Time-coordinated Non-arcing Breaking Operation of Reed Switches for Higher Current

摘要

At the 50th IEEE Holm conference, we proposed a method for suppressing arc ignition in mechanical contact devices using a transient current switch and a capacitor. We applied the method to conventional reed switches. For the electric circuit analysis, we clarified the momentary voltage-current characteristics at the reed switch breaking operation by FEM analysis. We were able to estimate the non-arc ignition breaking condition using SPICE simulation. It was experimentally confirmed with the capacitor of 9.4 μF for 24V/15A breaking operation.