Abstract: The invention relates to a circuit configuration for determining the average value of an input signal (s), comprising a signal input (1) for receiving the input signal (s) and comprising a signal output (13) for outputting an output signal (g) that depicts the average value of the input signal (s). According to the invention, a counter (10) is placed between the signal input (1) and the signal output (13) in order to conduct an averaging. Said counter is preferably controlled by a sigma-delta modulator (2).

Abstract: A power supply circuit (1), particularly for a microcontroller of a transmission control unit, comprises a first output (3) supplying a first output voltage (UOUT1) and a second output (4) supplying a second output voltage (UOUT2), the first output voltage (UOUT1) being different from the second output voltage (UOUT2). The power supply circuit (1) also comprises a unit (OP1, T2, OP2, T3) adjusting the first (UOUT1) and second output voltage (UOUT2) and a controller (OP3-OP5, T2, T3) limiting the voltage difference between the first (UOUT1) and second output voltage (UOUT2).