Laboratory exercise for class B/AB power amplifier

Author

Stojanovic, Z. ; Stojanovic, S. ; Cinikas, I.

Author_Institution

Polytech. of Zagreb, Zagreb, Croatia

fYear

2015

fDate

25-29 May 2015

Firstpage

161

Lastpage

165

Abstract

Laboratory exercise for amplifier class B/AB for sophomore is described. In the first part, the influence of quiescent current and input signal amplitude on output signal waveform distortion and amplifier efficiency is examined. Output signal waveform is observed in time domain qualitatively and in frequency domain quantitatively. In second part, amplifier´s output resistance is measured. In each measurement students have to reason out measurement results, the difference between measurement results and analytical results and measurement uncertainty. Students learn concepts of quiescent point, harmonic distortion, power, output resistance and measurement uncertainty by encompassing different areas of electrical engineering - electronics, circuit and signal analysis, power analysis and measurements.

Keywords

harmonic distortion; measurement uncertainty; power amplifiers; amplifier efficiency; class B/AB power amplifier; harmonic distortion; input signal amplitude; measurement uncertainty; output resistance; output signal waveform distortion; quiescent current; quiescent point; Current measurement; Distortion; Distortion measurement; Electrical resistance measurement; Measurement uncertainty; Semiconductor device measurement; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Communication Technology, Electronics and Microelectronics (MIPRO), 2015 38th International Convention on

Conference_Location

Opatija

Type

conf

DOI

10.1109/MIPRO.2015.7160257

Filename

7160257