M
Michael
- Jan 1, 1970
- 0
I'm using an LM741 as an active low-pass filter. Non-inverting input
with output capacitor feedback between two series resistors. This works
fine with unity gain (output tied back to inverting input). However, if
I try to increase the gain using a resistor divider to feedback to the
inverting input, I stop getting any output (however, if I remove the
inverting feedback completely, I seem to get an extremely large gain).
Any ideas on what's happening.
TIA.
with output capacitor feedback between two series resistors. This works
fine with unity gain (output tied back to inverting input). However, if
I try to increase the gain using a resistor divider to feedback to the
inverting input, I stop getting any output (however, if I remove the
inverting feedback completely, I seem to get an extremely large gain).
Any ideas on what's happening.
TIA.