Name: norton equivalent circuit in dc analysis
Uploaded: 2024-04-11T12:48:31.000Z
Duration: 1 min 14 s
Channel: JoVE

El teorema de Norton establece que cualquier circuito lineal de dos terminales puede ser reemplazado por un circuito equivalente que consta de una sola fuente de corriente en paralelo con una resistencia.
Para implementar el teorema de Norton, retire la resistencia de carga de los dos terminales de carga: la red restante será sustituida por el circuito equivalente de Norton visto desde estos terminales.
La resistencia de Norton se puede determinar estableciendo todas las fuentes independientes en cero. El equivalente o resistencia de entrada entre los terminales es la resistencia de Norton.
Para encontrar la corriente de Norton, devuelva todas las fuentes a sus posiciones originales. Luego, calcule la corriente de Norton encontrando la corriente de cortocircuito entre los terminales marcados.
Finalmente, reemplace la red con el circuito equivalente de Norton y vuelva a conectar la resistencia de carga.
La técnica de transformación de origen se puede utilizar para convertir entre circuitos equivalentes de Norton y Thévenin.
Se debe conocer el voltaje de circuito abierto, la corriente de cortocircuito y la resistencia de entrada o equivalente para determinar el circuito equivalente de Thevenin o Norton.
La estrecha relación entre los teoremas de Norton y Thévenin y la ley de Ohm ayuda a resolver circuitos eléctricos complejos.

teorema de norton

El teorema de Norton es un principio fundamental que establece que un circuito lineal de dos terminales se puede sustituir por un circuito equivalente, que comprende una fuente de corriente (ⅠN) en paralelo con una resistencia (RN). Aquí, ⅠN representa la corriente de cortocircuito que fluye a través de los terminales y RN representa la entrada o resistencia equivalente en los terminales cuando todas las fuentes independientes están desactivadas. Esto implica que el circuito ilustrado en la Figura (a) se puede intercambiar con el que se muestra en la Figura (b). <img alt="Figure1" src="/files/ftp_upload/15054/15054_PT_Figure_1.svg" style="text-align: center; height: 132px;"> Figure (a) <img alt="Figure1" src="/files/ftp_upload/15054/15054_PT_Figure_2.svg" style="text-align: center; height: 132px;"> Figure (b) La determinación de la resistencia de Norton implica el proceso de poner a cero todas las fuentes independientes dentro del circuito. El valor resultante representa la resistencia de Norton, que es esencial para la aplicación del teorema. Para calcular la corriente de Norton, se deben restaurar todas las fuentes a sus configuraciones originales y luego determinar la corriente de cortocircuito entre los terminales marcados. Es necesario reemplazar la red con el circuito equivalente de Norton y volver a conectar la resistencia de carga para completar la transformación. Para establecer el circuito equivalente de Thévenin o Norton, se debe tener conocimiento del voltaje de circuito abierto, la corriente de cortocircuito y la resistencia de entrada o equivalente. Estos parámetros sirven como entradas cruciales para estas transformaciones de circuitos. La estrecha relación entre los teoremas de Norton y Thévenin dada por las siguientes relaciones, <img alt="Equation1" src="/files/ftp_upload/15054/15054_PT_Equation_1.svg" style="text-align: center; height: 14px;"> <img alt="Equation1" src="/files/ftp_upload/15054/15054_PT_Equation_2.svg" style="text-align: center; height: 34px;"> junto con los principios de la ley de Ohm, proporciona herramientas valiosas para resolver circuitos eléctricos complejos.

Teorema de Norton

El teorema de Norton establece que cualquier circuito lineal de dos terminales puede ser reemplazado por un circuito equivalente que consta de una sola fuente de corriente en ...

Education

Educación

JoVE Core

Electrical Engineering

Ingeniería Eléctrica

Unit 1

Unidad 1

DC Circuit Analysis

Análisis de circuitos de CC

KEY TERMS AND CONCEPTS

TÉRMINOS Y CONCEPTOS CLAVE

Norton's Theorem

norton equivalent circuit in dc analysis

Norton equivalent circuit in DC analysis shows how a linear two-terminal circuit can be replaced by a simpler network. The replacement uses a current source, called I_N, in parallel with a resistor, called R_N. I_N is the short-circuit current through the terminals, and R_N is the input or equivalent resistance seen at the terminals when the independent sources are turned off.

To find Norton's resistance, all independent sources in the circuit are set to zero. The resistance measured at the marked terminals is then taken as R_N. To find Norton's current, the sources are restored to their original values and the short-circuit current between the terminals is found.

After the Norton equivalent is built, the load resistor is connected again to complete the transformation. This method gives a compact way to study how the circuit behaves at its terminals. It is closely linked to Thevenin's theorem, since both use the open-circuit voltage, short-circuit current, and equivalent resistance.

These relationships, together with Ohm's law, help solve more complex electrical circuits. By converting a network into its Norton form, students can compare terminal behavior more easily. The theorem is a useful tool for circuit analysis when a two-terminal linear network must be simplified.

Norton Equivalent Circuit in DC Analysis

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Norton equivalent circuit in DC analysis shows how a linear two-terminal circuit can be replaced by a simpler network. The replacement uses a current source, called I_N, in parallel with a resistor, called R_N. I_N is the short-circuit current through the terminals, and R_N is the input or equivalent resistance seen at the terminals when the independent sources are turned off. To find Norton's resistance, all independent sources in the circuit are set to zero. The resistance measured at the...

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Learn how Norton equivalent circuits simplify a linear two-terminal network using a current source, parallel resistance, and short-circuit current.

Norton Equivalent Circuit in DC Analysis | JoVE K12

JoVE Core Electrical Engineering offers easy-to-understand animated videos that cover fundamental concepts of electric circuits along with circuit analysis techniques. It incorporates first-order and second-order circuits using operational amplifiers and circuit transformation concepts. The inclusion of practical design examples and real-world applications through scientist-in-action videos adds significant educational value, making complex concepts accessible.

electrical engineering

Norton Equivalent Circuit in DC Analysis

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