Electric cars outsold those with internal combustion engines (ICE) in the early 1900s but twenty years later, they had all but disappeared. Now, in response to high gas prices and mandated emission and fuel performance standards, they’re coming back. Some of them are manufactured by automakers and some are conversions from an ICE car to electric vehicles, but in any vehicle with a higher battery voltage than traditional vehicles, DC-DC conversion is an integral part of automotive power electronics.