Hi everyone,
After much experimentation and Spice simulations, I've realized I require some additional insight on a circuit that I'm trying to design
The attached picture provides a description & schematic of the circuit and problem. Basically, this is what I am wondering:
I'm trying to use a FET as a switch to bypass a resistor (the resistor is connected in parallel with the source and drain). I believe this should work under DC conditions, but the resistor is part of an AC audio circuit. Is this kind of FET switching possible?
Bypassing the resistor (i.e. switching on the FET) essentially sets its equivalent resistance to zero. I'm using this property to try and create a variable low pass filter.
Thanks for reading my post!
Michael
After much experimentation and Spice simulations, I've realized I require some additional insight on a circuit that I'm trying to design
The attached picture provides a description & schematic of the circuit and problem. Basically, this is what I am wondering:
I'm trying to use a FET as a switch to bypass a resistor (the resistor is connected in parallel with the source and drain). I believe this should work under DC conditions, but the resistor is part of an AC audio circuit. Is this kind of FET switching possible?
Bypassing the resistor (i.e. switching on the FET) essentially sets its equivalent resistance to zero. I'm using this property to try and create a variable low pass filter.
Thanks for reading my post!
Michael
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