How to choose the power adapter?

When we buy goods, we will consider what brand, quality, price and so on. In fact, the purchase of latop AC adapter is the same, we will carefully consider before buying what brand, effect, noise, stability, convenience, etc. However, after use, all the disadvantages will be ignored, can be used is good, Unless it is really can not be used, will consider to replace. Next, I will tell you what kind of power adapter is a good adapter?

What we need to consider?

Stability

The stability of power adapters are mostly the same, all based on the over-current protection, EMI radiation, voltage deviation, ripple suppression, cross load, timing, dynamic test and so on the performance of the project, to come to whether the power AC adapter can be stable operated for a long time.

Depending on the environment, the performance of the data is also different, the stability will not be the same. Japan, the United States, Canada, etc., mains voltage is 110V, the stability of the power adapter in these two cases are different, but the power adapter has a 20% voltage fluctuation range, to use abroad, then do not worry too much.

Convenience

Convenience is one of the main factors for everyone to consider. Electronic products itself is for convenience reasons, slowly toward the small and sophisticated direction, the power adapter is the same naturally, I believe no one will be willing to carry large things. Convenience is based on the laptop AC adapter measurements, size, weight to consider, some light power adapter, its price will naturally be slightly higher.

Energy-saving

Now, we advocate a green trip to save energy, I believe we can understand. Power adapter is mainly used for conversion efficiency, the initial power conversion efficiency of only 60%, with the progress of technology and development, generally can reach more than 70%.
Another is the no-load loss, referring to the case of electronic products in standby, power AC adapter power loss. According to the different materials inside the power adapter, the loss rate is not the same. So when we do not use electronic products, it is best unplug the power AC adapter to save energy.

Durability

Durability can be used as a measure for all items except food. Due to the power adapter environment, its durability is relatively important. In addition to the normal use of connecting the electricity and electronic equipment, we often take the laptop  AC adapter everywhere, some bumps are inevitable, and the wire will be frequent folding, which determines its aging faster, the service life Will decrease.

Compatibility

As the power adapter does not have a unified interface standard, so the products on the market are different in the interface, when you select the laptop power adapter, you need to carefully compare, to avoid buying the wrong.
Another reason is that power adapters usually have voltage bumps. Power adapters with similar voltage levels are compatible as long as they do not exceed the maximum range of electronic products.

What do you need to pay attention to?

Power adapters, as electronic products. It will corrode or oxidize their internal electronic components to varying degrees if they are accidentally filled with water or exposed to damp conditions for extended periods of time.
laptop power AC adapter is actually a fragile electronic components, the internal components can not be beat. In particular, to prevent falling from a height during use, do not throw, beat or vibrate the charger. Rough handling of the charger will destroy the internal circuit board and cause a malfunction.
Do not place the charger where the temperature is too high. High temperatures will shorten the life of the electronics, destroy the charger and cause some plastic parts to deform or melt. Do not store the charger in an overcooled place. When the charger is operating in a cold environment, the internal temperature will increase and moisture will form inside the charger, damaging the circuit board.
You need to periodically clean the power AC adapter charging interface. When cleaning, use a damp cloth, or best to prepare a good quality antistatic cloth. Remember never to use dry cloth.
Power adapter in the cleaning do not use strong chemicals, cleaning agents or strong detergent. If you remove the appearance of the charger stains, you can use cotton with a small amount of anhydrous alcohol scrub.

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