Learn why a 1:1 gate drive transformer can still cause amplitude loss, pulse droop, slow edges, and ringing—and how to troubleshoot magnetics and the gate loop.
PoE power delivery grew from 15W (802.3af) to 90W (802.3bt) in 15 years. How each standard generation changed transformer core size, winding, saturation margin, and isolation requirements.
Transformer DCR is listed as "reference only" on most datasheets, but it quietly costs you 5-10% efficiency in high-current designs. When it matters, how to calculate the real cost, and how to spec it properly.
Compare planar vs wirewound transformers: height, leakage inductance, thermal performance, current density, and cost. Real selection criteria for engineers.
