phase locking circuit

简明释义

相位同步电路

英英释义

例句

1.The radio transmitter uses a phase locking circuit to ensure stable frequency output.

无线电发射机使用相位锁定电路以确保频率输出稳定。

2.A phase locking circuit can improve the performance of frequency synthesizers.

相位锁定电路可以提高频率合成器的性能。

3.In digital communication, a phase locking circuit is crucial for maintaining synchronization.

在数字通信中，相位锁定电路对于保持同步至关重要。

4.The design of the phase locking circuit minimizes jitter in the clock signal.

该相位锁定电路的设计最小化了时钟信号中的抖动。

5.Engineers often rely on a phase locking circuit for precise control in servo systems.

工程师们通常依赖于相位锁定电路来实现伺服系统的精确控制。

作文

In the world of electronics and telecommunications, the concept of a phase locking circuit plays a crucial role in ensuring signal integrity and synchronization. A phase locking circuit (相位锁定电路) is a feedback control system that locks the phase of an output signal to the phase of a reference signal. This technology is widely used in various applications, including radio transmitters, receivers, and digital communication systems.The basic operation of a phase locking circuit involves comparing the phase of the input signal with that of the output signal. When there is a phase difference between these two signals, the circuit generates a control signal that adjusts the output signal's frequency or phase accordingly. This adjustment continues until the output signal is synchronized with the reference signal, effectively 'locking' the phase.One of the most common applications of a phase locking circuit is in phase-locked loops (PLLs). PLLs are essential components in modern electronics, allowing for frequency synthesis, demodulation, and clock recovery. For instance, in a radio receiver, a PLL can be used to extract the carrier frequency from a modulated signal, enabling clear audio reception. Similarly, in digital circuits, PLLs help maintain timing accuracy by synchronizing different clock signals, which is vital for the proper functioning of microprocessors and memory devices.The advantages of using a phase locking circuit are numerous. Firstly, they provide high stability and accuracy in frequency generation, which is essential for reliable communication systems. Secondly, they can operate over a wide range of frequencies, making them versatile for various applications. Lastly, phase locking circuits are relatively simple to implement, often requiring minimal external components, which contributes to cost-effectiveness in electronic designs.However, there are also challenges associated with phase locking circuits. For example, achieving a fast lock time can be difficult, especially in systems where rapid frequency changes occur. Additionally, the performance of a phase locking circuit can be affected by noise and other environmental factors, which may lead to degradation in signal quality. Therefore, engineers must carefully design these circuits to optimize their performance under varying conditions.In conclusion, the phase locking circuit (相位锁定电路) is an indispensable component in modern electronics, providing essential functionalities in signal processing and communication systems. Its ability to maintain synchronization between signals ensures that data transmission remains accurate and reliable. As technology continues to advance, the importance of phase locking circuits will only grow, paving the way for innovations in telecommunications, broadcasting, and digital electronics. Understanding the principles behind these circuits is crucial for anyone aspiring to work in the field of electronics, as they form the backbone of many sophisticated systems we rely on today.

在电子和电信的世界中，相位锁定电路的概念在确保信号完整性和同步方面发挥着至关重要的作用。相位锁定电路（phase locking circuit）是一种反馈控制系统，它将输出信号的相位锁定到参考信号的相位。这项技术广泛应用于各种应用中，包括无线电发射机、接收机和数字通信系统。相位锁定电路的基本操作涉及比较输入信号的相位与输出信号的相位。当这两个信号之间存在相位差时，电路会生成一个控制信号，以相应地调整输出信号的频率或相位。这种调整会持续进行，直到输出信号与参考信号同步，从而有效地“锁定”相位。相位锁定电路最常见的应用之一是锁相环（PLLs）。锁相环是现代电子产品中的基本组件，允许频率合成、解调和时钟恢复。例如，在无线电接收器中，PLL可以用于从调制信号中提取载波频率，从而实现清晰的音频接收。类似地，在数字电路中，PLL通过同步不同的时钟信号来帮助保持时序精度，这对于微处理器和存储设备的正常运行至关重要。使用相位锁定电路的优势有很多。首先，它们提供高稳定性和频率生成的准确性，这对于可靠的通信系统至关重要。其次，它们可以在宽频率范围内运行，使其在各种应用中都具有灵活性。最后，相位锁定电路相对容易实现，通常只需最少的外部组件，这有助于电子设计的成本效益。然而，相位锁定电路也面临一些挑战。例如，在频繁发生快速频率变化的系统中，实现快速锁定时间可能会很困难。此外，相位锁定电路的性能可能会受到噪声和其他环境因素的影响，这可能导致信号质量下降。因此，工程师必须仔细设计这些电路，以优化它们在不同条件下的性能。总之，相位锁定电路（相位锁定电路）是现代电子产品中不可或缺的组件，为信号处理和通信系统提供了基本功能。它维持信号之间的同步能力确保数据传输保持准确和可靠。随着技术的不断进步，相位锁定电路的重要性只会增加，为电信、广播和数字电子的创新铺平道路。理解这些电路背后的原理对于任何希望在电子领域工作的人来说都是至关重要的，因为它们构成了我们今天依赖的许多复杂系统的基础。