Name: inductors in electric circuits
Uploaded: 2024-04-11T12:48:39.000Z
Duration: 1 min 11 s
Channel: JoVE

K12 Standards

Texas Essential Knowledge and Skills

High School

Chemistry and Physics

IPC.6

IPC.6.A

Inductors

Los inductores, a menudo denominados bobinas o estranguladores, desempeñan un papel crucial en diversos sistemas electrónicos y de potencia.
En esencia, cualquier conductor a través del cual fluye una corriente alterna posee inherentemente propiedades inductivas y podría clasificarse como un inductor.
Para mejorar el efecto inductivo, los prácticos inductores se crean enrollando un cable conductor alrededor de un núcleo hecho de material magnético.
Cuando una corriente fluye a través de un inductor, el voltaje a través de él es directamente proporcional a la tasa de cambio de la corriente a lo largo del tiempo. Esta constante de proporcionalidad se conoce como inductancia del inductor, y se mide en henry.
La inductancia se opone a cambios bruscos en la corriente que fluye a través de ella. Por lo tanto, la corriente a través de un inductor no puede cambiar instantáneamente.
Las dimensiones físicas, el material del núcleo y la construcción del inductor determinan su inductancia.
Los inductores vienen en una variedad de valores y tipos, que van desde unos pocos microhenrys hasta decenas de henrys.
Pueden ser fijos o variables, con núcleos construidos con una variedad de materiales que incluyen hierro, acero, plástico o incluso aire.

inductores

Un inductor es un componente pasivo construido para almacenar energía dentro de su campo magnético. Se puede fabricar enrollando un cable alrededor de un núcleo magnético. Cuando se permite que la corriente fluya a través de este inductor, se observa que el voltaje a través del inductor es directamente proporcional a la tasa de cambio de la corriente en el tiempo. Matemáticamente <img alt="Equation1" src="/files/ftp_upload/15088/15088_PT_Equation_1.svg" style="text-align: center; height: 36px;"> Esta relación se expresa mediante la convención de signos pasiva, donde 'L' representa la constante de proporcionalidad, también conocida como inductancia del inductor. La inductancia de un inductor está influenciada por factores como su tamaño, los materiales utilizados y el método de construcción. La unidad de medida de la inductancia es Henry (H). La inductancia es una medida de la capacidad de un dispositivo para almacenar energía en forma de campo magnético. Además, es una característica que permite que un inductor resista cambios en la corriente que fluye a través de él. Además de denominarse inductores, estos componentes también pueden denominarse bobinas o choques. El símbolo del circuito de un inductor se presenta en la Figura 1. <img alt="Figure1" src="/files/ftp_upload/15088/15088_PT_Figure_1.svg" style="text-align: center; height: 150px;"> La Figura 2 muestra una representación gráfica de la relación entre voltaje y corriente para un inductor cuya inductancia no depende de la corriente, también conocido como inductor lineal. <img alt="Figure2" src="/files/ftp_upload/15088/15088_PT_Figure_2.svg" style="text-align: center; height: 146px;"> Por otro lado, un inductor no lineal no tendría un trazado en línea recta, ya que su inductancia fluctúa con la corriente. Los inductores, similares a los condensadores, están disponibles comercialmente en varios valores y tipos. En aplicaciones prácticas, los inductores suelen tener valores de inductancia que van desde unos pocos microhenrios, como se ve en los sistemas de comunicación, hasta decenas de henrios, como se utilizan en los sistemas de energía. Los inductores pueden ser fijos o variables y su núcleo puede estar compuesto de diversos materiales, como hierro, acero, plástico o incluso aire.

Inductores

Los inductores, a menudo denominados bobinas o estranguladores, desempeñan un papel crucial en diversos sistemas electrónicos y de potencia.
En esencia, cualquier conductor a través del cual un ...

Education

Educación

JoVE Core

Electrical Engineering

Ingeniería Eléctrica

Unit 1

Unidad 1

Energy Storage Elements

Elementos de almacenamiento de energía

KEY TERMS AND CONCEPTS

TÉRMINOS Y CONCEPTOS CLAVE

inductors in electric circuits

Inductors are passive components used in electric circuits to store energy in a magnetic field. They are often made by coiling a wire around a magnetic core. This structure gives the component its inductive behavior and its ability to respond to changing current.

When current flows through an inductor, the voltage across it is proportional to how quickly the current changes with time. This relationship is written using the passive sign convention, and the constant of proportionality is called inductance, or L. Inductance is measured in henrys, written as H.

Inductance depends on several factors. The size of the inductor matters, as do the materials used and the way it is built. This property also describes how well the device stores energy in a magnetic field and how strongly it resists changes in current.

Inductors are also called coils or chokes. Their circuit symbol is used in circuit diagrams to show the component clearly. A linear inductor has a straight-line voltage-current graph because its inductance does not depend on current. A nonlinear inductor does not follow a straight line because its inductance changes with current.

Inductors are sold in many values and types, much like capacitors. Their inductance can range from a few microhenrys in communication systems to tens of henrys in power systems. They may be fixed or variable, and their cores can be made from iron, steel, plastic, or even air.

Inductors in Electric Circuits

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inductors

Inductors are passive components used in electric circuits to store energy in a magnetic field. They are often made by coiling a wire around a magnetic core. This structure gives the component its inductive behavior and its ability to respond to changing current. When current flows through an inductor, the voltage across it is proportional to how quickly the current changes with time. This relationship is written using the passive sign convention, and the constant of proportionality is called...

energy stored in inductors

How Inductor Current Stores Magnetic Energy

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series and parallel inductors

Equivalent Inductance in Circuit Networks

Equivalent inductance in circuit networks helps simplify circuits with multiple inductors. When inductors are combined, the circuit can often be replaced by one inductor with the same effect on the current and voltage. For inductors in series, the same current flows through each component. Applying Kirchhoff's voltage law shows that the total voltage is the sum of the inductor voltages. As a result, the equivalent inductance of a series group is the sum of the individual inductances. This is...

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Learn how inductors store energy in magnetic fields, resist current changes, and differ as linear or nonlinear components in circuits.

Inductors in Electric Circuits | JoVE K12

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Inductors, often referred to as coils or chokes, play a crucial role in various electronics and power systems.
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Inductors in Electric Circuits

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