1. The current of the data cable connected to the mobile phone charger is very small, and the current and voltage of the mobile phone charger is much larger than that of the USB, so the mobile phone charger will heat up.
2. The mobile phone charger can charge faster than the computer. That is because the mobile phone charger has high voltage, large charging current, low computer voltage and low current, so the computer does not heat much, and that is, do not play with the mobile phone while charging. When charging, the mobile phone charger load is equal to the charging load + the mobile phone power supply load. Therefore, playing with the mobile phone while charging the mobile phone charger will make the mobile phone charger hotter and may burn the charger.
Will the charger explode if it gets hot?
When the mobile phone is charging, it is normal for the charger to generate heat, which is related to the current intensity output by the charger and the ambient temperature. With the popularization of smart phones, charger requirements are getting higher and higher, and the 500ma charger in the era of feature phones can no longer meet the user's demand for charging speed.
Therefore, our current common charger currents are all above 1A, and many of the charger currents have reached 2A.
In addition to the increase in current, the size of the charger is also a problem. For the convenience of carrying, everyone tends to prefer smaller chargers. However, the smaller the size, the worse the heat dissipation performance, and the higher the requirements for electronic components. Take the capacitor as an example. The volume of high-voltage capacitors is getting smaller and smaller while maintaining the same capacity, and they are better in terms of withstand voltage and temperature. If the withstand voltage is not enough, the capacitor will break down, and if the temperature is not enough, it will explode. Open the capacitor.
In addition, the high temperature of the charger has a great relationship with the switch of the charger. If the switch tube specification is not high, then the current will pass through and the heat will be more.