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This paper presents a high efficiency zero current switching (ZCS) switched-capacitor (SC) dc-dc converter for high current high voltage gain TEG application. Compared with the traditional hard switching switched-capacitor circuits, the proposed circuit achieves ZCS for all the switches, thus minimizing the switching loss and EMI noise. The electrolytic capacitor present in the hard switching circuit...
In this paper, different kinds of driving methods for synchronous rectifier (SR) are compared, and a self-biased current driven circuit for SR is proposed. The circuit uses a current transformer (CT) to generate driving signal, as well as provide the driving power. With a capacitor to produce bias voltage, this circuit can be used without considering the location of SR and the output voltage of converter...
This paper presents a novel resonant dc-dc converter using Z-source impedance network. The conventional series resonant converter suffers from efficiency degradation problem when the input voltage range is wide because the switching frequency of converter should be increased far away from resonant frequency to control output voltage. The proposed Z-source resonant dc-dc converter can minimize switching...
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