19.5V 3.34A Special Tips for DELL Notebook Charger

19.5V 3.34A Special Tips for DELL Notebook Charger

• As the Power Supply in the home is generally about 100v-240v (AC), the power supply in the car and the plane is generally about 12V (DC), but these three commonly used power supply is unstable, can not be directly charged to the laptop, otherwise it will damage the battery and laptop. The laptop needs a stable constant voltage dc power supply.

• So the working principle of universal laptop charger is simple: it is the unstable power supply using the principle of Switching Power Supply through the conversion circuit into a variety of laptop computers need constant voltage dc electricity, with the corresponding connector for a variety of laptop power supply and charging.

• It is worth noting that this conversion circuit must have a protection circuit (overcurrent protection circuit overvoltage protection circuit short circuit protection circuit, etc.) to prevent accidents, to protect the laptop from burning.
  
  
  

• Shenzhen Waweis Technology Co., Ltd. is a high-tech enterprise engaged in r&d, production and sales of notebook adapters. Main: switch power supply, power adapter, charger, LED power supply and other products professional production and processing. The products have passed CE, FCC,  and other certifications. The products produced by the company have perfect protection function, stable performance, safe and reliable. With professional r & d, production and sales experience, the company has accumulated strong technical advantages and rich market resources in the field of power adapters. The company is now able to provide a full range of alternative adapters for the world's major brands of notebook computers.

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