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Power supply control device and method for USB-C interface device

A power control device, USB-C technology, applied in measuring devices, data processing power supplies, electrical digital data processing, etc., can solve problems such as excessive display current, burnout, and failure to work normally, so as to reduce risks and improve user experience Effect

Active Publication Date: 2019-11-12
SHENZHEN GREEN CONNECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking the current of the power supply provided by the USB-C interface as 1.5A as an example, when the load of the USB-C interface exceeds the current of 1.5A, it will cause the USB-C interface peripherals connected to the computer to fail to work normally. It will show that the current is too large, the TYPE-C device cannot be used, and it will burn the laptop if it is serious
For this reason, in the prior art, the fixed current limiting technology is used to prevent the notebook computer from burning out, that is, the overcurrent protection device adopts the PTC (Positive Temperature Coefficient positive temperature coefficient) mode, generally a thermistor with a positive temperature coefficient, but in practice There are great limitations in the application, if the set current is too large, the risk of burning the computer will be increased, if the set current is too small, the load power will become smaller, the maximum power of the peripherals will be reduced, and the user experience will be deteriorated.

Method used

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  • Power supply control device and method for USB-C interface device
  • Power supply control device and method for USB-C interface device
  • Power supply control device and method for USB-C interface device

Examples

Experimental program
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Embodiment 1

[0076] Please refer to figure 1 , is a structural schematic diagram of a power control device for USB-C interface devices in implementation, including a control module 10 , a USB-C interface 20 , an external power interface 30 , a switching module 40 and a power adjustment module 50 . The USB-C interface 20 is used for connecting with the computer USB-C interface. The external power supply interface 30 is used for inputting external power supply. The switching module 40 is connected with the USB-C interface 20 and the external power supply interface 30 respectively, and is used to connect the power supply and the external power supply of the USB-C interface of the computer through the USB-C interface 20 and the external power supply interface 30 respectively, and connect the computer USB- C interface power supply or external power supply output. The power adjustment module 50 is connected with the switching module 40, and is used to adjust the power of the computer USB-C int...

Embodiment 2

[0099] Please refer to Figure 11 , which is a structural diagram of a computer USB-C interface peripheral device in another embodiment. The computer USB-C interface peripheral device includes a microprocessor 100, a USB-C male head 200, a USB-C female head 300, and a voltage regulator Circuit 410 , current adjustment circuit 420 , discharge circuit 500 and switching circuit 600 . The microprocessor 100 is respectively connected with the USB-C male connector 200 , the USB-C female connector 300 , the current adjustment circuit 420 , the discharge circuit 500 and the switching circuit 600 . The USB-C female head 300 is used for the input of the external power supply, the USB-C male head 200 is used for connecting with the USB-C interface 900 of the computer, and the switching circuit 600 is respectively connected with the USB-C female head 300 and the USB-C male head 200, It is used to connect to the power supply of the USB-C interface of the computer and the external power su...

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PUM

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Abstract

The invention discloses a power supply control device and method for a USB-C interface device. The device comprises a USB-C interface, an external power supply interface, a switching module, a power supply adjusting module and a control module. Whether a power supply is connected into the USB-C interface and the external power supply interface or not is detected through the control module, the power supply connected into the USB-C interface and the external power supply interface is switched through the switching module, and then the current of the connected power supply is adjusted through the power supply adjusting module according to different power supply input ends. Since the USB-C interface device can adjust the power supply current according to different power supply input ends, theUSB-C interface device can automatically control the magnitude of the USB output current to reduce the risk of self-adaptive output current, thereby improving the user experience.

Description

technical field [0001] The invention relates to the technical field of power control of USB-C interface devices, in particular to a power control device and method for USB-C interface devices. Background technique [0002] At present, the current of the power supply provided by the USB-C interface of the notebook computer on the mainstream market is 1.5A or the current of the power supply provided by the USB-C interface with Thunderbolt 3 function is 3A. Taking the current of the power supply provided by the USB-C interface as 1.5A as an example, when the load of the USB-C interface exceeds the current of 1.5A, it will cause the USB-C interface peripherals connected to the computer to fail to work normally. It will show that the current is too large, the TYPE-C device cannot be used, and it will burn the laptop if it is serious. For this reason, in the prior art, the fixed current limiting technology is used to prevent the notebook computer from burning out, that is, the ov...

Claims

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Application Information

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IPC IPC(8): G06F1/26G06F13/38
CPCG06F1/266G06F13/385G06F2213/0042Y02D10/00
Inventor 张清森陈俊灵肖政文
Owner SHENZHEN GREEN CONNECTION TECH CO LTD