13.56MHz Current Source Inverter Based on Immittance Conversion Topology

Abstract

This paper proposes a novel 13.56MHz current source high frequency inverter based on immittance conversion topology. One of the most distinctive characteristics of immittance conversion topology is that the voltage source is converted into the current source and vice versa. Some components contained in rectangular waveform are converted by utilizing immittance conversion element of distributed constant line type. When the operation frequency of the voltage source inverter is set to 4.52MHz, the voltage source with third harmonic frequency on the voltage source inverter, 13.56MHz component, is converted to the current source by the effect of immittance conversion element with the length λ/4. By utilizing these principles, 13.56MHz current source high frequency inverter is derived. The experimental results from a prototype system verify the theoretical procedure.