Новости
Building a 120V AC Power Supply for 3V DC Output
Автор：Модуль питания ZYG Time： 2023-4-19
Introduction:
In this tutorial, we will learn how to build a 120V AC power supply that outputs 3V DC. This is a simple project that can be completed by anyone with basic knowledge of electronics. The power supply can be used to power small electronic projects, such as LED lights or small motors. Let\’s get started!
Materials Required:
– 120V AC power source
– Transformer (120V AC to 3V AC)
– Bridge rectifier (1N4007)
– Capacitor (1000uF, 16V)
– Voltage regulator (LM7805)
– Heat sink
– Resistor (220 ohm)
– LED
– Breadboard
– Jumper wires
Instructions:
Step 1: Connect the Transformer
Connect the primary side of the transformer to the 120V AC power source. The secondary side of the transformer should be connected to the bridge rectifier.
Step 2: Connect the Bridge Rectifier
Connect the positive and negative terminals of the bridge rectifier to the output terminals of the transformer. The bridge rectifier will convert the 3V AC output of the transformer to a pulsating DC output.
Step 3: Connect the Capacitor
Connect the positive terminal of the capacitor to the positive output of the bridge rectifier. The negative terminal of the capacitor should be connected to the ground.
Step 4: Connect the Voltage Regulator
Connect the output of the capacitor to the input of the voltage regulator. The voltage regulator is used to regulate the voltage and provide a stable 3V DC output. The voltage regulator should be mounted on a heat sink to dissipate heat.
Step 5: Connect the Resistor and LED
Connect the resistor to the output of the voltage regulator. The LED should be connected in series with the resistor. The resistor is used to limit the current flowing through the LED.
Step 6: Test the Power Supply
Connect the power supply to a load, such as an LED or small motor, to test the output voltage. The output voltage should be 3V DC.
Conclusion:
In this tutorial, we have learned how to build a simple 120V AC power supply that outputs 3V DC. This power supply can be used to power small electronic projects and is a great starting point for those new to electronics. With some basic components, this power supply can be built in just a few minutes.
Предыдущий: Building a 120 Volt AC Power Supply for 3 Volts DC
Следующий: Как отличить источник переменного и постоянного тока?
релевантная информация
-
2023-7-11
Custom Type Power Series: Unlocking Your English Proficiency
English is one of the most widely spoken languages in the world. Whether you are a student, a professional, or a language enthusiast, having a high level of English proficiency can open up countless opportunities for personal and professional growth. In this article, we will explore the benefits of the Custom Type Power Series, a unique approach to unlocking your English proficiency. The Custom Type Power Series is a comprehensive and personalized program designed to cater to the specific needs and goals of English learners. Unlike traditional language courses that follow a rigid curriculum, this series focuses on individual strengths and weaknesses, allowing learners to progress at their own pace. One of the key features of the Custom Type Power...
Посмотреть детали -
2023-12-13
Versatile Adjustable Power Supply Module for Diverse Electrical Applications
The demand for electrical power supplies that can cater to diverse applications is increasing rapidly. In response to this, a versatile adjustable power supply module has been developed to meet the various needs of the electrical industry. This article aims to explore the features and benefits of this module, highlighting its importance in different electrical applications. Features: The versatile adjustable power supply module comes with several key features that make it suitable for a wide range of applications. Firstly, it offers adjustable voltage and current output, allowing users to customize the power supply according to their specific requirements. This flexibility is particularly useful in applications that require different voltage levels or varying current intensities. Moreover, the module is designed to...
Посмотреть детали -
2023-10-13
Fully Modular Power Supply: The Key to Efficient Cable Management
Efficiency is the key to success. This holds true for many aspects of our lives, including cable management in our electronic devices. One innovative solution to the tangled mess of cables is the fully modular power supply. A power supply is an essential component of any electronic device, providing the necessary electrical power to make it function. Traditionally, power supplies come with a fixed set of cables that connect to various components within the device. However, this can lead to a multitude of cables snaking through the system, causing impedance in airflow and hindering overall performance. The concept of a fully modular power supply aims to tackle this issue head-on. Unlike its traditional counterparts, a fully modular power supply allows...
Посмотреть детали -
2023-11-2
The need for efficient voltage regulation is more critical than ever. From smartphones to electric vehicles, countless devices depend on a stable power supply to function optimally. That's where DC to DC step-down adjustable power supply modules come in. These modules offer a versatile and reliable solution for managing voltage levels, ensuring that devices operate smoothly and efficiently. One of the key advantages of DC to DC step-down adjustable power supply modules is their ability to convert a higher input voltage to a lower output voltage. This feature makes them particularly useful in situations where the input power source does not match the required voltage level. By stepping down the voltage, these modules enable devices to function with precision and...
Посмотреть детали -
2023-12-31
A high voltage power supply module is a crucial component in various electronic systems, providing the necessary voltage levels to power devices that require high voltage operation. This module plays a significant role in fields such as medical equipment, scientific research, telecommunications, and industrial applications. In this article, we will explore the functions, features, and applications of high voltage power supply modules. Firstly, let us understand the basic functions of a high voltage power supply module. Its primary purpose is to convert low voltage input into high voltage output, which is typically in the range of several hundred to tens of thousands of volts. This module must be capable of delivering a stable and reliable output to ensure the proper...
Посмотреть детали -
2023-11-18
Best Modular Power Supply for Gaming PC
When it comes to building a gaming PC, one of the most crucial components that should not be overlooked is the power supply unit (PSU). A good PSU ensures that your system receives a stable and reliable power source, preventing any potential damage to the components and allowing for smooth and uninterrupted gameplay. Among the different types of PSUs available in the market, modular PSUs have gained popularity among gamers due to their flexibility and ease of use. In this article, we will explore some of the best modular power supplies that are specifically designed for gaming PCs, taking into consideration factors such as performance, efficiency, and affordability. One highly recommended modular power supply for gaming PCs is the Corsair...
Посмотреть детали