
31-16 Power Electronics and Motor Drives
capacitor topology and single switched capacitor topology. Switched capacitor requires (n − 1) capaci-
tors to balance n cells whereas single switched capacitor needs only one capacitor to balance n cells. e
single switched capacitor is a derivation of the switched capacitor. Shuttling balancing method utilizes
external energy storage devices (usually a capacitor) to shuttle the energy between adjacent cells.
31.4.8.1 Switched Capacitor
Switched capacitor circuit is shown in Figure 31.15. In this topology, to balance n cells 2n switches and
(n − 1) capacitors are required. e control strategy is very si ...