Hisense USA Corporation

Hisense International Co., Ltd.

Hisense Mobile Communications Technology Co., Ltd.

Xintao Zhang

Wenjuan Du

Ermeng Hu

Rongyi Yin

Jianmin Pi

The disclosure discloses a mobile terminal, a DC-charging power source adaptor, and a charging method, where the mobile terminal detects whether two communication pins of a USB interface thereof are shorted, and if an inserted external device is a power source adaptor, then the mobile terminal communicates with the power source adaptor, so that the mobile terminal identifies automatically the type of the externally connected charging device. Also a specialized rapid charging mode is designed for a DC-charging power adaptor, so that a battery being charged routinely is DC-charged at large current using charging voltage output by the DC-charging power source adaptor, and a volt value of the charging voltage is adjusted dynamically to the varying voltage of the battery core.

Mobile terminal, DC-charging power source adaptor, and charging method

The application discloses a power source adaptor for charging directly and a mobile terminal, where the power source adaptor for charging directly is timed to communicate with a mobile terminal which is a charging object, in the UART communication mode to obtain a change in voltage of a battery in the mobile terminal, adjusts dynamically a volt value of charging voltage output by the power source adaptor for charging directly according to the varying voltage of the battery, and charges directly the battery in the mobile terminal using the charging voltage.

Power source adaptor for charging directly and mobile terminal

The disclosure discloses a mobile terminal, a DC-charging power source adaptor, and a charging method, the mobile terminal comprising: a battery configured to store electrical energy; a USB interface configured to be engaged with an external device; and a microprocessor configured to determine whether two differential data pins of the USB interface are shorted, upon detecting an external device being inserted into the USB interface; and if so, to communicate with the inserted external device, wherein if the external device is a DC-charging power source adaptor, then the DC-charging power source adaptor switches two communication pins of a charging interface thereof from being shorted by default to being disconnected, and communicates with the microprocessor; and the microprocessor detects voltage of the battery after communicating successfully with the DC-charging power source adaptor, and if the voltage of a battery core lies in a range delimited by preset DC-charging thresholds, then the microprocessor controls the battery to be DC-charged using charging voltage output by the DC-charging power source adaptor, and determines a value of the charging voltage of the DC-charging power source adaptor from the current voltage of the battery core.

Growing community of inventors

Qingdao, China

Xintao Zhang