1: Worked with a top doctoral team from the United States on the development of the world-class tunable laser module (iTLA) software firmware, and designed the MSA protocol.2: Guided electronic engineers in improving circuit designs.3: Utilized the STM32G4 MCU with excellent programming architecture, DMA UART communication, DMA SPI ADC sampling, DMA SPI DAC control output, and constant temperature laser control using PID algorithms, including both hardware and software PID temperature control. Achieved a relative accuracy of 0.002 degrees Celsius.4: Expertly applied artificial intelligence algorithms in Python for laser research, surpassing the skill level of ordinary engineers. Possessed the ability to ingeniously foresee and address hardware product issues.5: Mentored junior engineers, delegated tasks, and reviewed their weekly reports.6: Guided electronic engineers in solving circuit-related issues.7: Directed the testing department, and developed testing specifications and methodologies.8: Addressed departmental electronic, software, and algorithm upgrades and challenging issues.9: Took the lead in working on product software programming and provided guidance on circuit design.

Lead Firmware Developer, responsible for energy storage system BMS software design, and grid and solar charger software design. Main product software designs include:Solar Home System (SHS), using secondary car batteries as backup power sources, and multi-pack lithium iron phosphate battery packs in series and parallel connections with BMS management. This includes solar charging, discharging, inversion, BMS hardware and software design (using TI BQ40Z50R2), as well as maximum power point tracking, PWM control, charging algorithms, DC/DC, ADC, SPI, I2C, and more. Also developed products with Bluetooth and mobile communication, created network server platforms, and enabled communication with GSM, GPRS, and 3G networks, as well as Pay As You Go functionalities.Products:1:Photovoltaic charge controller2:Proficient in colorimetry, conducted in-depth research on quantitative LED color mxing calculations, and developed 5-color and 7-color mixing solutions to achieve desired color temperature and color products.3: GSM communication4: Automotive-grade BMS management system5: LAN-controlled display screen6: Performance evaluation of subordinates7 Reviewing weekly reports8: Arranging work for subordinates9: Key project development engineer, solving challenging departmental issues.

As chief software engineer worked in ICCNEXERGY company, The development of various types of switching power supply and battery pack charger and BATTERY PACK (BMS) for top customeServed as the Chief Software Engineer at the Guangzhou R&D Center of American company ICC Nexergy (Interplex), developing software for world-class clients such as BOSE and Motorola. Developed various battery pack chargers, switching power supplies, and battery management systems (BMS) for use in power tools, automotive electronics, solar energy, inverters, and more. Features include SMBus communication, PWM control, charging algorithms, DC/DC, and ADC algorithms. Developed a set of validators for verifying products on the production line, automatically burning code, and automatically verifying charging voltage and current. Precise control of charging voltage within 10mV and current within 10mA. Excellent charging algorithms and logic ensure the safety of charging products. Used AVR's C language. Company website for reference: http://www.iccnexergy.com/Job description:1: Proficient in digital power supply, controlling PFC by using power and voltage phase difference as control factors to improve power factor. PFC efficiency > 95%.2: Full-bridge inverter control, using SVPWM and SPWM technology.3: Charger and BMS programming.4. Recruiting and training students.5. Performance evaluation of subordinates6. Reviewing weekly reports7. Arranging work for subordinates8: Writing test specifications9: Writing product development specifications10: Leading R&D programming work and solving challenging departmental issues.Department: R&D Departmentrs in the word, for example: BOSE, MOTORONA and so on. And develop a calibrating tool for automatic programming products, automatic calibrating voltage, automatic calibrating current. Precise controlling charging voltage with tolerance within 10 mV and Current within 10 mA.