Circuit system for supplying an increased supply voltage with respect with the vehicle on-board network voltage

摘要

The system (16) has an additional electrical energy storage (19) e.g. capacitor, that is switched in series to a storage of an onboard supply system or motor vehicle battery (20). The motor vehicle battery is chargeable by a charging circuit (22). An electrical load is supplied by the series connection of the storage of the onboard supply system or motor vehicle battery and the additional electrical energy storage.