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发明公开
CN105932733A OTG电源及其供电方法、OTG设备和移动通讯设备 有权

OTG电源及其供电方法、OTG设备和移动通讯设备
摘要：
本发明公开了OTG电源及其供电方法、OTG设备和移动通讯设备，以解决现有技术中，在主设备与从设备连接状态时，即使主设备处于休眠状态仍然需要使用升压后的电压为从设备供电，存在较大功耗。所述OTG电源，包括电池，相连接OTG器件和OTG接口，第一供电单元和第二供电单元，第一供电单元和第二供电单元均分别与电池、OTG器件和OTG接口的总线电压端连接；OTG器件，用于获取OTG接口连接的从设备的工作电压参数并确定供电模式；第一供电单元，用于第一供电模式时将电池的电压升压为第一电压并提供至OTG接口的总线电压端；第二供电单元，用于第二供电模式时将电池的电压直接提供至OTG接口的总线电压端。
摘要（英）：

The invention discloses an OTG power supply, a power supply method thereof, OTG equipment and mobile communication equipment, so as to solve a problem in the prior art that the consumption is larger because an increased voltage is needed to be supplied to slave equipment even if main equipment is in a dormant state when the main equipment and the slave equipment are connected. The OTG power supply comprises a battery, an OTG device, an OTG interface, a first power supply unit and a second power supply unit, wherein the OTG device is connected with the OTG interface. The first and second power supply units are respectively connected with the battery, the OTG device and a bus voltage end of the OTG interface. The OTG device is used for obtaining a working voltage parameter of the slave equipment connected with the OTG interface, and determining a power supply mode. The first power supply unit is used for increasing the voltage of the battery to a first voltage in a first power supply mode, and supplying the first voltage to the bus voltage end of the OTG interface. The second power supply unit is used for directly supplying the voltage of the battery to the bus voltage end of the OTG interface in a second power supply mode.

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