| Title |
A New Zero-Voltage-Switching PWM Converters with Zero-Current-Switched Auxiliary Switch |
| Keywords |
ZVS-PWM converter ; Soft switching ; Resonant switch ; Auxiliary switch ; Auxiliary diode |
| Abstract |
In conventional Zero-Voltage-Transition(ZVT) PWM converters, zero-voltage turn-on and turn-off for main switch without increasing voltage/current stresses is achieved at a fixed frequency. The switching loss, stress, and noise, however, can't be minimized because they adopt auxiliary switches turned off under hard-switching condition. In this paper, new ZVS-PWM converters of which both active and passive switches are always operating with soft-switching condition are proposed. Therefore, the proposed ZVS-PWM converters are most suitable for avionics applications requiring high-power density. Breadboarded ZVS-PWM boost converters using power MOSFET are constructed to verify theoretical analysis. |