active capacitance

简明释义

有功电容

英英释义

例句

1.To improve the efficiency of the amplifier, we need to adjust the active capacitance 有源电容 settings.

为了提高放大器的效率，我们需要调整有源电容设置。

2.The simulation showed that increasing the active capacitance 有源电容 can enhance the filtering capability.

模拟显示，增加有源电容可以增强滤波能力。

3.Engineers often overlook the importance of active capacitance 有源电容 in their designs.

工程师们常常忽视在设计中有源电容的重要性。

4.In RF applications, the active capacitance 有源电容 plays a crucial role in signal integrity.

在射频应用中，有源电容在信号完整性中起着至关重要的作用。

5.The design of the circuit requires us to calculate the active capacitance 有源电容 for optimal performance.

电路的设计要求我们计算有源电容以获得最佳性能。

作文

In the field of electrical engineering, the concept of active capacitance plays a crucial role in understanding how capacitors function within circuits. Capacitors are widely used components that store electrical energy temporarily and release it when needed. However, the term active capacitance refers specifically to the effective capacitance in a circuit when considering the resistive elements and their impact on the overall performance of the capacitor. This distinction is essential for engineers who design circuits that require precise control over energy storage and release. The traditional definition of capacitance is straightforward: it is the ability of a component to store electric charge. Measured in farads, capacitance is a fundamental property that determines how much charge a capacitor can hold at a given voltage. However, in real-world applications, capacitors do not operate in isolation; they are part of larger circuits that include resistors, inductors, and other components. This is where the concept of active capacitance becomes significant.When a capacitor is connected in a circuit with resistive elements, the energy stored in the capacitor can be dissipated as heat due to the resistance. This interaction affects the efficiency of the circuit and the effective capacitance that can be utilized. The active capacitance thus provides a more accurate representation of how a capacitor behaves in a practical scenario, accounting for losses that occur in the form of resistive heating. Engineers must consider these factors when designing circuits for applications such as power supplies, filters, and oscillators, where the performance can be critically dependent on accurate capacitance values.To illustrate the importance of active capacitance, consider a simple RC (resistor-capacitor) circuit. In this circuit, the capacitor charges through the resistor. The time constant of the circuit, which dictates how quickly the capacitor can charge and discharge, is determined by both the resistance and the capacitance. If the resistance is high, the charging time increases, leading to a slower response in applications where speed is crucial. Therefore, knowing the active capacitance allows designers to make informed decisions about component values to optimize circuit performance.Moreover, in high-frequency applications, the concept of active capacitance becomes even more critical. At higher frequencies, capacitors exhibit different behaviors due to parasitic inductance and resistance. These effects can lead to a reduction in the effective capacitance, altering the circuit's response. By analyzing active capacitance, engineers can better predict how capacitors will perform under various frequency conditions, ensuring that the circuit functions as intended.In conclusion, the understanding of active capacitance is vital for anyone involved in electronic circuit design. It emphasizes the importance of considering not just the ideal characteristics of capacitors but also how they interact with other components in a circuit. By incorporating the concept of active capacitance into their designs, engineers can enhance the efficiency and reliability of their circuits, ultimately leading to better-performing electronic devices. As technology continues to advance, the need for precise and effective circuit designs will only grow, making the mastery of concepts like active capacitance increasingly important.

在电气工程领域，主动电容的概念在理解电容器如何在电路中发挥作用方面起着至关重要的作用。电容器是广泛使用的组件，能够暂时存储电能并在需要时释放。然而，术语主动电容特指在考虑电阻元件及其对电容器整体性能影响时电路中的有效电容。这一区别对于设计需要精确控制能量存储和释放的电路的工程师至关重要。电容的传统定义很简单：它是组件存储电荷的能力。电容以法拉为单位，是一个基本属性，决定了电容器在给定电压下可以存储多少电荷。然而，在实际应用中，电容器并不是孤立运行的；它们是包含电阻器、电感器和其他组件的更大电路的一部分。这就是主动电容概念变得重要的地方。当电容器连接到带有电阻元件的电路中时，存储在电容器中的能量可能由于电阻而以热量的形式散失。这种相互作用影响了电路的效率以及可以利用的有效电容。因此，主动电容提供了一个更准确的表示，说明电容器在实际场景中的行为，考虑了以电阻加热的形式发生的损失。工程师在设计如电源、滤波器和振荡器等应用电路时，必须考虑这些因素，因为性能可能严重依赖于准确的电容值。为了说明主动电容的重要性，考虑一个简单的RC（电阻-电容）电路。在这个电路中，电容器通过电阻充电。电路的时间常数决定了电容器充电和放电的速度，由电阻和电容共同决定。如果电阻很高，充电时间就会增加，从而导致在速度至关重要的应用中响应变慢。因此，了解主动电容使设计师能够做出明智的关于组件值的决策，以优化电路性能。此外，在高频应用中，主动电容的概念变得更加关键。在高频率下，电容器由于寄生电感和电阻表现出不同的行为。这些效应可能导致有效电容的减少，改变电路的响应。通过分析主动电容，工程师可以更好地预测电容器在各种频率条件下的表现，确保电路按预期工作。总之，理解主动电容对于任何参与电子电路设计的人来说都是至关重要的。它强调了考虑电容器的理想特性以及它们与电路中其他组件的相互作用的重要性。通过将主动电容的概念融入设计中，工程师可以提高电路的效率和可靠性，最终导致表现更好的电子设备。随着技术的不断进步，对精确和有效电路设计的需求只会增加，使掌握像主动电容这样的概念变得愈发重要。