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Paper Abstract and Keywords
Presentation 2007-01-17 14:50
Numerical Design of Class DE Amplifier with Nonlinear Shunt Capacitance
Takayuki Watanabe, Hiroo Sekiya (Chiba Univ.), Tadashi Suetsugu (Fukuoka Univ.), Takashi Yahagi (Chiba Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) A Class DE amplifier is the amplifier which can achieve high efficiency movement under number of the high frequencies movement, and application to various fields is expected. In a conventional study, linear sex of shunt capacitance was assumed, and it has been analyzed. However, as for shunt capacitance , it becomes important that shunt capacitance considers a nonlinearity when I thought about the number of the high frequencies of movement frequency so that parasitism capacity of MOSFET becomes dominant. About Class DE amplifier that considered a nonlinearity of shunt capacitance , the movement analysis was already performed, but design-style derivation is not yet done. I derive a design type of the Class DE amplifier that considered a nonlinearity of a capacitor by this report theoretically. With the wave pattern expression that is already found analytically, I derive a design
type through Fourier analysis from there. When I gave movement frequency, the input voltage, the output voltage,
built-in electrical current potential of MOSFET as design specifications as one of the important results of this study, that I make clear that a nonlinearity of shunt capacitance does not have an influence on a design of a resonance circuit is given.
Keyword (in Japanese) (See Japanese page) 
(in English) Class DE amplifier / Shunt capacitance / Nonlineariy / High frequency operation / Resonant circuit / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 451, NLP2006-120, pp. 51-56, Jan. 2007.
Paper # NLP2006-120 
Date of Issue 2007-01-10 (NLP) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee NLP  
Conference Date 2007-01-17 - 2007-01-18 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To NLP 
Conference Code 2007-01-NLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Numerical Design of Class DE Amplifier with Nonlinear Shunt Capacitance 
Sub Title (in English)  
Keyword(1) Class DE amplifier  
Keyword(2) Shunt capacitance  
Keyword(3) Nonlineariy  
Keyword(4) High frequency operation  
Keyword(5) Resonant circuit  
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1st Author's Name Takayuki Watanabe  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Hiroo Sekiya  
2nd Author's Affiliation Chiba University (Chiba Univ.)
3rd Author's Name Tadashi Suetsugu  
3rd Author's Affiliation Fukuoka University (Fukuoka Univ.)
4th Author's Name Takashi Yahagi  
4th Author's Affiliation Chiba University (Chiba Univ.)
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Speaker Author-1 
Date Time 2007-01-17 14:50:00 
Presentation Time 25 minutes 
Registration for NLP 
Paper # NLP2006-120 
Volume (vol) vol.106 
Number (no) no.451 
Page pp.51-56 
#Pages
Date of Issue 2007-01-10 (NLP) 


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