switching power supply

  1. DIY Universal AC-DC Power Supply Circuit | 12V 3A (36W)

    In this video, I showcase my universal input (85V-260V AC) to 12V-3A DC Flyback power supply, delivering 36W of stable output power. The PWM controller runs at 65kHz switching frequency, optimized for efficiency and reliability. I used a 650V Mosfet to drive the transformer.
  2. 85V-260VAC to 5VDC/12VDC 24W Flyback Switching Power Supply

    This project presents a 24W Flyback power supply utilizing the DK125 chip, designed for dual-output operation with 12V at 1A and 5V at 2.2A. The circuit operates at a switching frequency of 65kHz, using an EE-25 ferrite transformer as the core magnetic component. Semi-regulation of both outputs...
  3. DIY AC-to-DC 12V Flyback SMPS For Beginners

    The isolated AC-to-DC flyback converter is the most commonly used power supply type for home and industrial devices. Fear of the main voltage and complexity of calculations cause electronic beginners and enthusiasts to procrastinate DIY such circuits. This project introduces an AC-to-DC flyback...
  4. 85V-260VAC to 5VDC-2.5A Flyback Switching Power Supply

    The key part of any electronic device is the power supply. Any instability or malfunction of the power supply part causes the device to stop working or demonstrate weird behavior. In this article/video, I introduced an AC-to-DC flyback Switching power supply that converts 85V-260VAC to...
  5. 220VAC to 8VDC 24W Flyback Switching Power Supply

    The most important part of any electronic device is the power supply section. Any instability or malfunction in this part causes the device to stop its operation or show weird behavior. In this article/video, I introduced an AC to DC Flyback Switching power supply that converts 220V-AC to 8V-DC...
  6. 5A-35V Adjustable Switching Power Supply

    A DC-to-DC converter is one of the most commonly used circuits in electronics, especially in power supply applications. There are three major types of DC-to-DC converters (non-isolated): Buck, Boost, and Buck-Boost. Sometimes a buck converter is also called a step-down converter and a boost...
  7. 220V-AC to 12V-DC 18W Switching Power Supply

    Flyback is the most common circuit topology to build galvanically isolated AC to DC or DC to DC converters. Flyback circuit is cheap and relatively easy to manufacture, therefore nowadays the majority of home or industrial appliances are powered using AC to DC Flyback converters. In general, a...
  8. 0-30V, 0-7A Adjustable Switching Power Supply [CC-CV plus LED]

    DC to DC buck converters is a famous topology in the electronic and a widely used circuit in electronic devices. A buck converter steps down the input voltage while it increases the output current. In this article/video, I have discussed a DC to DC buck converter that can be used effectively as...
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