Exact Analysis of Class DE Amplifier with FM and PWM Control
Summary :
The control of class DE amplifier is an important problem since its switching operations do not satisfy class E switching conditions when the load resistance varies from the initial designed values. Therefore, several of control schemes of class DE amplifier were proposed. However, the changes of the output voltage and the power conversion efficiency by using these controls can be measured only experimentally and thus, they cannot be found theoretically. In this paper, an exact analysis of class DE amplifier with FM and PWM control schemes is presented. From the analysis, we can theoretically derive the output voltage, the power conversion efficiency and so on. Moreover, the frequency and the duty ratio to keep the constant output voltage can be found when the load resistance or the input voltage varies. We indicate that the theoretical predictions are similar to the experimental results quantitatively. The measured efficiency is over 94% with 1.0 MHz and 1.8 W output.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E86-B No.10 pp.3082-3093
- Publication Date
- 2003/10/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Energy in Electronics Communications
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Hiroo SEKIYA, Iwao SASASE, Shinsaku MORI, "Exact Analysis of Class DE Amplifier with FM and PWM Control" in IEICE TRANSACTIONS on Communications,
vol. E86-B, no. 10, pp. 3082-3093, October 2003, doi: .
Abstract: The control of class DE amplifier is an important problem since its switching operations do not satisfy class E switching conditions when the load resistance varies from the initial designed values. Therefore, several of control schemes of class DE amplifier were proposed. However, the changes of the output voltage and the power conversion efficiency by using these controls can be measured only experimentally and thus, they cannot be found theoretically. In this paper, an exact analysis of class DE amplifier with FM and PWM control schemes is presented. From the analysis, we can theoretically derive the output voltage, the power conversion efficiency and so on. Moreover, the frequency and the duty ratio to keep the constant output voltage can be found when the load resistance or the input voltage varies. We indicate that the theoretical predictions are similar to the experimental results quantitatively. The measured efficiency is over 94% with 1.0 MHz and 1.8 W output.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e86-b_10_3082/_p
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@ARTICLE{e86-b_10_3082,
author={Hiroo SEKIYA, Iwao SASASE, Shinsaku MORI, },
journal={IEICE TRANSACTIONS on Communications},
title={Exact Analysis of Class DE Amplifier with FM and PWM Control},
year={2003},
volume={E86-B},
number={10},
pages={3082-3093},
abstract={The control of class DE amplifier is an important problem since its switching operations do not satisfy class E switching conditions when the load resistance varies from the initial designed values. Therefore, several of control schemes of class DE amplifier were proposed. However, the changes of the output voltage and the power conversion efficiency by using these controls can be measured only experimentally and thus, they cannot be found theoretically. In this paper, an exact analysis of class DE amplifier with FM and PWM control schemes is presented. From the analysis, we can theoretically derive the output voltage, the power conversion efficiency and so on. Moreover, the frequency and the duty ratio to keep the constant output voltage can be found when the load resistance or the input voltage varies. We indicate that the theoretical predictions are similar to the experimental results quantitatively. The measured efficiency is over 94% with 1.0 MHz and 1.8 W output.},
keywords={},
doi={},
ISSN={},
month={October},}
Copy
TY - JOUR
TI - Exact Analysis of Class DE Amplifier with FM and PWM Control
T2 - IEICE TRANSACTIONS on Communications
SP - 3082
EP - 3093
AU - Hiroo SEKIYA
AU - Iwao SASASE
AU - Shinsaku MORI
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E86-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2003
AB - The control of class DE amplifier is an important problem since its switching operations do not satisfy class E switching conditions when the load resistance varies from the initial designed values. Therefore, several of control schemes of class DE amplifier were proposed. However, the changes of the output voltage and the power conversion efficiency by using these controls can be measured only experimentally and thus, they cannot be found theoretically. In this paper, an exact analysis of class DE amplifier with FM and PWM control schemes is presented. From the analysis, we can theoretically derive the output voltage, the power conversion efficiency and so on. Moreover, the frequency and the duty ratio to keep the constant output voltage can be found when the load resistance or the input voltage varies. We indicate that the theoretical predictions are similar to the experimental results quantitatively. The measured efficiency is over 94% with 1.0 MHz and 1.8 W output.
ER -
English
