Thursday, April 20, 2017

Easy simple stereo amplifier circuit using TEA2025B IC - powered by 5 Volt USB

A very simple stereo amplifier circuit using TEA2025B IC chip powered by 5 volt USB. The component is quite are not very complicated just some electrolyte capacitors and ceramic capacitors as well as potentiometer. The sound is extremely loud - I am pretty sure further research to improve the circuit will produce good sound especially the bass.

The schematic is shown as below.






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Adjustable DC to DC step up voltage booster using LM2577 -Adj P+ chip

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