Name: circuit source symbols and controls
Uploaded: 2024-04-11T12:48:28.000Z
Duration: 1 min 18 s
Channel: JoVE

Las fuentes de un circuito pueden ser independientes o dependientes.
Fuentes independientes de voltaje o corriente suministran voltaje y corriente que no se ven afectados por otros elementos del circuito.
Los símbolos de las fuentes de voltaje independientes tienen polaridades, mientras que las fuentes de corriente independientes usan flechas para indicar la dirección de la corriente.
Un cortocircuito es una fuente de voltaje independiente de voltaje cero, mientras que un circuito abierto es una fuente de corriente independiente de corriente cero.
Las fuentes dependientes son generadores de voltaje o corriente controlados por otros elementos del circuito. Están representados por una forma de diamante.
En función de sus partes controladoras y controladas, las fuentes dependientes se dividen en cuatro categorías.
Considere un circuito donde el voltaje de la fuente dependiente está controlado por la corriente a través de la resistencia.
Si se agrega un cortocircuito en serie con la resistencia, la corriente de control es equivalente a la corriente en el cortocircuito.
La relación entre el voltaje de la fuente y la corriente de control representa la ganancia de la fuente dependiente.
Del mismo modo, el voltaje de control se puede considerar como voltaje de circuito abierto.
Por lo tanto, el voltaje o la corriente de las fuentes dependientes es proporcional al voltaje o la corriente de control.

fuentes independientes y dependientes

En los circuitos eléctricos, las fuentes juegan un papel crucial al proporcionar energía para el funcionamiento del circuito. Estas fuentes se pueden clasificar en términos generales en dos tipos: independientes y dependientes. Las fuentes independientes de voltaje o corriente suministran una cantidad fija de voltaje o corriente, respectivamente, que no se ve afectada por otros elementos dentro del circuito. Estos se representan con símbolos específicos. Las fuentes de voltaje independientes están simbolizadas con polaridades (+ y -), que indican la dirección de la diferencia de potencial, mientras que las fuentes de corriente independientes usan flechas para indicar la dirección del flujo de corriente. Un aspecto interesante de las fuentes independientes es que un cortocircuito puede considerarse como una fuente de voltaje independiente de cero voltaje porque permite que la corriente fluya libremente sin caída de voltaje. Por el contrario, un circuito abierto puede considerarse como una fuente de corriente independiente de corriente cero, dado que evita cualquier flujo de corriente independientemente del voltaje aplicado. Por otro lado, las fuentes dependientes son generadores de voltaje o corriente cuyos valores están controlados por otros elementos dentro del mismo circuito. En los diagramas de circuito se representan con un símbolo en forma de diamante. Estas fuentes dependientes se dividen además en cuatro categorías según sus partes controladoras y controladas: fuentes de voltaje controladas por voltaje (VCVS), fuentes de voltaje controladas por corriente (CCVS), fuentes de corriente controladas por voltaje (VCCS) y fuentes de corriente controladas por corriente. (CCCS). Por ejemplo, en un circuito donde la salida de voltaje de una fuente dependiente está controlada por la corriente que fluye a través de una resistencia. Si se agrega un cortocircuito en serie con esta resistencia, la corriente de control se vuelve equivalente a la corriente en el cortocircuito. La relación entre el voltaje de la fuente y la corriente de control representa la ganancia de la fuente dependiente. De manera similar, el voltaje de control puede considerarse como voltaje de circuito abierto. Esto significa que el voltaje o la corriente de las fuentes dependientes es proporcional al voltaje o corriente de control.

Fuentes independientes y dependientes

Las fuentes de un circuito pueden ser independientes o dependientes.
Fuentes independientes de voltaje o corriente Voltaje y corriente de suministro no afectados por otros circuitos ...

Education

Educación

JoVE Core

Electrical Engineering

Ingeniería Eléctrica

Unit 1

Unidad 1

Basics of Electric Circuits

Fundamentos de los circuitos eléctricos

KEY TERMS AND CONCEPTS

TÉRMINOS Y CONCEPTOS CLAVE

Independent and Dependent Sources

circuit source symbols and controls

Circuit sources in electrical circuits can be independent or dependent. They provide the power a circuit needs to operate. Independent voltage sources supply a fixed voltage, and independent current sources supply a fixed current. Their output does not change because of other parts in the circuit.

These sources use standard symbols in circuit diagrams. An independent voltage source is shown with + and - signs to mark the potential difference. An independent current source is shown with an arrow to show the direction of current flow. A short circuit can be treated as a zero-voltage independent voltage source because it allows current to flow with no voltage drop. An open circuit can be treated as a zero-current independent current source because it blocks current flow even when voltage is applied.

Dependent sources work differently. Their voltage or current is controlled by another element in the same circuit. They are drawn with a diamond shape. There are four types: voltage-controlled voltage sources, current-controlled voltage sources, voltage-controlled current sources, and current-controlled current sources.

The controlling part can be tied to a resistor or another circuit element. For example, if the output voltage of a dependent source is controlled by the current through a resistor, adding a short circuit in series with that resistor makes the controlling current the same as the current in the short circuit. The ratio of the source voltage to the controlling current gives the gain of the dependent source. In a similar way, the controlling voltage can be treated as an open-circuit voltage. This means the voltage or current from a dependent source is proportional to the controlling voltage or current.

Circuit Source Symbols and Controls

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electrical engineering

Circuit Source Symbols and Controls

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