Difference between revisions of "Audio power amplifier"

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[[Image:Audio_amplifier_overview.jpg|400px]] [[Image:Audio_amplification_bottom.jpg|400px]]
[[Image:Audio_amplifier_overview.jpg|400px]] [[Image:Audio_amplifier_bottom.jpg|400px]]

== Measurements ==
== Measurements ==

Revision as of 13:10, 14 March 2010

This was a electronics course project, building an audio amplifier based around the LM1875 op-amp.


The circuit was constructed after calculating the amplification, upper and lower frequency band, according to the specifications.

Audio amplifier circuit.png


This shows the final circuit, mounted to a flexi-glass plate to balance the enormous heatsink and protect the bottom traces.

Audio amplifier side.jpg

Audio amplifier overview.jpg Audio amplifier bottom.jpg


Measuring the input and output signal using a oscilloscope will verify if the circuit is designed correctly, which it turned out to be.

Audio amplifier oscilloscope.png