Compaq Laptop Ac Adapter are made from the highest quality parts, the Compaq Ac Adapter are tailored made according to the original size, whether the Ac Adapter appearance, size and quality are the same as with the original. Every Compaq Ac Adapter should be under strict quality control including filtration and safety testing of voltage,capacity and Compaq Laptop Ac Adapter core before leaving the factory, and has passed the authentication of CE, UL, EMC, CQC, ROHS, etc.
The underlying principle is the nominal current of small power can be replaced by a large nominal current of the power. It might be misunderstood, someone thinks great nominal current of the power will burn Notebook, actually how large the current depends on the load in the case of the same voltage, that is, the work of the Compaq laptop, the current was bigger when the notebook in a high-load operation and smaller when the laptop turned into standby state, in short, the current equals to the voltage added to the notebook divide by the notebook's equivalent resistance. Large nominal current Compaq laptop ac adapter has sufficient current margin and will not overheating or low output voltage after replace a small nominal current power.
If you use a small current replaced a high-current Compaq adapter will ouccers such dangerous. But some friends instead of 72w with a 56w Compaq adapter is also no problem, that is because power adapter is usually designed to leave a margin, load power must be less than the power, therefore it is feasible, but the margin on the remaining Compaq ac adapter power are only a few.
Once you have received a lot of notebook peripherals, like two usb hard drive, then cpu running at full speed, the drive at full speed to read the disk and coupled to a battery charging at the same time, that would be dangerous, keep your hands touch the Compaq adapter to feel whether it could already boiled eggs. The 16w that the 72w adaper more than the 56w adapter is to deal with this situation. So it is best not to use a small high-current power instead of high-current Compaq ac adapter.
Do not doubt your Compaq ac adapter problems, first check that what are you doing with your laptop, whether like the above said two usb hard drives, cpu running at full speed, hard disk read and write crazy, drive at full speed to read the disk, while charging the laptop battery, stood loud music, the screen brightness of the largest wireless network card has been detected signal and so on, make good use of power management.
Compaq adapter to the laptop is different from the battery supply, the battery's output is pure DC, very clean, directly access to DC transformer modules, the battery voltage is neither possible nor necessary to design very high, the voltage requirements of microelectronic circuits analog signals and digital signals is 5V for the sector, to get rid of PSA module efficiency and pressure requirements, 10.8V is enough, and Li-ion battery chemistry EMF determines the output voltage of a power-saving cores can only be around 3.6V.
Therefore, many cells are based on three series of the way, 10.8V have become a very popular battery voltage. Some batteries' nominal value is a little larger than integer multiple of 3.6V, for instance, 3.7V or 11.2V etc, in fact it's in order to protect the battery, or a manipulation in the calculation of the design capacity of the Compaq battery.
If you use the Compaq ac adapter, the situation is more complex, first you need to steady voltage and do further filter to ensure that stable wokes when the power performance is not in a good situation, after the regulator output voltage is divided into two parts, one part for the work of the Compaq laptop ac adapter, another part to the battery charge.
Compaq ac adapter to that part of what happened when the same with the battery-powered, and to that part of the battery through the battery charge control circuit can be added to batteries, the control circuit can be very complicated, so the supply voltage must be greater than the Compaq laptop battery, then it will have sufficient differential voltage is supplied to the charge control circuit margin each unit. Final truly voltage added on the batteries is by no means 16V, please rest assured.
