Experience


Roger has designed power electronics for the aerospace, avionics, and commercial industries. His design work has included developing requirements, choosing the correct power system, completing the related trade studies, analysis and simulation, and testing the design to ensure the design meets all the specifications.

Summary of Switching Power Supply Experience

  • 10Vdc - 80Vdc 28Vdc Typical
  • 50Vdc - 120Vdc 80Vdc Typical
  • 80Vdc - 127Vdc 120Vdc Typical
  • 250Vdc – 280Vdc 270 Typical
  • 85VAC – 280VAC
  • 5W - 100W fly back
  • 100W Push-pull, Forward
  • 200W Boost
  • 600W ZVT Buck
  • 1300W Half Bridge
  • 3000W Resent
  • 2.5V to 180V
  • Transformers
    • Power
    • Current
    • MOSFET Gate Drive
  • Inductors
    • Input filter
    • Output filter, coupled and single
    • Common Mode
  • Voltage Mode
  • Current Mode
  • Power Factor Correction Controller
  • Synchronize rectifiers Controller
  • PSpice
  • Saber
  • Mentor Graphics
  • MathCad
  • Maple
Juno orbiting Jupiter             Artist's rendering of Juno orbiting Jupiter (Image: NASA/JPL-Caltech)