বাতৰি
১২০ভি এচিৰ পৰা ৩ভি ডিচি পাৱাৰ চাপ্লাই নিৰ্মাণ কৰা
Author： ZYG Power Module Time： 2023-4-18
Introduction:
A power supply is an essential component in any electrical or electronic system. It provides the necessary power for the system to operate. In this article, we will discuss how to build a 120V AC to 3V DC power supply. The power supply can be used for a variety of applications such as powering low voltage circuits, charging batteries, and powering small electronic devices.
Design:
The power supply is designed to convert the 120V AC voltage from the mains into a 3V DC voltage. The power supply consists of a transformer, a bridge rectifier, and a voltage regulator.
Transformer:
The transformer is used to step down the 120V AC voltage to a lower voltage suitable for the power supply. The transformer used in this design has a primary winding of 120V AC and a secondary winding of 6V AC. The secondary winding is center-tapped, which means that it has a common ground reference.
Bridge Rectifier:
The bridge rectifier is used to convert the AC voltage from the transformer into a DC voltage. The bridge rectifier is made up of four diodes that are arranged in a bridge configuration. The output of the bridge rectifier is a pulsating DC voltage that has a voltage of approximately 9V DC.
Voltage Regulator:
The voltage regulator is used to regulate the output voltage of the power supply. In this design, a LM317 voltage regulator is used. The LM317 voltage regulator is a three-terminal adjustable voltage regulator that can provide an output voltage between 1.25V and 37V. The LM317 voltage regulator is connected in a voltage divider configuration to provide a 3V DC output voltage.
Circuit Diagram:
The following circuit diagram shows the 120V AC to 3V DC power supply:
[Insert Circuit Diagram Here]
Construction:
The 120V AC to 3V DC power supply can be easily constructed on a breadboard or a PCB. The components required for the power supply are:
1. Transformer: 120V AC to 6V AC center-tapped transformer
2. Bridge Rectifier: 4x 1N4007 diodes
3. Voltage Regulator: LM317
4. Capacitors: 1x 2200uF electrolytic capacitor, 1x 0.1uF ceramic capacitor
5. Resistors: 2x 220 ohm resistors, 1x 240 ohm resistor
6. LED: 1x LED (optional)
The following steps can be followed to construct the power supply:
1. Mount the components on a breadboard or a PCB as shown in the circuit diagram.
2. Connect the 120V AC input to the primary winding of the transformer.
3. Connect the center-tap of the secondary winding of the transformer to the ground.
4. Connect the output of the bridge rectifier to the input of the LM317 voltage regulator.
5. Connect the output of the LM317 voltage regulator to the output terminals.
6. Connect the LED (optional) to the output terminals through a current-limiting resistor.
Testing:
The power supply can be tested by measuring the output voltage using a multimeter. The output voltage should be approximately 3V DC. The LED (optional) can also be connected to the output terminals to test the power supply.
Conclusion:
In this article, we have discussed how to build a 120V AC to 3V DC power supply. The power supply is designed using a transformer, a bridge rectifier, and a voltage regulator. The power supply can be used for a variety of applications such as powering low voltage circuits, charging batteries, and powering small electronic devices. The power supply is easy to construct and can be tested using a multimeter.
পূৰ্ৱবৰ্তী: AC-DC Converter: Converting Alternating Current to Direct Current
এটাৰ পাচৰ: how to wire ac to dc power supply
প্ৰাসংগিক তথ্য
-
2023-11-20
Efficient and Modular 1000W Power Supply for Your System
When it comes to powering your computer system, you need a reliable and efficient power supply unit (PSU) that can handle the demands of your components. Whether you're a gamer, a content creator, or a professional working with resource-intensive applications, the need for a high-quality PSU cannot be underestimated. That\'s why we are proud to introduce our efficient and modular 1000W power supply, designed to meet the power requirements of even the most demanding systems. Efficiency is a key factor to consider when choosing a PSU. Our 1000W power supply boasts an impressive 80 Plus Gold certification, ensuring that it operates at a high level of efficiency. This means that it maximizes power delivery while minimizing energy waste, resulting in...
সবিশেষ চাওক -
2023-7-13
Introducing the SP Series AC DC Converter: Your Ultimate Power Solution
In today's highly digitalized world, having a reliable and efficient power solution is essential. Whether it is for consumer electronics, industrial applications, or renewable energy systems, a high-quality AC DC converter plays a crucial role in providing a stable power supply. This is where the SP Series AC DC Converter comes into the picture – a cutting-edge power solution that guarantees optimal performance and versatility. The SP Series AC DC Converter is designed to convert alternating current (AC) into direct current (DC), making it compatible with a wide range of electronic devices and systems. With its advanced technology and robust construction, this converter offers an unparalleled level of efficiency, reliability, and safety. One of the standout features of the SP...
সবিশেষ চাওক -
2023-10-20
Modular vs Non-Modular Power Supply: Which Is Right for You?
When it comes to building or upgrading a computer, one of the most important components to consider is the power supply unit (PSU). The PSU is responsible for converting AC power from the wall outlet to DC power that the computer can use. It provides the necessary power to all the components, including the CPU, GPU, and storage devices. However, when it comes to choosing a PSU, there is a crucial decision to make: modular or non-modular. A modular power supply is one where the cables can be detached from the unit, allowing for a customizable cable management system. This means that you can connect only the cables you need for your specific build, reducing cable clutter and improving airflow...
সবিশেষ চাওক -
2023-4-16
Generating AC-DC Power Conversion for Efficient Energy Transfer
The conversion of electrical power between AC and DC forms is an essential part of modern power systems. AC power is the most commonly used form of electrical power, but many electronic devices require DC power. Thus, AC-DC power conversion is necessary to supply power to all kinds of devices. In order to generate DC power from AC, a rectifier is required. A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. There are two main types of rectifiers: half-wave and full-wave rectifiers. Half-wave rectifiers are simpler and cheaper, but they are less efficient than full-wave rectifiers. The most common type of full-wave rectifier is...
সবিশেষ চাওক -
2023-4-25
How to Differentiate Between AC and DC Power Supplies
When it comes to powering electrical devices, there are two main types of power supplies: AC and DC. AC stands for alternating current, while DC stands for direct current. Both types of power supply have their specific uses and applications. It is important to differentiate between the two in order to choose the right type of power supply for your device. The main difference between AC and DC power supplies is the way that the electrical current flows. In an AC power supply, the current alternates back and forth in a sinusoidal pattern. This means that the current changes direction periodically. In a DC power supply, the current flows in only one direction, from the positive to the negative terminal....
সবিশেষ চাওক -
2024-4-27
Modular PC Power Supply: Stable and Efficient Power Protection
In the pursuit of ultimate computer performance, stable and efficient power supply has become a key factor to ensure the stable operation of computers. Modular PC Power Supply, with its modular design and excellent power performance, provides strong power protection for computers. It not only meets the needs of high-end gaming PCs, graphics and design workstations and other high-duty scenarios, but also plays an important role in critical areas such as servers and data centres. In this article, we will discuss the stable and efficient characteristics of Modular PC Power Supply, as well as its advantages and value in different application scenarios. Stable Power Backup for High-End Gaming PCs High-end gaming computers have harsh demands on power, especially in...
সবিশেষ চাওক