Unlock instant, AI-driven research and patent intelligence for your innovation.

Switching circuit and terminal device

A technology for switching circuits and equipment, which is applied in electrical digital data processing, instruments, etc., can solve problems such as high cost and complex structure, and achieve the effect of low cost and simple structure

Pending Publication Date: 2019-06-14
SHENZHEN GRANDSUN ELECTRONICS CO LTD
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a switching circuit and a terminal device, aiming to solve the problem that in the traditional technical solution, Bluetooth needs two USB interfaces to simultaneously realize the functions of external charging and online upgrade, and the structure is complex and the cost is relatively high.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Switching circuit and terminal device
  • Switching circuit and terminal device
  • Switching circuit and terminal device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Such as figure 1 As shown, this embodiment provides a schematic structural diagram of a switching circuit 100 , which includes: a USB interface module 10 , a switching control module 20 , a charging module 30 and a ROM Bluetooth module 40 .

[0051] The connection relationship of the 100 modules of the switching circuit provided in this embodiment is:

[0052] The first input and output terminals of the USB interface module 10 are connected to external terminal equipment, the second input and output terminals of the USB interface module 10 are connected to the first input and output terminals of the switching control module 20, and the switching control module 20 The second input and output terminal is connected to the ROM Bluetooth module 40, the input terminal of the charging module 30 is connected to the ROM Bluetooth module 40, and the output terminal of the charging module 30 is connected to the input terminal of the switching control module 20;

[0053] The switc...

Embodiment 2

[0062] Such as figure 2 As shown, in this embodiment, the circuit diagram of the USB interface module 10 in the first embodiment.

[0063] Such as figure 2 As shown, in this embodiment, the USB interface module includes a USB interface unit 11, and the first input and output terminals and the second input and output terminals of the USB interface unit 11 are respectively connected to the first input and output terminals and the first input and output terminals of the USB interface module 10. One-to-one correspondence between the second input and output terminals;

[0064] The working principle of the USB interface module 10 provided by the embodiment of the present invention is:

[0065] When the second input and output terminals of the USB interface unit 11 and the output terminals of the charging module 30 are connected through the switching control module 20, the external terminal equipment is connected through the first input and output terminals of the USB interface m...

Embodiment 3

[0085] Such as image 3 As shown, in this embodiment, the switching control module 20 in the first embodiment includes a switching control unit 21, and the first input and output terminals, the second input and output terminals and the input terminals of the switching control unit 21 are connected with the switching control module 20 respectively. There is a one-to-one correspondence between the first input and output terminals, the second input and output terminals and the input terminals.

[0086] The working principle of the switching control unit 21 provided in this embodiment is as follows:

[0087] The switching control unit 21 connects the connection between the second input and output terminals of the USB interface module 10 and the output terminal of the charging module 30 according to the first switching control signal output by the ROM bluetooth module 40;

[0088] The switching control unit 21 connects the second input and output terminals of the USB interface mod...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention is applicable to the technical field of Bluetooth, and provides a switching circuit and a terminal device. The switching circuit comprises a USB interface module, a switching control module and a charging module. According to the switching circuit provided by the invention, when an external charging function needs to be realized, connection between the USB interface module and the charging module is switched on through the switching control module, and the external terminal equipment is charged through the USB interface module. When an online upgrading function needs to be realized, the USB interface module and the ROM Bluetooth module are connected through the switching control module, and the upgrading data are inputted through the USB interface module to upgrade the ROM Bluetooth module, so that the online upgrading and the external charging functions can be achieved at the same time only through one USB interface module, the structure is simple, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of bluetooth, in particular to a switching circuit and terminal equipment. Background technique [0002] With the development of bluetooth technology, bluetooth is used in more and more aspects, with various effects. [0003] The external charging function of Bluetooth is generally realized by connecting the charging port through a USB interface. The Bluetooth online upgrade needs to be connected to the power supply through another USB interface, and enter the Bluetooth online upgrade mode to perform online upgrade work. Bluetooth simultaneously realizes two functions of external charging and online upgrade. Then two USB interfaces are needed, the structure is complicated and the cost is relatively high. Contents of the invention [0004] The purpose of the present invention is to provide a switching circuit and a terminal device, aiming to solve the problem that Bluetooth needs two USB interfaces to real...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
Inventor 李华海吴海全郭世文师瑞文
Owner SHENZHEN GRANDSUN ELECTRONICS CO LTD