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Title:
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The nonlinear class-E amplifier: a case study of harmonic balance applied to switched circuits
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Author:
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Bonet Dalmau, Jordi; Águila López, Francisco del; Moncunill Geniz, Francesc Xavier; Palà Schönwälder, Pere
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. Departament de Disseny i Programació de Sistemes Electrònics; Universitat Politècnica de Catalunya. CIRCUIT - Grup de Recerca en Circuits i Sistemes de Comunicació |
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Abstract:
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Nonlinear switched circuits are usually analyzed in
the time domain. The use of frequency-domain methods to
analyze the steady-state of switched circuits is usually restricted
to linear circuits and, although Volterra series approaches are
applied to the distortion of nonlinear switched circuits, the use
of harmonic balance (HB) methods in nonlinear switched
circuits seems to be marginal if not discarded. In this paper, we
analyze the nonlinear class-E amplifier with an ideal switch by
means of the HB method. We show how the switching function
may be carefully chosen to improve the accuracy of the solution.
When the circuit achieves actual class-E operation, the method
converges better and is more accurate than classical timedomain
methods. We conclude that the HB method is an
alternative to time-domain methods that can be used to analyze
the class-E amplifier in its expected operation mode. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal
-Signal theory (Telecommunication)
-Amplifiers (Electronics)
-Switching circuits
-Senyal, Teoria del (Telecomunicació)
-Amplificadors (Electrònica)
-Circuits de commutació |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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IEEE Press. Institute of Electrical and Electronics Engineers
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