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2026-01-09
High Voltage DC/DC Converter
The High Voltage DC/DC Converter ensures a reliable and efficient power supply for the 12 V on-board network in modern electric and hybrid vehicles. Available for 400 V and
800 V high-voltage systems, it supports bidirectional power transfer between the high-voltage and low-voltage domains.
Thanks to its passive air-cooling concept, the High Voltage DC/DC Converter operates without a liquid cooling circuit, combining a compact design with high robustness and a peak efficiency of over 96%, even under partial load conditions. Low-latency dynamic regulation guarantees a stable power supply for safety-critical systems such as advanced driver assistance systems, braking and steering control units.
The high-voltage DC/DC converter powers ECUs and communication modules during vehicle startup, ensuring critical systems are ready before the main system activates.
A secondary converter provides backup power to maintain essential functions if the high-voltage system fails.
The High Voltage DC/DC Converter ensures a reliable and efficient power supply for the 12 V on-board network in modern electric and hybrid vehicles. Available for 400 V and
800 V high-voltage systems, it supports bidirectional power transfer between the high-voltage and low-voltage domains.
Thanks to its passive air-cooling concept, the High Voltage DC/DC Converter operates without a liquid cooling circuit, combining a compact design with high robustness and a peak efficiency of over 96%, even under partial load conditions. Low-latency dynamic regulation guarantees a stable power supply for safety-critical systems such as advanced driver assistance systems, braking and steering control units.
The high-voltage DC/DC converter powers ECUs and communication modules during vehicle startup, ensuring critical systems are ready before the main system activates.
A secondary converter provides backup power to maintain essential functions if the high-voltage system fails.
High Voltage DC/DC Converter
Line drawing of the High Voltage DC/DC Converter (drawing for reference only)
Technical Data
| HV Voltage Range | 400 V: 220 V - 470 V 800 V: 340 V - 850 V |
| Volume | 2.45 I |
| ASIL Level | ASIL Level B |
| Energy transfer | Bidirectional |
| Cooling Concept | Passiv air cooling |
| Efficiency | > 96 % |
| Communication interface | CAN |
| Weight | 2.8 kg |
| Constant power | with active air cooling 1.5 KW, with passive air cooling 1.2 KW |
| Peak power | 2 kW |
Program Overview
| Description | Part number | Packaging unit |
|---|---|---|
| High Voltage DC/DC Converter (400 V to 12 V Boardnet) |
on request | 1 |
| High Voltage DC/DC Converter (800 V to 12 V Boardnet) |
on request | 1 |