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SD card protection system, method and protection circuit for multiple card slots in one connector

A protection system and connector technology, applied to emergency protection circuit devices, emergency protection circuit devices, telephone connectors, etc. for limiting overcurrent/overvoltage, which can solve problems such as short circuit risks, and solve the problem of card burning or damage. The effect of the motherboard

Active Publication Date: 2021-09-17
重庆蓝岸科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This power-off processing takes milliseconds, or even hundreds of milliseconds. Of course, it is no problem to use it on a single card, but it is used in the case of combining multiple card slots. It ranges from microseconds to milliseconds, and there is a risk of short circuit if the power is not turned off in time

Method used

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  • SD card protection system, method and protection circuit for multiple card slots in one connector
  • SD card protection system, method and protection circuit for multiple card slots in one connector
  • SD card protection system, method and protection circuit for multiple card slots in one connector

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0028] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or elem...

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Abstract

The invention discloses an SD card protection system, terminal equipment, an SD card protection method, a protection circuit for a connector with multiple card slots in one, and a connector with multiple card slots in one. The SD card protection system includes a multi-slot connector, a switch unit, a charge discharge unit, a detection unit, and a controller; the switch unit is connected in series to the power supply line of the SD card power pin of the connector; the charge discharge unit It is connected with the SD card power supply pin of the connector; the detection unit is used to detect the insertion and removal status of the card tray. The controller receives and obtains the insertion and removal status of the card tray according to the output information of the detection unit. When the card tray is inserted, the charge discharge unit is turned off, and the switch unit is turned on. When the card tray is pulled out, the control switch unit is turned off and turned on. The charge discharge unit discharges the charge on the SD card power pin of the connector, and through the scheduling of the controller, it is guaranteed from the system level that no matter whether the card tray is plugged or unplugged, the motherboard and the card will not be burned.

Description

technical field [0001] The invention relates to the field of hot plug protection, in particular to an SD card protection system, a terminal device, an SD card protection method, a protection circuit for a connector with multiple card slots in one, and a connector with multiple card slots in one. Background technique [0002] Most of the old mobile phone designs have independent SIM card slots and SD card slots. Because this design is an independent card slot, there will be no security risk. The only disadvantage is that it takes up a lot of space on the mobile phone. As the functions of smart phones become more and more powerful, and at the same time, the requirements of thinner and lighter have to be taken into account, the space for mobile phone architecture is becoming more and more tight. Therefore, a multi-card slot-in-one connector with a card tray solution has emerged. Multi-card slots in one connector, compatible with one or two SIM cards and SD cards inserted throug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/3816H02H3/00H02H9/04H01R12/71H01R27/00
CPCH01R12/714H01R27/00H01R2201/16H02H3/00H02H9/047H04B1/3816
Inventor 陈新银
Owner 重庆蓝岸科技股份有限公司
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