Payton Introduces Line of Low Profile Resonant Transformers with Extended Ferrites for Improved Cooling Under 8mm

The low profile restriction for components needed in the flat screen industry has challenged Payton Planar Magnetics to develop a standard line of under 8mm height transformers for natural cooling. The 200W (55 x 40 x 8mm) transformer is designed for a resonant half bridge operation.

Payton can design the low profile transformers for many switch mode topologies with operating frequencies of over 200khz. The input voltage is 400V with over 3000Vrms isolation and full 8mm creepage and clearance. The total power losses are under 3.8W with 40°C temperature rise with no additional cooling. The efficiency of this magnetic is in the 98% range. The parts can be used without a heatsink.