Analysis of, and load-independence in, parallel-tuned class E amplifiers with finite DC-feed inductance

Gandhi, Saumya; Zulinski, R.E.; Mandojana, J.C.

doi:10.1109/mwscas.1992.271038

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…Prior to the authors' related conference publication on this topic [34] there has been some theoretical work on design of Class E inverters that are insensitive to load variations (e.g., [16,[20][21][22]). However, the results are complex, making design insight difficult, and some of these methods tend to lead to designs that have very high circulating currents, which hurts efficiency.…”

Section: Introductionmentioning

confidence: 99%

Design of Single-Switch Inverters for Variable Resistance/Load Modulation Operation

Rosłaniec

Jurkov

Bastami

2015

IEEE Trans. Power Electron.

129

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Abstract-Single-switch inverters such as the conventional class E inverter are often highly load sensitive, and maintain zero-voltage switching over only a narrow range of load resistances. This paper introduces a design methodology that enables rapid synthesis of class E and related single-switch inverters that maintain ZVS operation over a wide range of resistive loads. We treat the design of Class-E inverters for variable resistance operation and show how the proposed methodology relates to circuit transformations on traditional class E designs. We also illustrate the use of this transformation approach to realize  2 inverters for variable-resistance operation.The proposed methodology is demonstrated and experimentally validated at 27.12 MHz in a class E and  2 inverter designs that operate efficiently over 12:1 load resistance range for an 8:1 and 10:1 variation in output power respectively and a 25 W peak output power.

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