electronic amplifier

简明释义

电子式放大器

英英释义

例句

1.An electronic amplifier can be used in home theater systems for better audio performance.

在家庭影院系统中使用电子放大器可以获得更好的音频表现。

2.The electronic amplifier helped me achieve the desired volume level without distortion.

这个电子放大器帮助我在没有失真的情况下达到所需的音量水平。

3.Many musicians rely on an electronic amplifier to enhance their instrument's sound.

许多音乐家依赖于电子放大器来增强他们乐器的声音。

4.When choosing an electronic amplifier, consider its power output and compatibility with your speakers.

选择电子放大器时，考虑其功率输出和与扬声器的兼容性。

5.The sound quality improved significantly after I installed a new electronic amplifier.

在我安装了新的电子放大器后，音质显著改善。

作文

In the world of electronics, one cannot overlook the significance of the electronic amplifier. This device plays a crucial role in various applications, ranging from audio equipment to communication systems. An electronic amplifier is designed to increase the power, voltage, or current of a signal, making it stronger and more usable for different purposes. Without amplifiers, many modern technologies would not function as efficiently or effectively as they do today.The basic principle behind an electronic amplifier is relatively simple. It takes a weak input signal and boosts it to a level that can drive speakers, transmitters, or other devices. For example, in an audio system, when you play music from a smartphone or a computer, the sound output may be too weak to be heard clearly through speakers. This is where an electronic amplifier comes into play. It takes the small electrical signals from the audio source and amplifies them to a level that can produce sound at a desirable volume.There are several types of electronic amplifiers, each serving different purposes. The most common types include operational amplifiers, power amplifiers, and RF amplifiers. Operational amplifiers are often used in signal processing applications, while power amplifiers are essential in driving speakers in audio systems. RF amplifiers, on the other hand, are used in radio frequency applications, such as broadcasting and telecommunications.One of the key features of an electronic amplifier is its gain, which refers to the ratio of output signal strength to input signal strength. Gain can be expressed in decibels (dB), and it determines how much the amplifier will increase the signal. For instance, if an amplifier has a gain of 20 dB, it means that the output signal is 100 times stronger than the input signal. Understanding gain is vital for anyone working with electronic amplifiers, as it directly impacts the performance of the entire system.Another important aspect of electronic amplifiers is their efficiency. Efficiency refers to how well an amplifier converts input power into output power without wasting energy as heat. High-efficiency amplifiers are desirable in many applications, especially in battery-powered devices, where conserving energy is crucial. Class D amplifiers, for example, are known for their high efficiency and are commonly used in portable audio devices.In recent years, advancements in technology have led to the development of digital electronic amplifiers. Unlike traditional analog amplifiers, digital amplifiers use digital signals to perform amplification. This allows for greater precision and control over the output signal, resulting in improved sound quality and performance. Digital amplifiers are becoming increasingly popular in modern audio systems due to their compact size and enhanced capabilities.In conclusion, the electronic amplifier is an essential component in the realm of electronics, enabling us to enjoy high-quality sound and efficient communication. From audio devices to telecommunications, electronic amplifiers play a pivotal role in enhancing our technological experiences. As technology continues to evolve, so too will the designs and functionalities of these amplifiers, paving the way for even more innovative applications in the future.

在电子世界中，电子放大器的重要性不容小觑。该设备在各种应用中发挥着至关重要的作用，从音频设备到通信系统。电子放大器旨在提高信号的功率、电压或电流，使其更强大，更适合不同的用途。如果没有放大器，许多现代技术将无法像今天这样高效或有效地运行。电子放大器的基本原理相对简单。它接受一个微弱的输入信号，并将其增强到可以驱动扬声器、发射器或其他设备的水平。例如，在音频系统中，当您从智能手机或计算机播放音乐时，声音输出可能太弱，无法通过扬声器清晰听到。这就是电子放大器发挥作用的地方。它接受来自音频源的小电信号并将其放大到可以产生可取音量的水平。有几种类型的电子放大器，每种都有不同的用途。最常见的类型包括运算放大器、功率放大器和射频放大器。运算放大器通常用于信号处理应用，而功率放大器在音频系统中驱动扬声器方面至关重要。另一方面，射频放大器用于无线电频率应用，例如广播和电信。电子放大器的一个关键特征是增益，增益是指输出信号强度与输入信号强度的比率。增益可以用分贝（dB）表示，它决定了放大器将信号放大多少。例如，如果放大器的增益为20 dB，这意味着输出信号比输入信号强100倍。理解增益对于任何与电子放大器打交道的人来说都是至关重要的，因为它直接影响整个系统的性能。电子放大器的另一个重要方面是效率。效率是指放大器在不浪费能量作为热量的情况下，将输入功率转换为输出功率的能力。在许多应用中，高效率的放大器是受欢迎的，尤其是在电池供电的设备中，节省能源至关重要。例如，D类放大器以其高效率而闻名，通常用于便携式音频设备。近年来，技术的进步导致数字电子放大器的发展。与传统的模拟放大器不同，数字放大器使用数字信号进行放大。这使得对输出信号的精确控制成为可能，从而改善了音质和性能。由于其紧凑的尺寸和增强的功能，数字放大器在现代音频系统中变得越来越受欢迎。总之，电子放大器是电子领域的一个基本组成部分，使我们能够享受高质量的声音和高效的通信。从音频设备到电信，电子放大器在增强我们的技术体验中发挥着关键作用。随着技术的不断发展，这些放大器的设计和功能也将不断演变，为未来更具创新性的应用铺平道路。