How to Choose an laptop AC Adapter
Laptop Ac Adapter, Laptop Charger, Laptop Adapter
With an increasing number of new electronic gadgets - phones, music players, PDAs, handheld games and other toys - comes an increasing number of AC Adapters needed to charge and power those gadgets. Often the adapteris lost or broken, and choosing a replacement can be confusing because of the variety of selections available.
1.Determine the desired output specifications of the AC adapter. This can usually be found on the old adapter, the electronic device, or the instruction manual of the electronic device. There are two components to this: the voltage, measured in volts, and the current, usually measured in milliamps (ma). When selecting an adapter, you will want to match these as closely as possible.
2.Determine whether the adapter should be regulated or unregulated. Simply put, an unregulated adapter does not always produce the rated voltage while a regulated adapter does. Because of this, regulated AC adapters are also generally more expensive than unregulated ones.
3.Determine the polarity of the adapter, which will either be positive or negative. The following image shows how polarity is usually represented.
4.Determine the size of the adapter plug. Plug sizes are normally measured in millimeters.
5.Choose an adapter that meets all of the above four requirements: proper output voltage and current, regulated voltage if required, proper plug size, and proper polarity.
Laptop Ac Adapter
, Laptop Adapter
, Laptop Charger