Theoretically . Original power certainly better, but the actual use may not feel the difference. Usually we have a safety device input voltage range , such as a 2.5 mobile hard disk , it is plus or minus 5% requirement 5V , too high or too low, the protection circuit will stop the device work. If the protection circuit is activated, it means that before this, your machine has been close to or exceeded its design can withstand the upper or lower limit , which is the life of the machine are influential . ( Of course , non-original power mentioned here , or good workmanship , poor quality products , do not mention it. )
The more important question may be the books of data security, automatic protection of a sudden stop working for a computer is a terrible thing , especially a lot of friends without the battery . Sometimes inexplicable restart the computer , and this is also relevant .
1.3
For the original power supply , the manufacturers are aware of their power needs much load capacity , calculated from the nominal voltage and current security certainly far more accurate .
However, if the use of non- original equipment adapter , such as general-purpose transformers and the like, these issues can not be taken seriously , this is the user can only try to think of ways to get from the power supply parameters are compatible , but the internal resistance of each adapter is different, nominal voltage tolerance may be different, the nominal output voltage variation range of the current may also vary if you are not careful measurements of the relevant values , certainly , there is a risk
Daily Archives: May 28, 2014
Instructions to buy laptop power adapter
As a family of books , is an important accessory power adapter , power adapter when purchasing everyday , we will always meet original and non-original price difference is more, this time on how to choose? This article will briefly introduce our Things to know when the optional power adapter . In looking for your help .
Tools / materials
Computer power adapter of the same nominal voltage, output current of the power supply voltage adapter can pass the same , the output current is different, can not be used on the same books . The basic principle is that a large nominal current of the power supply can replace a small nominal current of the power supply. Estimated that someone would think so , I feel great nominal current of the power will burn the books , because the current big thing. In fact, much the same voltage current situation depends on the load , Oh, think of junior high school physics know . When the books when the high-load operation , the current bigger, when the books go into standby , the current is smaller, a large nominal current of the power supply has sufficient current margin. Conversely, someone with 56w 72w power supply instead of using them is also no problem , because the power adapter is usually designed to leave a margin , load power must be less than the power supply , so this instead of general use is feasible, but the rest of the power headroom rarely , once you pick up a lot of books peripherals, such as two usb hard drive, then cpu running at full speed , then there is a base, a CD-ROM drive at full speed to read the disk , plus the same time charging the battery, estimated to be dangerous , you should feel free to feel power is not already boiled eggs. So it is best not to use a small electric current instead of high-current power supply .