Method and circuit for realizing automatic charging and startup and shutdown

Abstract

The invention discloses a method for realizing automatic charging and startup and shutdown. The method comprises the following steps: a turned on storage detection port triggers a detection circuit tooutput a charging signal to a second charging management module, and outputs a voltage to a charging input port through a charging output port so as to achieve a charging action; a turned on startupand shutdown detection port outputs a shutdown signal to a PCBA of an electronic terminal to perform a shutdown action; when the electronic terminal is removed from a charging terminal, the startup and shutdown detection port disconnects with the storage detection port, and the startup and shutdown detection port outputs a startup signal to the PCBA of the electronic terminal to perform a startupaction. The invention further discloses a circuit for realizing automatic charging and startup and shutdown. According to the circuit disclosed by the invention, a charging control circuit and a startup and shutdown control circuit are combined with each other to be achieved by one control circuit, thereby not only realizing automatic startup and shutdown during the charging and automatic startupwhen the charging is disconnected so as to reduce the power consumption, but also reducing the volume and the design difficulty of the circuit board.

Description

technical field [0001] The invention relates to an automatic charging and switching machine realization method and circuit. Background technique [0002] At present, the existing electronic terminal charging and automatic switching methods are independent of each other, and the circuit parts need to be designed independently, which not only increases the volume of the PCB board but also increases its design complexity, and it is easy to have too many circuits and action signals. Mistakes make bad. [0003] The existing bluetooth earphones or wireless earphones are connected by wires between the left and right earphones, which gives people the feeling of an invisible bondage when used, which reduces their sense of use experience; due to the small size of the in-ear wireless earphones, if the traditional earphones are used The charging of the micro USB interface takes up too much space for the wireless earphones, and there is not enough space on the PCB board to place the mic...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing electronic terminal charging and automatic switching methods are independent of each other, and the circuit parts need to be designed independently, which not only increases the volume of the PCB board but also increases its design complexity, and it is easy to have too many circuits and action signals. Mistakes cause bad

[0003] The existing bluetooth earphones or wireless earphones are connected by wires between the left and right earphones, which gives people the feeling of an invisible bondage when used, which reduces their sense of use experience; due to the small size of the in-ear wireless earphones, if the traditional earphones are used The charging of the micro USB interface takes up too much space for the wireless earphones, and there is not enough space on the PCB board to place the microUSB interface; the existing in-ear wireless earphones are small in size, easy to lose when not in use, and difficult to carry, which is easy to cause damage to users. Unnecessary trouble; because the AD / DA conversion takes time, the left and right channels of the wireless earphones are not synchronized when listening to music or a phone call, resulting in a delay, which not only reduces the sound quality, but also further reduces the user experience

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