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“Once a valid PD has been detected and powered, the PSE uses the maintain power signature (MPS) to
determine when to remove power from the PI. The PSE removes power from that output port if it detects loss of
MPS for 300 ms or more. A valid MPS requires the PD to draw at least 10 mA and also have an ac impedance
less than 26.25 kΩ in parallel with 0.05 μF. TI's reference designs meet the requirements necessary to maintain
power”这个要求吗？还要求26.25kOHM和0.05uF什么意思？
“Once a valid PD has been detected and powered, the PSE uses the maintain power signature (MPS) to
determine when to remove power from the PI. The PSE removes power from that output port if it detects loss of
MPS for 300 ms or more. A valid MPS requires the PD to draw at least 10 mA and also have an ac impedance
less than 26.25 kΩ in parallel with 0.05 μF. TI's reference designs meet the requirements necessary to maintain
power”要求26.25kOHM和0.05uF什么意思？需要怎么处理吗？
