ECU WITH POWER SUPPLY MANAGEMENT AND METHOD FOR POWER SUPPLY OF AN ECU

The invention relates to an electronic control unit (10) with a power supply management and to a method for power supply in an electronic control unit (10). The electronic control unit (10) is connected via an electric connection (6C) to a vehicle battery (6) and connected via an electric connection (7C) to an energy reserve (7) of the electronic control unit (10). The electronic control unit (10) controls a first switching element (13) which is positioned prior to a first diode (11) in the electric connection (6C) from the vehicle battery (6) to the control circuit (8). Additionally, the electronic control unit (10) controls a second switching element (14) positioned prior to the second diode (12) in the electric connection (7C) from the energy reserve (7) to the control circuit (8).