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関連する概念動画

Power in an AC Circuit01:26

Power in an AC Circuit

2.3K
In a DC circuit, the power consumed is simply the product of the DC voltage times the DC current, given in watts. However, the power consumed for AC circuits with reactive components is calculated differently. Since electrical power is the "rate" at which energy is used in a circuit, all electrical and electronic components and devices have a safe operating range for electrical power.
In a DC circuit, there is no sinusoidal waveform associated with the supply; the voltages and currents are...
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Power in a Three-Phase Circuit01:15

Power in a Three-Phase Circuit

633
Three-phase systems have two configurations: the wye and delta. A star configuration can be three or four wires; in a delta configuration, the components are connected in a closed loop. Instantaneous power refers to the power value at a precise moment, and in a balanced three-phase system, it is constant. This is because the sum of the instantaneous powers in the three phases remains steady over time, despite individual fluctuations, due to the symmetry and phase relationship. The total...
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Power System Three-Phase Short Circuits01:21

Power System Three-Phase Short Circuits

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Determining the subtransient fault current in a power system involves representing transformers by their leakage reactances, transmission lines by their equivalent series reactances, and synchronous machines as constant voltage sources behind their subtransient reactances. In this analysis, certain elements are excluded, such as winding resistances, series resistances, shunt admittances, delta-Y phase shifts, armature resistance, saturation, saliency, non-rotating impedance loads, and small...
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Power Dissipated in a Circuit: Problem Solving01:15

Power Dissipated in a Circuit: Problem Solving

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The equivalent resistance of a combination of resistors depends on their values and how they are connected.
The simplest combinations of resistors are series and parallel connections. In a series circuit, the first resistor's output current flows into the second resistor's input; therefore, each resistor's current is the same. Thus, the equivalent resistance is the algebraic sum of the resistances. The current through the circuit can be found from Ohm's law and is equal to the...
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Power Distribution in Three-phase and Single Phase Circuits01:17

Power Distribution in Three-phase and Single Phase Circuits

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Power distribution within electrical circuits is a foundational aspect of residential and industrial energy systems. While single-phase power is common in residential settings, three-phase power is the standard for industrial environments with heavy machinery. Each system is different and has advantages, and it's crucial to understand the underlying principles of power distribution and material efficiency.
Single-Phase Power Distribution:
Single-phase circuits are typical in household settings;...
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超低電力オーガニック補完回路

Hagen Klauk1, Ute Zschieschang, Jens Pflaum

  • 1Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany. h.klauk@fkf.mpg.de

Nature
|February 16, 2007
PubMed
まとめ
この要約は機械生成です。

研究者は,自己組み立てモノレイヤーと空気安定半導体を使用して,低電力有機回路を開発しました. これらの回路は,ポータブルディスプレイやセンサーなどのバッテリー駆動の電子機器を可能にし,以前の高消費電力問題を克服します.

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科学分野:

  • オーガニック・エレクトロニクス
  • マテリアルサイエンス 材料科学
  • 半導体デバイス物理学の物理

背景:

  • 低温で加工可能な有機半導体は,様々な基板上の柔軟な電子機器の可能性を秘めています.
  • 従来の有機回路の高電力消費は,バッテリー駆動アプリケーションでの使用を制限しています.

研究 の 目的:

  • 消費電力を大幅に削減した有機回路を実証する.
  • 携帯機器およびセンサーネットワークにおける有機電子学の実用的な応用を可能にする.

主な方法:

  • ゲート介電体として自己組み立てモノレイヤを使用した.
  • 使用されている空気に安定した有機半導体:ペンタセンとヘキサデカフローロコッパーファタロシアニン (F16CuPc).
  • 製造された補完回路 (pチャンネルとnチャンネルトランジスタ).

主要な成果:

  • ロジックゲートあたり100pA未満の非常に低い静的電流を達成しました.
  • 補完的なインバーター,NANDゲート,リングオシレータを実証した.
  • 低供給電圧 (1.53V) で動作する回路で,論理ゲート1nW未満の静的電力消費.

結論:

  • 開発された有機回路は,低電力,バッテリーで動作するシステムに適しています.
  • 潜在的な応用には,携帯型ディスプレイ,広域センサーネットワーク,強化された無線周波数識別タグが含まれます.