Patent ID: 8152977

Claim:
A multichannel potentiostat comprising: a reference terminal, a counter-electrode terminal and at least two working terminals respectively designed to be connected to a reference electrode, a counter-electrode and at least two working electrodes of an electrochemical cell, a first regulating circuit having a first input electrically linked to the reference terminal and a second input electrically linked to a first working terminal, the first regulating circuit being configured to apply a first setpoint voltage between the reference terminal and the first working terminal, a second regulating circuit having a first input electrically linked to the reference terminal and a second input electrically linked to the second working terminal, the second regulating circuit being configured to apply a second setpoint voltage between the reference terminal and the second working terminal, a control circuit of the counter-electrode voltage applied to the counter-electrode terminal, wherein a first input terminal of the control circuit is linked to an output of the first regulating circuit and wherein a second input terminal of the control circuit is designed to be linked to a first device providing a first voltage on the second input, the control circuit being configured to apply a third setpoint voltage between the first voltage and the first setpoint voltage by modulating the counter-electrode voltage.