Hybrid power supply-based high-power loudspeaker box, and power supplying method for increasing power of loudspeaker box

A hybrid power supply-based high-power loudspeaker box, comprising:

• an audio input unit, a power amplification unit, a loudspeaker, and a power supply management module,
• wherein the audio input unit is used to receive an input audio signal;
• an input terminal of the power amplification unit is connected to an output terminal of the audio input unit, and is used to receive an audio signal output by the audio input unit and amplify the audio signal;
• an input terminal of the loudspeaker is connected to an output terminal of the power amplification unit, and the loudspeaker is driven by the amplified audio signal output by the power amplification unit to make a sound;
• the power supply management module comprises a power supply power-supplying unit, a battery power-supplying unit, and an FET control unit;
• an input terminal of the power supply power-supplying unit is connected to an external power supply;
• the battery power-supplying unit is connected to an output terminal of the power supply power-supplying unit after being connected in series with the FET control unit;
• and
• the power supply management module automatically switches a conducting state of the FET control unit according to a power amplification power required by the power amplification unit and a change of a system voltage corresponding to the power amplification unit, adjusts working states of the battery power-supplying unit and the power supply power-supplying unit, and dynamically supplies power for the power amplification unit.