Square wave to psuedo-sine wave?
dave.harper schrieb:
Originally, I had used a wein-bridge oscillator with op-amps to make
the sine wave, but due to the environment, EMI was a problem and it
damped out the oscillations (even with ferrite beads and modest
shielding). So I'd like to avoid using op-amps (since they are
apparently sensitive to EMI) if possible.
Hello,
a Wien-Robinson bridge oscillator needs a good amplitude stabilisation.
If the amplification is to low, the oscillations will damp out. I guess
there was something wrong with your amplitude stabilisation.
Bye
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