Hok Chun Ma

I hold a Bachelor of Engineering (BEng) in Electronic Engineering and possess over 3 years of practical experience as an Electronics Engineer II in the power electronics industry. During my academic studies, I developed a foundation in three-phase power systems, integrated power electronics and analog circuits. Under the employment, I had experience in testing, debugging, failure analysis and providing a testing report for AC/DC power supply units (PSUs) up to 1000W.

Additionally, I assisted senior engineers with thermal management, voltage derating and efficiency optimization for PFC, LLC and Flyback converters to ensure they met testing specifications.

Electronic Engineer II - Chicony Power Technology Hong Kong Limited - Hong Kong

(2022-10 - 2026-02)

• Product Development Support: Collaborated with senior and principal engineers to assist development and validate high-power PSU solutions, including a 317W (55V/5V), 500W (56V), 1000W (56V) AC converters and a 500W(56V) DC converter.
• Test Setup Optimization: Optimized CE/RE test setups by establishing low-impedance ground paths via large-surface-area copper interfaces between the PSU chassis and ground plane, improving CEMI/REMI test consistency and repeatability.
• Comprehensive Testing: Executed performance evaluations focusing on efficiency, thermal stability, and component voltage derating for PFC, LLC and Flyback topologies.
• Failure Analysis(FA): Conducted root-cause analysis on failed units; generated detailed test reports to identify design flaws or component defects.
• Prototyping & Rework: Built and tested engineering samples; performed precise PCBA rework to support iterative design improvements and repaired the damaged PSUs caused by destructive testing.
• Compliance & Safety: Performed Hi-pot, Surge, EMI/EMC and Short Circuit Protection (SCP) testing to ensure adherence to industrial standards.
• Data Analysis & Documentation: Documented raw data measurement data to characterize and plot efficiency – input voltage curves, providing critical empirical data for design validation.

Higher Diploma in Engineering - Electrical Engineering - HKU School of Professional and Continuing Education (HKU SPACE) (2017 - 2019)

BEng - Electronic Engineering - The Hong Kong University of Science and Technology (HKUST) (2019 - 2022)