Phase Controlled Class E Amplifier Characteristics for Pulsing Applications

Phase controlled Class E amplifiers for high-power plasma pulsing applications are analyzed and their characteristics for pulsing applications are simulated and measured. Harmonic modeling is used to design the phase controlled Class E type amplifiers for plasma pulsing applications, and analytical, simulation, and experimental results are presented. The parameters that affect pulsing characteristics of the phase-controlled Class E amplifiers, including power capacity and thermal characteristics using die dissipation versus pulse frequency are given. Safe operating area of the active devices used in amplifier is simulated and tested for reliable operation. Phase controlled Class E amplifier capacity for ON/OFF pulsing, and 2-level nonzero pulsing for matched and mismatch loads for various cases have been investigated, and critical RF envelope pulsing parameters, such as rise time, fall time, settling time have been studied extensively. Analytical, simulated, and experimental results have been compared and close agreement has been seen.