High Quality 90W 19V4.74A Adapter HP for Elitebook
There are two main types of power adapters, switching power supplies and linear power supplies.
1) The
Switching Power Supply
is a kind of
Power Supply
that uses modern electronic technology to control the time ratio of the switching tube on and off to maintain a stable output voltage. The switching power supply of the power adapter is generally composed of pulse width modulation (PWM) control IC and MOSFET.
Advantages: high working efficiency, small size, can work in a wide voltage range.
Disadvantages: greater interference to the power supply circuit, more difficult to repair when a fault occurs.
2) The linear power supply is to transform the alternating current through the transformer, and the rectifier circuit rectifies and filters to obtain an unstable DC voltage. To achieve a high-precision DC voltage, the power adapter must adjust the output voltage through the voltage feedback circuit.
Advantages: This power supply technology is mature, the circuit is simple, and there is no interference and noise that the switching power supply has.
Disadvantages: The voltage feedback circuit works in a linear state, the power consumption of the adjustment tube is large, and the conversion efficiency is low. Because of the use of an inductive transformer, the equipment is heavy.
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
