Closed-Loop Feedback
Updated 2026-09-11
INTRODUCTION
English translation pending.
CORE DEFINITION
Closed-loop feedback describes any system in which output is sensed, compared against a target, and used to adjust subsequent action, in contrast to open-loop systems that act without checking results. The core claim is that a system can hold a target under disturbance only if it observes its own output, because open-loop action cannot detect or correct deviation. The qualification is that the loop works only if the feedback is timely and accurate, since delay or distortion turns correction into oscillation or drift.
SCAFFOLDING EFFECT
Reduce cognitive load
- Loop check: verify that a process measures its own output and adjusts rather than only executing. - Delay hunt: find the lag between action and feedback, since long lags cause overshoot. - Metric pairing: attach one observable measure to each goal so deviation becomes visible.
Anchor fast decisions
A control loop compares the measured output against the target and applies a correction proportional to the gap. Each cycle reduces the deviation, so the system converges on the target even when disturbances push it away. When measurement is delayed, the correction is applied to a state that has already changed, which converts the loop into a source of oscillation rather than stability.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Feedbackverified
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