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sinara-hw / Thermostat

2-channel temperature controller
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low losses PoE #95

Closed gkasprow closed 3 years ago

gkasprow commented 3 years ago

There are higher efficiency PoE modules available. They have the same pinout. We can use them to limit losses.

jordens commented 3 years ago

At that point the rectifier diodes will limit efficiency as well.

gkasprow commented 3 years ago

sure, but they work at 50V so the losses are much lower than the existing PoE module where the output rectification diode works at 12V

jordens commented 3 years ago

Ah, yes. I miscounted the zeros. We loose about 2% in the diodes.

gkasprow commented 3 years ago

The difference between AG5300 and AG5400 is that the latter uses the synchronous rectification

gkasprow commented 3 years ago

The fan solves issues with PoE, I'm not sure if it's worth replacing the PoE module. New issues may appear.