Double magnetizing coil Buck circuit
Gang Liu · 2005
Aiming at the problem that the core in unidirectional magnetization Buck circuit can not fully be utilized,a method to enlarge the dynamic variation range of magnetic induction intensity in Buck circuit was proposed,in which a two-direction(ZD) magnetic exciting mode is used.In addition,the voltage proliferation and ratio of the circuit which is driven alternately and computing formula of critical inductance were discussed.And some experimental results at on-off frequency of 3.3 kHz shows that magnetic electrical currents decrease from 0.33 A to 0.11 A.