Everyone likes to play with high voltages, right?. Even though the danger of death goes up with every volt, it’s likely that a few readers will have at some time or other made fancy long sparks.

Sick of raiding old TVs and CRT monitors for flyback transformers to feed your high-voltage addiction? Never fear; if you’re careful, a 3D-printed flyback might be just the thing you’re looking for.

To save energy and reduce the size and weight of equipment, higher efficiency and power density are required in flyback converter-based LED drivers, chargers, and other power applications. The flyback ...