Printed solenoid windings for miniature electromagnetic devices

In order to facilitate the fabrication of miniature windings, it is propose d to print the conductor paths side by side on a tape which would be wound around the magnetic core. One-section winding must have a special form and needs connection of separa te paths at its ends. These interconnections could be avoided in two-sectio n symmetric magnetic circuits where printed winding with spiral conductor p aths could be used. The use of printed solenoid windings is illustrated on the example of a 4 x 4 x 2.5 mm(3) transformer.