CN219304500U - Mobile phone charging circuit and mobile phone equipment - Google Patents
Mobile phone charging circuit and mobile phone equipment Download PDFInfo
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- CN219304500U CN219304500U CN202223422718.9U CN202223422718U CN219304500U CN 219304500 U CN219304500 U CN 219304500U CN 202223422718 U CN202223422718 U CN 202223422718U CN 219304500 U CN219304500 U CN 219304500U
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Abstract
The application provides a mobile phone charging circuit and mobile phone equipment, mobile phone charging circuit includes: the device comprises a processing chip, a power management module, a USB connector, a switch module and a charging IC module; the power management module comprises a first end and a second end, and the switch module comprises a first end, a second end and a driving end; the first end of the power management module is connected with the processing chip, and the second end of the power management module is connected with the USB connector; the first end of the switch module is connected with the USB connector, the second end of the switch module is connected with the charging IC module, the driving end of the switch module is connected with the processing chip, and the processing chip controls the conduction state of the first end of the switch module and the second end of the switch module. The method and the device can reduce the cost of the charging circuit of the mobile phone.
Description
Technical Field
The application relates to the technical field of charging of mobile phone equipment, in particular to a mobile phone charging circuit and mobile phone equipment.
Background
At present, some power management modules of mobile phones have a charging function, so that the power management modules have a protocol conflict with an external quick charging IC, and in order to solve the protocol conflict between the power management modules and the external quick charging IC, a high-speed dual-channel single-pole double-throw analog switch module is directly connected with the external charging IC module, and a connection object is selected from the power management modules of the mobile phones and the charging IC modules of the mobile phones through the high-speed dual-channel single-pole double-throw analog switch module, so that the protocol conflict between the power management modules and the external quick charging IC is avoided. However, the high-speed dual-channel single-pole double-throw analog switch module has the defect of high cost due to the fact that the charging circuit of the mobile phone has high cost.
Disclosure of Invention
The purpose of the application is to overcome the defects and shortcomings in the prior art, and provide a mobile phone charging circuit and mobile phone equipment, which can reduce the cost of the charging circuit of the mobile phone.
A first aspect of an embodiment of the present application provides a mobile phone charging circuit, including: the device comprises a processing chip, a power management module, a USB connector, a switch module and a charging IC module; the power management module comprises a first end and a second end, and the switch module comprises a first end, a second end and a driving end;
the first end of the power management module is connected with the processing chip, and the second end of the power management module is connected with the USB connector; the first end of the switch module is connected with the USB connector, the second end of the switch module is connected with the charging IC module, the driving end of the switch module is connected with the processing chip, and the processing chip controls the conduction state of the first end of the switch module and the second end of the switch module.
A second aspect of an embodiment of the present application provides a mobile phone device, including: the mobile phone charging circuit comprises a processing chip, a power management module, a USB connector, a switch module and a charging IC module; the power management module comprises a first end and a second end, and the switch module comprises a first end, a second end and a driving end;
the first end of the power management module is connected with the processing chip, and the second end of the power management module is connected with the USB connector; the first end of the switch module is connected with the USB connector, the second end of the switch module is connected with the charging IC module, the driving end of the switch module is connected with the processing chip, and the processing chip controls the conduction state of the first end of the switch module and the second end of the switch module.
Compared with the related art, the mobile phone charging circuit controls the connection relation between the charging IC module and the USB connector by controlling the conduction state of the switch module through the CPU, when the CPU controls the switch module to be conducted, the charging IC module is smoothly connected with the USB connector, the charging IC module supplies power for the USB connector, and at the moment, the voltage of the charging IC module is not lower than that of the power management module, so that the charging IC module cannot generate a phenomenon of current backflow, the power management module has high impedance, and the current output by the charging IC module can be prevented from being transmitted to the power management module, so that the charging IC module can smoothly supply power for the USB connector; when the CPU controls the switch module to be disconnected, the charging IC module is disconnected with the USB connector, the power management module is connected with the USB connector, and at the moment, the power management module supplies power for the USB connector. The method does not need to adopt a high-speed double-channel single-pole double-throw analog switch module, but adopts a switch module controlled by a processing chip to control the connection state of the charging IC module and the USB connector, so that the circuit cost can be reduced.
In order that the present application may be more clearly understood, specific embodiments thereof will be described below with reference to the accompanying drawings.
Drawings
Fig. 1 is a circuit diagram of a mobile phone charging circuit according to an embodiment of the present application.
Fig. 2 is a circuit diagram of a switch module according to one embodiment of the present application.
Fig. 3 is a circuit diagram of a mobile phone device according to an embodiment of the present application.
100. A mobile phone charging circuit; 101. a processing chip; 102. a power management module; 103. a USB connector; 104. a switch module; 105. a charging IC module; 1. a mobile phone device.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1, which is a circuit diagram of a mobile phone charging circuit 100 according to an embodiment of the present application, a first embodiment of the present application provides a mobile phone charging circuit 100, including: a processing chip 101, a power management module 102, a USB connector 103, a switch module 104, and a charging IC module 105; wherein the power management module 102 includes a first end and a second end, and the switch module 104 includes a first end, a second end, and a driving end;
wherein, a first end of the power management module 102 is connected with the processing chip 101, and a second end of the power management module 102 is connected with the USB connector 103; the first end of the switch module 104 is connected with the USB connector 103, the second end of the switch module 104 is connected with the charging IC module 105, the driving end of the switch module 104 is connected with the processing chip, and the processing chip controls the on state of the first end of the switch module 104 and the second end of the switch module 104.
The switch module 104 refers to a chip that can be controlled to be in a conductive state by the processing chip 101, and the model thereof is not limited, for example, the model of the switch module 104 may be the SD106.
Compared with the related art, the mobile phone charging circuit 100 controls the connection relation between the charging IC module 105 and the USB connector 103 by controlling the on state of the switch module 104 through the CPU, when the CPU controls the switch module 104 to be on, the charging IC module 105 is smoothly connected with the USB connector 103, the charging IC module 105 supplies power for the USB connector 103, and at the moment, the charging IC module 105 cannot generate a phenomenon of current backflow because the voltage of the charging IC module 105 is not lower than the voltage of the power management module 102, and the power management module 102 has high impedance, so that the current output by the charging IC module 105 can be prevented from being transmitted to the power management module 102, and the charging IC module 105 can smoothly supply power for the USB connector 103; when the CPU controls the switching module 104 to be disconnected, the charging IC module 105 is disconnected from the USB connector 103, and the power management module 102 is connected to the USB connector 103, and the power management module 102 supplies power to the USB connector 103. The connection state of the charging IC module 105 and the USB connector 103 is controlled by the switch module 104 controlled by the processing chip 101 with lower cost instead of the high-speed double-channel single-pole double-throw analog switch module 104, so that the circuit cost can be reduced.
In one possible embodiment, the driving end of the switch module 104 is connected to a first end of a first resistor, and a second end of the first resistor is grounded; when the processing chip outputs a high-level signal to the driving end of the switch module 104, the first end of the switch module 104 and the second end of the switch module 104 are turned on, and when the processing chip stops outputting the high-level signal to the driving end of the switch module 104, the driving end of the switch module 104 is grounded via the first resistor, the driving end of the switch module 104 obtains a low-level signal, and the first end of the switch module 104 and the second end of the switch module 104 are turned off.
Referring to fig. 2, the driving end of the switch module 104 includes switch logic control pins IN1 and IN2, IN1 and IN2 are connected to the first end of the first resistor, and the processing chip 101 is connected to IN1 and IN 2.
In this embodiment, when the processing chip stops outputting the high-level signal to the driving end of the switch module 104, the driving end of the switch module 104 is grounded via the first resistor, the driving end of the switch module 104 obtains the low-level signal, and the first end of the switch module 104 and the second end of the switch module 104 are disconnected; when the processing chip outputs a high level signal to the driving end of the switch module 104, the first end of the switch module 104 and the second end of the switch module 104 are turned on. The low level signal may be output without the processing chip being required to turn on the first end of the switch module 104 and the second end of the switch module 104, so as to save power resources.
In a possible embodiment, the power management module 102 is configured to identify a fast-charging protocol of a connection object of the USB connector 103, and if the USB connector 103 supports the fast-charging protocol, the power management module 102 transmits a first signal to the processing chip 101, and the processing chip 101 outputs a high-level signal to the driving end of the switch module 104; if the USB connector 103 does not support the fast-charging protocol, the power management module 102 transmits a second signal to the processing chip 101, and stops outputting a high-level signal to the driving end of the switch module 104.
In this embodiment, the power management module 102 is configured to perform fast charging protocol identification on the connection object of the USB connector 103, and then feed back the identification result to the processing chip 101 through signal transmission, where the processing chip 101 determines whether to output a high-level signal to the driving end of the switch module 104 according to the identification result, so that the on state of the switch module 104 can be controlled according to the protocol identification result.
In one possible embodiment, the first end of the switch module 104 includes a first common end and a second common end, and the second end of the switch module 104 includes a first open end and a second open end;
when the processing chip 101 outputs a high-level signal to the driving end of the switch module 104, the first common end and the second common end are conducted with the first normally open end and the second normally open end; when the processing chip stops outputting the high-level signal to the driving end of the switch module 104, the driving end of the switch module 104 obtains the low-level signal, and the first common end and the second common end are disconnected from the first normally open end and the second normally open end.
In this embodiment, the connection states of the USB connector 103 and the charging IC module 105 may be controlled by controlling the conductive states of the first common terminal, the second common terminal, the first normal terminal, and the second normal terminal according to whether the processing chip 101 outputs a high level signal to the driving terminal of the switching module 104.
In one possible embodiment, when the processing chip outputs a high level signal to the driving end of the switch module 104, the first end of the switch module 104 and the second end of the switch module 104 are turned on, and when the processing chip outputs a low level signal to the driving end of the switch module 104, the first end of the switch module 104 and the second end of the switch module 104 are turned off.
In this embodiment, the conduction condition of the first end of the switch module 104 and the second end of the switch module 104 may be controlled according to the high level signal and the low level signal output by the processing chip.
In a possible embodiment, the power management module 102 is configured to identify a fast-charging protocol of a connection object of the USB connector 103, and if the USB connector 103 supports the fast-charging protocol, the power management module 102 transmits a first signal to the processing chip 101, and the processing chip 101 outputs a high-level signal to the driving end of the switch module 104; if the USB connector 103 does not support the fast-charging protocol, the power management module 102 transmits a second signal to the processing chip 101, and the processing chip 101 outputs a low-level signal to the driving end of the switch module 104.
In this embodiment, the power management module 102 is configured to perform fast charging protocol identification on the connection object of the USB connector 103, and then feed back the identification result to the processing chip 101 through signal transmission, where the processing chip 101 determines to output a high level signal or a low level signal to the driving end of the switch module 104 according to the identification result, so that the on state of the switch module 104 can be controlled according to the protocol identification result.
In one possible embodiment, the first end of the switch module 104 includes a first common end and a second common end, and the second end of the switch module 104 includes a first open end and a second open end;
when the processing chip 101 outputs a high-level signal to the driving end of the switch module 104, the first common end and the second common end are conducted with the first normally open end and the second normally open end; when the processing chip 101 outputs a low level signal to the driving end of the switch module 104, the first common terminal and the second common terminal are disconnected from the first normally open terminal and the second normally open terminal.
In this embodiment, the connection states of the USB connector 103 and the charging IC module 105 may be controlled by controlling the conductive states of the first common terminal and the second common terminal with the first common terminal and the second common terminal according to the high level signal or the low level signal output from the processing chip 101 to the driving terminal of the switching module 104.
Referring to fig. 3, a second embodiment of the present application provides a mobile phone apparatus 1, including: a mobile phone charging circuit 100, wherein the mobile phone charging circuit 100 comprises a processing chip 101, a power management module 102, a USB connector 103, a switch module 104 and a charging IC module 105; wherein the power management module 102 includes a first end and a second end, and the switch module 104 includes a first end, a second end, and a driving end;
wherein, a first end of the power management module 102 is connected with the processing chip 101, and a second end of the power management module 102 is connected with the USB connector 103; the first end of the switch module 104 is connected with the USB connector 103, the second end of the switch module 104 is connected with the charging IC module 105, the driving end of the switch module 104 is connected with the processing chip, and the processing chip controls the on state of the first end of the switch module 104 and the second end of the switch module 104.
It should be noted that, in the mobile phone device 1 provided in the second embodiment of the present application, only the above-mentioned division of each functional module is illustrated, and in practical application, the above-mentioned functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to perform all or part of the functions described above. In addition, the mobile phone device 1 provided in the second embodiment of the present application and the mobile phone charging circuit 100 in the first embodiment of the present application belong to the same concept, which embody detailed implementation procedures in the method embodiment, and are not described herein again.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.
Claims (10)
1. A mobile phone charging circuit, comprising: the device comprises a processing chip, a power management module, a USB connector, a switch module and a charging IC module; the power management module comprises a first end and a second end, and the switch module comprises a first end, a second end and a driving end;
the first end of the power management module is connected with the processing chip, and the second end of the power management module is connected with the USB connector; the first end of the switch module is connected with the USB connector, the second end of the switch module is connected with the charging IC module, the driving end of the switch module is connected with the processing chip, and the processing chip controls the conduction state of the first end of the switch module and the second end of the switch module.
2. The mobile phone charging circuit of claim 1, wherein: the driving end of the switch module is connected with the first end of the first resistor, and the second end of the first resistor is grounded; when the processing chip outputs a high-level signal to the driving end of the switch module, the first end of the switch module is conducted with the second end of the switch module, and when the processing chip stops outputting the high-level signal to the driving end of the switch module, the driving end of the switch module is grounded through the first resistor, the driving end of the switch module obtains a low-level signal, and the first end of the switch module is disconnected with the second end of the switch module.
3. The mobile phone charging circuit of claim 2, wherein: the power management module is used for identifying a quick charge protocol of a connection object of the USB connector, and if the USB connector supports the quick charge protocol, the power management module transmits a first signal to the processing chip, and the processing chip outputs a high-level signal to the driving end of the switch module; if the USB connector does not support the fast charging protocol, the power management module transmits a second signal to the processing chip, and the power management module stops outputting a high-level signal to the driving end of the switch module.
4. A mobile phone charging circuit according to claim 2 or 3, wherein: the first end of the switch module comprises a first common end and a second common end, and the second end of the switch module comprises a first normal open end and a second normal open end;
when the processing chip outputs a high-level signal to the driving end of the switch module, the first public end and the second public end are communicated with the first normally open end and the second normally open end; when the processing chip stops outputting the high-level signal to the driving end of the switch module, the driving end of the switch module obtains the low-level signal, and the first public end and the second public end are disconnected with the first normally open end and the second normally open end.
5. The mobile phone charging circuit of claim 1, wherein: when the processing chip outputs a high-level signal to the driving end of the switch module, the first end of the switch module and the second end of the switch module are conducted, and when the processing chip outputs a low-level signal to the driving end of the switch module, the first end of the switch module and the second end of the switch module are disconnected.
6. The mobile phone charging circuit of claim 5, wherein: the power management module is used for identifying a quick charge protocol of a connection object of the USB connector, and if the USB connector supports the quick charge protocol, the power management module transmits a first signal to the processing chip, and the processing chip outputs a high-level signal to the driving end of the switch module; if the USB connector does not support the fast charging protocol, the power management module transmits a second signal to the processing chip, and the processing chip outputs a low-level signal to the driving end of the switch module.
7. The mobile phone charging circuit of claim 5 or 6, wherein: the first end of the switch module comprises a first common end and a second common end, and the second end of the switch module comprises a first normal open end and a second normal open end;
when the processing chip outputs a high-level signal to the driving end of the switch module, the first public end and the second public end are communicated with the first normally open end and the second normally open end; when the processing chip outputs a low-level signal to the driving end of the switch module, the first public end and the second public end are disconnected with the first normally open end and the second normally open end.
8. A mobile phone device, comprising: the mobile phone charging circuit comprises a processing chip, a power management module, a USB connector, a switch module and a charging IC module; the power management module comprises a first end and a second end, and the switch module comprises a first end, a second end and a driving end;
the first end of the power management module is connected with the processing chip, and the second end of the power management module is connected with the USB connector; the first end of the switch module is connected with the USB connector, the second end of the switch module is connected with the charging IC module, the driving end of the switch module is connected with the processing chip, and the processing chip controls the conduction state of the first end of the switch module and the second end of the switch module.
9. The mobile device of claim 8, wherein: the driving end of the switch module is connected with the first end of the first resistor, and the second end of the first resistor is grounded; when the processing chip outputs a high-level signal to the driving end of the switch module, the first end of the switch module is conducted with the second end of the switch module, and when the processing chip stops outputting the high-level signal to the driving end of the switch module, the driving end of the switch module is grounded through the first resistor, the driving end of the switch module obtains a low-level signal, and the first end of the switch module is disconnected with the second end of the switch module.
10. The mobile device of claim 8, wherein: when the processing chip outputs a high-level signal to the driving end of the switch module, the first end of the switch module and the second end of the switch module are conducted, and when the processing chip outputs a low-level signal to the driving end of the switch module, the first end of the switch module and the second end of the switch module are disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223422718.9U CN219304500U (en) | 2022-12-16 | 2022-12-16 | Mobile phone charging circuit and mobile phone equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223422718.9U CN219304500U (en) | 2022-12-16 | 2022-12-16 | Mobile phone charging circuit and mobile phone equipment |
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| Publication Number | Publication Date |
|---|---|
| CN219304500U true CN219304500U (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223422718.9U Active CN219304500U (en) | 2022-12-16 | 2022-12-16 | Mobile phone charging circuit and mobile phone equipment |
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| Country | Link |
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| CN (1) | CN219304500U (en) |
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- 2022-12-16 CN CN202223422718.9U patent/CN219304500U/en active Active
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