講演抄録/キーワード |
講演名 |
2013-03-14 13:00
Parallel Connected Class D Amplifiers for RF Power Source Applications Tadashi Suetsugu・○Xiuqin Wei(Fukuoka Univ.)・Tomoharu Nagashima・Hiroo Sekiya(Chiba Univ.) NLP2012-150 |
抄録 |
(和) |
This paper researches about influence of multi-frequency operation of parallel connected class D amplifiers. It can be seen that variation in dc supply voltage of one amplifier leg does not influence to output waveform of another amplifier leg. However, parallel connection of two amplifiers influences output power of both amplifiers due to change in impedance of output filter. It is proposed to insert decoupling filter to the output of higher frequency amplifier to reduce the coupling. It is shown that decoupling filter successfully improved coupling between amplifiers. |
(英) |
This paper researches about influence of multi-frequency operation of parallel connected class D amplifiers. It can be seen that variation in dc supply voltage of one amplifier leg does not influence to output waveform of another amplifier leg. However, parallel connection of two amplifiers influences output power of both amplifiers due to change in impedance of output filter. It is proposed to insert decoupling filter to the output of higher frequency amplifier to reduce the coupling. It is shown that decoupling filter successfully improved coupling between amplifiers. |
キーワード |
(和) |
Class D amplifiers / parallel connection / impedance / decoupling filter / / / / |
(英) |
Class D amplifiers / parallel connection / impedance / decoupling filter / / / / |
文献情報 |
信学技報, vol. 112, no. 487, NLP2012-150, pp. 33-36, 2013年3月. |
資料番号 |
NLP2012-150 |
発行日 |
2013-03-07 (NLP) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
NLP2012-150 |