Analysis and design of generalized class-E rectifier <Abstract> This paper presents a semi-analytical expression of the generalized class-E rectifier. Effect of low output-filter inductance is included in the theoretical formula presented in this paper. The harmonic components are considered in the current flowing through the outputfilter inductance. For obtaining the theoretical waveforms, the coefficients of each frequency component are obtained by numerical calculations. By using the semi-analytical expression, characteristics of the class-E rectifier can be comprehended in a theoretical manner. By varying the output-filter inductance, it is possible to improve the rectifier characteristics, such as larger power output capability and zero input reactance, compared with the traditional class-E rectifiers. This paper also presents two examples of designs and implementations of resonant converters with the class-E rectifier. The validity of the semi-analytical expression and design strategies were confirmed from the quantitative agreements with experimental and PSpice simulation results. |