Design Equations for Off-Nominal Operation of Class E Amplifier with Nonlinear Shunt Capacitance at <I>D</I>=0.5

Tadashi SUETSUGU; Xiuqin WEI; Marian K. KAZIMIERCZUK

doi:10.1587/transcom.E96.B.2198

Design Equations for Off-Nominal Operation of Class E Amplifier with Nonlinear Shunt Capacitance at D=0.5

Tadashi SUETSUGU, Xiuqin WEI, Marian K. KAZIMIERCZUK

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Design equations for satisfying off-nominal operating conditions of the class E amplifier with a nonlinear shunt capacitance for a grading coefficient of 0.5 and the duty cycle D=0.5 are derived. By exploiting the off-nominal class E operation, various amplifier parameters such as input voltage, operating frequency, output power, and load resistance can be set as design specifications. As a result of the analysis in this paper, the following extension of the usability of the class E amplifier was achieved. With rising up the dc supply voltage, the shunt capacitance which achieves the off-nominal operation can be increased. This means that a transistor with higher output capacitance can be used for ZVS operation. This also means that maximum operating frequency which achieves ZVS can be increased. An example of a design procedure of the class E amplifier is given. The theoretical results were verified with an experiment.

Publication: IEICE TRANSACTIONS on Communications Vol.E96-B No.9 pp.2198-2205

Publication Date: 2013/09/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E96.B.2198

Type of Manuscript: PAPER

Category: Energy in Electronics Communications

Authors

Tadashi SUETSUGU
  Fukuoka University
Xiuqin WEI
  Fukuoka University
Marian K. KAZIMIERCZUK
  Wright State University

Keyword

class E power amplifiers, zero-voltage-switching (ZVS) operation, nonlinear shunt capacitance, off-nominal operation, zero switching losses

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Tadashi SUETSUGU, Xiuqin WEI, Marian K. KAZIMIERCZUK, "Design Equations for Off-Nominal Operation of Class E Amplifier with Nonlinear Shunt Capacitance at D=0.5" in IEICE TRANSACTIONS on Communications, vol. E96-B, no. 9, pp. 2198-2205, September 2013, doi: 10.1587/transcom.E96.B.2198.
Abstract: Design equations for satisfying off-nominal operating conditions of the class E amplifier with a nonlinear shunt capacitance for a grading coefficient of 0.5 and the duty cycle D=0.5 are derived. By exploiting the off-nominal class E operation, various amplifier parameters such as input voltage, operating frequency, output power, and load resistance can be set as design specifications. As a result of the analysis in this paper, the following extension of the usability of the class E amplifier was achieved. With rising up the dc supply voltage, the shunt capacitance which achieves the off-nominal operation can be increased. This means that a transistor with higher output capacitance can be used for ZVS operation. This also means that maximum operating frequency which achieves ZVS can be increased. An example of a design procedure of the class E amplifier is given. The theoretical results were verified with an experiment.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E96.B.2198/_p

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@ARTICLE{e96-b_9_2198,
author={Tadashi SUETSUGU, Xiuqin WEI, Marian K. KAZIMIERCZUK, },
journal={IEICE TRANSACTIONS on Communications},
title={Design Equations for Off-Nominal Operation of Class E Amplifier with Nonlinear Shunt Capacitance at D=0.5},
year={2013},
volume={E96-B},
number={9},
pages={2198-2205},
abstract={Design equations for satisfying off-nominal operating conditions of the class E amplifier with a nonlinear shunt capacitance for a grading coefficient of 0.5 and the duty cycle D=0.5 are derived. By exploiting the off-nominal class E operation, various amplifier parameters such as input voltage, operating frequency, output power, and load resistance can be set as design specifications. As a result of the analysis in this paper, the following extension of the usability of the class E amplifier was achieved. With rising up the dc supply voltage, the shunt capacitance which achieves the off-nominal operation can be increased. This means that a transistor with higher output capacitance can be used for ZVS operation. This also means that maximum operating frequency which achieves ZVS can be increased. An example of a design procedure of the class E amplifier is given. The theoretical results were verified with an experiment.},
keywords={},
doi={10.1587/transcom.E96.B.2198},
ISSN={1745-1345},
month={September},}

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TY - JOUR
TI - Design Equations for Off-Nominal Operation of Class E Amplifier with Nonlinear Shunt Capacitance at D=0.5
T2 - IEICE TRANSACTIONS on Communications
SP - 2198
EP - 2205
AU - Tadashi SUETSUGU
AU - Xiuqin WEI
AU - Marian K. KAZIMIERCZUK
PY - 2013
DO - 10.1587/transcom.E96.B.2198
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E96-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2013
AB - Design equations for satisfying off-nominal operating conditions of the class E amplifier with a nonlinear shunt capacitance for a grading coefficient of 0.5 and the duty cycle D=0.5 are derived. By exploiting the off-nominal class E operation, various amplifier parameters such as input voltage, operating frequency, output power, and load resistance can be set as design specifications. As a result of the analysis in this paper, the following extension of the usability of the class E amplifier was achieved. With rising up the dc supply voltage, the shunt capacitance which achieves the off-nominal operation can be increased. This means that a transistor with higher output capacitance can be used for ZVS operation. This also means that maximum operating frequency which achieves ZVS can be increased. An example of a design procedure of the class E amplifier is given. The theoretical results were verified with an experiment.
ER -