This is an audio amplifier that takes a small AC input signal from 3.5mm Audio Jack and powers up a 8 ohm speaker through a series of signal and power amplifier. The design includes two signal amplifier circuit, followed by a power amplifier. It operates on a 12V dc source. Each amplifier is simulated in Multisim- all the DC operating points and transient analysis is performed by Multisim and confirmed by manual calculations using SparkView and a four channel Oscilloscope.
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November 30, 2019 at 7:59 am
Whats the gain??
November 30, 2019 at 3:48 pm
As far as I remember, the combined three stage gain was close to 100.