Patent ID: 7113375

Claim:
A circuit configuration for monitoring and/or regulating at least one first supply voltage (U 12 ), generated by means of a first feed-in (Q 1 ), for a first consumer circuit (V 1 ) connected to a first output of the circuit configuration, and at least one second supply voltage (U 22 ), generated by means of a second feed-in (Q 2 ), for a second consumer circuit (V 2 ) connected to a second output of the circuit configuration, which circuit configuration includes: a voltage monitoring electronics unit, reacting to at least the first supply voltage (U 12 ), for generating a control signal (y) that signals whether the first supply voltage (U 12 ) is lower than an associated first tolerance value (ΔU 12 ); and a shunt electronics unit, through which a shunt current (I S ) flows at least intermittently; wherein the shunt current (I S ) is supplied by the first and the second feed-in (Q 1 , Q 2 ), and flows through the shunt electronics unit at least whenever the control signal (y) signals that at least the first supply voltage (U 12 ) is greater than the first tolerance value (ΔU 12 ).