parasitic oscillation

简明释义

寄生振荡

英英释义

例句

1.To improve performance, we need to minimize parasitic oscillation in our RF amplifier design.

为了提高性能，我们需要在射频放大器设计中最小化寄生振荡。

2.The engineer discovered that the circuit was affected by parasitic oscillation, which caused unwanted noise in the signal.

工程师发现电路受到寄生振荡的影响，导致信号中出现了不必要的噪音。

3.The PCB layout was revised to reduce the effects of parasitic oscillation between components.

PCB布局经过修订，以减少元件之间的寄生振荡影响。

4.After testing, it was clear that the parasitic oscillation was a major contributor to the system's malfunction.

测试后，很明显寄生振荡是系统故障的主要原因。

5.In high-frequency circuits, parasitic oscillation can lead to instability and reduced efficiency.

在高频电路中，寄生振荡可能导致不稳定和效率降低。

作文

In the world of electronics and signal processing, understanding various phenomena is crucial for designing efficient systems. One such phenomenon that often poses challenges to engineers is parasitic oscillation. This term refers to unwanted oscillations that occur in electronic circuits due to unintended feedback paths or resonances. These oscillations can lead to instability, distortion, and even damage to components if not properly managed. Therefore, grasping the concept of parasitic oscillation is essential for anyone involved in circuit design or signal integrity analysis.To better understand parasitic oscillation, it is important to first recognize how oscillation occurs in a circuit. Oscillation is a repetitive variation, typically in time, of some measure about a central value. In electronic circuits, this can be caused by the interaction between capacitors, inductors, and resistors. While intentional oscillators are designed to produce specific frequencies for desired applications, parasitic oscillation arises as an unintended consequence of circuit layout and component characteristics.One common scenario where parasitic oscillation can be observed is in amplifiers. When an amplifier is designed, engineers strive to create a stable gain across a range of frequencies. However, if there are feedback loops formed unintentionally due to layout or component placement, these loops can introduce phase shifts that lead to oscillations at certain frequencies. This is particularly problematic in high-frequency applications where the speed of signals can exacerbate the effects of these unwanted oscillations.Another area where parasitic oscillation can manifest is in RF (radio frequency) circuits. In RF applications, even small amounts of parasitic capacitance or inductance can significantly affect performance. For instance, if a circuit board has traces that are too long or poorly routed, they can act as unintended inductors or capacitors, creating conditions ripe for parasitic oscillation. This can result in interference, signal degradation, and reduced performance of the entire system.Preventing parasitic oscillation requires careful design practices. Engineers must consider the layout of the circuit board, ensuring that components are placed optimally to minimize unwanted feedback paths. Additionally, using proper grounding techniques and shielding can help to reduce the risk of oscillations. Simulation tools are also invaluable in predicting where parasitic oscillation might occur, allowing designers to make adjustments before physical prototypes are built.In conclusion, parasitic oscillation is a critical concept in the field of electronics that highlights the importance of careful circuit design. By understanding the causes and implications of these unwanted oscillations, engineers can create more reliable and efficient electronic systems. As technology continues to advance, the need for high-performance circuits will only increase, making it imperative for professionals in the field to remain vigilant against the challenges posed by parasitic oscillation.

在电子和信号处理的世界中，理解各种现象对于设计高效系统至关重要。其中一个常常给工程师带来挑战的现象是寄生振荡。这个术语指的是由于意外反馈路径或共振而发生的电子电路中的不必要振荡。这些振荡如果没有得到适当管理，可能导致不稳定、失真甚至损坏组件。因此，掌握寄生振荡的概念对任何参与电路设计或信号完整性分析的人来说都是必不可少的。为了更好地理解寄生振荡，首先重要的是认识到振荡在电路中是如何发生的。振荡是指某个测量值围绕中心值的重复变化，通常是时间上的变化。在电子电路中，这可能是由电容器、电感器和电阻器之间的相互作用引起的。虽然有意的振荡器被设计用来产生特定频率以满足期望的应用，但寄生振荡则是电路布局和组件特性所导致的意外结果。在放大器中，常常可以观察到寄生振荡的情况。当设计放大器时，工程师努力在一定频率范围内创造稳定的增益。然而，如果由于布局或组件放置而不小心形成了反馈回路，这些回路可能会引入相位偏移，从而导致在某些频率下发生振荡。这在高频应用中特别成问题，因为信号的速度会加剧这些不必要振荡的影响。寄生振荡还可以在RF（射频）电路中显现。在RF应用中，即使是微小的寄生电容或电感也会显著影响性能。例如，如果电路板的走线过长或布线不良，它们可能会作为意想不到的电感器或电容器，从而制造出适合寄生振荡发生的条件。这可能导致干扰、信号退化以及整个系统性能的降低。防止寄生振荡需要仔细的设计实践。工程师必须考虑电路板的布局，确保组件最佳放置，以最小化不必要的反馈路径。此外，使用适当的接地技术和屏蔽可以帮助降低振荡的风险。仿真工具在预测寄生振荡可能发生的地方也非常宝贵，使设计人员能够在物理原型构建之前做出调整。总之，寄生振荡是电子领域中的一个关键概念，突显了仔细电路设计的重要性。通过理解这些不必要振荡的原因和影响，工程师可以创建更可靠和高效的电子系统。随着技术的不断进步，对高性能电路的需求只会增加，这使得该领域的专业人员必须对寄生振荡所带来的挑战保持警惕。