And what kind of resistor can be controlled in that fashion?Why not sine modulate the resistance of the current setting resistor?
Disagree. I think the req is for a sinusoidal alternating current with a fixed +1.5 mA DC offset. The signal has a negative peak value of +1 mA and a positive peak value of +2 mA. Voltage compliance is unknown at this time.Here is my understanding: you want to make an sinusoidal AC constant current supply that supplies an adjustable average current of 1-2mA.
Actually... what if you did that by operating a MOSFET in the ohmic region? Maybe with some capacitors on the output for smooth sine wave and an H-bridge for + and -? Just a thought here.And what kind of resistor can be controlled in that fashion?
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