Energy supply circuit for automobile electrical network, uses multi-level controller with input/output terminals coupled to respective voltage supply paths for HV and LV loads and back-up storage battery

摘要

The energy supply circuit has a multi-level controller (W3) providing 3 voltage planes (U1,U2,U3), with respective input/output terminals coupled to 2 different voltage supply paths (Z1,Z2) for HV loads and LV loads and to a back-up energy storage battery (B1), with a variable current distribution between the different input/output terminals.