Advantages and disadvantages of the composition of CBB capacitors

Series CBB capacitor components:

Because the single working voltage of CBB capacitors is not high enough to cover the voltage demand range of application conditions, multiple cells need to be connected in series to meet the voltage requirements of the application conditions, but due to the inherent differences between the individual capacitors, The total voltage across the series components is not evenly distributed to different capacitors, which can result in asymmetry in voltage distribution.

Parallel CBB capacitors:

CBB capacitor assemblies constructed in parallel can output or accept large currents. In the charging process, the series voltage resistance is used to ensure the voltage distribution between the cells, but the inherent charging resistance of the CBB capacitor is a dynamic quantity with a certain degree of dispersion, making the control circuit for adjusting the resistance change extremely complicated and difficult to realize. Point-by-point control; in the discharge process, the discharge resistance is controlled to obtain a high output power, but in order to avoid excessive discharge current and ensure the approved output power, the energy storage of the component should be properly controlled.