The high power voltage DC-DC converter is a bi-directional multiphase converter for a dual voltage power system. A DC-DC converter for power supply of the conventional 14 V power system in vehicles with 48 V alternator can, for example, support high-performance electric machines for boosting and creeping. Reduced load currents can be used for supplying high power loads at 48 V levels.
High-performance DC-DC converter
High-performance DC-DC converter
TECHNICAL DATA
- HELLA platform for high power DC-DC Converter, scalability thanks to multi-phase approach
- Applications: advanced stop/start function, coasting and recuperation with thermal management
- Conversion efficiency > 95%
- Power rating according to alternator up to 3kW
- Interface: CAN or LIN
- High reliability, availability and robustness
07/30/2015
ADVANTAGES
- Enables the use of additional, cost-effective systems such as recuperation, electric boost and creep
- Recuperation: average harvested electrical power in NEDC up to 350 W when using 10 kW electric machine, fuel-saving ~0.5 l/100 km
- Bi-directional DC-DC converter
- Scalable power capability up to 3 kW
- Supply of special load systems, e.g. for electromechanical power steering
