fixed capacitor

简明释义

固定电容器

英英释义

例句

1.The fixed capacitor in the timing circuit determines the frequency of oscillation.

定时电路中的固定电容器决定了振荡的频率。

2.Replacing a faulty fixed capacitor can restore functionality to the old radio.

更换一个故障的固定电容器可以恢复老式收音机的功能。

3.The audio amplifier circuit uses a fixed capacitor to stabilize the voltage levels.

音频放大器电路使用一个固定电容器来稳定电压水平。

4.In power supply designs, a fixed capacitor can help filter out noise from the input.

在电源设计中，固定电容器可以帮助过滤输入噪声。

5.A fixed capacitor is often used in tuning circuits for radios and televisions.

在收音机和电视的调谐电路中，通常使用固定电容器。

作文

In the world of electronics, capacitors play a crucial role in various applications, ranging from power supply circuits to audio equipment. One type of capacitor that is widely used is the fixed capacitor. A fixed capacitor is a passive electronic component that stores electrical energy in an electric field. Unlike variable capacitors, which can change their capacitance value, fixed capacitors have a constant capacitance value that is determined during manufacturing. This characteristic makes them reliable for many applications where stability is essential.The construction of a fixed capacitor typically involves two conductive plates separated by an insulating material called a dielectric. The dielectric can be made from various materials, including ceramic, plastic, or electrolytic substances, each offering different properties and performance characteristics. For example, ceramic fixed capacitors are known for their high stability and low loss, making them ideal for high-frequency applications.One of the main advantages of using a fixed capacitor is its simplicity. Because they do not require any adjustments or tuning, they can be easily integrated into circuits without the need for additional components. This simplicity also contributes to the reliability of the circuit, as there are fewer points of failure compared to circuits that utilize variable capacitors.Moreover, fixed capacitors come in a wide range of capacitance values, allowing engineers to select the appropriate size for their specific application. Whether it’s for bypassing, filtering, or coupling purposes, there is likely a fixed capacitor that meets the required specifications. For instance, in power supply circuits, fixed capacitors are often used to smooth out voltage fluctuations, ensuring a stable output.In addition to their practical applications, fixed capacitors also have significant implications in the design of electronic devices. The choice of a fixed capacitor can affect the overall performance, efficiency, and reliability of the device. Therefore, engineers must carefully consider the specifications of the fixed capacitor, such as its voltage rating, temperature coefficient, and equivalent series resistance (ESR), when designing a circuit.The importance of fixed capacitors extends beyond just individual components; they are integral to the functionality of entire systems. In audio equipment, for example, fixed capacitors are used in crossover networks to separate different frequency ranges, ensuring that each driver receives the appropriate signals. Similarly, in radio frequency applications, fixed capacitors help to tune circuits to specific frequencies, enhancing signal clarity and strength.In conclusion, the fixed capacitor is a fundamental component in the realm of electronics, providing essential functions across a variety of applications. Its fixed nature offers stability and reliability, making it a preferred choice for many engineers. As technology continues to advance, the role of fixed capacitors will remain vital in the development of new electronic devices, ensuring that they operate efficiently and effectively. Understanding the characteristics and applications of fixed capacitors is crucial for anyone involved in the field of electronics, as they are key to achieving optimal performance in electronic designs.

在电子世界中，电容器在各种应用中发挥着至关重要的作用，从电源电路到音频设备。其中一种广泛使用的电容器是固定电容器。固定电容器是一种被动电子元件，它在电场中储存电能。与可变电容器不同，后者可以改变其电容值，固定电容器具有在制造过程中确定的恒定电容值。这一特性使它们在许多需要稳定性的应用中非常可靠。固定电容器的构造通常涉及两个导电板，中间隔着一种称为介质的绝缘材料。介质可以由多种材料制成，包括陶瓷、塑料或电解物质，每种材料都提供不同的特性和性能。例如，陶瓷固定电容器以其高稳定性和低损耗而闻名，使其非常适合高频应用。使用固定电容器的主要优点之一是其简单性。由于它们不需要任何调整或调谐，因此可以轻松集成到电路中，而无需额外的组件。这种简单性也有助于电路的可靠性，因为与使用可变电容器的电路相比，故障点较少。此外，固定电容器有多种电容值可供选择，使工程师能够为特定应用选择合适的尺寸。无论是用于旁路、滤波还是耦合目的，都可能存在满足所需规格的固定电容器。例如，在电源电路中，固定电容器通常用于平滑电压波动，确保输出稳定。除了实际应用之外，固定电容器在电子设备设计中也具有重要意义。固定电容器的选择会影响设备的整体性能、效率和可靠性。因此，工程师在设计电路时必须仔细考虑固定电容器的规格，如其电压额定值、温度系数和等效串联电阻（ESR）。固定电容器的重要性不仅限于单个组件；它们对于整个系统的功能至关重要。例如，在音频设备中，固定电容器用于分频网络，以分离不同的频率范围，确保每个驱动器接收适当的信号。同样，在射频应用中，固定电容器帮助将电路调谐到特定频率，从而增强信号的清晰度和强度。总之，固定电容器是电子领域的基本组件，在各种应用中提供必要的功能。它的固定特性提供了稳定性和可靠性，使其成为许多工程师的首选。随着技术的不断进步，固定电容器的角色将在新电子设备的开发中继续发挥重要作用，确保它们高效有效地运行。理解固定电容器的特性和应用对于任何参与电子领域的人来说都是至关重要的，因为它们是实现电子设计最佳性能的关键。