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negative feedback |
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negative feedback [′neg·əd·iv ′fēd‚bak] (control systems) Feedback in which a portion of the output of a circuit, device, or machine is fed back 180° out of phase with the input signal, resulting in a decrease of amplification so as to stabilize the amplification with respect to time or frequency, and a reduction in distortion and noise. Also known as inverse feedback; reverse feedback; stabilized feedback. (science and technology) Feedback which tends to reduce the output in a system. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| A thermostat, which keeps a room at a pleasant temperature, is a negative feedback loop. |
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