balanced amplifier

简明释义

平衡放大器

英英释义

例句

1.When connecting microphones to a mixer, using a balanced amplifier 平衡放大器 helps maintain sound quality.

在将麦克风连接到混音器时，使用平衡放大器 balanced amplifier 有助于保持音质。

2.Using a balanced amplifier 平衡放大器 allows for longer cable runs without signal degradation.

使用平衡放大器 balanced amplifier 可以实现更长的电缆运行而不会导致信号衰减。

3.Many audiophiles prefer a balanced amplifier 平衡放大器 for its superior performance in high-end audio setups.

许多音响爱好者更喜欢使用平衡放大器 balanced amplifier，因为它在高端音频设备中的表现优越。

4.A balanced amplifier 平衡放大器 can significantly improve the clarity of sound in live performances.

在现场表演中，平衡放大器 balanced amplifier 可以显著提高声音的清晰度。

5.In professional audio systems, a balanced amplifier 平衡放大器 is essential for reducing noise interference.

在专业音频系统中，平衡放大器 balanced amplifier 对于减少噪声干扰至关重要。

作文

In the world of electronics, amplifiers play a crucial role in enhancing signals for various applications. One particular type of amplifier that has gained significant attention is the balanced amplifier. A balanced amplifier is designed to amplify the difference between two input signals while rejecting any noise or interference that may be present on both lines. This characteristic makes it particularly useful in audio and communication systems where clarity and fidelity are paramount.The primary advantage of using a balanced amplifier lies in its ability to minimize common-mode noise. Common-mode noise refers to unwanted signals that affect both input lines equally. In environments with high electromagnetic interference, such as industrial settings or concerts, this noise can significantly degrade the quality of the output signal. By focusing solely on the differential input, a balanced amplifier ensures that these unwanted signals are effectively cancelled out, resulting in a cleaner and more accurate amplification of the desired signal.Another important aspect of a balanced amplifier is its capability to drive long cable runs without significant signal degradation. Traditional unbalanced amplifiers can suffer from signal loss over long distances, especially when the cables are not properly shielded. However, because a balanced amplifier uses twisted pair cables and differential signaling, it can maintain the integrity of the signal over much longer distances. This feature is particularly beneficial in professional audio setups, where microphones and instruments may need to be placed far from the mixing console.In addition to audio applications, balanced amplifiers are also widely used in data communication systems. In these contexts, they help improve the reliability of data transmission by reducing the likelihood of errors caused by noise. The use of balanced amplifiers in telecommunications ensures that signals remain strong and clear, facilitating effective communication even in challenging environments.The construction of a balanced amplifier typically involves a differential input stage that utilizes operational amplifiers (op-amps) configured to amplify the voltage difference between the two inputs. This design not only enhances the signal but also provides a high level of input impedance, which is essential for preventing loading effects on sensitive sources. Furthermore, the output stage of a balanced amplifier is often designed to drive low-impedance loads, making it suitable for a wide range of applications.In conclusion, the balanced amplifier is an essential component in modern electronic systems, providing superior performance in terms of noise rejection and signal integrity. Whether in audio engineering, telecommunications, or other fields, the benefits of using a balanced amplifier cannot be overstated. Its ability to deliver clear and accurate signals in the presence of noise makes it a valuable tool for engineers and technicians alike. As technology continues to evolve, the importance of balanced amplifiers will undoubtedly grow, paving the way for even more innovative applications in the future.

在电子世界中，放大器在增强各种应用的信号方面发挥着至关重要的作用。特别引人注目的一种放大器是平衡放大器。平衡放大器旨在放大两个输入信号之间的差异，同时拒绝可能存在于两条线路上的任何噪声或干扰。这一特性使其在音频和通信系统中尤为有用，因为清晰度和保真度至关重要。使用平衡放大器的主要优势在于其减少共模噪声的能力。共模噪声是指同时影响两个输入线路的非期望信号。在高电磁干扰的环境中，例如工业环境或音乐会，这种噪声会显著降低输出信号的质量。通过仅关注差分输入，平衡放大器确保这些不必要的信号被有效地消除，从而实现所需信号的更清晰和更准确的放大。平衡放大器的另一个重要方面是其在长电缆运行中驱动信号而不显著衰减的能力。传统的非平衡放大器在长距离传输中可能会遭受信号损失，尤其是在电缆未正确屏蔽的情况下。然而，由于平衡放大器使用扭绞对电缆和差分信号，因此可以在更长的距离内保持信号的完整性。这一特性在专业音频设置中尤为有利，因为麦克风和乐器可能需要远离混音台放置。除了音频应用外，平衡放大器还广泛用于数据通信系统。在这些上下文中，它们通过减少噪声引起的错误的可能性来提高数据传输的可靠性。在电信中使用平衡放大器确保信号保持强大和清晰，即使在极具挑战性的环境中也能有效沟通。平衡放大器的构造通常涉及一个差分输入级，利用配置为放大两个输入之间电压差的运算放大器（op-amp）。这种设计不仅增强了信号，还提供了高输入阻抗，这对于防止对敏感源的负载效应至关重要。此外，平衡放大器的输出级通常设计为驱动低阻抗负载，使其适用于广泛的应用。总之，平衡放大器是现代电子系统中的重要组成部分，在噪声抑制和信号完整性方面提供了卓越的性能。无论是在音频工程、电信还是其他领域，使用平衡放大器的好处都不容小觑。它在噪声存在的情况下提供清晰、准确的信号的能力，使其成为工程师和技术人员的宝贵工具。随着技术的不断发展，平衡放大器的重要性无疑会增加，为未来更具创新性的应用铺平道路。