| 摘要 |
<p>Disclosed is a portable charger having a shape and a size such as those of a name card or a credit card, having an emblem such as an advertisement, or the like, marked on an outer surface thereof, and having a universal serial bus (USB) on-the-go (OTG) interface. The portable charger comprises a housing including an upper plate and a lower plate disposed to be spaced apart from one another, and a circuit unit disposed between the upper plate and the lower plate of the housing. The circuit unit comprises a first connector receiving external power or data, a second connector outputting internal power or data, a third connector receiving data of a memory inserted from the outside, and a charging/discharging unit charging input power through the first connector and discharging charged power through the second connector, and an interface control unit outputting input data to the second connector through a first connector or the third connector, or outputting input data to the memory through the first connector.</p> |
