This article shares the DIY detailed steps of the all-digital audio power amplifier circuit assembly, the required materials and the desktop speaker implementation functions, etc., using the digital power amplifier board circuit, Switching Power Supply, display panel and line welding, to the final assembly test assembly.
In recent days, DIY has assembled a small all-digital desktop power amplifier. The small and exquisite appearance is put on the desktop for computer songs. The power amplifier features are as follows:
1. Appearance size: aluminum alloy profile shell 74.2mm & TImes; 89.6mm & TImes; 130mm
2. Output power: 2 & TImes; 3W (for pushing left and right 3W small speakers), 2 & TImes; 15W (can be used to push bookshelf speakers). (no radiator required)
3. Power supply mode: USB (2×3W group only), built-in battery 3.6V (2×3W group only), 220V AC power, all three modes can be independently powered, and the built-in battery can be charged when USB and 220V AC power are supplied. .
4. Operation mode: panel button + remote control.
5. Playback function: support U disk, SD card, external audio input, FM radio.
6. Play format: MP3.
7. Display: Two-color LCD display.
8. Voice: Support multi-national language, can display Chinese songs, lyrics.
Power Transformer
The application of the transformers we produce:
1. Building Automation and Control Systems
In modern buildings, power transformers are used to supply power to building automation systems, including lighting control, HVAC (heating, ventilation, and air conditioning) systems, and security systems.
They convert the main power supply to a safe and manageable voltage level, ensuring optimal performance and reliability of these systems.
2. Industrial Control Panels and PLCs (Programmable Logic Controllers)
Industrial control panels and PLCs require precise and stable power supplies to function correctly. power transformers provide clean, filtered power to these devices, minimizing interference and ensuring accurate control.
3. Machine Tool and Automation Equipment
In manufacturing and production facilities, power transformers are used to power machine tools, automation equipment, and robotic systems.
They ensure that these devices operate at the correct voltage level, preventing damage and maximizing productivity.
4. Low-Voltage Electrical Distribution
power transformers are essential components in low-voltage electrical distribution systems, where they convert the main power supply to the required voltage level for distribution to various loads.
This includes supplying power to outlets, lighting fixtures, and other electrical devices in commercial and residential buildings.
5. Audio-Visual and Entertainment Systems
Audio-visual and entertainment systems, such as sound systems, stage lighting, and projection equipment, often require power supplies.
power transformers provide clean, stable power to these systems, ensuring optimal performance and minimizing interference.
6. Medical Equipment and Laboratories
Medical equipment and laboratories require precise and reliable power supplies to ensure accurate measurements and safe operation.
power transformers are used to supply power to various medical devices, laboratory instruments, and testing equipment.
7. Renewable Energy Systems
In renewable energy systems, such as solar and wind power plants, power transformers are used in energy conversion and distribution processes.
They help in stepping down the generated voltage to a level suitable for distribution to the grid or for use in local loads.
8. Backup Power Systems
Backup power systems, including uninterruptible power supplies (UPS) and emergency generators, often incorporate power transformers.
These transformers ensure that the backup power supply is delivered at the correct voltage level, maintaining power continuity during power outages.
In summary, power transformers are vital components in numerous applications where safe, reliable, and efficient power distribution is essential. Their ability to convert and distribute electrical energy at low voltages makes them ideal for use in building automation, industrial control, machine tools, low-voltage electrical distribution, audio-visual systems, medical equipment, renewable energy systems, and backup power solutions.
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Guang Er Zhong(Zhaoqing)Electronics Co., Ltd , https://www.cnadaptor.com