Chargebalanced
Chargebalanced refers to a property of electrical signals, stimulation protocols, or systems in which the net injected electrical charge over a defined period is zero. This balance is most commonly sought in biomedical electrical stimulation to avoid accumulation of charge at the electrode–tissue interface, which can cause tissue damage or electrode degradation.
In practice, chargebalanced stimulation is often achieved with biphasic pulses that consist of two phases with
The purpose of ensuring charge balance is to prevent DC offset and minimize electrode polarization, which can
Challenges in achieving and maintaining chargebalance include electrode-tissue interface dynamics, changes in impedance over time, and
See also: charge balance, biphasic stimulation, neural stimulation safety, electrode impedance.