Difference between revisions of "Audio power amplifier"
From ivc wiki
Jump to navigationJump to search
(One intermediate revision by the same user not shown) | |||
Line 1: | Line 1: | ||
[[Image: | [[Image:Audio_amplifier_view.jpg|500px|right]] | ||
This was a electronics course project, building an audio amplifier based around the LM1875 op-amp. | This was a electronics course project, building an audio amplifier based around the LM1875 op-amp. | ||
Latest revision as of 20:38, 19 February 2011
This was a electronics course project, building an audio amplifier based around the LM1875 op-amp.
Report
- Project report: Effektforsterker for lyd - In norwegian, pdf
Circuit
The circuit was constructed after calculating the amplification, upper and lower frequency band, according to the specifications.
Final
This shows the final circuit, mounted to a flexi-glass plate to balance the enormous heatsink and protect the bottom traces.
Measurements
Measuring the input and output signal using a oscilloscope will verify if the circuit is designed correctly, which it turned out to be.
Here the amplifications is about 25 (9.8V/0.4V).