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Usb interface protection circuit, method, adapter and electronic device

A USB interface and protection circuit technology, applied in the electronic field, can solve problems such as USB interface burnout, and achieve the effect of preventing burnout

Active Publication Date: 2022-03-18
ONEPLUS TECH SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The application provides a USB interface protection circuit, method, adapter and electronic equipment, which can quickly and effectively solve the problem of burning the USB interface of the equipment

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  • Usb interface protection circuit, method, adapter and electronic device
  • Usb interface protection circuit, method, adapter and electronic device
  • Usb interface protection circuit, method, adapter and electronic device

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Embodiment Construction

[0039] In order to facilitate the understanding of the present application, and to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth to facilitate a full understanding of the application, and preferred embodiments of the application are shown in the accompanying drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the application more thorough and comprehensive. The present application can be implemented in many other ways that are different from those described here, and those skilled in the art can make similar improvements wi...

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Abstract

The application relates to a USB interface protection circuit, method, adapter and electronic equipment, including a first temperature acquisition module, a second temperature acquisition module, a processing module and a switch module; The temperature information of the interface, and the temperature information of the USB interface is transmitted to the processing module as the first temperature information; the second temperature acquisition module is used to collect the ambient temperature information, and the ambient temperature information is transmitted to the processing module as the second temperature information; processing The modules are respectively connected to the first temperature acquisition module and the second temperature acquisition module, and are used to output control signals according to the first temperature information and the second temperature information; the switch module is connected to the processing module, and are used to control the on-off of the power supply path according to the control signals . By jointly controlling the on-off of the power supply path through the first temperature information and the second temperature information, the USB interface can be accurately and timely protected when the temperature of the USB interface is high, and the USB interface can be effectively prevented from being burned.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a USB interface protection circuit, method, adapter and electronic equipment. Background technique [0002] Currently, a universal serial bus (Universal Serial Bus, USB) interface is used as a charging and data interface in a mobile device. A USB interface generally includes a power supply pin (VBUS), two data pins (D+, D-) and a ground pin GND. Due to the structure of the USB interface, the interface is dirty and liquid enters during long-term use. If an adapter is connected at this time, a micro-short circuit will be formed between the USB interface VBUS and GND, causing the USB interface to heat up and burn. [0003] In order to solve the above problems, most manufacturers add protection measures to the USB cable end at present. For example, a positive temperature coefficient (positive temperature coefficient, PTC) element is connected in series close to the power supply...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H5/04
CPCH02H5/042
Inventor 于扎根贺才强
Owner ONEPLUS TECH SHENZHEN
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