Input Voltage Crosses

Some articles on voltage, input voltage, input voltage crosses:

Schmitt Trigger - Implementation - Fundamental Idea
... The positive feedback is introduced by adding a part of the output voltage to the input voltage so, these circuits contain an attenuator (the B box in the figure on the right) and a summer (the circle with ... In these configurations, the output voltage increases the effective difference input voltage of the comparator by decreasing the threshold or by increasing the circuit input voltage the threshold and memory properties ... Dynamic threshold (series feedback) when the input voltage crosses the threshold in some direction the very circuit changes its own threshold to the opposite direction ...

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