Attractive Design
Laptop Charger For Sony
The reason that switch power transformer heats up: switch power transformer is the power transformer that joined switch tube, in the circuit besides the voltage transform function of common transformer, still hold concurrently insulative isolation and power transmission function to be used commonly in the occasion that involves high frequency circuit such as switch
Power Supply
. The main heating components in
Switching Power Supply
are semiconductor switch tube, power diode, high frequency transformer, filter inductance, etc. Different devices have different ways of controlling heat. The power tube is one of the devices with large calorific value in the high-frequency switching power supply.
Reducing its calorific value can not only improve the reliability of the power tube, but also improve the reliability of the switching power supply and increase the average failure-free time. The calorific value of the switch tube is caused by loss. The loss of the switch tube is composed of switching process loss and on – state loss. Switching process loss is caused by gate charge and switching time. Devices with faster switching speed and shorter recovery time can be selected to reduce switching process loss. But it is more important to design better control mode and buffer technology to reduce the loss, such as using soft switch technology, can greatly reduce this loss. Reduce the power diode heat, ac rectifier and buffer diode, generally there is no better control technology to reduce the loss, you can choose high-quality diode to reduce the loss. For the secondary side rectification of the transformer, the synchronous rectification technology with higher efficiency can be chosen to reduce the loss. For the loss caused by high-frequency magnetic materials, we should try to avoid the skin effect, the effect of skin effect, can be used to use a multi-strand thin enameled wire and winding method to solve
Daxpoo Tech 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.
Product details
Model No.
PA-90W
Usage
Laptop
Color
Black
Connection
Desktop
Input
100-240V 50/60Hz 1.5A
Output
65w
Weight
204g
Certificates
CE,FCC,ROHS
Imag
2024