active device

简明释义

有源器件;

英英释义

例句

1.The active device in this setup requires a power source to function.

这个设置中的主动设备需要电源才能工作。

2.A smartphone is considered an active device because it processes information.

智能手机被认为是一个主动设备，因为它处理信息。

3.An active device can be a transistor or an integrated circuit.

主动设备可以是晶体管或集成电路。

4.In telecommunications, an active device is essential for transmitting data.

在电信中，主动设备对于数据传输至关重要。

5.The active device in this circuit helps to amplify the signal.

这个电路中的主动设备有助于放大信号。

作文

In the world of electronics, devices can be categorized into two main types: passive devices and active devices. An active device (主动元件) is one that requires an external power source to operate and can control the flow of electricity. Examples of active devices (主动元件) include transistors, diodes, and integrated circuits. These devices are essential in modern technology, as they amplify signals, switch currents, and perform various other functions that are crucial for electronic systems.The significance of active devices (主动元件) in electronic circuits cannot be overstated. For instance, transistors serve as the building blocks of modern electronic devices. They can act as switches or amplifiers, making them vital for everything from simple radios to complex computers. Without active devices (主动元件), it would be impossible to create the high-performance electronics we rely on today.Another critical aspect of active devices (主动元件) is their ability to manipulate electrical signals. Diodes, for example, allow current to flow in one direction only, which is essential for converting alternating current (AC) to direct current (DC). This property makes diodes indispensable in power supply circuits and many other applications. Similarly, operational amplifiers, a type of active device (主动元件), are widely used in signal processing and control systems, providing the necessary amplification and signal conditioning.Furthermore, the development of integrated circuits (ICs) has revolutionized the field of electronics. An IC can contain thousands or even millions of active devices (主动元件) on a single chip, drastically reducing the size and cost of electronic systems while increasing their functionality. This miniaturization has paved the way for portable devices such as smartphones, tablets, and wearable technology, which have become integral parts of our daily lives.In conclusion, understanding the role of active devices (主动元件) is crucial for anyone interested in electronics or technology. These devices not only enable the operation of electronic circuits but also drive innovation and advancements in various fields. As technology continues to evolve, the importance of active devices (主动元件) will only grow, leading to more sophisticated and efficient electronic systems that enhance our lives in countless ways.