subject: Examine HP Pavilion DV1620 Laptop AC Adapter [print this page] Have you notice the description of the AC adapter? Do you know the meaning of each number? Take this HP Dv1620us AC adapter for instance; you can see the description as this:
65W HP Pavilion Dv1620us Laptop AC Adapter
Input: AC100-240V (worldwide use)
Output: DC18.5V 3.5A
There may be more detail of the compatible models and something else. Today we are going to talk more about the voltage and the current. Some people are concerned about the replacement product whether it fits for the original one.
As we all know, the power adapter is made of two parts: one is the power adapter, on the other side is the power cord and plug which access the notebook. If one part of a power adapter got damaged. Sometimes we just replace that part instead of all set. It can save certain amount of money. If you have extra adapter at home, that will be good. Thus like this Dv1620us AC adapter , some may ask the relation between the voltage and watt. It's not so complex. Can these different watts adapter applied to one laptop?
Some friends have misunderstood, that a large nominal current of the power supply will burn books, because the current big thing in. In fact, what the current situation in the same voltage depends on the load, that is, the work books, when the books when the high-load operation, the current bigger, books go into standby when the current on the smaller, short current equal increase in books on the equivalent resistance voltage divided by the books. Nominal current of the power supply large enough current margin, not in place after a small nominal current of the power of overheating or low output voltage conditions. As this Dv1620us AC adapter , the 75 watts adapter of the same brand can be used with my laptop.
On the contrary, instead of using a small current-current power supply, there is potential danger. But some friends with 56W instead of 72W of power have no problem with them, because the power adapter is usually designed to leave a margin, load power must be smaller than the power, so this place is in general use feasible, but the margin on the remaining power supply is very small.
As to this high watts laptop AC adapter which can be used in the lower current adapter, it needs time to prove. Some people still care about the potential risk. Some enjoy the convenience of the replacement, others just stand by.
