passive component

简明释义

无源元件

英英释义

例句

1.Resistors and capacitors are common types of passive components 被动元件 used in electronic devices.

电阻器和电容器是电子设备中常用的被动元件 passive components。

2.When designing a circuit, it's important to choose the right passive components 被动元件 for optimal performance.

在设计电路时，选择合适的被动元件 passive components 对于最佳性能至关重要。

3.Inductors are another type of passive component 被动元件 that can resist changes in current.

电感器是另一种可以抵抗电流变化的被动元件 passive component。

4.The passive component 被动元件 does not amplify the signal, but it can store energy.

该被动元件 passive component 不会放大信号，但可以储存能量。

5.In this circuit, the passive component 被动元件 acts as a filter to remove unwanted frequencies.

在这个电路中，被动元件 passive component 作为滤波器去除不必要的频率。

作文

In the world of electronics, understanding the different types of components is crucial for designing and building circuits effectively. Among these components, the term passive component refers to elements that do not require an external power source to operate. Unlike active components, which can amplify signals or generate power, passive components simply store or dissipate energy. Examples of passive components include resistors, capacitors, and inductors.Resistors are perhaps the most common type of passive component. They are used to control the flow of electric current in a circuit. By providing resistance, they limit the amount of current that can pass through, thus protecting sensitive components from damage. This ability to regulate current makes resistors essential in nearly all electronic devices. For instance, in a simple LED circuit, a resistor is necessary to ensure that the LED receives the appropriate amount of current, preventing it from burning out.Capacitors, another vital category of passive components, store electrical energy temporarily. They consist of two conductive plates separated by an insulating material, known as a dielectric. When a voltage is applied across the plates, an electric field forms, allowing the capacitor to store charge. Capacitors are widely used in various applications, such as filtering out noise in power supplies or smoothing out voltage fluctuations in signal processing circuits. Their ability to release stored energy quickly makes them invaluable in timing circuits and energy storage systems.Inductors, on the other hand, are passive components that store energy in a magnetic field when electric current flows through them. They are typically made of a coil of wire and are used in applications such as transformers and chokes. Inductors oppose changes in current, making them useful for filtering and managing power in electronic circuits. In radio frequency applications, inductors play a crucial role in tuning circuits to specific frequencies, allowing for better signal reception and transmission.One of the key characteristics of passive components is that they cannot introduce gain into a circuit. This means that they cannot amplify signals or provide power on their own. Instead, they work alongside active components, such as transistors and operational amplifiers, which can manipulate and enhance signals. The interaction between active and passive components is fundamental to the functioning of modern electronic devices, from smartphones to computers.In conclusion, passive components are essential building blocks in the field of electronics. Their ability to store, dissipate, and regulate energy without requiring an external power source makes them indispensable in circuit design. Understanding how to use passive components effectively allows engineers and hobbyists alike to create functional and reliable electronic systems. As technology continues to evolve, the importance of mastering these components remains a cornerstone of electronics education and practice.

在电子世界中，理解不同类型的组件对于有效设计和构建电路至关重要。在这些组件中，术语被动元件指的是不需要外部电源来操作的元件。与可以放大信号或产生电力的主动元件不同，被动元件仅仅存储或耗散能量。被动元件的例子包括电阻器、电容器和电感器。电阻器可能是最常见的被动元件。它们用于控制电路中的电流流动。通过提供电阻，它们限制可通过的电流量，从而保护敏感组件免受损坏。这种调节电流的能力使得电阻器在几乎所有电子设备中都是必不可少的。例如，在一个简单的LED电路中，电阻器是必要的，以确保LED接收到适当的电流，防止其烧坏。电容器是另一类重要的被动元件，它们暂时存储电能。它们由两个导电板和一种称为介质的绝缘材料分隔而成。当在板之间施加电压时，会形成电场，使电容器能够存储电荷。电容器在各种应用中广泛使用，如过滤电源中的噪声或平滑信号处理电路中的电压波动。它们快速释放存储能量的能力使其在定时电路和能量存储系统中不可或缺。另一方面，电感器是被动元件，当电流通过它们时，会在磁场中存储能量。它们通常由一圈导线制成，并用于变压器和电感器等应用。电感器反对电流的变化，使其在电子电路中用于过滤和管理电源。在射频应用中，电感器在调谐电路中发挥着关键作用，使其能够调谐到特定频率，从而提高信号接收和传输的质量。被动元件的一个关键特性是它们不能在电路中引入增益。这意味着它们不能单独放大信号或提供电力。相反，它们与主动元件（如晶体管和运算放大器）协同工作，后者可以操纵和增强信号。主动和被动元件之间的相互作用是现代电子设备功能的基础，从智能手机到计算机。总之，被动元件是电子领域的重要构建块。它们在不需要外部电源的情况下存储、耗散和调节能量的能力使它们在电路设计中不可或缺。有效地使用被动元件的理解使工程师和爱好者能够创建功能齐全且可靠的电子系统。随着技术的不断发展，掌握这些组件的重要性仍然是电子教育和实践的基石。