camerart
Well-Known Member
Hi,
I have 2X pick up coils with outputs varying 0.1 to 10V Approx AC.
I need to switch a motor forward or reverse depending which coil reading is highest or lowest.
I can input 2X A/D converters on a PIC chip and program the motor to turn. Or I can probably use a 2X channel analogue circuit like a servo.
I have tried Op amp circuits which have a 2n3819 fet Transistor as a pre-amp, but after many attempts, I can't seem to get consistency.
Hope you can help.
Cheers, Camerart.
I have 2X pick up coils with outputs varying 0.1 to 10V Approx AC.
I need to switch a motor forward or reverse depending which coil reading is highest or lowest.
I can input 2X A/D converters on a PIC chip and program the motor to turn. Or I can probably use a 2X channel analogue circuit like a servo.
I have tried Op amp circuits which have a 2n3819 fet Transistor as a pre-amp, but after many attempts, I can't seem to get consistency.
Hope you can help.
Cheers, Camerart.