Project information
- Category : PCB design
- Designer : Amit Barman
- Project date : 03 October, 2022
- Project URL : https://github.com/AmitBarman99/12W-Audio-amplifier
Short Details and Specifications
This is a Op-Amp(LF351D) based audio amplifier.In case of audio amplifier system, major load for a power amplifier is the Loud speaker.Improper load can compromise the efficiency of this circuit as well as the stability. In this pretty sample the LF351D amplifies the signal voltage and two power transistor provide the necessary power amplification.
If we consider a R Ohms speaker and output volt is V ,
$$Power = V^2 / R$$
by taking, V=9-10V & R= 8 Ohms ; Power = 12W (approx)