2012年11月24日星期六

How to Choose Cell Phone Travel Charger and Car Charger


Travel charger
The volume of cell phone travel charger is relatively small which is easy to carry. So a lot of users use it. Besides some matters when you choose and buy docking station charger, there are other aspects need to be paid attention.

1 interface
When you choose a travel charger, the first thing you should pay attention to is that the interface should be able to perfectly suitable for mobile phone charge interface. Avoid by all means of choosing loose interface or binding interface travel charger. Interface loose will keep the cell phone receiving unstable currency and it may form a larger instantaneous electric current which will cause damage to the mobile phone motherboard; And bind interface is very easy to break cell phone charge interface.
2 structures
The interface line of travel charger is fixed in the transformer or separated with transformer. The advantages of the latter are when you charge for different types of mobile phone, you simply need to replace interface line which is convenient and economy. In addition, this kind of travel charger generally designs with the overload protection circuit.

Car charger
The cell phone car charger is used car cigarette lighter as power supply socket which will charge for mobile phone directly. As the voltage provided by car is low, so the car charger internal need to be equipped with overload protection circuit. It often uses model 34063 IC or model 2907 triode to realize protection function. And the difference between the above two kinds is that the front of the car charger plug has an insurance tube. When the current exceeds withstand range of overload protection circuit, the fuse will immediately be fuse. It will have the protection function. Of course, compared with the choice of travel charger, car charger adds an interface choice -the plug which linked with car should be firmly planted in the car cigarette lighter.

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