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In the theory of electrical networks, a dependent source is a voltage source or a current source whose value depends on a voltage or current elsewhere in the network. Dependent sources are useful, for example, in modeling the behavior of amplifiers. A bipolar junction transistor can be modeled as a dependent current source whose magnitude depends on the magnitude of the current fed into its controlling base terminal. An operational amplifier can be described as a voltage source dependent on the differential input voltage between its input terminals. Practical circuit elements have properties such as finite power capacity, voltage, current, or frequency limits that mean an ideal source is only an approximate model. Accurate modeling of practical devices requires using several idealized elem

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rdf:type	yago:Abstraction100002137 yago:IndefiniteQuantity113576355 yago:Measure100033615 yago:Supply113777344 yago:WikicatPowerSupplies
rdfs:label	Gesteuerte Quelle (de) Dependent source (en)
rdfs:comment	In the theory of electrical networks, a dependent source is a voltage source or a current source whose value depends on a voltage or current elsewhere in the network. Dependent sources are useful, for example, in modeling the behavior of amplifiers. A bipolar junction transistor can be modeled as a dependent current source whose magnitude depends on the magnitude of the current fed into its controlling base terminal. An operational amplifier can be described as a voltage source dependent on the differential input voltage between its input terminals. Practical circuit elements have properties such as finite power capacity, voltage, current, or frequency limits that mean an ideal source is only an approximate model. Accurate modeling of practical devices requires using several idealized elem (en) Eine gesteuerte Quelle (auch abhängige Quelle, englisch dependent source) ist ein elementares ideales elektrisches Bauelement, welches die rückwirkungsfreie Kopplung von Spannungen und Strömen unterschiedlicher Zweige eines elektrischen Netzwerks ermöglicht. Gesteuerte Quellen werden beispielsweise zwingend benötigt, um reale nichtumkehrbare und/oder aktive Zweitore (also elektronische Bauelemente wie Elektronenröhren, Transistoren oder Operationsverstärker) als Ersatzschaltbild darzustellen. Im Gegensatz zu unabhängigen Strom- und Spannungsquellen wird ihr Quellenstrom bzw. ihre Quellenspannung durch einen Steuerstrom oder eine Steuerspannung leistungslos gesteuert. Gesteuerte Quellen stellen selbst sehr grobe Näherungen von realen aktiven Bauelementen dar. Sie dürfen nicht mit steuerbare (de)
foaf:depiction
dcterms:subject	Electrical power control Power supplies
Wikipage page ID	33922824 (xsd:integer)
Wikipage revision ID	1117296364 (xsd:integer)
Link from a Wikipage to another Wikipage	Electric current Electrical network Mesh analysis Vacuum tube Voltage SPICE Ohm Open-circuit voltage Electrical power control MOSFET Siemens (unit) Superposition theorem Voltage source Mathematical methods in electronics Power supplies Topology (electronics) Distributed-element model Current source Series and parallel circuits Bipolar junction transistor Ground (electricity) Circuit theory Operational amplifier Trancitor Lumped-element model Field effect transistor
sameAs	Dependent source Dependent source Dependent source Dependent source Dependent source Dependent source Dependent source
dbp:wikiPageUsesTemplate	dbt:Div_col dbt:Div_col_end dbt:For dbt:Multiple_image dbt:Portal dbt:Reflist
thumbnail	wiki-commons:Special:FilePath/Ohm's_Law_with_Voltage_source_TeX.svg?width=300
align	right (en)
caption	Current-controlled current source (en) Current-controlled voltage source (en) Voltage-controlled current source (en) Voltage-controlled voltage source (en)
direction	vertical (en)
image	Current controlled current source.svg (en) Current controlled voltage source.svg (en) Voltage controlled current source.svg (en) Voltage controlled voltage source circuit.svg (en)
width	200 (xsd:integer)
has abstract	Eine gesteuerte Quelle (auch abhängige Quelle, englisch dependent source) ist ein elementares ideales elektrisches Bauelement, welches die rückwirkungsfreie Kopplung von Spannungen und Strömen unterschiedlicher Zweige eines elektrischen Netzwerks ermöglicht. Gesteuerte Quellen werden beispielsweise zwingend benötigt, um reale nichtumkehrbare und/oder aktive Zweitore (also elektronische Bauelemente wie Elektronenröhren, Transistoren oder Operationsverstärker) als Ersatzschaltbild darzustellen. Im Gegensatz zu unabhängigen Strom- und Spannungsquellen wird ihr Quellenstrom bzw. ihre Quellenspannung durch einen Steuerstrom oder eine Steuerspannung leistungslos gesteuert. Gesteuerte Quellen stellen selbst sehr grobe Näherungen von realen aktiven Bauelementen dar. Sie dürfen nicht mit steuerbaren Stromversorgungseinheiten verwechselt werden. (de) In the theory of electrical networks, a dependent source is a voltage source or a current source whose value depends on a voltage or current elsewhere in the network. Dependent sources are useful, for example, in modeling the behavior of amplifiers. A bipolar junction transistor can be modeled as a dependent current source whose magnitude depends on the magnitude of the current fed into its controlling base terminal. An operational amplifier can be described as a voltage source dependent on the differential input voltage between its input terminals. Practical circuit elements have properties such as finite power capacity, voltage, current, or frequency limits that mean an ideal source is only an approximate model. Accurate modeling of practical devices requires using several idealized elements in combination. (en)
prov:wasDerivedFrom	wikipedia-en:Dependent_source?oldid=1117296364&ns=0
page length (characters) of wiki page	4652 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Dependent_source
is rdfs:seeAlso of	Mesh analysis
is Link from a Wikipage to another Wikipage of	Amplifier Electrical network Mesh analysis Superposition theorem Active EMI reduction Asymptotic gain model Thévenin's theorem Return ratio Dependent Sources Dependent generator Dependent sources
is Wikipage redirect of	Dependent Sources Dependent generator Dependent sources
is foaf:primaryTopic of	wikipedia-en:Dependent_source

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