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Chapter 7

AC Steady State Power

瞬时功率
瞬时功率
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 ...
平均功率
平均功率
For most practical applications, the time-varying instantaneous power is not a commonly used quantity. Instead, the average power is used as the ...
周期波形的有效值
周期波形的有效值
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 ...
复合功率
复合功率
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 ...
节省交流电
节省交流电
The principle of AC power conservation states that the complex, real, and reactive powers generated by the source are equivalent to the total complex, ...
功率因数
功率因数
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 ...
功率因数校正
功率因数校正
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. ...
幂叠加原理
幂叠加原理
Consider a circuit with two sinusoidal voltage sources. According to the superposition principle, the total current resulting from both sources is the sum ...
最大功率传输定理
最大功率传输定理
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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