Board power supply arrangement for motor car, has load branches comprising voltage tap connected with power supply, where electric voltage of power supply is provided with electrical voltage value for supplying another power supply

摘要

The arrangement (10) has board power supplies (12, 14) providing electric voltages, where one of the electric voltages is higher than another electric voltage. A limiting unit (26) is connected with load branches, which are coupled to one of the power supplies for limiting the value of the former electric voltage. The load branches comprises a voltage tap that is connected with another power supply, where the electric voltage of the latter power supply is provided with latter electrical voltage value for supplying the former power supply by a voltage drop.