Title :
A class D type high frequency tuned power amplifier with class E switching conditions
Author :
Koizumi, Hirotaka ; Iwadare, Minoru ; Mori, Shinsaku ; Ikeda, Kazunaga
Author_Institution :
Dept. of Electr. Eng., Keio Univ., Yokohama, Japan
fDate :
30 May-2 Jun 1994
Abstract :
A new class D type tuned power amplifier is proposed. It can operate at a far higher frequency (above 1 MHz) than a conventional class D one. This can be realized by applying the class E switching conditions to each switch. This circuit is very similar to class D amplifier but has a shunt capacitor in each switch device. The analysis, design procedure and experimental results are given. The measured efficiency was over 96 percent at 1 MHz
Keywords :
nonlinear network analysis; nonlinear network synthesis; power amplifiers; radiofrequency amplifiers; switching circuits; 1 MHz; 96 percent; HF tuned power amplifier; class D type; class E switching conditions; design procedure; switch device shunt capacitor; Capacitors; Circuits; Communication switching; Frequency; High power amplifiers; Parasitic capacitance; Power amplifiers; Radiofrequency amplifiers; Switches; Voltage;
Conference_Titel :
Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-1915-X
DOI :
10.1109/ISCAS.1994.409312
