- #1
chaoseverlasting
- 1,050
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Im using the 7809 IC to get 9v regulated dc supply. However, I'm also getting about 14v ac in the output as well. I've tried putting a notch filter tuned to 60hz to remove the ac voltage, but its still there.
I'm using this power supply to power tl072 op amps and I'm worried that the ac voltage present will change the bias point or saturate the op amp.
Another thing is that the circuit I'm trying to implement basically modifies an ac signal. The leakage voltage present is significantly greater than the input signal (which is about 35-80mv) which will render the whole circuit useless.
How do I get rid of the ac voltage?
EDIT: I also badly need help in trouble shooting the circuit.
I'm using this power supply to power tl072 op amps and I'm worried that the ac voltage present will change the bias point or saturate the op amp.
Another thing is that the circuit I'm trying to implement basically modifies an ac signal. The leakage voltage present is significantly greater than the input signal (which is about 35-80mv) which will render the whole circuit useless.
How do I get rid of the ac voltage?
EDIT: I also badly need help in trouble shooting the circuit.
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