DC/DC voltage stabilisers

Guaranteed voltage: HELLA DC/DC converters are connected between the power supply of the main vehicle electrical system and the partial vehicle electrical system to be stabilised. They ensure that the output voltage to the electrical subsystem is maintained in the event of short-term voltage dips, and are therefore also referred to as voltage stabilisers.

Voltage dips can occur, for example, during engine startup, especially in start/stop systems. Voltage conservation mainly concerns the function of non-safety-critical systems such as infotainment systems or terminal applications in commercial vehicles.

The converters are activated by the ignition. As soon as a voltage dip is signaled via the engine’s start signal, the main network and the electrical subsystem are decoupled, and thus the DC/DC converters are used to stabilise the system. If stabilisation is not (or no longer) necessary, the subsystem of the vehicle electrical system is coupled with the main system via a low-impedance line.