YOUSUNG HWANG

[Project] World's First Thunderbolt 5 Monitor Development (40WT95UF) | 2023 – 2024

• Led the complete circuit design and validation, from concept to mass production, for a flagship professional-grade monitor.
• Acted as the primary technical liaison between LG and global semiconductor leaders including Intel, Texas Instruments (TI), and Genesys Logic.
• Solved critical signal integrity and power delivery challenges by proactively collaborating with vendor FAEs, reducing the debugging period by an estimated 3 weeks.

[Project] Global Semiconductor Shortage Response | 2022

• Served as a key technical authority in a task force to mitigate the impact of the global semiconductor shortage.
• Rapidly analyzed, verified, and qualified over 30 alternative ICs (including PMICs, Scalers) from various vendors, ensuring performance and quality standards were maintained.
• Prevented critical production line shutdowns by providing clear technical guidance to the SCM team, minimizing business impact.

[Project] Global Field Issue Resolution & PMIC Optimization for UHD Monitors | 2020 – 2021

• Took sole ownership of all post-production technical issues for the main UHD monitor product line, including complex global field issues related to USB-C compatibility.
• Designed a USB-IF compliant circuit by resolving critical Slew Rate and Voltage Transient issues, selecting the Silergy SY9228 as the optimal solution.
• Optimized a DC-DC converter circuit (MPS MP4247) for a space-constrained design by increasing switching frequency to reduce ripple current, while mitigating the thermal trade-off with a custom heat dissipation solution.

[Project] Apple Collaboration Monitor Development (27MD5KL) | 2019

• Played a pivotal role in ensuring the product met Apple's famously stringent technical requirements, acting as a key engineer for the power and interface subsystems.
• Successfully debugged and tuned a Texas Instruments (TI) LED Driver IC to satisfy Apple's unique specifications for brightness control and system reliability.