A power supply的意思是电源；电源供应。
相关英文范文如下：
Power Supply for Laptops
Laptops require a power supply to operate. This is a small, portable device that converts household current into the low voltage required by the laptop's circuitry. The power supply usually includes a plug that plugs into a wall socket and a cable that connects the laptop to the plug.
翻译：笔记本电脑需要电源供应才能运行。这是一种小型、便携式的设备，可以将家用电流转换成笔记本电脑电路所需的低电压。电源通常包括一个可以插入墙插头的插头和一条将笔记本电脑连接到插头的电缆。
发音：英 [?p??w s??pju?l]
用法：power supply是电源供应器的简称，是一种电子设备，用于提供电子设备所需的电能。在电子设备中，电源供应器通常负责将交流电转换为直流电，并为电子设备提供所需的电压和电流。
希望以上信息对您有帮助。
标题：A Power Supply
在现代电子设备中，电源是不可或缺的一部分。电源供应器，也被称为电源适配器或充电器，负责将交流电（AC）转换为直流电（DC），以满足各种电子设备的需要。
电源供应器在许多场合中都有应用，包括但不限于笔记本电脑、平板电脑、手机、游戏机、数码相机、无人机等。这些设备都需要特定的电压和电流来正常工作，而电源供应器的作用就是提供这种特定的电压和电流。
电源供应器的设计需要考虑许多因素，包括设备的功率需求、电压范围、电流大小、以及设备的特殊要求。此外，它还需要能够适应各种不同的电源插头和插座类型，以确保在全球范围内都能正常工作。
在某些情况下，电源供应器还需要具备一些额外的功能，如过载保护、短路保护、过电压保护等。这些功能可以确保电源供应器在异常情况下能够安全地保护设备，防止损坏。
总的来说，电源供应器是现代电子设备中不可或缺的一部分，它负责将交流电转换为直流电，满足各种设备的需要。随着技术的不断进步，电源供应器的性能和效率也在不断提高，为我们的日常生活带来了更多的便利。
A Power Supply
Power supplies are essential components in any electronic system. They provide the necessary voltage and current to power the system's components, ensuring that they function properly. Without a reliable power supply, electronic devices would be unable to operate, rendering them useless.
In modern electronic systems, power supplies come in various forms, including linear voltage regulators, switching regulators, and battery packs. Each type of power supply has its unique advantages and disadvantages, and it is important to choose the correct type for the specific application. For example, switching regulators are commonly used in high-power applications because they are efficient and can deliver a constant voltage output, even when the input voltage varies. However, they can be more expensive and require more components than linear voltage regulators.
The design of a power supply also involves various considerations, such as ensuring that the output voltage is sufficient for the system's components, preventing over-voltage and over-current conditions, and ensuring that the power supply is reliable and stable over time. To achieve these goals, it is necessary to carefully select the components used in the power supply circuit, such as capacitors, inductors, and semiconductors.
In addition to the design and selection of power supply components, it is also important to maintain the power supply properly. This includes regular inspection of the power supply's output voltage and current, replacement of any failed components, and ensuring that the power supply is properly grounded to prevent electrical shocks.
In summary, a power supply is a crucial component in any electronic system. It provides the necessary voltage and current to power the system's components, ensuring that they function properly. The design and selection of a power supply involves various considerations, including ensuring that the output voltage is sufficient for the system's components and preventing over-voltage and over-current conditions. Maintaining a power supply properly is also essential to ensure its reliability and stability over time.