Summary

  • In a new video, engineer Sam Ben-Yaakov shows how to prevent a transformer’s coils from sparking and frying by using a reluctance-based magnetic circuit to channel flux in a different way to normal, breaking the usual rules.
  • By using a simple free leg and a switched winding, the setup ensures that shorting the output doesn’t result in a spike in current, making it useful for developing safer high-voltage applications.
  • Ben-Yaakov shows simulations of a 10V input yielding a surprising 6mv output when shorted, demonstrating the effectiveness of this engineering quirk.
  • This unusual circuit could offer a simpler and safer way of managing high-voltage applications in the future.

By Heidi Ulrich

Original Article