System and method for data transmission and power supply capability over an audio jack for mobile devices

A system and method for data transmission and power supply capability over an audio jack for mobile devices are disclosed. A particular embodiment includes: a peripheral device including an energy storage component, a microphone using a microphone bias voltage, and a select switch configured to provide a first switch position wherein charging of the energy storage component using the microphone bias voltage via the microphone conductor is enabled, the select switch being configured provide a second switch position wherein charging of the energy storage component using the microphone bias voltage via the microphone conductor is disabled; and a mobile device and an application (app) executable in the mobile device to produce a switching tone on the audio signal conductor of the audio jack, the switching tone causing the select switch to transition to the first switch position or the second switch position. 公开了用于通过移动设备的音频插孔来进行数据传输和进行电源供应的系统和方法。个特定实施例包括：外围设备，包括能量存储组件，使用麦克风偏压的麦克风，以及被配置成提供其中通过麦克风导体使用麦克风偏压对能量存储组件进行充