duty cycle

简明释义

工作周期

英英释义

例句

1.The duty cycle of this PWM signal is set to 75%, allowing for more power to be delivered to the load.

这个PWM信号的duty cycle设置为75%，允许更多的功率传递给负载。

2.In this application, we need to monitor the duty cycle to ensure the motor does not overheat.

在这个应用中，我们需要监控duty cycle以确保电机不会过热。

3.A higher duty cycle in this circuit leads to increased heat generation, so we need adequate cooling.

在这个电路中，较高的duty cycle会导致热量增加，因此我们需要足够的冷却措施。

4.When designing the system, it's crucial to calculate the duty cycle to avoid component failure.

在设计系统时，计算duty cycle至关重要，以避免组件故障。

5.The laser printer has a duty cycle of 30,000 pages per month, which means it can handle that volume without overheating.

这款激光打印机的duty cycle为每月30,000页，这意味着它可以在不发生过热的情况下处理这个量。

作文

In the realm of electronics and engineering, the term duty cycle refers to the ratio of the time a system is active to the total time it is operational. This concept is crucial in understanding how devices function, particularly those that operate intermittently. For instance, consider a simple light bulb that is designed to be on for a certain period and off for another. The duty cycle can be expressed as a percentage, indicating how much time the device is on compared to the entire cycle. If the light bulb is on for 5 seconds and off for 5 seconds, its duty cycle would be 50%. This means that half of the time, the bulb is actively emitting light, while the other half it is not.The importance of duty cycle extends beyond just light bulbs. In the world of motors and other electromechanical systems, understanding the duty cycle is vital for ensuring longevity and efficiency. Motors, for example, have a specified duty cycle rating that indicates how long they can run at full power before needing to cool down. If a motor operates continuously beyond its rated duty cycle, it risks overheating and may suffer damage. Therefore, engineers must carefully calculate the duty cycle to optimize performance and prevent failures.Another area where duty cycle plays a significant role is in communication systems, particularly in wireless technologies. When transmitting data, devices often do not need to be active all the time. By managing the duty cycle, systems can conserve energy, which is especially important for battery-powered devices. For instance, a sensor might transmit data for only a few seconds every minute, resulting in a low duty cycle. This strategy helps extend the battery life significantly while still maintaining effective communication.Furthermore, the concept of duty cycle is also applicable in the field of pulse-width modulation (PWM). PWM is a technique used to control the power delivered to electrical devices by varying the width of the pulses in a signal. The duty cycle in PWM determines the average power output; a higher duty cycle means more power is delivered to the load. This is commonly used in applications such as dimming lights, controlling motor speeds, and regulating temperature in heating elements.In summary, the duty cycle is a fundamental concept that finds its applications across various fields such as electronics, engineering, and telecommunications. It signifies the proportion of time a system remains active compared to its total operational time. Understanding and calculating the duty cycle is essential for optimizing device performance, preventing overheating, conserving energy, and improving the overall efficiency of systems. As technology continues to evolve, the significance of duty cycle will undoubtedly remain a critical factor in the design and operation of electronic devices and systems.

在电子和工程领域，术语duty cycle指的是一个系统处于活动状态的时间与其总运行时间的比率。这个概念对于理解设备的功能至关重要，尤其是那些间歇性运行的设备。例如，考虑一个简单的灯泡，它被设计为在某个时间段内亮起，然后熄灭。duty cycle可以用百分比表示，指示设备亮起的时间与整个周期的比较。如果灯泡亮了5秒，然后熄灭5秒，它的duty cycle将是50%。这意味着灯泡一半的时间在发光，而另一半时间则不发光。duty cycle的重要性不仅限于灯泡。在电动机和其他机电系统的世界中，理解duty cycle对于确保设备的使用寿命和效率至关重要。例如，电动机有一个指定的duty cycle额定值，指示它在全功率下运行多久后需要冷却。如果电动机在超过其额定duty cycle的情况下连续运行，它可能会过热并遭受损坏。因此，工程师必须仔细计算duty cycle以优化性能并防止故障。另一个duty cycle发挥重要作用的领域是通信系统，特别是在无线技术中。在传输数据时，设备通常不需要一直处于活动状态。通过管理duty cycle，系统可以节省能源，这对于电池供电的设备尤其重要。例如，一个传感器可能每分钟只传输几秒钟的数据，从而导致较低的duty cycle。这种策略有助于显著延长电池寿命，同时仍保持有效的通信。此外，duty cycle的概念还适用于脉宽调制（PWM）领域。PWM是一种通过改变信号中脉冲的宽度来控制电力传递给电气设备的技术。PWM中的duty cycle决定了平均功率输出；较高的duty cycle意味着更多的功率被传递给负载。这在诸如调光灯、控制电动机速度和调节加热元件的温度等应用中常见。总之，duty cycle是一个基本概念，在电子、工程和电信等多个领域都有应用。它表示一个系统处于活动状态的时间与其总运行时间的比例。理解和计算duty cycle对于优化设备性能、预防过热、节省能源和提高系统的整体效率至关重要。随着技术的不断发展，duty cycle的重要性无疑将继续成为电子设备和系统设计与运行中的关键因素。