Hi All,
I'm trying to design a voltage controlled clipper circuit. I've got something that almost works. It takes a positive voltage, creates a negative voltage in proportion to the control voltage, and clips the incoming signal. The circuit tracks wonderfully if the control voltage is much larger than the signal, but as the signal grows, it interferes with the tracker circuit so the proportion gets way off. I've tried a lot of ways to isolate the two, but everything seems to cause the circuit to no longer work (in the attachment, D2, R9, and C2 are all attempts at this).
A further wrinkle is that I want to do the same sort of thing, but instead use a negative control voltage to generate a negative proportional envelope (say 1.7-2x), and hopefully switch between the two versions.
Is there a simple/elegant solution? Is there a better way?
Ideally, what I'm looking for would act as a variable zener diode. I've also tried adjustable zener circuits but those don't seem to work well with AC signals (won't clip like a zener or biased diode would, and don't seem to be able to be configured to work negatively).
Thank you all for taking a look!
I'm trying to design a voltage controlled clipper circuit. I've got something that almost works. It takes a positive voltage, creates a negative voltage in proportion to the control voltage, and clips the incoming signal. The circuit tracks wonderfully if the control voltage is much larger than the signal, but as the signal grows, it interferes with the tracker circuit so the proportion gets way off. I've tried a lot of ways to isolate the two, but everything seems to cause the circuit to no longer work (in the attachment, D2, R9, and C2 are all attempts at this).
A further wrinkle is that I want to do the same sort of thing, but instead use a negative control voltage to generate a negative proportional envelope (say 1.7-2x), and hopefully switch between the two versions.
Is there a simple/elegant solution? Is there a better way?
Ideally, what I'm looking for would act as a variable zener diode. I've also tried adjustable zener circuits but those don't seem to work well with AC signals (won't clip like a zener or biased diode would, and don't seem to be able to be configured to work negatively).
Thank you all for taking a look!
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