M.Phil. Student, University of Macau
Research Interests:
Power Management, Power Electronics, Integrated Circuits
Email: Ricardo.Sung@outlook.com
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News

Education

University of Macau, Taipa, Macau SAR, China
Aug. 2022 - now
Master of Philosophy (M.Phil.) of Microelectronics
GPA 3.56/4.0
Supervisor: Yan Lu, Mo Huang
University of Electronic Science and Technology of China, Chengdu, Sichuan, China
Bachelor of Optoelectronic Information Science and Engineering
GPA 3.67/4.0

Sep. 2018 - June 2022

Publication

  1. Shousheng Han*, Fei Song*, Zhongyao Zhu, Xiaoming Wu, Hanjun Jiang, Tianling Ren, Yan Lu, A LEGO-Like Easy-Stacking Step-Up SC Converter with Ultra-High and Wide VCR Using All Input-Stress-Only Devices, 2025 IEEE Custom Integrated Circuits Conference (CICC), 2025.
  2. Fei Song*, Shousheng Han*, Rui P. Martins, Yan Lu, An 85-230V AC to 3.3-4.6V DC 1.52W Capacitor-Drop Sigma-Floating-SC AC-DC Converter with 81.3% Peak Efficiency, 2025 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA, 2025, pp. 1-3, doi: 10.1109/ISSCC49661.2025.10904504.
  3. Fei Song, Ying Zhang, and Jing Zhang, Optimization of CNN-based Garbage Classification Model, CSAE 2020, New York, USA, Article 107, 1–5. https://doi.org/10.1145/3424978.3425089

Project

  1. An 85-230VAC input and 3.3-4.6VDC output AC-DC converter
    Oct. 2023 - Oct. 2024
    • A Sigma-Floating-SC topology is proposed to achieve 81.3% peak efficiency and 1.52W maximum output power.
    • Up to 10% increased efficiency over a large load current range, compared with prior works.
    • The design is fabricated in a 180nmBCD process and the manuscript has been accepted by ISSCC 2025.
  2. Ultra-Light-Weight Multi-Chip Easy-Stacking Step-Up SC DC-DC Converter with Ultra-High and Wide VCR
    Oct. 2023 - Oct. 2024
    • The design is fabricated in a 180nmBCD process and the manuscript has been accepted by CICC 2025.
  3. A fast-transient response single-input-multiple-output DC-DC converter
    Sep. 2022 - Oct. 2023
    • The design utilize an auxiliary capacitor stacked with the input power source to increase the inductor charging speed and thereby improve the transient response.
    • Collaborated with 3Peak INCORPORATED.
  4. Low-power, high transient response LDO design without off-chip capacitors
    Nov. 2020 - Aug. 2021
    • Developed a bandgap with 1.2V voltage reference and 50nA current reference, whose power consumption was less than 200nW, in the temperature variation range of -40 to 125 degrees celsius.
    • Developed a circuit of super positive feedback and self-bias amplifier, with static power consumption of 3-7uA and high bandwidth of 80M-160MHz.
    • Won the first prize of the National University Student Integrated Circuit Innovation and Entrepreneurship Competition in Southwest Devision (2021).
  5. Smartphone-based Analysis of Non-destructive Apple Brix Measurement
    Apr. 2021 - Aug. 2021
    • Designed an optical system using Zemax OpticStudio to achieve Czerny-Turner Spectroscope structure using a positive (converging) lens, two spherical mirrors, a blazed grating and a linear CCD.
    • Designed a CCD driver board including a Xilinx FPGA, a Toshiba linear CCD, a high-speed and high-precision ADC and so on to capture light spectra and transmit digital spectra data to smart phones.
    • Programmed verilog HDL codes on Xilinx FPGA to drive CCD and ADC, besides communicating with smart phones by USB protocol.
    • Won the second prize of the National University Student’s Opt-Sci-Tech Competition (2021).
  6. Intelligent Biological Microscope
    Apr. 2020 - July. 2020
    • Designed a multi-method of resizing and merging limited images under microscopes to make up a full cell image.
    • Migrated the M2Det algorithm to suit the blood cell recognition, segmentation, and counting.
    • Developed a dataset of blood cells with five classifications including neutrophils, lymphocytes, monocytes, eosinophils and basophils.
    • Won the first prize of the 8th National University Student’s Opt-Sci-Tech Competition (2020) and the first prize of China-U.S. Young Maker Competition in Chengdu Division (2020).
  7. Intelligent Device to Protect Children left in Cars
    Apr. 2019 - July. 2019
    • Designed a multi-model network merged by AgeNet and Yolo-v2 to detect children left in cars.
    • Used sensors such as temperature and humidity sensor, Oxygen sensor and AIoT to send data to private servers.
    • Programmed a mobile app to receive warnings sent by servers to remind children’s guardians of the states in cars about their children.
    • Won the third prize of the National University Student’s Opt-Sci-Tech Competition (2019).

Honors & Awards

  1. First Prize of the National University Student Integrated Circuit Innovation and Entrepreneurship Competition in Southwest Devision, 2021.
  2. Second Prize of the National University Student’s Opt-Sci-Tech Competition, 2021.
  3. First Prize of the National University Student’s Opt-Sci-Tech Competition, 2020.
  4. First Prize of China-U.S. Young Maker Competition in Chengdu Division, 2020.
  5. Third Prize of the National University Student’s Opt-Sci-Tech Competition, 2019.
  6. Third Prize of the National Undergraduate Engineering Training Integration Ability Competition in Sichuan Province Division, 2019.

Work Experience

Supervised Students

Qingpeng, ZOU (MPhil student, University of Macau)