charging modes of the photovoltaic charging assembly and the USB charging assembly are adopted, so that the photovoltaic charging assembly is utilized for charging in application scenes such as long outgoing time of a user, and the purpose of prolonging the endurance is achieved.
Description
Technical Field
The present utility model relates to the field of electronic devices, and in particular, to a charging circuit and an electronic device.
Background
With the development of science and technology and economy, some portable electronic devices such as bluetooth headsets and smart bracelets have been widely used. At present, the electronic devices mainly utilize the USB interface to charge the built-in battery, and after the charging is completed, the electronic devices can maintain cruising by means of the electric quantity stored in the battery. However, the single-storage battery can not maintain enough endurance by means of pre-charged electric quantity, and particularly the problem is more obvious when the battery is used in outdoor application, so that the problem of how to successfully improve the endurance of the electronic devices is needed to be solved.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a charging circuit which can solve the problem that the conventional electronic equipment has shorter endurance.
The utility model further provides electronic equipment.
A charging circuit according to an embodiment of the first aspect of the present utility model includes:
a photovoltaic charging assembly;
a USB charging assembly;
the power supply switching unit is provided with a selection control end, a selection output end, a first selection input end connected with the photovoltaic charging assembly and a second selection input end connected with the USB charging assembly, and is used for adjusting the communication state between the first selection input end and the selection output end and the communication state between the second selection input end and the selection output end;
the charging unit is connected between the selection output end and the module to be charged;
the light intensity detection unit is used for detecting illumination intensity;
and the controller is respectively connected with the selection control end and the light intensity detection unit.
The charging circuit provided by the embodiment of the utility model has at least the following beneficial effects:
the photovoltaic charging assembly can acquire light energy to charge, the illumination intensity in the environment can be detected by the illumination detection unit, and then when the illumination in the environment is stronger, the photovoltaic charging assembly is utilized to carry out supplementary charging, so that the cruising ability of the device is effectively improved. In addition, the USB charging assembly can be connected with external USB charging equipment to charge, and can be directly charged when illumination is weaker. The charging circuit provided by the embodiment of the utility model adopts two charging modes of the photovoltaic charging assembly and the USB charging assembly, so that the photovoltaic charging assembly can be used for charging in application scenes such as longer outgoing time of a user, and the purpose of prolonging the endurance is achieved.
According to some embodiments of the utility model, the power switching unit includes:
the photovoltaic selection circuit is provided with a photovoltaic selection end connected with the controller, a photovoltaic input end connected with the photovoltaic charging assembly and a photovoltaic output end connected with the charging unit;
the USB selection circuit is provided with a USB selection end connected with the controller, a USB input end connected with the photovoltaic charging assembly and a USB output end connected with the photovoltaic output end.
According to some embodiments of the utility model, the photovoltaic selection circuit comprises:
the grid electrode of the first NMOS tube is connected with the controller, and the source electrode of the first NMOS tube is connected with the ground wire;
the grid electrode of the first PMOS tube is connected with the drain electrode of the first NMOS tube, and the source electrode of the first PMOS tube is connected with the photovoltaic charging assembly;
and the grid electrode of the second PMOS tube is connected with the drain electrode of the first NMOS tube, the drain electrode of the second PMOS tube is connected with the drain electrode of the first PMOS tube, and the source electrode of the second PMOS tube is connected with the charging unit.
According to some embodiments of the utility model, the USB selection circuit includes:
the grid electrode of the second NMOS tube is connected with the controller, and the source electrode of the second NMOS tube is connected with the ground wire;
the grid electrode of the third PMOS tube is connected with the drain electrode of the second NMOS tube, and the source electrode of the third PMOS tube is connected with the USB charging component;
and the grid electrode of the fourth PMOS tube is connected with the drain electrode of the second NMOS tube, the drain electrode of the fourth PMOS tube is connected with the drain electrode of the third PMOS tube, and the source electrode of the fourth PMOS tube is connected with the charging unit.
According to some embodiments of the utility model, a first capacitor is connected between the source of the third PMOS transistor and the ground line.
According to some embodiments of the utility model, the light intensity detection unit employs a light sensor.
According to some embodiments of the utility model, a second capacitor is connected between the input terminal of the photosensor and the ground.
According to some embodiments of the utility model, the charging unit employs a charging chip.
According to some embodiments of the utility model, the USB charging assembly employs a USB connector.
An electronic device according to an embodiment of the second aspect of the present utility model comprises a charging circuit as described in the embodiment of the first aspect. The electronic device according to the embodiment of the utility model comprises the charging circuit according to the embodiment of the first aspect, and thus has all the advantages of the charging circuit according to the embodiment of the first aspect.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a system diagram of a charging circuit according to an embodiment of the utility model;
fig. 2 is a circuit diagram of a power switching unit according to an embodiment of the utility model;
FIG. 3 is a circuit diagram of the wiring of the light intensity detection unit according to the embodiment of the present utility model;
fig. 4 is a circuit diagram of a charging unit according to an embodiment of the present utility model.
Reference numerals:
photovoltaic charging module 100,
USB charging assembly 200,
A power supply switching unit 300, a photovoltaic selection circuit 310, a USB selection circuit 320,
A charging unit 400,
A light intensity detection unit 500,
And a controller 600.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, the description of first, second, etc. is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be determined reasonably by a person skilled in the art in combination with the specific content of the technical solution.
The following description of the embodiments of the present utility model will be made with reference to the accompanying drawings, in which it is apparent that the embodiments described below are some, but not all embodiments of the utility model.
Referring to fig. 1, fig. 1 is a system diagram of a charging circuit according to an embodiment of the present utility model, the charging circuit including: the photovoltaic charging assembly 100, the USB charging assembly 200, the power switching unit 300, the charging unit 400, the light intensity detection unit 500 and the controller 600;
the power supply switching unit 300 is provided with a selection control end, a selection output end, a first selection input end connected with the photovoltaic charging assembly 100 and a second selection input end connected with the USB charging assembly 200, and the power supply switching unit 300 is used for adjusting the communication state between the first selection input end and the selection output end and the communication state between the second selection input end and the selection output end;
the charging unit 400 is connected between the selection output end and the module to be charged;
a light intensity detection unit 500 for detecting illumination intensity;
the controller 600 is connected to the selection control terminal and the light intensity detection unit 500, respectively.
The electric energy converted by the photovoltaic charging assembly 100 and the electric energy input by the USB charging assembly 200 can be transmitted to the charging unit 400 through the power switching unit 300 to realize charging of a module (e.g., a battery) to be charged; and which one is charged specifically, it is necessary to switch by the power switching unit 300. The light intensity detection unit 500 can detect the illumination intensity, when the illumination intensity exceeds a certain light intensity threshold, the controller 600 controls the power supply switching unit 300 to switch to the photovoltaic charging assembly 100 for assembly, and when the illumination intensity is lower than the light intensity threshold, if the USB charging assembly 200 is connected with an external charging device, the charging of the battery can be achieved through the USB charging assembly 200.
It can be understood that setting the light intensity threshold as the switching basis can avoid the repeated switching operation of the power supply switching circuit under the condition of weaker illumination conditions, thereby ensuring the charging efficiency. In addition, under the condition of sufficient illumination, the power provided by the photovoltaic charging assembly 100 is larger enough to meet the requirement of charging the battery, while the USB charging assembly 200 is connected with an energy storage device such as a mobile power source in most outdoor situations, so that under the condition of sufficient illumination, the consumption of the electric quantity stored by the mobile power source can be reduced by stopping charging by using the USB charging assembly 200, and the charging power provided by part of the mobile power source is lower, possibly even lower than the power of the photovoltaic charging assembly 100, so that the charging efficiency can be improved when the photovoltaic charging assembly 100 is put into the condition of strong illumination.
According to the charging circuit provided by the embodiment of the utility model, the photovoltaic charging assembly 100 can acquire light energy for charging, the illumination detection unit can be used for detecting the illumination intensity in the environment, and further, when the illumination in the environment is stronger, the photovoltaic charging assembly 100 can be used for carrying out supplementary charging, so that the cruising ability of the equipment is effectively improved. In addition, the USB charging assembly 200 may be connected to an external USB charging device for charging, and may be directly charged when the illumination is weak. The charging circuit of the embodiment of the utility model adopts two charging modes of the photovoltaic charging assembly 100 and the USB charging assembly 200, so that the photovoltaic charging assembly 100 can be used for charging in application scenes such as long outgoing time of a user, and the purpose of prolonging the endurance is achieved.
Referring to fig. 2, in some embodiments, the power switching unit 300 includes: a photovoltaic selection circuit 310, a USB selection circuit 320; the photovoltaic selection circuit 310 has a photovoltaic selection terminal connected to the controller 600, a photovoltaic input terminal connected to the photovoltaic charging module 100, and a photovoltaic output terminal connected to the charging unit 400; the USB selection circuit 320 has a USB selection terminal connected to the controller 600, a USB input terminal connected to the photovoltaic charging module 100, and a USB output terminal connected to the photovoltaic output terminal.
The photovoltaic selection circuit 310 may implement control of whether the photovoltaic charging assembly 100 is connected to the charging unit 400, and the USB selection circuit 320 may implement control of whether the USB charging assembly 200 is connected to the charging unit 400. Upon receiving the illumination intensity data detected by the light intensity detection unit 500, the controller 600 controls one of the photovoltaic selection circuit 310 and the USB selection circuit 320 to be turned on according to the illumination intensity.
Referring to fig. 2, in some embodiments, the photovoltaic selection circuit 310 includes: the first NMOS tube Q2, the first PMOS tube Q3 and the second PMOS tube Q5; the grid electrode of the first NMOS tube Q2 is connected with the controller 600, and the source electrode is connected with the ground wire; the grid electrode of the first PMOS tube Q3 is connected with the drain electrode of the first NMOS tube Q2, and the source electrode is connected with the photovoltaic charging assembly 100; the gate of the second PMOS transistor Q5 is connected to the drain of the first NMOS transistor Q2, the drain is connected to the drain of the first PMOS transistor Q3, and the source is connected to the charging unit 400. After the controller 600 sends a signal to control the first NMOS transistor Q2 to be turned on, the first PMOS transistor Q3 and the second PMOS transistor Q5 are also turned on synchronously, so that the electric energy output by the photovoltaic charging assembly 100 can be transmitted to the charging unit 400. It can be understood that the MOS tube is adopted as a switching device, so that the purpose of realizing on-off control can be ensured, and meanwhile, the charging efficiency can be ensured.
Referring to fig. 2, in some embodiments, the USB selection circuit 320 includes: the second NMOS tube Q1, the third PMOS tube Q4 and the fourth PMOS tube Q6; the grid electrode of the second NMOS tube Q1 is connected with the controller 600, and the source electrode is connected with the ground wire; the grid electrode of the third PMOS tube Q4 is connected with the drain electrode of the second NMOS tube Q1, and the source electrode is connected with the USB charging component 200; the gate of the fourth PMOS transistor Q6 is connected to the drain of the second NMOS transistor Q1, the drain is connected to the drain of the third PMOS transistor Q4, and the source is connected to the charging unit 400. After the controller 600 sends a signal to control the second NMOS transistor Q1 to be turned on, the third PMOS transistor Q4 and the fourth PMOS transistor Q6 are also turned on simultaneously, so that the electric energy output by the USB charging component 200 can be transmitted to the charging unit 400. It can be understood that the MOS tube is adopted as a switching device, so that the purpose of realizing on-off control can be ensured, and meanwhile, the charging efficiency can be ensured.
Referring to fig. 2, in some embodiments, a first capacitor C2 is connected between the source of the third PMOS transistor Q4 and the ground. The filtering of the input power supply can be realized by using the first capacitor C2, so that the charging process is more stable.
Referring to fig. 3, in some embodiments, the light intensity detection unit 500 employs a light sensor. The light sensor can directly and effectively detect the illumination intensity, and compared with components such as a photoresistor, the light sensor can more accurately finish detection, and can also effectively simplify the circuit design. The photosensor may employ BH1750FVI.
Referring to fig. 3, in some embodiments, a second capacitor C5 is connected between the input of the photosensor and ground. The second capacitor C5 can be used for filtering the input power supply of the optical sensor, so that the optical sensor works more stably.
Referring to fig. 4, in some embodiments, the charging unit 400 employs a charging chip. The charging chip is directly adopted for charging, so that the charging stability can be ensured, and the subsequent maintenance is convenient. The charging chip may employ MP2615GQ.
In some embodiments, USB charging assembly 200 employs a USB connector. The integrated USB connector is directly used, so that the circuit design can be effectively simplified, and the subsequent maintenance is convenient.
In some embodiments, the controller 600 may employ a microprocessor, and in particular may employ UM8004-ACQE.
In some embodiments, the photovoltaic charging module 100 may be a commercially available product, and the size of the photovoltaic panel in the photovoltaic charging module 100 may be adjusted according to the electronic product of the practical application.
In order to better describe the charging circuit according to the embodiments of the present utility model, a detailed description is given here by way of specific embodiments.
In this embodiment, the photovoltaic charging assembly 100 is connected to the source of the first PMOS transistor Q3; a first resistor R1 is connected between the source electrode and the grid electrode of the first PMOS tube Q3, the grid electrode of the first PMOS tube Q3 is connected with the drain electrode of the first NMOS tube Q2, and the drain electrode of the first PMOS tube Q3 is connected with the drain electrode of the second PMOS tube Q5; the grid electrode of the first NMOS tube Q2 is connected with the controller 600, and the source electrode of the first NMOS tube Q2 is connected with the ground wire; the drain electrode of the first NMOS tube Q2 of the grid electrode of the second PMOS tube Q5 is connected, and the source electrode of the second PMOS tube Q5 is connected with the input end of the charging unit 400; the output end of the charging unit 400 is connected with a battery; the USB charging assembly 200 is connected with the source electrode of the third PMOS tube Q4; a second resistor R2 is connected between the source electrode and the grid electrode of the third PMOS tube Q4, the grid electrode of the third PMOS tube Q4 is connected with the drain electrode of the second NMOS tube Q1, and the drain electrode of the third PMOS tube Q4 is connected with the drain electrode of the fourth PMOS tube Q6; the grid electrode of the second NMOS tube Q1 is connected with the controller 600, and the source electrode of the second NMOS tube Q1 is connected with the ground wire; the drain electrode of the second NMOS tube Q1 of the grid electrode of the fourth PMOS tube Q6 is connected, and the source electrode of the fourth PMOS tube Q6 is connected with the input end of the charging unit 400; the light sensor is connected with the controller 600, and the controller 600 can control whether the first NMOS transistor Q2 and the second NMOS transistor Q1 are turned on according to the result of the illumination intensity detected by the light sensor.
When the illumination intensity is greater than the preset illumination threshold, the controller 600 controls the first NMOS transistor Q2 to be turned on, so that the first PMOS transistor Q3 and the second PMOS transistor Q5 are turned on, and the photovoltaic charging assembly 100 can transmit electricity obtained by converting solar energy to the charging unit 400 through the first PMOS transistor Q3 and the second PMOS transistor Q5, and charge the battery through the charging unit 400.
When the illumination intensity is less than or equal to the preset illumination threshold, the controller 600 controls the second NMOS transistor Q1 to be turned on, so that the third PMOS transistor Q4 and the fourth PMOS transistor Q6 are turned on, and the USB charging component 200 may transmit electricity to the charging unit 400 through the third PMOS transistor Q4 and the fourth PMOS transistor Q6, and charge the battery through the charging unit 400.
The charging circuit of this embodiment can acquire light energy through the photovoltaic charging module 100 and charge, utilizes the illumination intensity in the illumination detecting element can detect the environment, and then can utilize the photovoltaic charging module 100 to carry out the supplementary charging when illumination is stronger in the environment to the duration of effectual improvement equipment. In addition, the USB charging assembly 200 may be connected to an external USB charging device for charging, and may be directly charged when the illumination is weak. The charging circuit of the embodiment of the utility model adopts two charging modes of the photovoltaic charging assembly 100 and the USB charging assembly 200, so that the photovoltaic charging assembly 100 can be used for charging in application scenes such as long outgoing time of a user, and the purpose of prolonging the endurance is achieved.
The embodiment of the utility model also provides electronic equipment, which comprises the charging circuit. The electronic device in the embodiment of the utility model comprises the charging circuit, so that the electronic device has all the beneficial effects of the charging circuit.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. A charging circuit, comprising:
a photovoltaic charging assembly;
a USB charging assembly;
the power supply switching unit is provided with a selection control end, a selection output end, a first selection input end connected with the photovoltaic charging assembly and a second selection input end connected with the USB charging assembly, and is used for adjusting the communication state between the first selection input end and the selection output end and the communication state between the second selection input end and the selection output end;
the charging unit is connected between the selection output end and the module to be charged;
the light intensity detection unit is used for detecting illumination intensity;
and the controller is respectively connected with the selection control end and the light intensity detection unit.
2. The charging circuit according to claim 1, wherein the power supply switching unit includes:
the photovoltaic selection circuit is provided with a photovoltaic selection end connected with the controller, a photovoltaic input end connected with the photovoltaic charging assembly and a photovoltaic output end connected with the charging unit;
the USB selection circuit is provided with a USB selection end connected with the controller, a USB input end connected with the photovoltaic charging assembly and a USB output end connected with the photovoltaic output end.
3. The charging circuit of claim 2, wherein the photovoltaic selection circuit comprises:
the grid electrode of the first NMOS tube is connected with the controller, and the source electrode of the first NMOS tube is connected with the ground wire;
the grid electrode of the first PMOS tube is connected with the drain electrode of the first NMOS tube, and the source electrode of the first PMOS tube is connected with the photovoltaic charging assembly;
and the grid electrode of the second PMOS tube is connected with the drain electrode of the first NMOS tube, the drain electrode of the second PMOS tube is connected with the drain electrode of the first PMOS tube, and the source electrode of the second PMOS tube is connected with the charging unit.
4. The charging circuit of claim 2, wherein the USB selection circuit comprises:
the grid electrode of the second NMOS tube is connected with the controller, and the source electrode of the second NMOS tube is connected with the ground wire;
the grid electrode of the third PMOS tube is connected with the drain electrode of the second NMOS tube, and the source electrode of the third PMOS tube is connected with the USB charging component;
and the grid electrode of the fourth PMOS tube is connected with the drain electrode of the second NMOS tube, the drain electrode of the fourth PMOS tube is connected with the drain electrode of the third PMOS tube, and the source electrode of the fourth PMOS tube is connected with the charging unit.
5. The charging circuit of claim 4, wherein a first capacitor is connected between the source of the third PMOS transistor and ground.
6. The charging circuit of claim 1, wherein the light intensity detection unit employs a light sensor.
7. The charging circuit of claim 6, wherein a second capacitor is connected between the input of the light sensor and ground.
8. The charging circuit of claim 1, wherein the charging unit employs a charging chip.
9. The charging circuit of claim 1, wherein the USB charging assembly employs a USB connector.
10. An electronic device comprising a charging circuit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320574935.5U CN219659466U (en) | 2023-03-14 | 2023-03-14 | Charging circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320574935.5U CN219659466U (en) | 2023-03-14 | 2023-03-14 | Charging circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219659466U true CN219659466U (en) | 2023-09-08 |
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ID=87853164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320574935.5U Active CN219659466U (en) | 2023-03-14 | 2023-03-14 | Charging circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219659466U (en) |
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2023
- 2023-03-14 CN CN202320574935.5U patent/CN219659466U/en active Active
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