Flying-Capacitor Linear Amplifier With Capacitor Voltage Balancing for High-Efficiency and Low Distortion
Flying-Capacitor Linear Amplifier With Capacitor Voltage Balancing for High-Efficiency and Low Distortion
复制标题
具有电容器电压平衡功能的飞跨电容器线性放大器,可实现高效率和低失真
DOI:
10.1109/tia.2020.3034560
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发表时间:
2021
影响因子:
4.4
通讯作者:
Kawamura Atsuo
中科院分区:
文献类型:
--
作者:
Obara Hidemine;Ohno Tatsuki;Katayama Masaya;Kawamura Atsuo
This article presents a flying-capacitor linear amplifier (FCLA) that achieves high efficiency, low harmonic distortion, and low electromagnetic interference (EMI). A conventional class-B linear amplifier cannot be used in power conversion applications, because the power loss generated in active-state MOSFETs is high compared with the loss generated in switching operations. In the proposed FCLA, multiple series-connected MOSFETs are used, and only one MOSFET operates in the active state at a time. Thus, the power loss generated in the MOSFETs can be reduced, and the FCLA can achieve high efficiency without performing the switching operation. In this study, the features of the FCLA and conventional linear amplifiers are theoretically compared and evaluated. Moreover, a voltage balancing control for flying capacitors is proposed and verified through simulations and experiments. It is demonstrated that the prototype 12-series FCLA achieves over 89% efficiency and generates low harmonics and low EMI. The proposed configuration is useful for increasing the number of series MOSFETs, and it contributes to realizing a power converter with advantages such as low harmonic distortion, low EMI, and high efficiency.
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DOI:
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发表时间:
2017
期刊:
影响因子:
--
作者:
Tatsuki Ohno;Masaya Katayama;Hidemine Obara;and Atsuo Kawamura
通讯作者:
and Atsuo Kawamura
DOI:
10.1109/08ias.2008.325
发表时间:
2008
期刊:
2008 IEEE Industry Applications Society Annual Meeting
影响因子:
--
作者:
H. Fujita
通讯作者:
H. Fujita
DOI:
10.1109/apec.2017.7930997
发表时间:
2017
期刊:
2017 IEEE Applied Power Electronics Conference and Exposition (APEC)
影响因子:
--
作者:
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通讯作者:
J. Cobos
DOI:
10.1109/tpel.2009.2033186
发表时间:
2010-04
期刊:
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition
影响因子:
--
作者:
M. Vasić;Ó. García;J. Oliver;P. Alou;D. Diaz;J. Cobos
通讯作者:
M. Vasić;Ó. García;J. Oliver;P. Alou;D. Diaz;J. Cobos
DOI:
10.1109/iecon.2005.1568993
发表时间:
2005
期刊:
31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005.
影响因子:
--
作者:
Bumseung Jin;Won;Tae;D. Kang;D. Hyun
通讯作者:
D. Hyun