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PowerStor Supercapacitors Slide 15

Capacitor voltage imbalance can be caused by differences in capacitance value, during charge and discharge and by differences in capacitor leakage current in steady state. There are two main types of voltage balancing, active and passive which is also referred to as resistive. Passive voltage balancing works by adding a resistor across each of the series connected capacitors to reduce the effect of leakage current mismatch.

PTM Published on: 2011-08-23