reverse biased

简明释义

反向偏压

英英释义

例句

1.When measuring the characteristics of a transistor, it is important to ensure that the base-emitter junction is reverse biased to avoid unwanted conduction.

在测量晶体管特性时，确保基极-发射极结是反向偏置的，以避免不必要的导电是很重要的。

2.The photodiode operates in a reverse biased mode to enhance its sensitivity to light.

光电二极管在反向偏置模式下工作，以提高其对光的灵敏度。

3.In semiconductor physics, a diode is said to be reverse biased when the voltage is applied in the opposite direction, preventing current flow.

在半导体物理中，当电压以相反方向施加时，二极管被称为反向偏置，从而阻止电流流动。

4.A reverse biased capacitor can be used to block DC voltage while allowing AC signals to pass through.

一个反向偏置电容器可以用于阻止直流电压，同时允许交流信号通过。

5.In a solar cell, the junction can become reverse biased under certain conditions, affecting its efficiency.

在太阳能电池中，在某些条件下，结可能变得反向偏置，影响其效率。

作文

In the world of electronics, understanding how components behave under different conditions is crucial for designing efficient circuits. One term that often comes up in discussions about semiconductor devices is reverse biased. This term refers to a specific condition in which a diode or similar device is subjected to a voltage in the opposite direction to its intended forward bias. When a diode is reverse biased, it allows very little current to flow, effectively blocking the passage of electricity. This characteristic is fundamental to the operation of various electronic components, including rectifiers, voltage regulators, and signal modulators.To illustrate the concept of reverse biased, consider a simple circuit with a diode. When the diode is connected in the forward direction, it conducts electricity, allowing current to flow freely. However, when the voltage is applied in the reverse direction, the diode enters a reverse biased state. In this state, the depletion region within the diode widens, preventing significant current from passing through. This behavior is essential for protecting sensitive components in a circuit, as it ensures that current flows only in the desired direction.The reverse biased state also plays a critical role in the functioning of Zener diodes, which are designed to operate in this mode. A Zener diode is specifically engineered to allow reverse current to flow when a certain breakdown voltage is reached. This property makes Zener diodes invaluable in voltage regulation applications, where they maintain a stable output voltage despite variations in input voltage or load conditions.Furthermore, understanding the implications of reverse biased conditions can help engineers troubleshoot and optimize circuit designs. For example, if a circuit is experiencing unexpected behavior, one potential issue could be that a diode is inadvertently kept in a reverse biased state, leading to insufficient current flow. By examining the voltage levels and ensuring that diodes are correctly oriented, engineers can rectify such issues and enhance the performance of their circuits.In summary, the concept of reverse biased is integral to the operation of many electronic devices. It denotes a condition that prevents current flow in the undesired direction, thereby ensuring the stability and reliability of electronic circuits. As technology continues to advance, a thorough understanding of such concepts will remain essential for both aspiring engineers and seasoned professionals alike. The ability to manipulate and utilize reverse biased configurations opens up a range of possibilities in circuit design, making it a fundamental aspect of modern electronics.

在电子世界中，理解组件在不同条件下的行为对于设计高效电路至关重要。一个在讨论半导体设备时经常出现的术语是反向偏置。这个术语指的是二极管或类似设备在施加与其预期正向偏置相反的电压时的特定状态。当二极管处于反向偏置状态时，它允许非常少的电流流动，有效地阻止电流通过。这一特性是各种电子组件（包括整流器、稳压器和信号调制器）操作的基础。为了说明反向偏置的概念，考虑一个简单的带二极管的电路。当二极管以正向方向连接时，它导电，允许电流自由流动。然而，当电压以反向施加时，二极管进入反向偏置状态。在这种状态下，二极管内的耗尽区变宽，阻止显著的电流通过。这一行为对于保护电路中的敏感组件至关重要，因为它确保电流仅在所需方向流动。反向偏置状态在齐纳二极管的功能中也扮演着关键角色，齐纳二极管被设计为在此模式下工作。齐纳二极管专门设计成在达到某个击穿电压时允许反向电流流动。这一特性使得齐纳二极管在稳压应用中不可或缺，在这些应用中，它们能够保持稳定的输出电压，尽管输入电压或负载条件发生变化。此外，理解反向偏置条件的影响可以帮助工程师排除故障并优化电路设计。例如，如果电路出现意外行为，一个潜在的问题可能是二极管无意中保持在反向偏置状态，从而导致电流不足。通过检查电压水平并确保二极管正确定向，工程师可以纠正此类问题并提高电路的性能。总之，反向偏置的概念是许多电子设备操作的核心。它表示一种阻止电流朝不希望方向流动的状态，从而确保电子电路的稳定性和可靠性。随着技术的不断进步，深入理解这样的概念将对有志于成为工程师的人和经验丰富的专业人士保持至关重要。操控和利用反向偏置配置的能力为电路设计打开了一系列可能性，使其成为现代电子学的基础方面。