Headphone adapter and mobile terminal for reducing power consumption of mobile terminal

Abstract

The invention discloses an earphone adapter for reducing power consumption of a mobile terminal and a mobile terminal. The earphone adapter includes a USB interface, an earphone interface, a pull-down module connected to a detection pin of the USB interface, and a power pin connected to the USB interface The connected switch module, when the USB interface is connected to the mobile terminal, if no earphone plug is inserted into the current earphone interface, the detection pin is suspended and the switch module is closed, so that the path between the power supply pin and the earphone interface is disconnected. Open; if the earphone plug is inserted into the current earphone interface, the detection pin is grounded through the pull-down module and the switch module is turned on, so that the power supply pin is connected to the earphone interface. When the mobile terminal triggers an earphone event, the power supply pin Power on and output the working voltage to the headphone jack. It effectively avoids the problem of power consumption caused by the insertion of the earphone adapter regardless of whether the earphone is inserted or whether the earphone is working, reduces the power consumption of the mobile terminal, and prolongs the battery life.

Description

technical field [0001] The invention relates to the technical field of mobile terminals, in particular to an earphone adapter and a mobile terminal which reduce the power consumption of the mobile terminal. Background technique [0002] Now due to the rapid development of smart phones, the layout space inside the mobile phone is becoming more and more limited, resulting in more and more mobile phone manufacturers canceling the traditional 3.5mm headphone jack and adopting USB headphone adapters. This solves the problem of mobile phone design and is also compatible with the user's original 3.5mm earphones. However, when the mobile phone does not trigger headphone events such as playing music or calling, but only plugs in the headphone adapter, the mobile phone will start to consume power rapidly, causing the mobile phone to consume too much power. Maybe when you want to listen to music, the mobile phone has no power. [0003] Thereby prior art still needs to improve and impr...

AI Technical Summary

Problems solved by technology

However, when the mobile phone does not trigger headphone events such as playing music or calling, but only inserts the headphone adapter, the mobile phone will start to consume power rapidly, causing the mobile phone to consume too much power. Maybe when you want to listen to music, the mobile phone has no power.

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