Is there a difference between wall-plug power adapter and desktop power adapter?

　　 Power adapters have wall-plug power adapters and desktop power adapters, wall-plug power adapters are also known as wall-mounted power adapters. In fact, it can be explained simply, plug-in power adapter is the body can be plugged directly into the plug board to use the power adapter. =Desktop power adapter is the body needs to be placed on the desktop power adapter. The difference between desktop power adapters and wall plug power adapters is that desktop power adapters require an AC cable to be connected to the mains.

Power adapters in security products, communications products, and small home appliances and consumer electronics products are widely used, especially in portable consumer electronics and communications products generally within 10W majority, such as smart phones and tablet PCs generally use 5-10W power adapter power supply, while the computer peripherals, security products, small home appliances are generally used in the following 36W power adapters Most of the products, especially in today's energy tension to promote energy conservation and environmental protection, the most common products in this power band. And notebooks, TVs and other products generally use 120W or less power adapter, and more than 100W more than the built-in power supply. But there are also 200W or less using external power adapters. But the number is relatively small.

　　　 General 36W or less than the use of wall-mounted power adapter, this power adapter is characterized by the need for AC cables, so that the cost is more economical, space-saving, do not need to put the power of the countertop cargo space, directly plugged into the plug board, but also more secure. There are a few 36W or less power adapter using desktop, this is generally because of the use of products from the AC plug board distance or because the power adapter volume is larger, heavier quality, or power adapter above the weight of the heavy hanging. For example, multi-port USB power adapter, in order to avoid the use of USB products plugged into the above more than one and lead to plug unstable situation. And greater than 36W power adapter is not suitable for wall-plug type. Because of its size and weight are larger. So 36W or more generally used desktop.

　　　 And early we have much contact with the linear power supply. For example, in the last century, the use of repeaters. Repeater, its power bulky volume is also larger. May also be encountered from the top of the plug board directly because the plug is not stable and fell down the embarrassing situation. But with the development of technology. As well as the increasingly tense energy, energy efficiency requirements are increasingly high, consumer electronics on the power adapter has a high efficiency, wide input voltage range requirements, as well as copper, iron and labor costs increase, the linear transformer is gradually replaced by the majority of switching power adapters.

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