In the circuit below, it is a non-inverting adder configuration of the op-amp. The R148 and R151 form a voltage divider to my input signal +/-5V sine signal to bring it to a level of +/-1.5V sine ...
Since we are injecting current into the cell, we want to cancel out the voltage artifact. Therefore a pulse cancellation stage (op-amp adder) is implemented to cancel out the injected current. We ...