The high voltage DC - DC converter

The high voltage DC - DC converter

In an electric vehicle, truck or bus there is both a high and low voltage power system. The HV system is supplied directly from The traction ', supplying The motor and other large loads.The cabin and 'heater and A/C compressor. The For ltd. vehicles this extends to the air compressor and hydraulic pump. The low voltage 12 V / 24 V system provides power For all other loads in the vehicle.

The LV 'is charged, and The loads supplied by The main DC - DC converter (1-3 kW) when The vehicle is in use, in The same way The alternator supplies The 12 V system in an ICE vehicle. When The vehicle is off The 12 V is maintained by The LV'. For passenger vehicles, The DC - DC converter is more commonly integrated within The OBC than being a standalone module.

Depending on the specific architecture either reinforced isolated or non - isolated supply rails are required to be created from the HV system voltage which top service, the 1000 V input capable solutions from Power Integrations ideal.