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Sine Wave Amplitude Modulation Concept for Linear Behaviour of Phase Modulated Resonant Converters

Ferreira, C. ; Borges, B.

IEEE Transactions on Industrial Electronics Vol. 60, Nº 5, pp. 2074 - accepted, May, 2013.

ISSN (print): 0278-0046
ISSN (online): 0278-0046

Scimago Journal Ranking: 2,21 (in 2013)

Digital Object Identifier: 10.1109/TIE.2012.2228137

This paper focuses on a DC-AC resonant power converter using a special sine wave amplitude modulation concept with the objective of achieving a linear input-output behavior, low harmonic content at the output, and reduced stages number. This technique can be applied to a wide range of resonant converters’ applications. Sine wave generation techniques and phase modulation methods limitations are analyzed. Alternative solutions, such as a new pre-distorted phase modulator, are developed. A prototype was designed and implemented. Presented experimental results demonstrate the effectiveness of the presented principle.