Aero-electromagnetic　(AEM)　is　a　geophysical　exploration　technology　that　uses　aircraft　platform　to　carry　electromagnetic　exploration　equipment,　which　has　the　advantages　of　wide　detection　range,　high　efficiency　and　economy.　In　this　paper,　the　design　and　modal　analysis　of　the　main　circuit　topologies,　such　as　the　aviation　electromagnetic　multi-pulse　transmitting　circuit　with　large　magnetic　moment　and　the　phase-shifting　full-bridge　soft　switching　circuit,　are　carried　out　to　improve　the　power　density　and　transmitting　power　of　the　transmitting　system,　realize　the　multi-pulse　transmitting　with　large　magnetic　moment,　and　effectively　improve　the　detection　depth　and　accuracy.　©　COPYRIGHT　SPIE.　Downloading　of　the　abstract　is　permitted　for　personal　use　only.