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    A Modified Three-Level Soft-Switching DC-DC Full-Bridge Converter
    (2018-11-27)
    Sanajit, Narongrit
    ;
    Jangwanitlert, Anuwat
    This paper aims to present a modified three-level full-bridge dc-dc converter that can operate under soft-switching conditions for all switches in the circuit. There are 2 branches of three-level half-bridge inverter. The auxiliary inductances are used in the circuit in order to confirm the zero-voltage switching condition (ZVS) for all switches for wide load ranges. Moreover, the dc blocking capacitor is used for obtaining the zero-current switching condition (ZCS) for inner switches in the circuit. The proposed circuit was designed, analyzed and simulated at 2.56 kW of output power, 540 V of input voltage, 510 V of output voltage at 60° of phase shift angle and 50 kHz of switching frequency to confirm the possibility of the proposed theory.
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    A series-resonant half-bridge inverter for induction-iron appliances
    (2011-12-01)
    Sanajit, N.
    ;
    Jangwanitlert, A.
    This paper presents a series-resonant half-bridge inverter for induction iron appliances. The series-resonant inverter is implemented to provide Zero Current Switching (ZCS) for all the switches at turn off conditions and Zero Voltage Switching (ZVS) at diode turn on. The main features of the proposed inverter are simple PWM control strategy and high efficiency. The operation mode of the inverter will be evaluated corresponding to the duty cycle of the switch. The experimental results verify the advantages of the proposed topology. © 2011 IEEE.