Working principle: The charging treasure is a portable device that integrates power storage, voltage boost and charge management. The storage medium is generally lithium battery. The voltage of the lithium battery is between 2.7-4.2V, and the voltage decreases with the decrease of electricity. The voltage of 2.7-4.2V is similar to the built-in battery voltage of the mobile phone, and the same voltage can not directly charge the mobile phone. Therefore, the external output of power from the mobile power supply is necessary to have a booster system, which boosts the 2.7-4.2V lithium voltage to 5V, so that you can charge the mobile phone.
The charging bank generally consists of lithium batteries or polymer lithium batteries as storage units. It is itself a lithium battery polymer storage device, voltage regulation through the IC chip, and then charging or storage by connecting the power line and then the stored electricity can be released.
The working principle of the boost inductor of the charging treasure: The most widely used scenario of inductors in the power supply, boost circuit and buck circuit requires an inductor to store energy and release energy. Many small white friends are all too clear about the principle of inductance boost circuit, all the boost and buck circuit, are used in the \"inductive current can not mutate\" this important principle. That is, the current in the inductor has inertia, and this inertia is the energy stored by the inductor.