CN210120418U - Charging circuit and charger - Google Patents

Charging circuit and charger Download PDF

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Publication number
CN210120418U
CN210120418U CN201921009575.4U CN201921009575U CN210120418U CN 210120418 U CN210120418 U CN 210120418U CN 201921009575 U CN201921009575 U CN 201921009575U CN 210120418 U CN210120418 U CN 210120418U
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rated power
output interface
power
rated
circuit
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李贡献
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Shenzhen Ranvoo Technology Co Ltd
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Shenzhen Ranvoo Technology Co Ltd
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Abstract

The utility model provides a charging circuit and charger, which comprises a power adjusting module, a detecting switch module, a control module, a first output interface and a second output interface, wherein one end of the second output interface is connected with the power adjusting module, the first end of the detecting switch module is connected with the power adjusting module, the second end is connected with one end of the control module, the third end is connected with one end of the first output interface, the other end of the control module is connected with the power adjusting module, the second output interface has a first rated power and a second rated power, the detecting switch module is used for controlling the rated power of the second output interface to be the first rated power when detecting that the current of the first output interface is less than or equal to a preset threshold value, and when the current value of the first output interface is detected to be larger than the preset threshold value, the control module controls the current of the second output interface to be the second rated power. The utility model discloses reduce the limitation that charges, for current charging device the cost is reduced.

Description

Charging circuit and charger
Technical Field
The utility model relates to a technical field that charges, concretely relates to charging circuit and charger.
Background
Electronic devices such as notebook computers, mobile phones, tablet computers and the like are more and more popular, so that the life of people is greatly facilitated, and as people may often face the situation that the mobile phone is urgently needed and the mobile phone is out of power, the rapid charging technology is brought forward.
At present, a charging device can charge a plurality of devices at the same time, but because the rated power of each interface is fixed, under the condition that the rated power of each output interface is ensured to be higher, the total rated power of the charging device is set to be higher, which causes the cost of the charging device to be increased, or whether the devices are charged or not is determined by detecting the insertion state of the output interface, but when the output interface is in the inserted state, the devices are not actually charged by the output interface, thereby causing the influence on the devices charged by other output interfaces. Therefore, the conventional charging device causes limitation of charging and increase of cost.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a charging circuit and charger has solved the restrictive and with high costs technical problem that current charging device will cause.
According to an aspect of an embodiment of the present invention, there is provided a charging circuit, including a power regulation module, and further including a detection switch module, a control module, a first output interface and a second output interface, wherein one end of the second output interface is connected to the power regulation module, the other end of the second output interface is used for being connected to a first charging device, the first end of the detection switch module is connected to the power regulation module, the second end of the detection switch module is connected to one end of the control module, the third end of the detection switch module is connected to one end of the first output interface, the other end of the control module is connected to the power regulation module, the other end of the first output interface is used for being connected to a second charging device, the second output interface has a first rated power and a second rated power, the detection switch module is used for controlling the rated power of the second output interface to be a first rated power when detecting that the current of the first output interface is smaller than or equal to a preset threshold value, and controlling the current of the second output interface to be a second rated power when detecting that the current value of the first output interface is larger than the preset threshold value, wherein the first rated power is larger than the second rated power, and the first rated power is larger than the rated power of the first output interface.
According to an aspect of the embodiments of the present invention, there is provided a charger including a charging circuit.
In an optional mode, the charger comprises a charging head, a mobile power supply and an on-board charger.
The charging circuit of the utility model comprises a detection switch module, a control module, a first output interface and a second output interface, one end of the second output interface is connected with the power regulation module, the other end of the second output interface is used for being connected with a first charging device, the first end of the detection switch module is connected with the power regulation module, the second end of the detection switch module is connected with one end of the control module, the third end of the detection switch module is connected with one end of the first output interface, the other end of the control module is connected with the power regulation module, the other end of the first output interface is used for being connected with a second charging device, the second output interface has a first rated power and a second rated power, the detection switch module is used for detecting that the current of the first output interface is less than or equal to a preset threshold value, the control module controls the rated power of the second output interface to be a first rated power, and when the current value of the first output interface is detected to be larger than the preset threshold value, the control module controls the current of the second output interface to be a second rated power, wherein the first rated power is larger than the second rated power, and the first rated power is larger than the rated power of the first output interface; the utility model also provides a charger, this charging circuit and charger have avoided first output interface to be in the insertion state but do not have and cause the influence to other interfaces under the circumstances that equipment charges, and then have reduced the limitation that charges to, this charging circuit is for current charging device reduce the cost.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic diagram of a charging circuit according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a charging circuit according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a charging circuit according to another embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
The utility model discloses a charging circuit, please refer to fig. 1, the charging circuit includes a power adjusting module, a detecting switch module (which can be a load switch or a detecting chip), a control module, a first output interface and a second output interface, one end of the second output interface is connected with the power adjusting module, the other end of the second output interface is used for connecting with a first charging device, the first end of the detecting switch module is connected with the power adjusting module, the second end of the detecting switch module is connected with one end of the control module, the third end of the detecting switch module is connected with one end of the first output interface, the other end of the control module is connected with the power adjusting module, the other end of the first output interface is used for connecting with a second charging device, the power adjusting module is used for adjusting voltage and/or converting alternating current into direct current, of course, also can be used for converting direct current into direct current, the control module may be a main control chip, and is configured to control the entire charging circuit, where the power adjustment module stores a plurality of charging protocols, and when it is detected that the current value of the first output interface is greater than a preset threshold, it indicates that a device is connected, the device and the charging apparatus are subjected to protocol matching, and pdo (power delivery output) resetting is performed according to a matching result, so as to adjust the voltage of the first output interface to a first preset voltage.
Further, the detection switch module is used for detecting a current value of the first output interface, and when the detection switch module detects that the current value of the first output interface is greater than a preset threshold, the control module controls the power regulation module to regulate the voltage of the first output interface to a first preset voltage and reduce the first rated power of the second output interface to a second rated power, wherein the preset threshold is 50 mA-200 mA; alternatively, the preset threshold is 50mA, 55mA, 60mA, 55mA, 70mA, 75mA, 80mA, 85mA, 90mA, 95mA, 100mA, 105mA, 110mA, 115mA, 120mA, 125mA, 130mA, 135mA, 140mA, 145mA, 150mA, 155mA, 160mA, 165mA, 170mA, 175mA, 180mA, 185mA, 190mA, 195mA, or 200 mA.
In one embodiment, the first power rating is greater than or equal to the sum of a second power rating, which may be 60W, 45W, 36W, 30W, 29W, 27W, 18W, 15W, 12W, 10W, or 5W, and the power rating of the first output interface, which is 45W, 36W, 30W, 29W, 27W, 18W, 15W, 12W, 10W, or 5W.
Or the first rated power is 100W, the second rated power is 60W, and the rated power of the first output interface is 30W or 18W, or the first rated power is 60W, the second rated power is 45W, and the rated power of the first output interface is 15W, 12W or 5W, or the first rated power is 45W, the second rated power is 30W, and the rated power of the first output interface is 15W, 12W or 5W, or the first rated power is 30W, the second rated power is 18W, and the rated power of the first output interface is 12W, or the first rated power is 18W, the second rated power is 12W or 5W, and the rated power of the first output interface is 5W.
In another embodiment, the sum of the second rated power and the rated power of the first output interface is greater than the first rated power and less than 1.2 times of the first rated power, the first rated power is 100W, 60W, 45W, 36W, 30W, 29W, 27W, 18W or 15W, the second rated power is 60W, 45W, 36W, 30W, 29W, 27W, 18W, 15W, 12W, 10W or 5W, the rated power of the first output interface is 45W, 36W, 30W, 29W, 27W, 18W, 15W, 12W, 10W or 5W;
or, the first rated power is 100W, the second rated power is 60W or 45W, and the rated power of the first output interface is 45W or 60W;
or, the first rated power is 60W, the second rated power is 45W or 18W, and the rated power of the first output interface is 18W or 45W;
or, the first rated power is 45W, the second rated power is 30W or 18W, and the rated power of the first output interface is 18W or 30W;
or, the first rated power is 30W, the second rated power is 18W or 15W, and the rated power of the first output interface is 15W or 18W;
or, the first rated power is 18W, the second rated power is 15W or 5W, and the rated power of the first output interface is 5W or 15W. Since the actual power of the charging device is larger than the first rated power, and generally the actual power is 1.2 times the first rated power, the present embodiment can make better use of the power of the charging device, and the charging device can be used most efficiently.
For example, if the first rated power of the second output interface is 30W (e.g., 20V/1.5A), the second rated power of the second output interface is 18W (e.g., 9V/2A), the rated power of the first output interface is 15W (e.g., 9V/1.67A), and when it is detected that the current value of the first output interface is greater than or equal to the preset threshold value, the third rated power of the first output interface is not changed, and the voltage of the second output interface is reduced to 9V by the power adjustment module, so that the rated power of the second output interface is reduced to 18W (e.g., 9V/2A).
If the first rated power of the second output interface is 18W (for example, 9V/2A), the second rated power of the second output interface is 15W (for example, 9V/1.67A), the rated power of the first output interface is 5W (for example, 5V/1A), when the current value of the first output interface is detected to be larger than the preset threshold value, the third rated power of the first output interface is unchanged, the voltage of the second output interface is reduced to 5V through the voltage regulating circuit, and the rated power of the second output interface is reduced to 15W (for example, 9V/1.67A).
In the present embodiment, the sum of the second rated power and the third rated power is larger than the first rated power and smaller than 1.2 times the first rated power, and therefore, the power can be effectively used. In the conventional scheme, when two output interfaces are used simultaneously, the rated power of 18W becomes 5W and 5W, at this moment, the power reduction of the output interfaces is too large, and the user experience is poor, and in this embodiment, compared with the conventional scheme, the power of the second output interface is reduced from 18W to 15W, and the power reduction is very small, so that when the user uses the second output interface alone or uses the second output interface and the first output interface simultaneously, the user experience is better.
The control module is further configured to control a circuit of the second output interface to be turned off when detecting that the current value of the first output interface is greater than a preset threshold, control a circuit corresponding to the second output interface to be turned on when the rated power of the second output interface is adjusted to a second rated power, control the second output interface to be turned off when the detection switch module detects that the current of the first output interface is less than or equal to the preset threshold, and control the circuit of the second output interface to be turned on when the rated power of the second output interface is adjusted to the first rated power.
The charging circuit that this embodiment provided detects the current value of first output interface through detecting switch module, when detecting that the current value is greater than or equal to and predetermines the threshold value, control module is through reducing the rated power of second output interface, adjusts the voltage of first output interface, has avoided first output interface to be in the insertion state but has not caused the influence to other interfaces under the circumstances that equipment charges, and then has reduced the limitation of charging, and this charging circuit has reduced the cost for current charging device.
Referring to fig. 2, the charging device of the present embodiment may be a charging head, a mobile power supply, and a vehicle-mounted charger, where the charging head is mainly used for being connected to a mains supply to charge, the mobile power supply may be a 4.2V lithium battery to charge a device, the vehicle-mounted charger may be a 12V battery to charge, when the charging head is connected to the mains supply, firstly, an alternating current is converted into a direct current through a power regulating circuit to reduce voltage, and then, the voltage is regulated through the voltage regulating circuit, or, the current is converted into a direct current through the power regulating circuit to reduce voltage; when the charger is a mobile power supply or a vehicle-mounted charger, the current is reduced through the power regulating circuit, and then the voltage is reduced through the voltage regulating circuit.
In one embodiment, the power regulating module includes a power regulating circuit and a voltage regulating circuit, one end of the power regulating circuit is connected with one end of the control module, the other end of the power regulating circuit is connected with the second output interface, the first end of the voltage regulating circuit is connected with the first end of the detection switch module, the second end of the voltage regulating circuit is connected with the power regulating circuit, the second end of the detection switch module is connected with the other end of the control module, the other end of the detection switch module is connected with the first output interface, the power regulating circuit can convert alternating current into direct current and boost or buck-boost the direct current, when the detection switch module detects that the current value of the first output interface is greater than a preset threshold value, a detection signal is sent to the control module, the control module controls the voltage regulating circuit to step down the voltage of the first output interface according to the detection signal, and the voltage of the first output interface is reduced to a first preset voltage, and the rated power of the second output interface is reduced from the first rated power to a second rated power by the control module. Therefore, the influence on other interfaces under the condition that the first output interface is in the insertion state but no equipment is charged is avoided, and the limitation of charging is further reduced.
The power regulating circuit comprises a direct current boost-buck circuit, the direct current boost-buck circuit can reduce the voltage output by the battery to a second preset voltage, and then the voltage is reduced from the second preset voltage to the first preset voltage through the voltage regulating circuit. Of course, the power conditioning circuit further includes an ac buck-boost circuit, which can convert ac current into dc current, adjust the current to a second preset voltage, and then reduce the voltage from the second preset voltage to the first preset voltage through the voltage conditioning circuit.
Referring to fig. 3, in another embodiment, the power adjusting module may be a power adjusting circuit, one end of the second output interface is connected to the power adjusting circuit, the first end of the detection switch module is connected to the power adjusting circuit, the other end of the control module is connected to the power adjusting circuit, when the detection switch module detects that the current value of the first output interface is greater than or equal to the preset threshold, the detection switch module sends a detection signal to the control module, and the control module controls the power adjusting circuit to reduce the voltage of the first output interface to the first preset voltage.
Furthermore, the power regulating circuit comprises a primary coil, a first secondary coil and a second secondary coil, wherein the voltage of the second output interface is reduced to a second preset voltage by the primary coil and the first secondary coil, and the voltage of the first output interface is reduced to a first preset voltage by the primary coil and the second secondary coil.
Furthermore, the third voltage reduction circuit further comprises a first rectifying and filtering device and a second rectifying and filtering device, one end of the first rectifying and filtering device is connected with the output end of the first secondary coil, the other end of the first rectifying and filtering device is connected with the second output interface, the second rectifying and filtering device is connected with the output end of the second secondary coil, the power regulating circuit reduces the voltage of the first output interface to a first preset voltage and then converts the alternating current into the direct current through the second rectifying and filtering device, and the power regulating circuit reduces the voltage of the second output interface to a second preset voltage and then converts the alternating current into the direct current through the first rectifying and filtering device.
The utility model also provides a charger, this charger includes above charging circuit, and this charger can also be the head that charges, portable power source and on-vehicle charger etc. and this charger has avoided first output interface to be in the insertion state but has not led to the fact the influence to other interfaces under the circumstances that equipment charges, and then has reduced the limitation of charging to, this charger is for current charging device the cost is reduced.
It should be noted that unless otherwise indicated, technical or scientific terms used in accordance with embodiments of the present invention shall have the ordinary meaning as understood by those skilled in the art to which embodiments of the present invention pertain.
In the description of the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated on the drawings, which is only for convenience of describing the embodiments of the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present invention.
Furthermore, the technical terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the novel embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In describing the novel embodiments of this embodiment, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A charging circuit comprises a power regulation module and is characterized by further comprising a detection switch module, a control module, a first output interface and a second output interface, wherein one end of the second output interface is connected with the power regulation module, the other end of the second output interface is used for being connected with first charging equipment, the first end of the detection switch module is connected with the power regulation module, the second end of the detection switch module is connected with one end of the control module, the third end of the detection switch module is connected with one end of the first output interface, the other end of the control module is connected with the power regulation module, the other end of the first output interface is used for being connected with second charging equipment, the second output interface has a first rated power and a second rated power, and the detection switch module is used for detecting that the current of the first output interface is smaller than or equal to a preset threshold value, the control module controls the rated power of the second output interface to be a first rated power, and when the current value of the first output interface is detected to be larger than the preset threshold value, the control module controls the rated power of the second output interface to be a second rated power, wherein the first rated power is larger than the second rated power, and the first rated power is larger than the rated power of the first output interface.
2. The charging circuit of claim 1, wherein the first power rating is greater than or equal to a sum of the second power rating and a power rating of the first output interface, the first power rating is 100W, 60W, 45W, 36W, 30W, 29W, 27W, 18W, or 15W, the second power rating is 60W, 45W, 36W, 30W, 29W, 27W, 18W, 15W, 12W, 10W, or 5W, the first output interface power rating is 45W, 36W, 30W, 29W, 27W, 18W, 15W, 12W, 10W, or 5W;
or, the first rated power is 100W, the second rated power is 60W, and the rated power of the first output interface is 30W or 18W;
or the first rated power is 60W, the second rated power is 45W, and the rated power of the first output interface is 15W, 12W or 5W;
or the first rated power is 45W, the second rated power is 30W, and the rated power of the first output interface is 15W, 12W or 5W;
or the first rated power is 30W, the second rated power is 18W, and the rated power of the first output interface is 12W;
or the first rated power is 18W, the second rated power is 12W or 5W, and the rated power of the first output interface is 5W.
3. The charging circuit of claim 1, wherein a sum of the second rated power and a rated power of the first output interface is greater than the first rated power and less than 1.2 times the first rated power, the first rated power is 100W, 60W, 45W, 36W, 30W, 29W, 27W, 18W, or 15W, the second rated power is 60W, 45W, 36W, 30W, 29W, 27W, 18W, 15W, 12W, 10W, or 5W, the rated power of the first output interface is 45W, 36W, 30W, 29W, 27W, 18W, 15W, 12W, 10W, or 5W;
or the first rated power is 100W, the second rated power is 45W, and the rated power of the first output interface is 60W;
or the first rated power is 100W, the second rated power is 60W, and the rated power of the first output interface is 45W;
or the first rated power is 60W, the second rated power is 45W, and the rated power of the first output interface is 18W;
or the first rated power is 60W, the second rated power is 18W, and the rated power of the first output interface is 45W;
or the first rated power is 45W, the second rated power is 30W, and the rated power of the first output interface is 18W;
or the first rated power is 45W, the second rated power is 18W, and the rated power of the first output interface is 30W;
or the first rated power is 30W, the second rated power is 15W, and the rated power of the first output interface is 18W;
or the first rated power is 30W, the second rated power is 18W, and the rated power of the first output interface is 15W;
or the first rated power is 18W, the second rated power is 15W, and the rated power of the first output interface is 5W;
or, the first rated power is 18W, the second rated power is 5W, and the rated power of the first output interface is 15W.
4. The charging circuit according to claim 1, wherein the preset threshold is 50mA to 200 mA;
alternatively, the preset threshold is 50mA, 55mA, 60mA, 65mA, 70mA, 75mA, 80mA, 85mA, 90mA, 95mA, 100mA, 105mA, 110mA, 115mA, 120mA, 125mA, 130mA, 135mA, 140mA, 145mA, 150mA, 155mA, 160mA, 165mA, 170mA, 175mA, 180mA, 185mA, 190mA, 195mA, or 200 mA.
5. The charging circuit of claim 1, wherein the power regulating module comprises a power regulating circuit and a voltage regulating circuit, a first terminal of the voltage regulating circuit is connected to a first terminal of the detection switch module, a second terminal of the voltage regulating circuit is connected to the power regulating circuit, and the voltage regulating circuit is configured to reduce the voltage of the first output interface to a first preset voltage.
6. The charging circuit of claim 1, wherein the power regulation module comprises a power regulation circuit, one end of the second output interface is connected to the power regulation circuit, the first end of the detection switch module is connected to the power regulation circuit, the other end of the control module is connected to the power regulation circuit, and the power regulation circuit is configured to directly reduce the voltage of the first output interface to a first preset voltage when the detection switch module detects that the current value of the first output interface is greater than a preset threshold value.
7. The charging circuit of claim 6, wherein the power conditioning circuit comprises a primary coil, a first secondary coil and a second secondary coil, the primary coil and the first secondary coil are configured to reduce the voltage of the second output interface to a second predetermined voltage, and the primary coil and the second secondary coil are configured to adjust the voltage of the first output interface to the first predetermined voltage.
8. The charging circuit of claim 7, wherein the power conditioning circuit comprises a first rectifying and filtering device and a second rectifying and filtering device, one end of the first rectifying and filtering device is connected to the output end of the first secondary winding, the other end of the first rectifying and filtering device is connected to the second output interface, the second rectifying and filtering device is connected to the output end of the second secondary winding, and the other end of the second rectifying and filtering device is connected to the first output interface.
9. The charging circuit according to claim 1, wherein the control module is further configured to control the circuit of the second output interface to be turned off when detecting that the current value of the first output interface is greater than a preset threshold, and to control the circuit of the second output interface to be turned on when the rated power of the second output interface is adjusted to a second rated power.
10. A charger, characterized in that it comprises a charging circuit according to any one of claims 1-9.
CN201921009575.4U 2019-07-01 2019-07-01 Charging circuit and charger Active CN210120418U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112260348A (en) * 2020-09-30 2021-01-22 安克创新科技股份有限公司 Charging control circuit and charging equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112260348A (en) * 2020-09-30 2021-01-22 安克创新科技股份有限公司 Charging control circuit and charging equipment
CN112260348B (en) * 2020-09-30 2023-11-17 安克创新科技股份有限公司 Charging control circuit and charging equipment

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