The theoretical efficiency of the class E frequency multiplier with arbitrary output can reach 100% by controlling phase current to satisfy ZVS/ZVDS condition. It is necessary select appropriate value shunt capacitance for satisfying these two conditions. In general, transistor consists linear external and nonlinear parasitic capacitance. Therefore, conventional design method treating as purely...

This paper presents an analysis and modeling of the class-E inverter for ZVS/ZVDS execution at any duty ratio. The methodology is to determine input current analytically under assumption that it always remains positive. latter ensured by proper selection inductance such operates either in (1) border condition mode or (2) continuous conduction regardless ripple. Using this applying boundary cond...

a new output structure for class e power amplifier (pa) is proposed in this paper. a series lc resonator circuit, tuned near the second harmonic of the operating frequency is added to the output circuit. this resonator causes low impedance at the second harmonic. the output circuit is designed to shape the switch voltage of the class e amplifier and lower the voltage stress of the transistor. t...

A new output structure for class E power amplifier (PA) is proposed in this paper. A series LC resonator circuit, tuned near the second harmonic of the operating frequency is added to the output circuit. This resonator causes low impedance at the second harmonic. The output circuit is designed to shape the switch voltage of the class E amplifier and lower the voltage stress of the transistor. T...

In this paper, the analysis and design method for suboptimum Class- $\text{E}_{\mathrm {M}}/\text{F}_{3}$ inverter (i.e., only zero-voltage switching (ZVS), zero-voltage-derivative (ZVDS), zero-current (ZCS) conditions are satisfied) ...

This article presents the analysis and design of a Class- $\text{E}_{\mathrm {M}}/\text{F}_{\mathrm {n}}$ power amplifier (PA). The high peak switch voltage factor classical {M}}$ PA is reduced by 27.3% through adoption notation="LaTe...

A new output structure for class E power amplifier (PA) is proposed in this paper. A series LC resonator circuit, tuned near the second harmonic of the operating frequency is added to the output circuit. This resonator causes low impedance at the second harmonic. The output circuit is designed to shape the switch voltage of the class E amplifier and lower the voltage stress of the transistor. T...

In this paper, a high frequency contactless power transfer (CPT) system is designed with ∅2 inverter drive. This system works in 30MHz frequency and 380W power with low voltage stress and considers the inductive link parasitic capacitor effect. In the design, we formulated the inverter equations first and then suggested another design for the transmitter and the receiver coils as the energy tra...