▎ 摘　　要

NOVELTY - The charger has a microform AC-DC conversion circuit arranged in a smart mobile phone for reducing problem of inconvenient carry of a mobile phone charger. A core device of the microform AC-DC conversion circuit is provided with an ultra-thin electronic transformer and a thin filter electrolytic capacitor. A foldable-type built-in charger power supply pin i.e. two-pin structure, is arranged in a rear shell of the mobile phone without affecting normal carrying and use. The foldable-type built-in charger power supply pin is turned about 90 degrees. USE - Graphene material based mobile phone built-in charger. ADVANTAGE - The charger facilitates thickness of whole power supply can be controlled within 5 mm. DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of a graphene material based mobile phone built-in charger. '(Drawing includes non-English language text)'