One-shot (monostable) fundamentals The technique used by one-shot circuits to respond to a change in signal edge rather than the sustained level is known as what?

Difficulty: Easy

Correct Answer: edge triggering

Explanation:


Introduction / Context:
A one-shot, or monostable multivibrator, produces a fixed-duration pulse in response to an input event. The essential idea is that the circuit should react to the transition (edge) of the input, not to how long the input remains high or low. This is vital for pulse shaping, debouncing, and timing generation.


Given Data / Assumptions:

  • We are discussing monostable (one-shot) behavior.
  • The desired response is to an edge (rising or falling) rather than a steady level.
  • The output is a single pulse of controlled width.


Concept / Approach:
Edge sensitivity prevents double triggering caused by a long or noisy level. By detecting a 0→1 or 1→0 change, the one-shot ensures a single, predictable output pulse width set by R*C timing in analog designs or by a counter/timer in digital logic. The industry term for reacting to an edge is “edge triggering.”


Step-by-Step Solution:
Identify required behavior: respond to transitions only.Associate with standard terminology: “edge triggering.”Conclude that the correct term is edge triggering.


Verification / Alternative check:
Datasheets for retriggerable and non-retriggerable monostables specify whether they trigger on rising, falling, or both edges, confirming the centrality of edge triggering to one-shot design.


Why Other Options Are Wrong:
“Level management” implies level sensitivity, not edge response. “Trigger input” names a pin, not a technique. “Edge trapping” is not a standard term in this context.


Common Pitfalls:
Confusing edge-triggered with level-triggered behavior; ignoring input conditioning that prevents false edges due to noise.


Final Answer:
edge triggering

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