Title :
Steady-State Analysis and Design of Class-DE Inverter at Any Duty Ratio
Author :
Sekiya, Hiroo ; Xiuqin Wei ; Nagashima, Tomoharu ; Kazimierczuk, Marian K.
Author_Institution :
Grad. Sch. of Adv. Integration Sci., Chiba Univ., Chiba, Japan
Abstract :
This paper presents a steady-state analysis and design equations for the class-DE inverters at any duty ratio and high loaded quality factor, taking into account nonlinear MOSFET drain-source and gate-drain parasitic capacitances with any grading coefficients of the diode junctions. Additionally, maximum operating frequency, power output capability, and power-conversion efficiency of the class-DE inverter are also obtained. It is shown that the maximum operating frequency is the highest when the switch-on duty ratio is 0.25. From the obtained results, it can be stated that the switch-on duty ratio of the class-DE inverter should be specified in the range of 0.25 ≤ D <; 0.5.
Keywords :
MOSFET; invertors; class-DE inverter design equation; diode junction grading coefficients; gate-drain parasitic capacitances; high loaded quality factor; maximum operating frequency; nonlinear MOSFET drain-source capacitances; power output capability; power-conversion efficiency; steady-state analysis; switch-on duty ratio; Capacitance; Inverters; Logic gates; MOSFET; Resonant frequency; Switches; Zero voltage switching; Class-DE inverter; MOSFET nonlinear parasitic capacitance; class-E zero-voltage switching(ZVS)/zero-derivative switching (ZDS) condition; high efficiency; junction grading coefficient; maximum operating frequency; switch-on duty ratio;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2014.2339355
