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Lead–lag compensator
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<p>A lead–lag compensator is a component in a <a href="/facts/Control_system/8CEjIDlS">control system</a> that improves an undesirable <a href="/facts/Frequency_response/zsHmnCJ4">frequency response</a> in a feedback and <a href="/facts/Control_system/8CEjIDlS">control system</a>. It is a fundamental building block in classical <a href="/facts/Control_theory/aIuERpn6">control theory</a>. </p>