Name: norton current in ac circuit analysis
Uploaded: 2024-04-11T12:48:50.000Z
Duration: 1 min 16 s
Channel: JoVE

Norton의 정리에 따르면 모든 2단자 선형 네트워크는 임피던스와 병렬로 정전류 소스로 구성된 등가 회로로 대체될 수 있습니다.
병렬 임피던스의 값을 결정하기 위해 소스는 내부 임피던스로 교체됩니다. 이 결과 회로의 등가 임피던스는 Norton 임피던스이며, 이는 Thévenin 임피던스와 동일합니다.
Norton 전류를 확인하려면 소스를 회로에 다시 배치하고 Thévenin 전압인 개방 회로 전압을 분석하십시오.
Thévenin 전압은 소스 전류와 Thevenin 임피던스의 곱에 의해 결정됩니다.
동일한 전압이 병렬 구성에 배치될 때 부하 임피던스를 가로질러 떨어집니다.
Norton 전류, Thévenin 전압 및 Thévenin 임피던스 간의 관계를 상기하십시오. 값을 대체하여 Norton 전류를 결정할 수 있습니다.
Norton의 정리는 복잡한 AC 회로를 포함하는 시스템을 분석하고 설계하는 데 유용합니다.
복잡한 회로의 각 단계 또는 섹션에 대한 Norton 등가 회로를 결정함으로써 전체 시스템의 분석을 단순화할 수 있습니다.

노턴 등가 회로

노턴의 정리는 복잡한 AC 회로를 단순화할 수 있는 전기 공학 분야의 기본 개념입니다. 정리에 따르면 모든 2단자 선형 네트워크는 정전류원과 병렬인 온저항으로 구성된 등가 회로로 대체될 수 있습니다. Figure 1은 회로 A와 회로 B의 두 부분으로 나누어진 AC 회로를 보여주고, Figure 2는 회로 A를 노턴 등가 회로로 대체하여 얻은 회로를 보여줍니다.

<img alt="Figure1" src="/files/ftp_upload/15114/15114_PT_Figure_1.svg" style="text-align: center; height: 160px;">
Figure 1: 두 부분으로 나누어진 회로

<img alt="Figure2" src="/files/ftp_upload/15114/15114_PT_Figure_2.svg" style="text-align: center; height: 160px;">
Figure 2: 노턴 등가 회로

병렬 온저항 값을 계산하려면 소스를 내부 온저항으로 대체해야 하며, 그 결과 노턴 온저항이라고 알려진 등가 온저항을 갖는 회로가 생성됩니다. 노턴 온저항은 테브낭 온저항고 동일하며 회로를 통해 흐르는 전류인 노턴 전류를 결정하는 데 사용됩니다.

노턴 전류를 결정하려면 소스를 다시 회로에 배치하고 테브낭 전압이라고도 알려진 개방 회로 전압을 분석해야 합니다. 테브낭 전압 값은 소스 전류에 테브낭 온저항을 곱하여 결정되며 병렬 구성으로 배치할 때 부하 임피던스 전체에서 동일한 전압을 낮추는 데 사용됩니다.

노턴 전류, 테브낭 전압 및 노턴 전류 값 간의 관계를 사용하여 회로의 노턴 전류를 결정할 수 있습니다. 이러한 관계로 인해 노턴의 정리는 회로를 더 작고 관리하기 쉬운 섹션으로 나누어 분석을 단순화하므로 복잡한 AC 회로가 포함된 시스템을 분석하고 설계하는 데 유용합니다.

Norton의 정리에 따르면 모든 2단자 선형 네트워크는 다음과 같은 정전류 소스로 구성된 등가 회로로 대체될 수 있습니다.

Education

교육

JoVE Core

Electrical Engineering

전기공학

Unit 1

제1단원

AC Circuit Analysis

교류 회로 분석

KEY TERMS AND CONCEPTS

주요 용어 및 개념

Norton Equivalent Circuits

norton current in ac circuit analysis

Norton’s theorem helps simplify complex AC circuits by replacing a two-terminal linear network with a smaller equivalent circuit. That equivalent circuit uses an impedance in parallel with a constant current source. The method lets students break one complicated circuit into two parts and analyze them more easily.

To build the Norton equivalent, the source is replaced by its internal impedance. The result is the Norton impedance, which is the same as the Thévenin impedance. This parallel impedance is the key value used in the equivalent circuit.

Finding the Norton current takes one more step. The sources are placed back into the circuit, and the open-circuit voltage is analyzed. That voltage is also called the Thévenin voltage, and it can be found by multiplying the source current by the Thévenin impedance.

The Thévenin voltage helps show the same voltage drop across the load impedance when the load is arranged in parallel. Using the relationship between the Norton current, the Thévenin voltage, and the Norton impedance makes it possible to determine the circuit current. This makes Norton’s theorem useful for analyzing and designing systems with complex AC circuits because it turns a hard problem into smaller, more manageable parts.

Norton Current in AC Circuit Analysis

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Learn how Norton’s theorem simplifies complex AC circuits with a parallel current source and impedance, and how Norton current is determined from Thévenin values.

Norton Current in AC 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

Norton Current in AC Circuit Analysis

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