A Transformer Class E Amplifier.
In: Archives of Electrical Engineering, Jg. 63 (2014-12-01), Heft 4, S. 621-633
Online
academicJournal
Zugriff:
In a high-efficiency Class E ZVS resonant amplifier a matching and isolation transformer can replace some or even all inductive components of the amplifier thus simplifying the circuit and reducing its cost. In the paper a theoretical analysis, a design example and its experimental verification for a transformer Class E amplifier are presented. In the experimental amplifier with a transformer as the only inductive component in the circuit high efficiency ηMAX = 0.95 was achieved for supply voltage VI = 36 V, maximum output power POMAX = 100 W and the switching frequency f = 300 kHz. Measured parameters and waveforms showed a good agreement with theoretical predictions. Moreover, the relative bandwidth of the switching frequency was only 19% to obtain output power control from 4.8 W to POMAX with efficiency not less than 0.9 in the regulation range. [ABSTRACT FROM AUTHOR]
Titel: |
A Transformer Class E Amplifier.
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Autor/in / Beteiligte Person: | Mikolajewski, Miroslaw |
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Zeitschrift: | Archives of Electrical Engineering, Jg. 63 (2014-12-01), Heft 4, S. 621-633 |
Veröffentlichung: | 2014 |
Medientyp: | academicJournal |
ISSN: | 1427-4221 (print) |
DOI: | 10.2478/aee-2014-0043 |
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