中文English
ipda无线充hanxin360 2024-05-22 17:26 34
Is not possible, there is no development of this function, this is the tablet is not this kind of, and then it can not use wireless charging. The following is the expanded i...

Can Apple's official wireless Charger charge an ipad?

05/22/2024 17:26:19无线充新闻

  Is not possible, there is no development of this function, this is the tablet is not this kind of, and then it can not use wireless charging. The following is the expanded information on charging.

battery charge

principle

The process by which the battery receives electrical energy from the external circuit and converts it into the chemical energy of the battery. After the battery energy is consumed by discharge, it can be restored by charging, and it can be re-discharged to form a charge discharge cycle. Generally charged with DC current (also useful asymmetric AC current or pulse current). In different cases, different charging methods are used, such as constant current charging, constant voltage charging, floating charging, trickle charging, rapid charging or the combination of these methods.

According to the formula of power = voltage * current * time, in the case of fixed power, the charging time can only be shortened by increasing the voltage or increasing the current.

High voltage charging: high voltage low current mode, increase voltage, need to design multiple buck circuit in the charging circuit. When charging, the charger will heat up, the phone will also heat up, and affect the safety of the battery. [1]

Low voltage charging: Low voltage high current mode, increase the current, MCU MCU is introduced in the charger circuit and battery circuit to replace the buck circuit. Under the premise of low voltage and high current, the output of segmented cross current is realized by opening voltage loop. VOOC flash charge uses the solution of low voltage and high current, which ensures the safety and solves the problem of mobile phone charging heat. [1]

classification

Battery charging is mainly divided into: fast charging, ordinary charging