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Charging chip, charging device and mobile terminal

A charging chip and charging device technology, which is applied to battery circuit devices, circuit devices, electric vehicles, etc., can solve the problems of occupying a processor universal asynchronous transceiver bus interface, increasing production costs, and level conversion circuit occupying circuit board area, etc. Achieve the effect of reducing resource overhead and the number of traces, reducing costs, and saving circuit board area

Active Publication Date: 2021-06-29
SHANGHAI TRANSSION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the process of conceiving and implementing this application, the inventor found at least the following problems: in the above implementation, the level conversion circuit not only occupies the area of ​​the circuit board, increases the production cost, but also occupies the general asynchronous transceiver bus interface of the processor. For example, if the interface resources of the processor are insufficient, the communication with the power adapter cannot be carried out, and fast charging cannot be realized.

Method used

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  • Charging chip, charging device and mobile terminal
  • Charging chip, charging device and mobile terminal
  • Charging chip, charging device and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0037] figure 2 It is a schematic structural diagram of the charging device provided in Embodiment 1 of the present application. The charging device of the present application is set in the mobile terminal and is used to charge the rechargeable battery of the mobile terminal, such as figure 2 As shown, the first interface and the second interface of this embodiment are represented by S11 and S12 respectively. The charging device of the present application includes: a charging chip 101 and a processor 102;

[0038] The charging chip 101 includes a first interface and a second interface;

[0039] The charging chip 101 communicates with the processor 102 through the first interface;

[0040] The charging chip 101 communicates with the power adapter through the second interface, and the second interface is a Universal Asynchronous Receiver Receiver Bus (UART) interface.

[0041] Optionally, the second interface of the charging chip 101 adopts 3.3V CMOS level or 5V TTL level. ...

no. 2 example

[0059] image 3 It is a schematic structural diagram of the charging device provided in Embodiment 2 of the present application. Such as image 3 As shown, S21, S22, S23, S24, and S25 represent the first interface, the second interface, the third interface, the fourth interface, and the charging interface of the mobile terminal in this embodiment respectively. The charging device of the present application includes: a charging chip 201. Processor 202;

[0060] The charging chip 201 includes a first interface and a second interface;

[0061] The processor 202 includes a third interface and a fourth interface;

[0062] The first interface of the charging chip 201 is connected to the third interface of the processor 202 .

[0063] Wherein, the second interface of the charging chip 201 is a universal asynchronous transceiver bus interface.

[0064] Optionally, the second interface of the charging chip 201 is connected to the charging interface of the mobile terminal, and is c...

no. 3 example

[0076] Figure 4 It is a schematic structural diagram of the charging device provided in Embodiment 3 of the present application. Such as Figure 4 As shown, the first interface, the second interface, the third interface, the fourth interface, and the charging interface of the mobile terminal are represented by S31, S32, S33, S34, and S35 respectively. The charging device of the present application includes: a charging chip 301. Processor 302;

[0077] The charging chip 301 includes a first interface and a second interface;

[0078] The processor 302 includes a third interface and a fourth interface;

[0079] The first interface of the charging chip 301 is connected to the third interface of the processor 302;

[0080] Wherein, the second interface of the charging chip 301 is a universal asynchronous transceiver bus interface.

[0081] Optionally, the processor 302 obtains and identifies the type of the external device connected to the charging interface of the mobile ter...

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Abstract

The invention relates to a charging chip, a charging device and a mobile terminal. The charging chip comprises a first interface and a second interface. The first interface is used for communicating with a processor; the second interface is used for communicating with a power adapter, wherein the second interface is a universal asynchronous transceiver bus interface; the charging device is arranged in the mobile terminal, is used for charging a rechargeable battery of the mobile terminal, and comprises a charging chip and a processor, and the mobile terminal comprises a charging chip. According to the charging chip, the charging device and the mobile terminal provided by the invention, the circuit board area occupied by the level conversion circuit and the universal asynchronous receiving and transmitting bus interface of the processor are saved by integrating the universal asynchronous receiving and transmitting bus interface in the charging chip, so that the resource overhead and the wiring number are effectively reduced, and the cost is reduced.

Description

technical field [0001] The present application relates to the technical field of charging, in particular to a charging chip, a charging device and a mobile terminal. Background technique [0002] In general implementation, there are two main communication methods between the smart terminal and the power adapter: one is to communicate through the charging confirmation signal of the Type-C USB interface. In this communication mode, both the smart terminal and the power adapter need to use the Type-C USB interface, or Use a non-standard interface; the second is to communicate through the differential signal (D+, D-) of the USB interface. This communication method does not require the USB interface. The power adapter can use a standard A-type USB interface or a C-type For the USB interface, the smart terminal side can use a micro-USB interface or a type-C USB interface, and the data cable is also universal. [0003] Fast charging needs to realize the communication between the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H04L12/02H04B3/02
CPCH02J7/00032
Inventor 张建志窦永清贾佩红
Owner SHANGHAI TRANSSION CO LTD
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