Tool/software:
I’m working on a boost circuit for PoE type II PSE (30W). The following parameters are required:
Vin: 12V-24V
Vout: 52V, 0.6A
The Webench designed it using a 97µH(21.56mΩ) inductor, which is pretty large.
>> What is the reason for that requirement? Is it required for small current ripple?
I considered changing the requirement for supporting two cases:
Case 1 (PoE type II PSE, 30W):
Vin: 24V
Vout: 52V, 0.6A
Case 2 (PoE type I PSE, 15.4W):
Vin: 12V
Vout: 52V, 0.3A
Webench requires a 15µH(80mΩ) inductor for the first case, and a 12µH(70mΩ) inductor for the second one.
It seems a 15µH(80mΩ) can be good for the two options, but the values of the compensation components are different.
>> Which compensation parameters of the two cases is it better to use (to support both)?
