help me pls...
hello people...
i have attached a circuit that acts as an amplifier for biological signals... E1, E2 and E3 are the electrodes that will pick up the signals from the human body... these signals are amplified and filtered...
As u can see electrode E3 is the reference electrode or the ground electrode... i have a problem here.... the op-amps used must be provided with a +/-12V dc supply...
where must the ground of the power supply be connected to? i cannot connect it to the same ground as E3 (the reference electrode) as the user ight experience shock...
i need to isolate these two grounds, otherwise the circuit wont work... can u pls help me?
hello people...
i have attached a circuit that acts as an amplifier for biological signals... E1, E2 and E3 are the electrodes that will pick up the signals from the human body... these signals are amplified and filtered...
As u can see electrode E3 is the reference electrode or the ground electrode... i have a problem here.... the op-amps used must be provided with a +/-12V dc supply...
where must the ground of the power supply be connected to? i cannot connect it to the same ground as E3 (the reference electrode) as the user ight experience shock...
i need to isolate these two grounds, otherwise the circuit wont work... can u pls help me?