How to build a DC power supply?

February 14, 2025common problems 3350

您可以使用交流—直流转换器或整流器将交流电转换为直流电，然后使用稳压器来维持稳定的输出电压，如此构成直流电源。构建直流电源的基本步骤如下：

找到一个变压器：您可以使用这个变压器将交流电源的电压降低到更易于管理的水平。
构建整流器电路：您可以使用二极管桥（全波整流器）来构建整流器电路，二极管桥由四个二极管以特定配置方式组成。整流器电路将把交流电压转换为脉动直流电压。
构建滤波器电路：您可以使用滤波器电路让脉动直流电压变平滑，产生稳定的直流电压。电容滤波器就是一种最常见的滤波器电路，它采用一个或多个电容器来消除电压脉动。
构建稳压器电路：您可以使用线性稳压器或开关稳压器创建这种电路。无论输入或负载如何变化，稳压器始终都能保持稳定的输出电压。
最后将所有元器件组装到适当的封装或外壳中，制成完整的电源。

请注意，构建电源需要熟悉电子和电气安全知识。最好是咨询专业人士或是使用预制套件，以免发生危险。

Previous. Is it possible to generate DC power using an AC power supply?NEXT STORY. How do I connect two DC power supplies in series?

What is the difference between an oscilloscope and a spectrum analyzer/signal analyzer?
February 14, 2025 89
We usually use time as a frame of reference, focusing on when certain specific events will occur. This includes electrical events. Oscilloscopes allow you to view the instantaneous value of a particular electrical event (or the voltage value of some other event converted by an appropriate transducer) over time. In other words, we can use an oscilloscope to view the waveform of a signal in the time domain. Fourier theory...
View Full Version
What are the different types of oscilloscopes?
February 14, 2025 554
所有现代示波器都是数字存储示波器（DSO），它们使用数字信号处理来捕获和显示模拟信号。如果示波器在数字域中同时观察这些信号能力,它就是混合信号示波器（MSO）。如果示波器内置频谱分析仪功能，它就是混合域示波器（MDO），尽管这种术语不太常见。 ,
View Full Version
What is the frequency of electricity?
February 14, 2025 426
What does the frequency of electricity mean? Here are the basics of frequency, regionality, and measurement Since electricity and voltage are invisible things, many people will think they are elusive. But in fact, they are only invisible, and it is not difficult to understand them. Below, we will introduce the frequency basis of electricity and voltage in an easy-to-understand way, regional differences in frequency, and how...
View Full Version
How do I use an oscilloscope?
February 14, 2025 340
There are many brands and types of oscilloscopes on the market and they may look different, but most have the same basic steps. Here is a step-by-step guide on how to use an oscilloscope: ,
View Full Version

Hello!sign in

How to build a DC power supply?

Recommended

What is the difference between an oscilloscope and a spectrum analyzer/signal analyzer?

What are the different types of oscilloscopes?

What is the frequency of electricity?

How do I use an oscilloscope?

Learn about us

client service

Product Center

Follow the public number

Contact Us