Hi!
So we have to build an audio amplifier that takes 100mV peak signal with Vcc = +5 V and have to build a power amplifier.
So what I did was build an opamp to get my gain of about +8V because it doesn't reach 10V due to non-ideality of the opamp I think.
And my question is, this is an audio amplifier so what should the output power be? I mean, when they say "build an audio amplifier", do they mean try to get the highest power at the output??
And one more thing, audio signals are 10 Hz - 20KHz and I heard from one my classmates that this design we make is supposed to work for any input frequency between 10 Hz and 20KHz. But whenever I change my input frequency to some other value than 1 KHz, the output power changes dramatically. Is this supposed to happen?? Also, at 1 KHz, I'm getting about 1.25 Watts at output. What is the theoretical maximum output power I can get having a max Vcc of +5V and input signal of 100mV??
So we have to build an audio amplifier that takes 100mV peak signal with Vcc = +5 V and have to build a power amplifier.
So what I did was build an opamp to get my gain of about +8V because it doesn't reach 10V due to non-ideality of the opamp I think.
And my question is, this is an audio amplifier so what should the output power be? I mean, when they say "build an audio amplifier", do they mean try to get the highest power at the output??
And one more thing, audio signals are 10 Hz - 20KHz and I heard from one my classmates that this design we make is supposed to work for any input frequency between 10 Hz and 20KHz. But whenever I change my input frequency to some other value than 1 KHz, the output power changes dramatically. Is this supposed to happen?? Also, at 1 KHz, I'm getting about 1.25 Watts at output. What is the theoretical maximum output power I can get having a max Vcc of +5V and input signal of 100mV??