Device for testing voltage and impedance between SD card interface and SD card

The utility model discloses a device for testing voltage and impedance between an SD card interface and an SD card, which comprises a base line board, the base line board is connected with a power supply module, an upper computer module and a signal switching module, the signal switching module is c...

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Bibliographic Details
Main Authors XIAO HONGYUAN, HUANG ZHENBO, WANG QIXIANG
Format Patent
LanguageChinese
English
Published 18.04.2023
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The utility model discloses a device for testing voltage and impedance between an SD card interface and an SD card, which comprises a base line board, the base line board is connected with a power supply module, an upper computer module and a signal switching module, the signal switching module is connected with a testing machine, and the testing machine is connected with the upper computer module. A power supply module, an MCU module, a transistor array, a second PIN needle, a current source module and a programmable read-only memory are electrically connected to the base line board, an AD voltage acquisition module and a switching circuit module are connected between the second PIN needle and the MCU module, the power supply module is connected with a mobile power supply, and the mobile power supply is connected with an IC chip. According to the device for testing the voltage and impedance between the SD card interface and the SD card, a novel small-size and low-cost testing technology is adopted, the speed
Bibliography:Application Number: CN202223042379U