MAGNETIC MATERIAL BIASING METHOD AND APPARATUS

摘要

A transformer apparatus including a magnetic core (2) and a main winding (N1) is characterized in that an auxiliary winding (N2) is added in operative relation to the magnetic core (2), whereby a predetermined amount of demagnetizing current, which will reduce the magnetic flux caused by the main winding (N1) by a predetermined amount, is caused to flow through the auxiliary winding (N2) in synchronism with an increase in the magnetic flux caused by the main winding (N1) to prevent the magnetic saturation of the magnetic core (2) during the time that the magnetic flux caused by the main winding (N1) is increasing.