Creative Solutions For Complex Specifications

Electronic Craftsmen has been designing and building Switch Mode Power Supplies for over 20 years. Understanding SMPS fundamentals is critical in optimizing transformer design to achieve:

  • Smaller Size - Cooler Operation - Lower Losses
  • Appropriate topology
  • Optimal materials – frequency dependent

Example Types of Switch Mode Transformers

  • Switching Converter
  • Flyback
  • Forward Converter
  • Push-Pull
  • Full Bridge
  • High Current
  • Buck - Boost
  • Surface Mount - Planer

Recent Work

Reliable, Innovative Designs

Custom built for your application, assembled with care and precision.

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Switch Mode / High Frequency / Ferrite Custom Transformer Capabilities at Electronic Craftsmen

  • Power: From mW to 200kVA @ 20kHz (typical)
  • Working Voltage up to 12kV (depending on frequency); multiple stages possible for higher outputs
  • Frequency: To 500kHz (typical)
  • Temperature Class to 220C (155C / Class F typical)
  • Weight: 0.06 oz / 1g to 550 lbs / 250kg
  • Multiple taps as required
  • Dielectric Strength (hipot) to 30kVac or 20kVdc
  • Parts can be vacuum varnished or molded with a variety of hard or soft encapsulant materials with
    thermal conductivity.
  • Wire sizes from 1-45 AWG or Copper Foil to 0.050in thick (in multiple layers for higher current); Litz
    wire for higher frequency
  • Regulation to specification
  • Manufactured using all known state-of-the-art magnetic core materials, including but not limited to
    electrical grade steel laminations, ferrites & powdered iron, nickel-iron alloy, iron amorphous
    metal strip-wound cores, nanocrystalline cores and small toroids.
  • Antifungal and non-nutrient coatings available
  • Corrosion resistant coatings & platings available
  • Standard or custom terminations & leads
  • Mounting Configurations: pcb-mount (horizontal or vertical), custom or standard brackets or stacked
  • Designed to meet CSA & UL (safety) or MIL PRF 27 (aerospace / military) requirements upon request
  • MIL PRF 27 Grade 5 & 6 encapsulation available