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The voltage source driver is widely used in a conventional drive circuit of PFC converter, where the fixed parameters of drive circuit couldn't optimize the switching loss of power switches. In view of this problem, one adaptive turn-off method of power switch for PFC converter is proposed, in which the turn-off current could be regulated adaptively with the input voltage changed periodically. The...
The voltage source driver (VSD) is widely used in a conventional gate drive circuit of the power factor correction (PFC) converter. However, the fixed drive current of the VSD circuit could not optimize the switching losses, and the turn-off voltage spike across the power switch is freewill. In this letter, a real-time variable turn-off current strategy of a power switch for the PFC converter is presented...
This paper presents a dual-buck full-bridge inverter (DBFBI) with the sinusoidal pulse width modulation (SPWM) and single current sensor. Shoot-through problem does not exist. All the power devices and filter inductors operate at each half line cycle, thus the efficiency can be increased. Only one switch works at high frequency when the reference current and the output voltage have the same polarity,...
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