Method for debouncing an electrical input signal, and debouncing module

Abstract

The ivnention provides a method for debouncing an electrical input signal (xin), and debouncing module (10). The method for debouncing an electrical input signal (xin) includes following steps: (1) aninput signal (xin) is received and a present value of the input signal (xin) is ascertained; (2) ascertaining whether the present value of the input signal (xin) is above or below at least one predefined limit value (xG); (3) producing a debounce status variable (xE) having a defined initial value; (4) altering the value of the debounce status variable (xE) on the basis of at least whether the value of the input signal (xin) is above or below the at least one limit value (xG), (5) generating an output signal (xout) on the basis of whether the value of the debounce status variable (xE) corresponds to the minimum value (Wmin), to the maximum value (Wmax) or to a value between the minimum value (Wmin) and the maximum value (Wmax).

Description

technical field [0001] The present invention relates to a method for debounce of an electric input signal and a debounce module. Background technique [0002] Electrical signals in general and electrical signals from sensors can specifically be described as comprising a superposition of an ideal interference-free signal and additive interference. [0003] The disturbances generally have a randomly distributed component described, for example, as additive white Gaussian noise. Therefore, electrical signals have high-frequency disturbances superimposed on them. Therefore, interference alters the electrical signal so that it differs from the ideal signal. [0004] In many different situations, it must be confirmed whether the interference-free electrical signal is above or below predefined limit values. This typically involves generating a binary output signal whose value depends on whether the interfering-free electrical signal is above or below a predefined limit. [0005...

AI Technical Summary

Problems solved by technology

However, this approach can lead to long delays, especially in the case of very noisy signals, as the electrical signal will repeatedly exceed the limit (even if only briefly)

Images