Converters

Technology

Our broad range of power electronics are specially designed to cooperate with our ultracapacitor modules but are also perfectly capable of working with another energy source, like batteries.

Normal ultracapacitor behaviour is that the voltage increases while charging and decreases while discharging. The voltage is a direct parameter for the cell’s energy level. From the energy formula of E= ½ CU², we derive that at half cell voltage, 25% of energy remains inside. To get 75% of the energy, the cell voltage decreases from Umax to half the value.

In most applications a constant voltage output is required for the load and a special converter with control electronics is necessary to connect the ultracapacitor energy storage to the load. A reason to use converters is the controlled pre-charging process as ultracapacitors have a very low internal resistance, thus, unsuitable to be directly connected to each other within a system.

Applications

• Charging ultracapacitor modules

• Charging batteries

• Energy storage systems

• (bus) Charging systems