Complex resonant type converter with the control of switching frequency by self oscillated type (2)

摘要

Complex resonant type switching converter circuit, which has voltage resonant circuits in its owl primary side and also in secondary side, enables extremely high efficiency in power conversion. We have developed this complex resonant converter circuit with self oscillated type and the control of switching frequncy by control winding current control. The constant volt age control of output voltage is made from that pulse width modulation control of primary or secondary transistor. In this paper, by comparison with usual oscillator anti drive circuit, the outputcharacteristics and AC-DC efficiency of this complex resonant type converter were reported.