深入解析：电脑电源的工作原理与构造 一、工作原理 电脑电源，也被称为电源供应器（Power Supply Unit，简称PSU），是电脑硬件中不可或缺的组成部分。它的主要作用是将交流电（AC）转换为直流电（DC），为电脑各部件提供稳定、可靠的电力供应。以下是电脑电源的工作原理详细解析： 1. 交流电输入：电源从墙壁插座等电源接口接收交流电。 2. 整流：通过整流器将交流电转换为脉动直流电（DC）。 3. 滤波：通过滤波器去除脉动直流电中的杂波，得到较为纯净的直流电。 4. 电压转换：电源内部的开关电源电路将电压调整到适合电脑各部件工作的水平。这一过程通常涉及高频开关、变压器等设备。 5. 供电：经过转换的直流电被分配到电脑的各个部件，如CPU、显卡、内存、硬盘等。

【电源】全新额定450w 500w 550w 600w 650w 700wPC电源静音显卡电脑电源售价：118.00元 领券价：118元 邮费：0.00

二、构造 电脑电源的构造主要包括以下几个部分： 1. 输入端：负责接收交流电的接口，通常包括电源线、IEC插座等。 2. 整流器：将交流电转换为脉动直流电。 3. 滤波器：通常由电容、电感等元件组成，用于去除脉动直流电中的杂波。 4. 开关电源电路：这是电源的核心部分，通过高频开关和变压器将电压调整到适当的水平。这部分通常包括PWM控制器、功率开关管、反馈电路等。 5. 输出端：负责将调整后的直流电分配到电脑的各个部件。这一部分通常包括多个接口，如ATX接口、PCI-E接口等。 6. 保护电路：为了保护电脑免受过电压、过电流等损害，电源内部通常还设有各种保护电路，如过压保护、过流保护等。 7. 风扇：为了保持电源内部的温度在合理范围内，大多数电脑电源都配有风扇。 三、英文翻译 In-depth Analysis: The Working Principles and Structure of Computer Power Supply The computer power supply, also known as the Power Supply Unit (PSU), is an indispensable component of computer hardware. Its main function is to convert alternating current (AC) into direct current (DC) and provide a stable and reliable power supply for various computer components. Here is a detailed analysis of the working principles and structure of the computer power supply: Working Principles: 1. AC Input: The power supply receives alternating current from power outlets such as wall sockets. 2. Rectification: The alternating current is converted into pulsating direct current (DC) through a rectifier. 3. Filtering: A filter is used to remove noise from the pulsating DC and obtain a relatively pure DC.

4. Voltage Conversion: The switch power circuit inside the power supply adjusts the voltage to a level suitable for the operation of various computer components. This process usually involves high-frequency switching, transformers, and other equipment.

【电源】全新ATX额定3000W多路双风扇电脑电源拥有PCI-E原生5.0 显卡接口售价：488.00元 领券价：488元 邮费：0.00

5. Power Supply: The converted DC is distributed to various parts of the computer, such as the CPU, graphics card, memory, hard disk, etc. Structure: 1. Input End: It is responsible for receiving the alternating current through power lines and IEC sockets. 2. Rectifier: Converts alternating current into pulsating direct current. 3. Filter: Usually composed of capacitors, inductors, and other components, used to remove noise from the pulsating DC. 4. Switching Power Circuit: This is the core part of the power supply, which adjusts the voltage to an appropriate level through high-frequency switching and transformers. This part usually includes a PWM controller, power switch tube, feedback circuit, etc. 5. Output End: It is responsible for distributing the adjusted DC to various parts of the computer, including ATX and PCI-E interfaces. 6. Protection Circuitry: To protect the computer from overvoltage, overcurrent, and other damages, various protection circuits are usually equipped inside the power supply, such as overvoltage protection and overcurrent protection. 7. Fan: To keep the temperature inside the power supply within a reasonable range, most computer power supplies are equipped with fans.