Parça Numarası: TPS23731
Araç/yazılım:
Hi Diang,
what is the "boost" used for in the daisy chain circuit? Can we give the voltage from the Ethernet port (RJ45) directly to the input of the PSE?
Thank you.
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Parça Numarası: TPS23731
Araç/yazılım:
Hi Diang,
what is the "boost" used for in the daisy chain circuit? Can we give the voltage from the Ethernet port (RJ45) directly to the input of the PSE?
Thank you.
Hi Servan,
Since the PSE output voltage needs to be high enough to pass the compliance. For example Type-3 PSE needs 50V - 57V port voltage. But if the PD before has a long cable the bus voltage may drop below this range. In this case, a boost converter is needed to make sure the desired port voltage can meet.
Best regards,
Diang