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Surge protection device, method and mobile terminal

A technology for surge protection and mobile terminals, which is applied in the electronic field to achieve the effects of ensuring data transmission rate, improving anti-surge performance, and improving anti-surge capability

Active Publication Date: 2019-07-26
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a surge protection device, method and mobile terminal to solve the problem of how to improve the surge resistance performance of the mobile terminal on the basis of ensuring the data transmission rate of the signal port of the mobile terminal

Method used

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  • Surge protection device, method and mobile terminal
  • Surge protection device, method and mobile terminal
  • Surge protection device, method and mobile terminal

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] An embodiment of the present invention provides a surge protection device, which can be applied in a mobile terminal, and improves the anti-surge capability of the mobile terminal on the basis of ensuring a high data transmission rate of a USB interface of the mobile terminal. Wherein, the above-mentioned mobile terminal may be a mobile phone, a tablet computer, and the like.

[0029] figure 1 A structural schematic diagram of a surge protectio...

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Abstract

The embodiment of the invention discloses a surge protection device and method and a mobile terminal. The device comprises a processor, a switch, a first transient diode and a second transient diode,wherein a capacitance value of the first transient diode is larger than that of the second transient diode, the switch is connected with the processor and a first universal series bus (USB) interfaceof the mobile terminal, and the processor is used for controlling the switch to be connected with the second transient diode when the first USB interface is in a signal transmission state so that thefirst USB interface and the second transient diode are connected in parallel, and controlling the switch to be connected with the first transient diode when the first USB interface is not in a signaltransmission state so that the first USB interface and the first transient diode are connected in parallel. With the device disclosed by the embodiment of the invention, data transmission rate of themobile terminal can be ensured, and the surge resistant capability of the mobile terminal also can be improved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a surge protection device, method and mobile terminal. Background technique [0002] Currently, a mobile terminal uses a Universal Serial Bus (Universal Serial Bus, USB) interface to charge the mobile terminal. However, when using the USB interface on the mobile terminal to connect to the USB interface of the charger to charge the mobile terminal, due to the poor stability of the grid power supply system, when a high-power electric tool is started near the charging place, the nearby power supply support and, due to the inductance effect of the inductance device in the internal circuit of the mobile terminal, a high-voltage surge impact will also be generated in the mobile terminal when it is inserted into the charger; in addition, if the user uses a defective charger, the surge It will have a greater impact on the mobile terminal, thus causing damage to the integrated circui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H9/04
CPCH02H9/041
Inventor 肖石文刘彦彬
Owner VIVO MOBILE COMM CO LTD
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