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Convention Paper

Study and Evaluation of MOSFET Rds(ON)-Impedance Efficiency Losses in High Power Multilevel DCI-NPC Amplifiers

Authors: Sala, Vicent; Ruiz, German; Romeral, Luis

AES Convention 128 · Paper 7996 · May 2010

Abstract

This work justifies the usefulness of multilevel Powe Amplifiers with DCI-NPC (Diode Clamped Inverter – Neutral Point Converter) topology in applications where size and weight needs was optimized. These Amplifiers can work at high frequencies thereby reduces the size and weight of the filter elements. However, it is necessary to study, analyze and evaluate the efficiency losses because this amplifier has double number of switching elements. This paper models the behavior of the MOSFET Rds(ON) in a DCI-NPC topology for different conditions.

Details

Published in
AES Convention 128
AES Convention
128
Paper number
7996
Publication date
May 6, 2010
Session subject
Audio Equipment and Emerging Technologies
Affiliation
MCIA Research Center - UPC-Universitat Politecnca de Catalunya, Terrassa, Spain (See document for exact affiliation information.)
Type
Convention Paper