Design of class-E inverter with inductive impedance inverter for achieving zero voltage switching at any load resistance
Tomoharu Nagashima, Xiuqin Wei, Tadashi Suetsugu, and Hiroo Sekiya
IEICE Technical Committee on Nonlinear Problems, vol.113, no.69, pp.71-75, May, 2013. [pdf document]

<Abstract>

This paper presents a design of the class-E inverter with an inductive impedance inverter for achieving zero voltage switching (ZVS) at any load resistance. There is a region of load-resistance values that the class-E inverter can not achieve ZVS. For achieving ZVS at any load resistance, the class-E inverter with an inductive impedance inverter was proposed. However, there is a region of load-resistance values that the inverter designed by using previous design method can not achieve ZVS. In this paper, a design of the inverter for achieving ZVS at any load resistance is presented by applying the analytical expressions of the class-E inverter outside nominal operation, which can express the inverter operations against wide parameter variations. By carrying out PSpice simulations and circuit experiments, the validity of the design can be shown.