nouvelles
Construire une alimentation 120 volts AC pour 3 volts DC
Auteur： Module d'alimentation ZYG Time： 2023-4-21
In this guide, we will be building a 120-volt AC power supply that can provide 3 volts DC output. This power supply will be useful for a variety of electronic projects that require a low voltage DC power source.
To begin, we will need the following materials:
– Transformer: A transformer is a device that converts high voltage AC power to low voltage AC power. In this case, we will need a transformer that can convert 120V AC to 6V AC.
– Bridge rectifier: A bridge rectifier is a circuit that converts AC power to DC power. We will be using a bridge rectifier that can handle at least 1 ampere of current.
– Capacitor: A capacitor is an electronic component that stores electrical energy. We will need a 1000uF capacitor rated for at least 16V.
– Voltage regulator: A voltage regulator is a circuit that maintains a constant output voltage. We will be using a LM317 voltage regulator that can provide a variable output voltage between 1.2V and 37V.
– Heat sink: A heat sink is a device that dissipates heat from electronic components. We will need a heat sink for the LM317 voltage regulator.
– Resistor: We will need a 240 ohm resistor to set the output voltage of the LM317 voltage regulator.
– Miscellaneous: We will also need a breadboard, wires, and a power cord.
Once we have all the required materials, we can start building our power supply. Here are the steps:
1. First, we will connect the transformer to the bridge rectifier. Connect the 6V AC output from the transformer to the AC input of the bridge rectifier. The DC output of the bridge rectifier should be connected to the positive terminal of the capacitor.
2. Next, we will connect the voltage regulator to the capacitor. Connect the positive terminal of the capacitor to the input of the LM317 voltage regulator. The output of the LM317 voltage regulator should be connected to the positive rail of the breadboard.
3. Now, we will set the output voltage of the LM317 voltage regulator. To do this, we will connect a 240 ohm resistor between the output and the adjust pins of the LM317 voltage regulator. The adjust pin should also be connected to the negative rail of the breadboard.
4. Finally, we will add a heat sink to the LM317 voltage regulator to dissipate heat. Mount the heat sink on the LM317 voltage regulator and connect it to the ground rail of the breadboard.
5. Connect the power cord to the transformer and plug it into the wall outlet. The output voltage of the power supply should be set to 3V DC.
Congratulations! You have successfully built a 120V AC power supply that can provide 3V DC output. This power supply can be used in a variety of electronic projects that require a low voltage DC power source. Remember to take caution when working with high voltage AC power, and to always follow proper safety procedures.
Précédent: Alimentation AC-DC : une source d'énergie électrique fiable
Prochain: AC-DC Power Supply: Providing Efficient and Reliable Energy Conversion
les informations pertinentes
-
2023-10-13
Top Affordable Modular Power Supplies for Budget-Conscious Buyers
When it comes to building a computer, one of the most important components is the power supply. A good power supply ensures that all the other parts receive a steady and reliable flow of electricity, preventing any potential damage. However, finding a high-quality power supply that doesn't break the bank can be a challenge. That's why we've compiled a list of the top affordable modular power supplies for budget-conscious buyers. 1. Corsair CX650M The Corsair CX650M is an excellent option for those on a budget. With a maximum power output of 650 watts, it can easily handle the needs of most mid-range gaming PCs. The modular design allows for easy cable management, ensuring a clean and organized build. Additionally, it...
Voir les détails -
2023-7-23
Efficient AC to DC Converter for LED Lights: 12V Solution
Introduction LED lights have gained popularity in recent years due to their energy efficiency, long lifespan, and versatility in design. However, one of the challenges in using LED lights is converting the alternating current (AC) from the power grid into direct current (DC) required by the LED lights. In this article, we will explore an efficient AC to DC converter solution for LED lights, specifically focusing on a 12V system. Background LED lights operate on DC power, which is different from the AC power supply available in most households. Therefore, an AC to DC converter is needed to ensure the proper functioning of LED lights. The converter's primary function is to convert the AC voltage into a stable and regulated...
Voir les détails -
2023-6-4
DC Power Conversion: Understanding the Basics and Best Practices
Power conversion is an essential process in modern electronics, enabling devices to operate using different voltage and current levels. In this article, we will take a closer look at DC power conversion, its basics, and best practices. DC power conversion refers to the process of converting DC voltage levels from one level to another. This process is necessary because different electronic devices operate using different voltage levels. For example, a smartphone may operate using a voltage of 3.7 volts, while a laptop may require a voltage of 19 volts. To ensure that electronic devices can operate efficiently and safely, DC power conversion is used to convert the voltage levels to suit the specific needs of each device. The process of...
Voir les détails -
2023-5-27
Unleashing the Power of LED: Exploring the LED Power Series
LEDs, or light-emitting diodes, have revolutionized the lighting industry in recent years. They are efficient, durable, and versatile, making them ideal for a wide range of applications, from household lighting to large-scale industrial projects. However, not all LEDs are created equal. Some are more powerful than others, and one series that stands out in particular is the LED Power Series. The LED Power Series is a line of high-intensity LEDs designed for demanding applications that require bright, reliable lighting. These LEDs are available in a range of sizes and colors, and they can be used in a variety of settings, from automotive lighting to street lighting and beyond. The key to their success is their advanced design and construction, which...
Voir les détails -
2023-6-9
Car AC-DC Converter: Power Your Devices Anywhere You Go!
As technology becomes an increasingly integral part of our lives, the need for power sources has never been more pressing. Whether it's charging a smartphone, powering a laptop, or running a mini fridge, we rely on electricity to keep our devices going. While we may have access to power outlets at home or in the office, staying connected while on the go can be a challenge. That's why a car AC-DC converter is becoming an essential accessory for anyone who values their mobile devices. So, what is a car AC-DC converter? Simply put, it's a device that allows you to plug your electronic devices into a car's power outlet, also known as a cigarette lighter socket. This outlet typically provides...
Voir les détails -
2023-5-22
Efficient 120V AC to 12V DC Converter for Reliable Power Conversion
Introduction The conversion of power from alternating current (AC) to direct current (DC) is a critical process in many electrical systems. DC devices require a stable and reliable source of power, which is often provided by a converter that transforms AC power into DC power. In this article, we will discuss the importance of a high-quality AC to DC converter and introduce an efficient 120V AC to 12V DC converter that can be used in a wide range of applications. Importance of High-Quality AC to DC Conversion The quality of the AC to DC conversion is critical for the performance and reliability of DC devices. A poorly designed or inefficient converter can cause issues such as voltage fluctuation, noise, and...
Voir les détails