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Chapter 7

AC Steady State Power

Puissance instantanée
Puissance instantanée
For a circuit with a sinusoidal input, the power delivered to a passive element equals the product of the voltage and current across it. Expressing ...
Puissance moyenne
Puissance moyenne
For most practical applications, the time-varying instantaneous power is not a commonly used quantity. Instead, the average power is used as the ...
Valeur effective d’une forme d’onde périodique
Valeur effective d’une forme d’onde périodique
Consider an AC circuit with a periodic voltage source connected to a resistor. The average power delivered to the resistor equals the integral of the ...
Puissance complexe
Puissance complexe
Consider a load connected to an AC source. The voltage and currents across this load can be represented in the frequency domain. The complex power is ...
Conservation de l’alimentation en courant alternatif
Conservation de l’alimentation en courant alternatif
The principle of AC power conservation states that the complex, real, and reactive powers generated by the source are equivalent to the total complex, ...
Facteur de puissance
Facteur de puissance
The power factor is the ratio of the active power to the apparent power. It is determined by the phase difference between the voltage and current, which ...
Correction du facteur de puissance
Correction du facteur de puissance
The power transmission to a factory involves the transfer of both active and reactive power. The ratio of active to total power defines the power factor. ...
Le principe de superposition de puissance
Le principe de superposition de puissance
Consider a circuit with two sinusoidal voltage sources. According to the superposition principle, the total current resulting from both sources is the sum ...
Le théorème de transfert de puissance maximale
Le théorème de transfert de puissance maximale
Consider a linear AC circuit connected to a load, represented by its Thevenin equivalent. The current flowing through the load is determined using the ...
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