Battery voltage controlling circuit arrangement for e.g. passenger car, has processing unit used for partial compensation of tolerances and/or temperature influences in signal and/or sensor arranged downstream to measuring device

摘要

The arrangement has a coil, a freewheeling diode (3) and an integrated measuring resistor (5) for measuring current of the coil. The measuring resistor is arranged in a free-wheeling path of the arrangement in a row between the free-wheeling diode and a power switching unit (7). A digital processing unit that is used for partial compensation of resistance-manufacturing tolerances and/or temperature influences in a tension signal and/or sensor are arranged downstream to a voltage measuring device, where the sensor is stamped during processing of an analog voltage signal.