OEM 19.5v4.62a 90w 4.0mm1.7mm Power Adapter for HP

OEM 19.5v4.62a 90w 4.0mm1.7mm Power Adapter for HP

• The power supply adapter of the laptop is a device that converts the 220V ac power provided by the power supply department into low-voltage dc power supply for the laptop. After the low-voltage dc power output from the power adapter enters the power level brain, it is further processed by the power circuit of the computer motherboard, generating multiple voltages such as 1.8v, 3.3v and 5V for the operation of memory, CPU and other components. In addition, the power provided by the power adapter can also be used to charge the laptop battery through the relevant charging control circuit.
  

• Safety gauge capacitance is used for such occasions, that is, after the capacitor fails, it will not cause electric shock, and will not endanger personal safety. It includes X capacitance and Y capacitance.The discharge of an amperector is not the same as that of a normal capacitor, which retains its charge for a long time after it is disconnected from an external power source and can be charged if it is touched by hand. An amperector does not have this problem. For safety and EMC reasons, it is generally recommended to add safety gauge capacitance to the power supply inlet. At the input end of ac power supply, it is generally necessary to add 3 safety capacitors to suppress EMI conduction interference. They are used in the power filter, to play the role of power filtering, internal to the common mode, differential mode interference to play a filtering role.
  
  
• 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 UL, CE, FCC, KC, PSE, SAA, GS 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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