avalanche voltage

简明释义

雪崩电压;

英英释义

例句

1.Engineers must ensure that the circuit does not exceed the avalanche voltage during operation.

工程师必须确保电路在运行期间不超过雪崩电压。

2.The diode begins to conduct significantly when the reverse voltage exceeds the avalanche voltage.

当反向电压超过雪崩电压时，二极管开始显著导通。

3.The breakdown of the transistor occurs at the avalanche voltage level, causing it to fail.

晶体管在雪崩电压水平下发生击穿，导致其失效。

4.The avalanche voltage is a critical parameter in designing safe electrical systems.

雪崩电压是设计安全电气系统的关键参数。

5.In high-voltage applications, it's crucial to know the avalanche voltage of the components used.

在高压应用中，了解所用组件的雪崩电压至关重要。

作文

Understanding the concept of avalanche voltage is essential for those engaged in the fields of electronics and electrical engineering. This term refers to the specific voltage level at which a semiconductor device, such as a diode or transistor, undergoes a sudden increase in current due to the breakdown of the material's insulating properties. When the applied voltage exceeds this critical threshold, it triggers a phenomenon known as avalanche breakdown, where free charge carriers in the semiconductor material multiply rapidly. This results in a significant surge of current that can potentially damage the device if not controlled properly.The physics behind avalanche voltage is rooted in the behavior of electrons within a semiconductor. Under normal operating conditions, a semiconductor behaves as an insulator until a certain voltage is applied. However, when the voltage reaches the avalanche voltage, the electric field becomes strong enough to ionize atoms within the material. This process generates additional free electrons, which in turn collide with other atoms, creating even more free electrons in a cascading effect. This chain reaction continues until the current increases dramatically.In practical applications, understanding avalanche voltage is crucial for designing circuits that include diodes and transistors. Engineers must ensure that the operating voltage remains below this threshold to prevent unintentional breakdowns. For instance, in Zener diodes, which are designed to operate in reverse breakdown mode, the avalanche voltage is intentionally utilized to maintain a stable output voltage. By carefully selecting components based on their avalanche voltage, engineers can create reliable electronic devices that function efficiently under varying conditions.Moreover, the avalanche voltage can vary significantly among different materials and device structures. Factors such as temperature, doping concentration, and the physical dimensions of the semiconductor can influence this critical voltage level. For example, silicon-based devices typically exhibit a different avalanche voltage compared to gallium arsenide devices. As technology advances, the development of new materials and fabrication techniques allows engineers to tailor the avalanche voltage to meet specific application requirements, making it an area of ongoing research.In conclusion, the understanding of avalanche voltage is vital for anyone working with semiconductor devices. This concept not only helps in preventing potential failures in electronic circuits but also opens up avenues for innovation in device design. By mastering the principles surrounding avalanche voltage, engineers can enhance the performance and reliability of electronic systems, paving the way for future advancements in technology.

理解雪崩电压的概念对于从事电子和电气工程领域的人来说至关重要。这个术语指的是半导体器件（如二极管或晶体管）在其绝缘特性发生突变时所需的特定电压水平。当施加电压超过这个临界阈值时，会触发一种称为雪崩击穿的现象，在这种情况下，半导体材料中的自由电荷载流子迅速增加。这导致电流的显著激增，如果没有适当控制，可能会损坏设备。雪崩电压背后的物理学源于半导体中电子的行为。在正常操作条件下，半导体在施加一定电压之前表现为绝缘体。然而，当电压达到雪崩电压时，电场变得足够强大以使材料中的原子电离。这个过程产生额外的自由电子，这些电子与其他原子碰撞，从而在级联效应中创造出更多自由电子。这一连锁反应持续进行，直到电流急剧增加。在实际应用中，理解雪崩电压对于设计包含二极管和晶体管的电路至关重要。工程师必须确保工作电压保持在这一阈值以下，以防止意外击穿。例如，在齐纳二极管中，设计用于在反向击穿模式下工作，故意利用雪崩电压来维持稳定的输出电压。通过根据雪崩电压仔细选择组件，工程师可以创建在不同条件下高效工作的可靠电子设备。此外，不同材料和器件结构之间的雪崩电压可能存在显著差异。温度、掺杂浓度和半导体的物理尺寸等因素都可以影响这个关键电压水平。例如，基于硅的器件通常表现出与基于砷化镓的器件不同的雪崩电压。随着技术的进步，新材料和制造技术的发展使工程师能够根据特定应用要求调整雪崩电压，这也是一个持续研究的领域。总之，掌握雪崩电压的理解对于任何从事半导体器件工作的人都是至关重要的。这个概念不仅有助于防止电子电路中的潜在故障，而且还为器件设计中的创新开辟了途径。通过掌握围绕雪崩电压的原理，工程师可以提高电子系统的性能和可靠性，为未来技术的进步铺平道路。