eIQ-Energy - Model 4kW- 8kW - Bi-Directional DC DC Converter for Storage - Brochure

The bidirectional DC DC converters are high efficiency devices designed primarily for converting low voltage battery packs (48V or 96V) to a voltage matching the DC bus to which it is attached (380Vdc nominal). In high to low mode (buck), the converter uses the DC value of the DC bus to enable conversion, ensuring that there is sufficient power to apply charge to the battery pack. In low to high mode (boost), the same DC bus value signals the need for additional power on the bus and the batteries discharge. The converter is field programmable through the battery management system to assign maximum charge and discharge rates to maximize battery cycle life.