Inhaltsangabe: Abstract: The report describes the building of a simple resonant converter with a series resonant circuit as load. This work is a subject in the field of power electronics. The report includes a complete describtion of the analytical fundamentals of a DC/AC converter with a resonant circuit as load. Modern semiconductor devices like IGBTs, MBGTs, MOSFETs, Thyristors, ... are also tested for a succesfull using in converter circuits...