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A new soft switching converter is presented for medium power applications. Two full-bridge converters are connected in series at high voltage side in order to limit the voltage stress of power switches at Vin/2. Therefore, power MOSFETs with 600V voltage rating can be adopted for 1200V input voltage applications. In order to balance two input split capacitor voltages in every switching cycle, two...
This paper presents a new DC/DC converter for high input voltage and high load current applications. In order to adopt low voltage rating power devices in high voltage applications, two split capacitors with four active switches are used in the primary side to reduce the voltage stress of power switches at Vin/2. Two flying capacitances are used in order to automatically balance two split capacitor...
This paper presents a parallel resonant converter for high input voltage applications. In order to reduce the voltage stress of active switches, two half-bridge converters are connected in series at high voltage side. Flying capacitor is adopted between two series half-bridge converters to automatically balance two input capacitor voltages. Pulse frequency modulation scheme is adopted to regulate...
This paper presents the system analysis, design consideration and implementation of a Zero Voltage Switching (ZVS) DC-DC converter with series connected transformers. The buck-type converter with active snubber circuit is proposed in order to limit voltage stress on power switch and to achieve ZVS turn-on. The ZVS turn-on of switches is implemented in the transition interval of two complementary switches...
This paper presents the system analysis, design consideration and implementation of a Zero Voltage Switching (ZVS) DC-DC converter with series connected transformers. The buck-type converter with active snubber circuit is proposed in order to limit voltage stress on power switch and to achieve ZVS turn-on. The ZVS turn-on of switches is implemented in the transition interval of two complementary switches...
In this paper, an interleaved zero-voltage switching (ZVS) coupled-inductors buck converter with active-clamp circuits is study. Compared with passive-clamp circuits, the active-clamp circuits in the interleaved buck converter provided can have benefits of recycling the leakage energy, while minimum ringing voltage is across the active switches. Moreover, since both main and auxiliary switches can...
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