Hi,
I have a simple circuit set up that generates a clippped voltages +/- 0.8 volts using 2 diodes on a positive 9 volt signal.
For example, 9 volts is ground, signal varies between 9.8 and 8.2 volts.
I want to amplify the millivolt part. If ground was zero i could just use a standard op amp with 100 gain and end up with a signal +/-9 volts.
But if i do it here, it multiplies the original 9 volts, plus the extra. So 9.1 volts become 910 volts.
Is there a way to do this?
Thanks
I have a simple circuit set up that generates a clippped voltages +/- 0.8 volts using 2 diodes on a positive 9 volt signal.
For example, 9 volts is ground, signal varies between 9.8 and 8.2 volts.
I want to amplify the millivolt part. If ground was zero i could just use a standard op amp with 100 gain and end up with a signal +/-9 volts.
But if i do it here, it multiplies the original 9 volts, plus the extra. So 9.1 volts become 910 volts.
Is there a way to do this?
Thanks