Nachrichten
So bauen Sie ein 120-Volt-Wechselstromnetzteil für einen 3-Volt-Gleichstromausgang
Autor： ZYG Leistungsmodul Time： 2023-4-20
If you looking to power a small device that requires 3 volts of DC power, you may be wondering how to build a suitable power supply. One option is to build your own 120 volt AC power supply and use a voltage regulator to step down the voltage to 3 volts. Here how to do it:
Materials:
– Step-down transformer (120V AC to 12V AC)
– Bridge rectifier
– Capacitor
– Voltage regulator (LM317)
– Heat sink
– Resistors
– Potentiometer
– LED
– 3 volt DC load
– Soldering iron and solder
– Multimeter
Step 1: Choose a transformer
The first step is to choose a step-down transformer that converts the 120V AC input to 12V AC output. Make sure the transformer is rated for the amount of power you need (in watts) and that it has the correct output voltage.
Step 2: Rectify the AC voltage
Next, you need to rectify the AC voltage using a bridge rectifier. This will convert the AC voltage to a pulsating DC voltage.
Step 3: Smooth out the DC voltage
To smooth out the pulsating DC voltage, you need to connect a capacitor across the rectified output. This will help to stabilize the voltage and reduce ripple.
Step 4: Regulate the voltage
Now it time to regulate the voltage to a steady 3 volts using an LM317 voltage regulator. This can be achieved by connecting a resistor and a potentiometer to the voltage regulator, which will allow you to adjust the output voltage to 3 volts.
Step 5: Add a heat sink
The LM317 voltage regulator can get quite hot, so it important to add a heat sink to dissipate the heat. You can attach the heat sink to the voltage regulator using thermal paste or adhesive.
Step 6: Test the circuit
Before connecting your load, it important to test the circuit using a multimeter to ensure that the output voltage is stable and accurate. Adjust the potentiometer until the output voltage is exactly 3 volts.
Step 7: Connect the load
Finally, you can connect your 3 volt DC load to the output of the voltage regulator. You may also want to add an LED to indicate when the circuit is powered on.
By following these steps, you can build a 120 volt AC power supply that provides a stable 3 volt DC output for your small devices. Make sure to follow safety guidelines when working with high voltage circuits, and always test your circuit before connecting your load.
Vorherige: wie man ac zu dc stromversorgung verdrahtet
Nächste: How to Differentiate Between AC and DC Power Supply
relevante Information
-
2023-2-14
So wählen Sie den richtigen Hersteller von DC-DC-Wandlern aus
When looking for a , it is important to choose one that will be able to meet your specific needs. There are many different manufacturers out there, so it is important to do your research and find one that has a good reputation and offers a quality product. 1. What to look for when choosing a DC-DC converter manufacturer When looking for a DC-DC converter manufacturer, there are a few key things you need to look for. The first is quality. The converter should be made with high-quality components to ensure it can handle the load and voltage requirements. The second is reliability. The converter should be able to operate reliably for long periods of time without failure. And the...
Einzelheiten anzeigen -
2023-10-20
Comparing Modular and Non-modular Power Supplies: Which is Right for You?
When building a computer or upgrading its components, one crucial consideration is the power supply unit (PSU). The PSU is responsible for converting AC power from the wall outlet into DC power that the computer's components can utilize. It provides a steady and reliable power source to ensure the stability and longevity of your computer system. When it comes to choosing a power supply unit, one important factor to consider is whether to opt for a modular or non-modular design. Each has its own advantages and disadvantages, and understanding them can help you make an informed decision. First, let's define what modular and non-modular power supplies are. A non-modular power supply comes with a fixed set of cables permanently attached...
Einzelheiten anzeigen -
2023-4-12
Creating an AC-DC Converter: A Guide to Converting Alternating Current to Direct Current
If you work with electronics, you may find yourself needing to convert AC (alternating current) to DC (direct current) at some point. This can be done with a simple AC-DC converter circuit. In this guide, we walk you through the process of creating your own converter circuit. First things first, let\ explain the difference between AC and DC. Alternating current is the kind of electricity that comes out of your wall socket. It oscillates back and forth, changing direction 50 or 60 times per second. Direct current, on the other hand, flows in one direction only. Most electronic devices require DC to function. To create an AC-DC converter, you need a few basic components. These include a transformer, a diode...
Einzelheiten anzeigen -
2023-6-10
AC DC Power Supply SM Series: The Best Choice for Your Power Needs
The AC DC Power Supply SM Series is the perfect solution for your power needs. This series of power supplies offers a wide range of options to suit the needs of any application. Whether you need a power supply for industrial, medical, or home use, the SM Series has you covered. The SM Series features high efficiency, low noise, and a compact design. With a wide input voltage range, this power supply can handle any voltage from 90 to 264 VAC. This makes it ideal for use in countries with different voltage standards, as well as for applications where voltage fluctuations are common. In addition to its high efficiency and low noise, the SM Series is also equipped with a...
Einzelheiten anzeigen -
2023-9-22
Unleash the Power of Your PC with a Modular Power Supply
In the ever-evolving world of technology, computers have become an essential part of our lives. Whether it is for work, entertainment, or communication, we rely on our PCs to perform various tasks efficiently and seamlessly. To ensure that our computers function optimally, it is crucial to have a reliable power supply. One such power supply that has gained popularity in recent years is the modular power supply. But what exactly is a modular power supply, and why is it worth considering? A modular power supply is a type of computer power supply that allows users to detach and attach power cables according to their specific needs. Unlike traditional power supplies, which have a fixed set of cables, a modular power...
Einzelheiten anzeigen -
2023-7-17
cheap HP Series manufacture: The Ultimate AC DC Converter
Introduction: In today's world, where electronic devices have become an integral part of our lives, the need for efficient power management solutions is crucial. HP Series, known as the Ultimate AC-DC Converter, has emerged as a game-changer in this field. With its cutting-edge technology and unmatched performance, the HP Series has revolutionized the industry. In this article, we will explore the features, benefits, and applications of this remarkable converter. Features: The HP Series AC-DC Converter boasts an impressive range of features that set it apart from its competitors. Firstly, it offers a wide input voltage range, making it compatible with various power sources globally. Whether you are in a region with 100V or 240V power supply, the HP Series can...
Einzelheiten anzeigen