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Card holder anti-static circuit and electronic equipment

An anti-static, card holder technology, applied in electrical components, transmission systems, etc., can solve problems such as abnormality and damage of electronic equipment

Inactive Publication Date: 2018-06-15
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides an anti-static circuit and electronic equipment for a deck to solve the problem that some static electricity will still be transmitted to the CPU in the existing anti-static structure, resulting in abnormalities or even damage to the electronic equipment.

Method used

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  • Card holder anti-static circuit and electronic equipment
  • Card holder anti-static circuit and electronic equipment

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Embodiment Construction

[0014] 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.

[0015] An embodiment of the present invention discloses an anti-static circuit for a deck, combining figure 1 , figure 2 shown, including:

[0016] Deck; processor, a communication connection line and a detection circuit L are provided between the deck, wherein each of the communication connection lines is connected in parallel with a grounded switch circuit, and the control terminal of the switch circuit is connected to the Processor control interf...

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PUM

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Abstract

The invention provides a card holder anti-static circuit and electronic equipment. The circuit comprises a card holder and a processor, wherein communication connection circuits and a detection circuit are arranged between the processor and the card holder, each communication connection circuit is connected with a switch circuit that is earthed in parallel, and the control end of the switch circuit is connected with a control interface of the processor; when the processor detects that the card holder is switched between a card state and a non-card state via the detection circuit, the processoroutputs a drive signal to the switch circuit, to control the switch circuit to be switched between a turned-off state and a turned-on state, so that static electricity is prevented from being transmitted to a CPU via each communication connection circuit, and the situation that the abnormal or damage phenomena that the CPU shuts down or crashes caused by insertion or removal of a card are avoidedis ensured.

Description

technical field [0001] The invention relates to the field of electronic devices, in particular to an anti-static circuit of a deck and electronic equipment. Background technique [0002] In daily life, electronic devices with card insertion functions such as mobile phones need to insert and pull out the card, such as SIM (Subscriber Identification Module, user identification) card and TF card (Trans-flashCard, portable memory card) ). [0003] Since the components of these cards include plastic and pads, during the process of inserting and removing the card, when the plastic part of the card rubs against the gold finger (pad) of the card holder in the mobile phone, static electricity will be generated, and the static electricity can pass through the card and the CPU. The communication connection line between the mobile phones is transmitted to the CPU of the mobile phone, causing problems such as crash, restart or damage of the mobile phone. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/3818H04B1/3816
CPCH04B1/3818H04B1/3816
Inventor 郑乐平
Owner VIVO MOBILE COMM CO LTD