Step-down socket integrated with a pure sine wave voltage conversion function

A step-down socket integrated with a pure sine wave voltage conversion function, comprising:

• an AC input module (1) configured to receive AC mains power and deliver AC mains power to a rectification and filtering module (2), which rectifies and filters the AC mains power into DC,
• a main control unit (3), an inverter bridge module (4), and a voltage and current feedback module (5), wherein the main control unit (3) generates a sine wave pulse-width modulation (SPWM) signal to control the switching and duty cycle of the inverter bridge module (4), causing the inverter bridge module (4) to convert the DC from the rectification and filtering module (2) into a pulsed voltage and output the pulsed voltage to an energy storage and filtering module (6);
• wherein the inverter bridge module (4) comprises a plurality of MOSFETs, whose input is connected to the rectification and filtering module (2), and whose output is connected to the energy storage and filtering module (6);
• the energy storage and filtering module (6) is connected to the inverter bridge module (4) for filtering the pulsed voltage into a pure sine wave AC voltage, which is then output through an AC terminal;
• the voltage and current feedback module (5) is connected to the output end of the energy storage and filtering module (6) for detecting the output voltage and current, and for transmitting feedback signals to the main control unit (3);
• the main control unit (3) adjusts the SPWM signal according to the feedback voltage and current signals to stabilize the output sine wave voltage.