Vr headband having audio, data transmission, and charging functions, and control circuit

A control circuit having audio, data transmission, and charging functions, applied to a VR headband, wherein the VR headband comprises a headband body and an earphone, a power storage component, and a transmission line integrally disposed on the headband body;

• and the control circuit comprises:
• a DSP audio circuit, wherein an input end of the DSP audio circuit is connected to VR glasses, an output end of the DSP audio circuit is connected to the earphone, and the DSP audio circuit is configured to perform signal optimization on audio data inputted by the VR glasses and then output optimized audio data to the earphone;
• a data transmission circuit, wherein an input end of the data transmission circuit is connected to a USB-C base on the power storage component, an output end of the data transmission circuit is connected to the transmission line, and the data transmission circuit is configured to convert a differential signal inputted by the USB-C base and then output a converted signal to the transmission line;
• a charging circuit, wherein an input end of the charging circuit is connected to the USB-C base, an output end of the charging circuit is connected to a rechargeable battery in the power storage component, and the charging circuit is configured to buck a high voltage inputted by the USB-C base and then output a bucked voltage to the rechargeable battery;
• and
• a discharging circuit, wherein an input end of the discharging circuit is connected to the rechargeable battery, an output end of the discharging circuit is connected to the transmission line, and the discharging circuit is configured to boost a voltage outputted by the rechargeable battery and then output a boosted voltage to the transmission line.