Abstract
ABSTRACTIn this paper, the effects of the DC input voltage source on the class-EM power amplifier design and specifications at 4 MHz operating frequency are investigated. The most important parameters of the class-EM power amplifier are the output power, output power capability, maximum voltage and current of the MOSFETs and power conversion efficiency which are all dependent on the input DC power supply. In this paper, IRFZ24N and IRF510 transistors have been used for the presented designs. The measured efficiency and output power at DC source voltage of the main circuit equal to 12 V for the proposed class-EM power amplifier with IRFZ24N are 96.2% and 21.78 W, respectively. The measured results for IRFZ24N are consistent with simulation and analysis results.
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