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Switch-mode transformers

General information

The use of switched-mode power supplies has become necessary in latest years as the only resource available to reduce weight and volume, to increase efficiency and to reduce thermal dissipation in portable battery-fed equipment and wherever it is necessary to get powers to some hundreds of watts (traditional linear power packs to 10W).

F.E.EM. produces transformers for low power switch-mode supplies designed to its customers' specifications according standard configurations and well-established methodologies which ensure the quality of the final result.

Technical characteristics

Switch-mode transformers

  • Technical characteristics:
  • Transformers for flyback, forward and push-pull circuits, suitable for use in low power switching feeders.
  • Bespoke implementation according to client specifications
  • Cores: ETD 34/17/11 - 39/20/13 - 44/22/15 - 49/25/19 - 54/28/19
  • Copper wire, Litze wire, furukawa or copper strip winding
  • Nomex or Kapton insulation
  • Compact size
  • Operative temperature 0°C + 85°C or extended
  • Capacity of use at frequency range up to 500 kHz
  • Low inductive loss
  • Power up to 200/500 W
  • Terminal or CS connections
  • Products comply with standards EN 60742 and EN 60950 and the RoHS directive
  • Rigorous technical and visual checks performed on all products

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Switching transformers Switching transformers