Utilizing microcontroller (MCU) technology as the core control unit, combined with signal acquisition technology from various sensors such as temperature sensors and pressure sensors, enables real-time monitoring of the operational parameters of the heat pump system. Additionally, it incorporates advanced control algorithms, such as fuzzy control and PID control, to precisely regulate the start/stop and speed of the compressor, as well as the operational status of components like fans and electronic expansion valves, ensuring the heat pump system operates efficiently and stably. Furthermore, communication technology is incorporated, enabling data exchange with smart home systems for remote monitoring and intelligent control.

Based on power electronics technology, power switching devices such as IGBTs (insulated-gate bipolar transistors) are typically used, and PWM (pulse width modulation) technology is employed to regulate output voltage and frequency. Equipped with advanced motor control algorithms, the system can dynamically adjust motor speed in real-time according to changes in compressor load, thereby achieving efficient compressor operation. Additionally, the system integrates multiple protection functions, including overcurrent, overvoltage, undervoltage, and overheat protection, to ensure the safe and reliable operation of the compressor and driver. Furthermore, advanced electromagnetic compatibility (EMC) design technology is employed to minimize interference with surrounding electronic devices.

The wired controller is microprocessor-based and integrates functional modules such as button input, LCD VA screen display output, and communication interfaces. It is powered by a 12VDC working voltage and supports RS485 communication to exchange data with the heat pump main control board or other devices. It is also compatible with WiFi communication and APP remote control functions. It is equipped with a weekly timer function, which allows users to intuitively set and view timing parameters through the LCD VA screen, enabling flexible local and remote control.

Utilizing advanced control algorithms, including vector control (FOC), direct torque control, and square wave/sine wave modulation strategies, this system achieves rapid and smooth startup, high dynamic acceleration performance, and high carrier modulation technology, significantly reducing operational noise while enhancing system efficiency. The driver board supports high-precision speed and torque control, while integrating multiple protection mechanisms such as overcurrent, overvoltage, undervoltage, overheat, and stall protection, as well as soft start/soft stop functionality, ensuring the safe and reliable operation of the motor and driver. The compact design further reduces overall size, meeting the requirements of high-performance, high-integration applications.

The digital PFC technology, which employs proprietary core algorithms, achieves energy efficiency of over 98%. The 3kW single-phase model is based on an active PFC design, which uses control circuits to dynamically adjust the input current waveform in real time, ensuring it is in phase with the input voltage. This significantly improves the power factor and reduces harmonic content, meeting power system harmonic standards and energy efficiency requirements; The 7KW three-phase model adopts a full-bridge B6 topology structure combined with digital PFC algorithms to achieve efficient and stable conversion of three-phase power. It supports WiFi communication with upper-level computers, enabling real-time monitoring and adjustment of power supply operating parameters to meet intelligent management requirements.