#Ac adapter tv#

Do the adapters somehow have something to do with converting from alternating current to direct current? Whenever you have an AC adapter, what exactly does it do inside the little box or brick? I know that somehow it turns the AC power from the wall into a form that an electronic device can use, but why can't the electronics use the AC power straight from the wall? I remember too from physics class that there is direct current, but I don't remember what it does.

#Ac adapter tv#

I just know that the electricity flows in one direction rather than back and forth like with alternating current.ĭon't different countries have different types of AC outlets? I seem to remember seeing that on TV one time. Like you, I don't remember enough from my physics class to remember why direct current is used in different electronics. The AC adapter can also convert the AC power into direct current that is more useful for most devices. I'm not sure if some things actually increase the voltage of the wall outlet or if that is not allowed by various regulations. I don't know if the reverse of that is true or not, though. If you had 120 volts of charge going into a phone, it could end up ruining the circuits and battery. That is way too much for most devices, though. All standard wall outlets have a 120 volt charge.

June 4, - The main job of the adapter is to convert the voltage of the wall outlet to a level that is acceptable for the device you are using. Meanwhile, I ordered a replacement adapter online for 25% of what they were selling them in stores. Fortunately, I had a backup computer I could use for a week. For that reason, the price of notebook AC adapters in stores is outrageous. Stores realize that if you don't have a power cord to your computer that you are probably desperate to get one. By the time I realized it was missing, I was already back home. Just recently, though, I was traveling and left my cord behind at a hotel. That time wasn't too much of a problem, because I had a friend with a spare cord that he let me have. Luckily, I had remembered to unplug the cord before I left, so he didn't get hurt. In the first case, I got a new puppy, and he decided he wanted to chew on the cord one time when I was gone. Over the past two years, I have had two instances where I had to replace my laptop cord. If you own a laptop, I would highly suggest buying a laptop AC adapter to keep as a backup. Since that time, I've just gotten an AC adapter cord that plugs right into the phone itself. Lucky for me, I had that adapter and my phone charger, so I could make a couple of calls to have someone help me. Not surprisingly, my phone happened to have died right before that. One time, I had car problems, and I was kind of our in the middle of nowhere. A friend got it for me as a gift, and I didn't think I would need one either, but it has saved me a couple of times. Something else that I would suggest people buy even if you don't think you will ever need it is an AC car adapter.

I think I'll look into buying a backup now. I don't think I ever realized how much the cords actually cost.