EIGENROOM
INTERACTIVE CONTROL ENGINEERING LAB
SIGNAL / EQUATION / EVIDENCE

Follow the signal, then reduce the blocks

Predict series, parallel and feedback outputs before switching topology. Then change only H from 1 to 2. Which error does feedback reduce?

02 / CHECK YOUR PREDICTION

Did the result match your prediction?

Choose a measurable prediction before changing a setting. Record the current result, change one condition, then check. This compares complete recordings, not the replay cursor.

Prediction and baseline stay in memory for this page only. Use Start a new prediction to choose a new baseline.

Observe and compare

Series: G₁G₂ · Parallel: G₁+G₂ · Negative feedback: G₁G₂/(1+G₁G₂H)

r=1yG₁G₂
y/r
6
r − y
-5

    Explain what changed

    Predict series, parallel and feedback outputs before switching topology. Then change only H from 1 to 2. Which error does feedback reduce?

    Continue in Lecture Room →

    Read the related Field Journal →

    University of Washington — Block Diagram Simplification

    Change one condition

    r=1. H is used only in feedback. Static, dimensionless gains.