CN220754368U - Automatic switching circuit of power adapter - Google Patents
Automatic switching circuit of power adapter Download PDFInfo
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- CN220754368U CN220754368U CN202321157198.5U CN202321157198U CN220754368U CN 220754368 U CN220754368 U CN 220754368U CN 202321157198 U CN202321157198 U CN 202321157198U CN 220754368 U CN220754368 U CN 220754368U
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Abstract
The utility model discloses an automatic switching circuit of ase:Sub>A power adapter, which comprises ase:Sub>A functional chip U6, ase:Sub>A functional chip U5, ase:Sub>A functional chip U7, ase:Sub>A functional chip U8, ase:Sub>A first interface USB-A, ase:Sub>A second interface USB-L and ase:Sub>A PMOS tube Q3, wherein the input ends of the functional chip U5 and the functional chip U7 are respectively connected with ase:Sub>A power end V+, the output end of the functional chip U5 is connected with the functional chip U6, the grid electrode of the PMOS tube Q3 is connected with the functional chip U6, the source electrode of the PMOS tube Q3 is connected with ase:Sub>A power end V+1, the drain electrode of the PMOS tube Q3 is connected with the positive electrode of the first interface USB-A, the functional chip U8 is connected between the functional chip U7 and the second interface USB-L, and the control end LINK of the functional chip U8 is connected with the functional chip U6. The utility model can meet the synchronous and asynchronous plugging requirements of single equipment and multiple equipment and can play a role in protection.
Description
Technical Field
The present utility model relates to power adapters, and more particularly, to an automatic switching circuit for a power adapter.
Background
The power adapter is an electronic product for performing voltage-current conversion so as to supply power or charge for low-voltage direct-current equipment, and an existing power adapter is generally provided with corresponding types of interfaces for mutual matching with various types of electronic equipment, wherein the interfaces comprise a USB interface, a Lightning interface and the like, the existing product can only rapidly charge powered equipment through one type of wire, and potential safety hazards easily occur when two powered equipment with different interface types are simultaneously inserted into the USB interface and the Lightning interface of the power adapter. To solve these problems, the existing means include a manner of setting the interface position, please refer to chinese patent publication No. CN 217062574, entitled "a power adapter", in which:
the distance between the first waist-shaped through hole and the second waist-shaped through hole is smaller than 3mm, so that the first female seat interface and the second female seat interface are prevented from being inserted into the male head interface at the same time, and internal short circuits of the power adapter are avoided, or the first female seat interface and the second female seat interface cannot be independently and normally powered, or the first female seat interface or the second female seat interface is powered because the other is inserted into the male head interface, so that risks such as electric leakage, short circuits, open circuits or false contact are avoided.
The mechanism realizes alternative insertion of the plug by shortening the distance between the two inserting holes, but the design mode needs to change the shell structure of the adapter, and the inserting holes too close to the inserting holes are difficult to arrange, so that the design and manufacturing difficulties are increased, and the production and the manufacturing are not facilitated.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the automatic switching circuit of the power adapter, which can meet the synchronous and asynchronous plugging requirements of single equipment and multiple equipment and has the protection function, aiming at the defects of the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme.
The utility model provides ase:Sub>A power adapter automatic switch circuit, its is including function chip U6, function chip U5, function chip U7, function chip U8, first interface USB-A, second interface USB-L and PMOS pipe Q3, function chip U5 with function chip U7's input is connected power supply end V+ respectively, function chip U5's output connect in function chip U6, PMOS pipe Q3's grid connect in function chip U6, PMOS pipe Q3's source electrode connect in power supply end V+1, PMOS pipe Q3's drain electrode connect in the positive pole of first interface USB-A, function chip U8 connect in between function chip U7 and the second interface USB-L, function chip U8's control end LINK connect in function chip U6.
Preferably, the multifunctional integrated circuit comprises a functional chip U9, a third interface USB-C and a PMOS tube Q4, wherein a source electrode of the PMOS tube Q4 is connected to the functional chip U6, a drain electrode of the PMOS tube Q4 is connected to an anode of the third interface USB-C, and a grid electrode of the PMOS tube Q4 is connected to the functional chip U9.
Preferably, a diode D5 is included, an anode of the diode D5 is connected to the source of the PMOS transistor Q4, and a cathode of the diode D5 is connected to the functional chip U9.
Preferably, the datase:Sub>A port of the first interface USB-A is connected to the functional chip U6.
Preferably, the data port of the third interface USB-C is connected to the functional chip U6.
Preferably, the data port of the second interface USB-L is connected to the functional chip U8.
In the automatic switching circuit of the power adapter disclosed by the utility model, the functional chip U6 is used as ase:Sub>A core detection and control unit, the first interface USB-A is used as ase:Sub>A USB output interface, the second interface USB-L is used as ase:Sub>A Lightning interface or ase:Sub>A type-c interface, in practical application, ase:Sub>A wire protocol can be read and decoded by using the Lightning interface through protocol control, after power supply is started, the complete communication between the PD power supply protocol and the Lightning wire is realized, at the moment, the powered end equipment can completely read the content of the charger protocol and complete handshake, charging is implemented in an optimal state, in ase:Sub>A normal state, no matter the Lightning port works independently or the USB A port works independently, 18W of fast charging energy can be output, and handshake is carried out based on the QC3.0 standard protocol and the powered end, however, once the equipment of the Lightning wire and the equipment of the USB A are simultaneously inserted into corresponding output ports, the voltage of the two ports can quickly fall back to 5V, each port obtains 5V/1.5A current, and when any port exits from ase:Sub>A charging mode or the charging wire is correspondingly closed, and the other charging standard is executed again. Based on the principle, compared with the prior art, the utility model not only meets the synchronous and asynchronous plugging requirements of single equipment and multiple equipment, but also plays a good charge protection role and better meets the application requirements.
Drawings
Fig. 1 is a schematic diagram of an automatic switching circuit for a power adapter according to the present utility model.
Detailed Description
The utility model is described in more detail below with reference to the drawings and examples.
The utility model discloses an automatic switching circuit of ase:Sub>A power adapter, referring to fig. 1, which comprises ase:Sub>A functional chip U6, ase:Sub>A functional chip U5, ase:Sub>A functional chip U7, ase:Sub>A functional chip U8, ase:Sub>A first interface USB-A, ase:Sub>A second interface USB-L and ase:Sub>A PMOS tube Q3, wherein the input ends of the functional chip U5 and the functional chip U7 are respectively connected with ase:Sub>A power end V+, the output end of the functional chip U5 is connected with the functional chip U6, the grid electrode of the PMOS tube Q3 is connected with the functional chip U6, the source electrode of the PMOS tube Q3 is connected with ase:Sub>A power end V+1, the drain electrode of the PMOS tube Q3 is connected with the positive electrode of the first interface USB-A, the functional chip U8 is connected between the functional chip U7 and the second interface USB-L, and the control end LINK of the functional chip U8 is connected with the functional chip U6.
In the above structure, the functional chip U6 is used as ase:Sub>A core detection and control unit, the first interface USB-ase:Sub>A is used as ase:Sub>A USB output interface, the second interface USB-L is used as ase:Sub>A Lightning interface or ase:Sub>A type-c interface, in practical application, the Lightning interface may be used to read ase:Sub>A wire protocol and decode the wire protocol, and after that, power is turned on to implement complete communication between the PD power protocol and the Lightning wire, the current receiving end device at this time may completely read the content of the charger protocol and complete handshaking, implement charging in an optimal state, and under ase:Sub>A normal state, no matter whether the Lightning port works alone or the USB ase:Sub>A port works alone, can output 18W of fast charging energy and handshake with the current receiving end based on the QC3.0 standard protocol, however, once the Lightning wire device and the USB ase:Sub>A device are plugged into the corresponding output port at the same time, the voltage of both ports may quickly fall back to 5V, each port obtains ase:Sub>A current of 5V/1.5 ase:Sub>A, and when any port exits the charging mode or the charging wire is turned off, and the corresponding charging port is turned off and the other corresponding fast charging port is started again, and the corresponding charging standard is executed. Based on the principle, compared with the prior art, the utility model not only meets the synchronous and asynchronous plugging requirements of single equipment and multiple equipment, but also plays a good charge protection role and better meets the application requirements.
Further, the embodiment includes a functional chip U9, a third interface USB-C, and a PMOS transistor Q4, where a source of the PMOS transistor Q4 is connected to the functional chip U6, a drain of the PMOS transistor Q4 is connected to an anode of the third interface USB-C, and a gate of the PMOS transistor Q4 is connected to the functional chip U9. The third interface USB-C may serve as a further output interface.
The circuit further comprises a diode D5, wherein the anode of the diode D5 is connected with the source electrode of the PMOS tube Q4, and the cathode of the diode D5 is connected with the functional chip U9. Wherein the diode D5 mainly plays a role of backstop.
Preferably, the datase:Sub>A port of the first interface USB-ase:Sub>A is connected to the functional chip U6. The data port of the third interface USB-C is connected with the functional chip U6. The data port of the second interface USB-L is connected to the functional chip U8. The functional chip U6 and the functional chip U8 can detect the plugging state of each interface through the data port.
In this embodiment, the chip model of the functional chip U5 is: 。
in this embodiment, the chip model of the functional chip U6 is: 。
in this embodiment, the chip model of the functional chip U7 is: 。
in this embodiment, the chip model of the functional chip U8 is: 。
in this embodiment, the chip model of the functional chip U9 is: 。
the above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and modifications, equivalent substitutions or improvements made within the technical scope of the present utility model should be included in the scope of the present utility model.
Claims (6)
1. The utility model provides ase:Sub>A power adapter automatic switch-over circuit, its characterized in that, including function chip U6, function chip U5, function chip U7, function chip U8, first interface USB-A, second interface USB-L and PMOS pipe Q3, function chip U5 with function chip U7's input is connected power supply end V+ respectively, function chip U5's output connect in function chip U6, PMOS pipe Q3's grid connect in function chip U6, PMOS pipe Q3's source electrode connect in power supply end V+1, PMOS pipe Q3's drain electrode connect in first interface USB-A's positive pole, function chip U8 connect in function chip U7 with between the second interface USB-L, function chip U8's control end LINK connect in function chip U6.
2. The automatic switching circuit of a power adapter according to claim 1, comprising a functional chip U9, a third interface USB-C and a PMOS transistor Q4, wherein a source electrode of the PMOS transistor Q4 is connected to the functional chip U6, a drain electrode of the PMOS transistor Q4 is connected to an anode of the third interface USB-C, and a gate electrode of the PMOS transistor Q4 is connected to the functional chip U9.
3. The automatic switching circuit of a power adapter according to claim 2, comprising a diode D5, wherein an anode of the diode D5 is connected to a source of the PMOS transistor Q4, and a cathode of the diode D5 is connected to the functional chip U9.
4. The power adapter automatic switching circuit as set forth in claim 1, wherein ase:Sub>A datase:Sub>A port of the first interface USB-ase:Sub>A is connected to the functional chip U6.
5. The power adapter automatic switching circuit as set forth in claim 1, wherein a data port of the third interface USB-C is connected to the functional chip U6.
6. The power adapter automatic switching circuit as set forth in claim 1, wherein the data port of the second interface USB-L is connected to a functional chip U8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321157198.5U CN220754368U (en) | 2023-05-15 | 2023-05-15 | Automatic switching circuit of power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321157198.5U CN220754368U (en) | 2023-05-15 | 2023-05-15 | Automatic switching circuit of power adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220754368U true CN220754368U (en) | 2024-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321157198.5U Active CN220754368U (en) | 2023-05-15 | 2023-05-15 | Automatic switching circuit of power adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220754368U (en) |
-
2023
- 2023-05-15 CN CN202321157198.5U patent/CN220754368U/en active Active
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