We need the input transformer to step down the incoming AC to our required lower-level i.e. Well, depending on your country, AC coming to your home has a voltage level of 220/120 V. The question is, why we need it in our supply design? The input transformerĪ transformer is a device that can step up or step down voltage levels, following the law of conversation of energy. So, let’s try to understand each section one by one. I think you need to understand which block is doing what first. It has the following four main sub-blocks.įirst, I will explain each block in general and then we will go for designing. The general block diagram for this project is given below. It helps us to design the sections of the circuit individually and then at the end put them together to have a complete circuit, ready for use. The design of any circuit begins with a well made general block diagram.
Step 4: The Selection of smoothing capacitor and calculations. Step 3: The selection of diodes for the bridge. Step by step method to design 5V DC power supply. Just in case you enjoy electronics by doing DIY, then this Variable power supply DIY kit (Click here) will be the right fit for you. Hopefully, you will enjoy this post and will learn something. if a capacitor is being used in the schematic, you should know why it is there, and how its value is calculated. It is a linear technology-based design, will go through you each design step, try to present everything in simple language, will carry out some design mathematics i.e. The power supply which we will design here is very basic. And I can not tell you how much fun it is when you finish your first power supply design, test it, and it works fine. Almost everyone in electronics tries to make it. In this post, we will just not design a power supply but also get to know about design calculations that you can do all by yourself.Ī power supply circuit is a very basic circuit in learning electronics. Looking for some help to design a 5V power supply on your own? Well then, welcome.
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