Patent ID: 6777925
Filing Date: 2004-08-17
Classification: G01P

Abstract:
An input circuit for receiving and processing signals from an inductive speed sensor, comprising:a comparator; a switchable voltage divider which includes first and second resistors; and first and second circuit inputs each of which is connected to an input of the comparator for evaluating signals from the inductive speed sensor and to the switchable voltage divider; wherein the first circuit input is connected via the first resistor to a first input of the comparator, and the second circuit input is connected via the second resistor, which is disconnectable by a switching device, to the first input of the comparator as well; the switching element is switchable, depending on speed detected by the speed sensor such that, if the speed value is above a predetermined speed, the second resistor is connected, and, if the speed value is below the predetermined speed, the second resistor is disconnected from the second circuit input.