90W HP Laptop Charger Adapter Connector 19V 4.74A
The transformer is made of silicon steel sheet. The magnetic flux will cause a forceful effect between the silicon steel sheets, which generates a humming sound.
After the transformer is energized, magnetic flux is generated.
But the sound of overheating ground is abnormal, and there are many reasons: 1. The AC voltage is unstable. 2. The chip is damaged. 3. Short circuit between turns. 4. The component is damaged.
What is the power adapter?
The power adapter is also called an external
Power Supply
.
It is a power supply voltage conversion device for small portable electronic equipment and electronic appliances.
There is a nameplate on the power adapter, which shows the power, input and output voltage and current and other indicators.
Its function is to convert the high voltage of 220 volts in the home into a stable low voltage of 5 to 20 volts that these electronic products can work Voltage so that they can work properly.
Daxpoo Tech Co. Ltd is professional engaged in the development, production, sales of all kinds of power supplies and accessories high-tech . The main products are power adapters ,
Switching Power Supply
, waterproof power supply and others. The factory is located in henggang street, longgang district, Shenzhen, china. The company has a complete production management system and professional testing equipment, in line with by the good faith, the strength and the product quality obtains the field the approval. The products of our company are widely used in LED lighting, power communications, instrumentation, monitoring equipment, industrial control automation and so on. “Respect for partners, carry forward the team spirit, dare to innovate and develop, people-oriented” is the business philosophy of all staff, and will follow the footsteps of customers, continuous product innovation and service improvement. We sincerely welcome customers from home and abroad to visit, negotiate, cooperate and develop with us.
Deta
il
s
Color
Black
Input
AC100-240V~1.6A 50-60Hz
Output
19V/4.74A
Model
PA-90W
Power
90W
Place of Original
Shenzhen, China
Productivity
200,000/week
Port
Shenzhen
Images
2024