Battery Adapter Manufacturer

Why the price of the power adapter is so different

Now the power adapter market is more and more chaotic, fierce competition among peers, uneven quality at the same time, the price difference is also very large, then how can the price difference of power adapters is so big?

This is because the power adapter products because of the circuit program and different materials, and other electronic products are also divided into high and low grades. From the label, its specifications are basically no difference, from the shell material to see. High-grade power supply even if the appearance of the bite flower, his texture and brightness is not the same, brighter, because it is a new fireproof plastic injection molded. The appearance of the low-grade looks no shiny feeling, gray gray, because it is made of recycled plastic, the price of raw materials also differ several times.

　Second, you can look at the metal part of the material and plating. Many high-grade power supply exposed metal is copper nickel-plated, or plating thickness will be thicker, brighter, because high-grade power adapter to do salt spray test through. Therefore, we sometimes find a few dollars outside to buy a cell phone charger does not take long to plug on the rust, while the brand cell phone original charger used for a long time will not have the phenomenon of rust.

　If you know a little bit of electronics, you can dissect the power adapter, low-grade power adapter, charger is generally used in the triode program, it does not have an integrated IC to control, it is just a transformer and triode self-excited oscillation, may be filtering capacitance is not there, or there is a small capacitor of 2.2UF. There is no opto-coupling element and voltage regulator IC 431, and no fuse. There is no safety and security, radiation, and can even pose a threat to human health. The input of the high-grade power adapter has a current fuse, a bridge rectifier consisting of four diodes or bridge stacks, and a large input filter capacitor. And there are EMI anti-electromagnetic interference components to minimize radiation. The power supply is controlled by IC, and the feedback is controlled by the primary PSRIC or the secondary feedback method of photocoupling and voltage regulator 431 to make the power adapter work stably.

Eahunt is the source manufacturer, experienced in developing and designing power supply products, the production capacity is also very sufficient, the quality of the quality is also done very certified, and only do safety regulation power supply, so many domestic and foreign companies like to find Eahunt production of customized power adapters!