Identification circuit for power sourcing equipment, and powered device

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United States of America Patent

PATENT NO 9501117
APP PUB NO 20150046728A1
SERIAL NO

14521911

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Abstract

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An electronic detection circuit for detecting a power level provided by a power sourcing device to a powered device in a Power over Ethernet (POE) system, the electronic detection circuit comprising a power input end, a power output end, a charge retention module configured to generate a control voltage from the input voltage, a load module configured to draw power at a test power level from the power sourcing device, a connection switch, and an overload detection module connected to receive the input voltage to detect whether the input voltage has dropped to zero during the test period.

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Patent Owner(s)

  • HUAWEI TECHNOLOGIES CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Deng, Zhiji Shenzhen, CN 17 14
Ma, Zheng Shenzhen, CN 35 111

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