Design and analysis of class DE amplifier with any output Q, any duty ratio and switch on resistance

Author

Sekiya, Hiroo ; Oshikawa, Satvki ; Lu, Jianming ; Yahagi, Takashi

Author_Institution

Graduate Sch. of Sci. & Technol., Chiba Univ., Japan

Volume

3

fYear

2003

fDate

25-28 May 2003

Abstract

This paper presents a new design procedure for a class DE amplifier, showing the design values and output capabilities of class DE amplifier with any output Q, any duty ratio, and switch on resistance. The main idea of this paper is that the order of the ´analysis and design´ is changed to ´design and analysis´. If the design values are known, the characteristics of the amplifier can be derived easily by numerical calculations. Carrying out the circuit experiments, we show the validity of the design procedure. Measured efficiency is 93.0% with 1.0 MHz and 1.6 W output.

Keywords

Q-factor; nonlinear network analysis; nonlinear network synthesis; power amplifiers; switching circuits; 1.0 MHz; 1.6 W; 93.0 percent; class-DE amplifier; design procedure; duty ratio; output Q; output capability; switch on resistance; Capacitors; Circuit topology; High power amplifiers; Load management; Nonlinear equations; Operational amplifiers; Power conversion; Resistors; Steady-state; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1205010

Filename

1205010