typec dock pd charging means that one machine can simultaneously meet the common functions of charging, network, audio and video, data transmission and so on, providing 1 Type-C interface, 4 USB3.0 interfaces, 1 gigabit network port, 1 HDMI interface (support 4K), 1 VGA interface, TF\/SD dual card slot and 1 3.5 audio interface.
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Charging is a Chinese term referring to the process of replenishing a device such as a battery. The principle is to let the direct current pass in the opposite direction of the discharge to restore the active substance in the battery. It has extended meanings such as study, work and so on. 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