Coilcraft announced its new PoE120PL Series of high-efficiency planar transformers which are optimized for active clamp forward converters, including use in Power over Ethernet PSE and pre-standard PD ...

1000W, 220v/120v step-down transformer.. how much power is wasted leaving it turned on with no load? (i.e. nothing plugged in)<BR><BR>My own rationale was that only one side of the windings is ...