negative feedback amplifier
E5210
A negative feedback amplifier is an electronic amplifier design that feeds a portion of its output back to its input in opposition to reduce distortion, stabilize gain, and improve overall performance.
All labels observed (1)
| Label | Occurrences |
|---|---|
| negative feedback amplifier canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T36539 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: negative feedback amplifier Context triple: [Harold Stephen Black, knownFor, negative feedback amplifier]
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A.
NE
NE is the common abbreviation for the New England Revolution, a professional Major League Soccer club based in the Greater Boston area.
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B.
IN
IN is the two-letter ISO 3166-1 alpha-2 country code representing India in international standards and systems.
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C.
Analog
Analog is a Texas Instruments business division that designs and manufactures analog semiconductor products such as amplifiers, power management ICs, and signal conditioning solutions.
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D.
audion vacuum tube
The audion vacuum tube is an early electronic amplifying device invented by Lee de Forest that enabled long-distance radio communication and laid the groundwork for modern electronics.
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E.
FRB
FRB is the commonly used abbreviation for the Federal Reserve Board of Governors, the central governing body of the U.S. Federal Reserve System that oversees national monetary policy and banking regulation.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: negative feedback amplifier Target entity description: A negative feedback amplifier is an electronic amplifier design that feeds a portion of its output back to its input in opposition to reduce distortion, stabilize gain, and improve overall performance.
-
A.
NE
NE is the common abbreviation for the New England Revolution, a professional Major League Soccer club based in the Greater Boston area.
-
B.
IN
IN is the two-letter ISO 3166-1 alpha-2 country code representing India in international standards and systems.
-
C.
Analog
Analog is a Texas Instruments business division that designs and manufactures analog semiconductor products such as amplifiers, power management ICs, and signal conditioning solutions.
-
D.
audion vacuum tube
The audion vacuum tube is an early electronic amplifying device invented by Lee de Forest that enabled long-distance radio communication and laid the groundwork for modern electronics.
-
E.
FRB
FRB is the commonly used abbreviation for the Federal Reserve Board of Governors, the central governing body of the U.S. Federal Reserve System that oversees national monetary policy and banking regulation.
- F. None of above. chosen
Statements (55)
| Predicate | Object |
|---|---|
| instanceOf |
electronic amplifier topology
ⓘ
feedback system ⓘ |
| analyzedBy |
control theory
ⓘ
feedback theory ⓘ small-signal analysis ⓘ |
| appliedIn |
RF amplifiers
ⓘ
audio power amplifiers ⓘ control systems ⓘ instrumentation amplifiers ⓘ operational amplifier circuits ⓘ |
| canBeImplementedWith |
bipolar junction transistor amplifier
ⓘ
field-effect transistor amplifier ⓘ operational amplifier ⓘ vacuum tube amplifier ⓘ |
| hasComponent |
feedback network
ⓘ
forward gain block ⓘ input summing node ⓘ output node ⓘ |
| hasEffect |
can increase low-frequency stability
ⓘ
can shape frequency response ⓘ extends high-frequency response ⓘ reduces effective gain compared to open-loop gain ⓘ reduces noise contribution of active device within loop ⓘ reduces output offset in some designs ⓘ |
| hasFeedbackType |
current-series feedback
ⓘ
current-shunt feedback ⓘ voltage-series feedback ⓘ voltage-shunt feedback ⓘ |
| hasProperty |
improved bias stability
ⓘ
improved repeatability ⓘ potential for oscillation if poorly compensated ⓘ reduced gain variation with temperature ⓘ reduced nonlinear distortion ⓘ reduced sensitivity to parameter variations ⓘ tradeoff between gain and bandwidth ⓘ |
| hasPurpose |
control input impedance
ⓘ
control output impedance ⓘ improve linearity ⓘ improve overall performance ⓘ increase bandwidth ⓘ reduce distortion ⓘ stabilize gain ⓘ |
| relatedTo |
closed-loop control system
ⓘ
positive feedback amplifier ⓘ |
| uses | negative feedback ⓘ |
| usesConcept |
Bode plot
ⓘ
Nyquist stability criterion ⓘ closed-loop gain ⓘ error signal ⓘ feedback factor ⓘ gain margin ⓘ loop gain ⓘ open-loop gain ⓘ phase margin ⓘ stability margin ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: negative feedback amplifier Description of subject: A negative feedback amplifier is an electronic amplifier design that feeds a portion of its output back to its input in opposition to reduce distortion, stabilize gain, and improve overall performance.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.