| Presentation | 2013-03-14 Analysis of Class-E_M Amplifier Taking into Acount Drain Current Fall Time Zhicai ZHANG, Tomoharu NAGASHIMA, Xiuqin WEI, Hiroo SEKIYA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The class E_M amplifier is composed of class E amplifier and auxiliary circuit output harmonic. The class E_M amplifier achieves jumpless current and voltage waveforms, so class E_M amplifier keeps high efficiency operation with long turn-off switching time in comparision with the class E amplifier. However, the analysis of the conventional class E_M amplifier, switch current jump is not taken into account in the auxiliary circuit. Since the current fall time is present, the power loss occurs as there is overlap of switch voltage and switch current. Therefore, in order to obtain a more stringent power efficiency, it is important to take into account the current fall time in the auxiliary circuit. In this paper, we propose analysis and design of class E_M amplifier that takes into account the current fall time in the auxiliary circuit. By this analysis, we can carry out more stringent design of the E_M amplifier, including the impact of the current fall time in the auxiliary circuit. Moreover, by carrying out the laboratory experiments, we show the validity of the analysis in this paper. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Class-E_M power amplifier / current fall time / high power conversion efficiency |
| Paper # | NLP2012-151 |
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| Conference Information | |
| Committee | NLP |
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| Conference Date | 2013/3/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Nonlinear Problems (NLP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of Class-E_M Amplifier Taking into Acount Drain Current Fall Time |
| Sub Title (in English) | |
| Keyword(1) | Class-E_M power amplifier |
| Keyword(2) | current fall time |
| Keyword(3) | high power conversion efficiency |
| 1st Author's Name | Zhicai ZHANG |
| 1st Author's Affiliation | Graduate School of Advanced Integration Science, Chiba University() |
| 2nd Author's Name | Tomoharu NAGASHIMA |
| 2nd Author's Affiliation | Graduate School of Advanced Integration Science, Chiba University |
| 3rd Author's Name | Xiuqin WEI |
| 3rd Author's Affiliation | Faculty of technology, Fukuoka University |
| 4th Author's Name | Hiroo SEKIYA |
| 4th Author's Affiliation | Graduate School of Advanced Integration Science, Chiba University |
| Date | 2013-03-14 |
| Paper # | NLP2012-151 |
| Volume (vol) | vol.112 |
| Number (no) | 487 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |