reverse biased current

简明释义

反向偏置电流

英英释义

例句

1.In a diode, when the voltage is applied in the opposite direction, it leads to a flow of reverse biased current (反向偏置电流).

在二极管中，当电压以相反方向施加时，会导致<正在流动的反向偏置电流。

2.A high reverse biased current (反向偏置电流) could indicate a potential failure in the device.

高<正在流动的反向偏置电流可能表明设备潜在的故障。

3.The reverse biased current (反向偏置电流) can affect the performance of semiconductor devices.

<正在流动的反向偏置电流可能会影响半导体器件的性能。

4.Engineers must consider the reverse biased current (反向偏置电流) when designing circuits for high-voltage applications.

工程师在设计高电压应用电路时，必须考虑<正在流动的反向偏置电流。

5.During testing, we observed a significant amount of reverse biased current (反向偏置电流) in the junction.

在测试过程中，我们观察到接合处有大量的<正在流动的反向偏置电流。

作文

In the field of electronics, understanding the behavior of semiconductor devices is crucial. One important concept that often arises in discussions about diodes and transistors is the notion of reverse biased current. This term refers to the current that flows through a semiconductor device when it is reverse biased, meaning that the voltage across the device is applied in the opposite direction to its normal operating condition. In simpler terms, when a diode is connected in such a way that it blocks current flow, any small amount of current that does flow is referred to as reverse biased current (反向偏置电流). To explore this further, let’s consider a typical silicon diode. When the diode is forward biased, it allows current to pass through easily. However, when the polarity of the voltage is reversed, the diode becomes reverse biased. Under these conditions, ideally, no current should flow. Nevertheless, due to the presence of minority charge carriers, a small amount of current does flow, which is categorized as reverse biased current. This current is typically very minimal and is often considered negligible in many applications. However, it is essential in certain situations, such as in the design of amplifiers and oscillators.The significance of reverse biased current can be observed when analyzing the characteristics of a diode. The current-voltage (I-V) curve of a diode illustrates a distinct region where the diode operates in reverse bias. In this region, the reverse biased current remains relatively constant until a breakdown voltage is reached. At this point, the diode may conduct a large amount of current, leading to potential damage if not properly managed. This phenomenon is known as avalanche breakdown, and it highlights the importance of understanding reverse biased current in circuit design.Moreover, the concept of reverse biased current extends beyond diodes and is equally relevant in the context of transistors. In bipolar junction transistors (BJTs), for instance, the base-emitter junction can also be reverse biased. This configuration is crucial for switching applications, where controlling the flow of current is necessary. The reverse biased current in this case helps to maintain the transistor in an off state until it is needed to switch on.In practical applications, engineers must consider the implications of reverse biased current when designing circuits. For example, in precision analog circuits, any unintended reverse biased current can introduce noise and affect the performance of the system. Therefore, understanding how to manage this current is vital for achieving desired outcomes in electronic designs.In conclusion, the term reverse biased current plays a significant role in the understanding of semiconductor devices, particularly diodes and transistors. It refers to the small amount of current that flows when a device is reverse biased, which can have critical implications in various electronic applications. By grasping this concept, engineers can better design and optimize circuits to ensure reliable performance. Overall, mastering the idea of reverse biased current is essential for anyone looking to delve deeper into the world of electronics and semiconductor technology.

在电子学领域，理解半导体器件的行为至关重要。一个经常在关于二极管和晶体管的讨论中出现的重要概念是反向偏置电流。这个术语指的是在半导体器件被反向偏置时流过的电流，即施加在器件上的电压方向与其正常工作条件相反。简单来说，当二极管以阻止电流流动的方式连接时，任何少量流动的电流都被称为反向偏置电流。为了进一步探讨这一点，让我们考虑一个典型的硅二极管。当二极管正向偏置时，它允许电流轻松通过。然而，当电压的极性被反转时，二极管变为反向偏置。在这种情况下，理想情况下，不应有电流流动。然而，由于存在少数载流子，仍然会有少量电流流动，这被归类为反向偏置电流。这种电流通常非常微小，在许多应用中被认为是可以忽略不计的。然而，在某些情况下，它是至关重要的，例如在放大器和振荡器的设计中。反向偏置电流的重要性可以通过分析二极管的特性来观察。二极管的电流-电压（I-V）曲线显示了一个明显的区域，在该区域内二极管在反向偏置下工作。在这个区域中，反向偏置电流保持相对恒定，直到达到击穿电压。此时，二极管可能会导通大量电流，如果没有妥善管理，可能会导致潜在的损坏。这种现象被称为雪崩击穿，它突显了在电路设计中理解反向偏置电流的重要性。此外，反向偏置电流的概念超越了二极管，在晶体管的上下文中同样相关。例如，在双极结晶体管（BJT）中，基极-发射极结也可以被反向偏置。这种配置对于开关应用至关重要，在这些应用中，控制电流的流动是必要的。在这种情况下，反向偏置电流有助于将晶体管维持在关闭状态，直到需要打开它。在实际应用中，工程师在设计电路时必须考虑反向偏置电流的影响。例如，在精密模拟电路中，任何意外的反向偏置电流都可能引入噪声并影响系统的性能。因此，理解如何管理这种电流对于实现电子设计中的期望结果至关重要。总之，术语反向偏置电流在理解半导体器件，特别是二极管和晶体管方面发挥着重要作用。它指的是在器件反向偏置时流动的少量电流，这在各种电子应用中可能具有关键意义。通过掌握这一概念，工程师可以更好地设计和优化电路，以确保可靠的性能。总的来说，掌握反向偏置电流的概念对于任何希望深入了解电子和半导体技术的人来说都是必不可少的。