- Joined Oct 4, 2018
I was given to use only BJT npn , no I need to design from the most basic elementsDo you need to do this discrete ? There are so many
low cost audio amp ICs that have all the protections
and low distrortion, and easy to use. Class D versions
getyou h igh efficiency as well
Yes, but not very well. The darlington can source lots of current into the speaker, but the only path to sink current out of the speaker is through the darlington's emitter resistor. This means the amplifier's output impedance is not symmetrical. The smaller the resistor, the better the audio, but also the more heat the circuit will dissipate. A class A amplifier is very inefficient. It is common for a circuit like this to dissipate 2 watts in heat for every 1 watt that goes into the speaker.Will this circuit layout able to drive the 8 ohm speaker ?
Hello ,im sorry I think this one can be deletedHello,
Why did you start a new thread as you already have one running?
Designing a simple audio amplifier
In that other thread you posted the same schematic here:
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