A TOPOLOGY CIRCUIT OF A SOFT SWITCH

摘要

The invention relates to a topology circuit of a soft switch. The main switch can be turned on at zero voltage by using a resonance between a resonant inductor and a capacitor. Moreover the voltage drop will be applied to the resonant inductor when the main switch is turned off, so that the auxiliary feeding device corresponding to the auxiliary switch will not output any energy when the auxiliary switch is turned on, therefore the auxiliary switch can be turned on at zero current and operation efficiency of the circuit can be increased.