Brake chopper

The task of the brake chopper is to dissipate the energy that cannot be buffered by the generator in the event of rapid changes in speed or lifting applications. If the set voltage threshold is exceeded, the external resistor is switched on to prevent a damaging overvoltage.

The regenerative power is determined when calculating the application data.

Many mobile applications in DC 48 V are powered by energy storage units. In these applications, no external brake chopper is normally required because regenerative energy can be fed back into the storage units. If this is not possible or cannot be done quickly enough, external brake choppers are used that switch just below DC 60 V.

For example, a brake chopper such as the mcER-L40 from miControl^® GmbH can be used.