feedback loop signal
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Feedback — For other uses, see Feedback (disambiguation). Feedback describes the situation when output from (or information about the result of) an event or phenomenon in the past will influence an occurrence or occurrences of the same (i.e. same defined)… … Wikipedia
Signal-flow graph — A signal flow graph (SFG) is a special type of block diagram[1] and directed graph consisting of nodes and branches. Its nodes are the variables of a set of linear algebraic relations. An SFG can only represent multiplications and additions.… … Wikipedia
Loop gain — In negative feedback amplifiers, loop gain refers to the product of the gain in the feedback loop and the feedback factor in that loop. In Figure 1, the loop gain is the product β A OL.In telecommunication, the term loop gain has the following… … Wikipedia
Loop — A loop is generally something that closes back on itself such as a circle. The closing can appear in time or in space.cience and technology*Loop (algebra), a quasigroup with an identity element *Loop (graph theory), an edge that begins and ends… … Wikipedia
feedback path — In a feedback control loop, the transmission path from the loop output signal to the loop feedback signal. See feedback (ii) … Aviation dictionary
feedback — F/A/V 1. unwanted noise caused by the loop of an audio system s output back to its input. 2. in a control system, data supplied to give an indication of status, i.e., on or off. TV [1:video] Infinite loop of visual patterns from signal output… … Audio and video glossary
loop transfer function — noun The ratio of the Laplace transform of the primary feedback signal of a control system to that of the actuating signal Syn: loop ratio … Wiktionary
Phase-locked loop — PLL redirects here. For other uses, see PLL (disambiguation). A phase locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input reference signal. It is an electronic… … Wikipedia
Negative feedback amplifier — Figure 1: Ideal negative feedback model A negative feedback amplifier (or more commonly simply a feedback amplifier) is an amplifier which combines a fraction of the output with the input so that a negative feedback opposes the original signal.… … Wikipedia
Positive feedback — Alarm or panic can spread by positive feedback among a herd of animals to cause a stampede. Positive feedback is energy taken from the output of a system and reapplied to the input, which is phase congruent with the input signal. A system… … Wikipedia
Minor loop feedback — is a classical method used to design stable robust linear Feedback control systems using feedback loops around sub systems within the over all feedback loop.[1] The method is sometimes called minor loop synthesis in college text books,[2][3] some … Wikipedia
