DC to DC converter An example might be the soldering iron 24V or charging battery pack for aeromodelling, or even power a laptop. Described converter is able without special transformer (and just plain Air coil with inductance of about... Electronics Projects, 12V to 30V TL497 DC DC Converter Circuit (20v-30v adjustable) "dc dc converter circuit, power electronic projects, " Date 2019/08/04