Laptop Adapter

The key power supply device for laptops, its core function is to convert mains electricity (AC, 100-240V) into the stable low-voltage direct current (DC) required by the laptop, providing continuous power support for the device while simultaneously charging the built-in battery. Its design must be strictly matched with the laptop's voltage, current, and interface specifications to ensure power supply safety and device compatibility. The product adopts a high-efficiency transformer design, typically achieving a conversion efficiency of over 85%, reducing energy loss. Through a negative feedback circuit, it enables precise regulation of the output voltage, maintaining stable power supply even with fluctuations in mains electricity.