Potential factors in ac power adapter’s rising temperature

For many people, a laptop AC power adapter purchased are its rapid temperature rise. It's too hot to touch and may cause doubts about the quality of a portable power supply. And we know that power is always high, so that we can see, it's terrible, his hundred watts. This adapter is also like the very low power consumption of a machine table model. But it is not fire or their shortcomings. However, caused some companies such as IBM PC or other time a fire and explosion.In fact, as the temperature controller is within the scope of the draft, namely, the temperature is not within the normal range, it can be dangerous! So why is it called? What kind of weather will be beautiful? The switch can achieve efficiency 75-85%. The answer is here. The efficiency of power conversion are high enough is difficult to find better opportunities. Switching power voltage conversion in a certain loss of energy, reduced by a fraction of them in the form of waves on the heat loss, most of the courses. No switch, the power dissipation of energy, force and lack of heat.