In my master thesis I design and built a wireless power transfer capable low power switching power supply. The aim of this power supply is charging mobile phones.
I present the buck, the buck-boost and the flyback konverter topologies because I used these circuits in my main circuit topology. I also present various snubber circuits and the improved two transistor flyback topology.
After the theoretical overview, i show the design steps of the hardver parameters which are based on the specification. I show the flyback converter main circuits elements design. I present the flyback transformer design and build steps. I design various snubber circuits for the flyback converter. I present the two transistor flyback design steps. I explain the main design aspects of the printed circuit board based on the finished circuit design.
I explain the circuit activation process with the occuring problems and the solutions for them. Finally i make an efficeny measurement on the working module.
I evaluate my work and recommend some methods for future improvements.