TY - JOUR
N2 - In the paper an improved method of calculation of the inductance and capacitances in the ?1 circuit for Class A, AB, B, and C resonant power amplifiers is presented. This method is based on an assumption that the quality factor of the inductor is inite and the capacitors are lossless. The input parameters for calculations are the amplifier load resistance, the transistor load resistance, the quality factor of the inductor, the loaded quality factor of the designed circuit, and the operating frequency. The presented method allows reducing the required regulation range of ?1 circuits elements In built resonant amplifiers as compared to the traditional calculation methods assuming lossless capacitors and inductor. This advantage is important, in particular, for long- and medium-wave transistor power amplifiers, where capacitances in ?1 circuits are high comparing to typical trimming capacitors.
L1 - http://www.czasopisma.pan.pl/Content/84653/PDF/08_paper.pdf
L2 - http://www.czasopisma.pan.pl/Content/84653
PY - 2012
IS - No 2 June
EP - 237
DO - 10.2478/v10171-012-0019-x
KW - resonant-circuit design
KW - impedance transformation
KW - inductor quality factor
KW - loaded quality factor
KW - Class A
KW - class AB
KW - class B
KW - class C
A1 - Modzelewski, Juliusz
A1 - Kulma, Katarzyna
PB - Polish Academy of Sciences
VL - vol. 61
DA - 2012
T1 - An improved calculation method of inductance and capacitances in π1 circuits for resonant power amplifiers
SP - 221
UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/84653
T2 - Archives of Electrical Engineering
ER -