Name: ac source conversion in circuit analysis
Uploaded: 2024-04-11T12:48:49.000Z
Duration: 1 min 11 s
Channel: JoVE

Considere un circuito compuesto por una fuente de corriente y una combinación de resistencias, condensadores e inductores con valores de impedancia conocidos.
El objetivo es utilizar la técnica de transformación de la fuente para determinar la caída de voltaje a través de la rama más a la derecha del circuito.
Mediante la transformación de la fuente, una fuente de corriente en paralelo con una impedancia se puede convertir en una fuente de voltaje en serie con la misma impedancia o viceversa.
Aplicando la ley de Ohm, se calcula el voltaje de la fuente. Este valor se puede expresar en términos de fasor.
En el circuito transformado, la impedancia está en serie con la fuente de voltaje, junto con los otros dos elementos de la rama superior. Se obtiene la impedancia en serie equivalente.
Ahora, se vuelve a aplicar la técnica de transformación de la fuente para convertir la fuente de voltaje en una fuente de corriente.
A continuación, se obtiene la impedancia de la nueva combinación paralela, que se utiliza para transformar la fuente de corriente en una fuente de voltaje.
Finalmente, la regla de división de voltaje determina la caída de voltaje a través de la rama más a la derecha.

transformación de fuente para circuitos de ca

El proceso de transformación de una fuente en el dominio de la frecuencia implica la conversión de una fuente de voltaje, colocada en serie con una impedancia, en una fuente de corriente paralela a una impedancia, o al revés. Es esencial mantener las siguientes relaciones durante la transición de un tipo de fuente a otro. <img alt="Equation1" src="/files/ftp_upload/15112/15112_PT_Equation_1.svg" style="text-align: center; height: 16px;"> <img alt="Equation2" src="/files/ftp_upload/15112/15112_PT_Equation_2.svg" style="text-align: center; height: 40px;"> Para determinar el voltaje desconocido para un circuito compuesto por una fuente de corriente y un conjunto de resistencias, condensadores e inductores, cada uno con su impedancia conocida distinta, se siguen una serie de pasos. Inicialmente, la fuente de voltaje se convierte en una fuente de corriente y se establecen los valores de la corriente de la fuente (Ⅰs) y la impedancia (Zs). Posteriormente, transformar la fuente de corriente nuevamente en una fuente de voltaje da como resultado un circuito diferente. A partir de este circuito derivado, se calcula el voltaje de fuente (Vs) utilizando los valores determinados previamente. Finalmente, aplicando la regla de división de voltaje, se puede identificar el voltaje desconocido a través de la resistencia.

Transformación de fuente para circuitos de CA

Considere un circuito compuesto por una fuente de corriente y una combinación de resistencias, condensadores e inductores con valores de impedancia conocidos.
El objetivo es ...

Education

Educación

JoVE Core

Electrical Engineering

Ingeniería Eléctrica

Unit 1

Unidad 1

AC Circuit Analysis

Análisis de circuitos de corriente alterna (CA)

KEY TERMS AND CONCEPTS

TÉRMINOS Y CONCEPTOS CLAVE

Source Transformation for AC Circuits

ac source conversion in circuit analysis

AC source conversion is a circuit analysis method used in the frequency domain. It changes a voltage source in series with an impedance into a current source in parallel with the same impedance, or it converts a current source back into a voltage source. The source values must keep the correct relationship during each change.

This method helps solve for an unknown voltage in a circuit that includes a current source and components such as resistors, capacitors, and inductors. Each of these parts has a known impedance. The circuit is handled in steps so the final voltage can be found more easily.

First, the voltage source is converted into a current source. The source current, Is, and the source impedance, Zs, are identified. Next, the current source is changed back into a voltage source, which gives a new circuit form. From that derived circuit, the source voltage, Vs, is calculated. The final unknown voltage across the resistor is then found with the voltage division rule.

AC Source Conversion in Circuit Analysis

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source transformation for ac circuits

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Learn how AC source conversion turns voltage sources into current sources and back again to find unknown voltage with impedance and voltage division.

AC Source Conversion in Circuit 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

AC Source Conversion in Circuit Analysis

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