This project is still one of my favorates. Mainly because you produce a tangiable object that
actually does
something "useful".
The project revolves around building an amplifier using a 10 Volt rail and transistors. In our case,
this is
done by using a class A amplifier to
generate a 8V peak to peak from the low energy input audio. Thereafter, amplifying the current using
a
AB-class amplifier. Here, i have solely designed the entire
A-class part and helped to build the AB-class as well. Having done most of the designing (A-class)
using
LT-spice in a trail and error fashion the SSEQ and biasing calculations where
still to be done. This wasnt easy as I had devoloped quite an unconventional way of amplifiying the
signal.
Using 2 CCC-CEC combinations 100mV input is converted to
an 8V peak to peak signal. In the end i did manage to calculate everything through and happened to
learn a lot
about Bipolar Junction Transistors, and their impact on a circuit.
I have done this project with Tom Brunning and Emilio cuertez in order to finish Module 3 of
Electrical
Engineering on the University of twente.