An embodiment of a coupled-inductor structure includes a core and a conductor. The core includes first and second members, and spaced-apart forms extending between the members, and the conductor is partially wound about one of the forms. Because the conductor is only partially wound about a form of the core, the conductor may be shorter, wider, or both shorter and wider, and thus may have a smaller resistance, than a conductor that forms a winding of a conventional coupled-inductor structure. Consequently, a coupled-inductor structure incorporating one or more of such partially wound conductors may consume less power and generate less heat than a conventional coupled-inductor structure for given winding currents and voltages.