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 principle of the charger booster is to use the characteristics of inductance and capacitance to store energy through the input voltage through the inductance, and then output energy through the capacitor, so as to achieve the low voltage to the required voltage.
Specifically, there is an inductor and a switching tube inside the charger booster, when the input voltage passes through the inductor, a magnetic field will be generated, when the switching tube is closed, the magnetic field will collapse, and the voltage will be output after the capacitor filter.
By repeating this process over and over again, the input voltage can be increased to the desired voltage.
The principle is to use the inductor and capacitor components in the circuit to stabilize the high voltage from the low voltage input. Specifically, the DC voltage at the input passes through the anti-vertical current of the inductor to become alternating current, and this alternating current is filtered through the capacitor element to obtain a stable output voltage.
At the same time, the switch tube in the booster also plays a role in controlling the current and voltage, so that the output voltage is stable and meets the requirements.