Experience

Skyways

• Aviation & Aerospace
• 1 - 100 Employee

• Senior Electrical Engineer

  • Aug 2023 - Present



LG Electronics

• South Korea
• Computers and Electronics Manufacturing
• 700 & Above Employee

• Professional Researcher

  • May 2018 - Aug 2023

  - Designed and developed 4-legged robot like mini-cheetah robot from MIT lab by collaborating with Prof. Sangbae Kim of Biomimetic Robotics Lab at MIT - Designed and developed motor driver and power board of LG CLOI carrybot which is a delivery robot indoor and outdoor. It was introduced at 2022 CES - Designed and developed motor driver for a proprioceptive motor, it can operate a motor with 40kHz frequency and a phase current up to 80A with CAN FD interface - Designed and developed 2 axis motor driver which can drives up to 300W motors , this unit is actually used in commercially available LG CLOI delivery robot for restaurant - Designed and developed power module which has multiple DC-DC converters and load switches, this unit is actually used in commercially available LG CLOI delivery robot for restaurant - Designed and developed main system hardware module of human following intelligent cart - Designed and developed main system hardware module of LG CLOI wearable robot - Worked on analyzing different types of LIDAR’s for LG CLOI guide and delivery robots Show less



Olive Healthcare Inc.

• South Korea
• Health, Wellness & Fitness
• 1 - 100 Employee

• Director of R&D Center

  • Mar 2016 - Mar 2018

  - Designed lock-in-amplifier system board for detecting several nano watt light power - Worked on analyzing belly fat percentage using 8 discrete near- infrared wavelengths intensity detection - Designed digital temperature compensation circuit by controlling high voltage bias of avalanche photodiode (APD) - Designed charging, monitoring and protecting board for multi- cell lithium-ion batteries - Worked on the numerous experiments for testing temperature stabilities of prototype systems - Developed Bello(belly fat detector) which was presented at the CES show 2020 - Functional testing & design verification of the prototype - Experience of working to ISO13485 medical quality systems Show less



LG Electronics

• South Korea
• Computers and Electronics Manufacturing
• 700 & Above Employee

• Senior Research Engineer

  • Sep 2014 - Apr 2016

  - Improved the EMI/EMC performance of the prototype device - Specifying the customized vertical-cavity surface-emitting laser(VCSEL) chip for the tissue analyzing system - Designed battery charging module for the prototype system - Designed RF circuits for generating and detecting high frequency signals - Designed analog circuit for driving laser & LED using automatic power controlling - Designed IR-enhanced APD detection module - Improved the EMI/EMC performance of the prototype device - Specifying the customized vertical-cavity surface-emitting laser(VCSEL) chip for the tissue analyzing system - Designed battery charging module for the prototype system - Designed RF circuits for generating and detecting high frequency signals - Designed analog circuit for driving laser & LED using automatic power controlling - Designed IR-enhanced APD detection module



Beckman Laser Institute and Medical Clinic

• Irvine, California, United States

• Project Scientist

  • Jul 2012 - Jul 2014

  Improved the design, performance and efficiency of developed portable DOSI (Diffuse Optical Spectroscopic Imaging) system Improved the design, performance and efficiency of developed portable DOSI (Diffuse Optical Spectroscopic Imaging) system



Beckman Laser Institute and Medical Clinic

• Specialist

  • Jul 2007 - Dec 2010

  Specialist 1. Design and development of Mini-LBS(Laser Breast Scanner):non-invasive breast cancer detection system with broadband spectrometer 2. Helping shepherd other instrumentation from the research lab into the clinic. 3. Leading the research effort in developing the next generation optical technology for studying tissue physiology Specialist 1. Design and development of Mini-LBS(Laser Breast Scanner):non-invasive breast cancer detection system with broadband spectrometer 2. Helping shepherd other instrumentation from the research lab into the clinic. 3. Leading the research effort in developing the next generation optical technology for studying tissue physiology



University of California

• United States
• Higher Education
• 700 & Above Employee

• Graduate Research Assistant

  • Sep 2002 - May 2007

  Design and development of HBS(Handheld Breast Scanner): non-invasive breast cancer detection system using FDPM(Frequency Domain Photon Migration) Design: ADS etc. / Measurement: Network analyzer, Signal generator, Spectrum analyzer, Optical power meter, Photo detector Design and development of HBS(Handheld Breast Scanner): non-invasive breast cancer detection system using FDPM(Frequency Domain Photon Migration) Design: ADS etc. / Measurement: Network analyzer, Signal generator, Spectrum analyzer, Optical power meter, Photo detector



Microline Co.Ltd

• Research Engineer

  • May 2000 - Jun 2002

  Design and development of low phase noise PLDRO(Phase Locked Dielectric Resonator Oscillator) Design: ADS and Ansoft's Ensemble / Measurement: Spectrum analyzer, Network analyzer, Phase noise meter Design and development of X-band PLL(Phase Locked Loop) VCO Design: ADS and PSPICE / Measurement: Spectrum analyzer, Network analyzer System Design of Radar Detector Design: ADS Design and development of low phase noise PLDRO(Phase Locked Dielectric Resonator Oscillator) Design: ADS and Ansoft's Ensemble / Measurement: Spectrum analyzer, Network analyzer, Phase noise meter Design and development of X-band PLL(Phase Locked Loop) VCO Design: ADS and PSPICE / Measurement: Spectrum analyzer, Network analyzer System Design of Radar Detector Design: ADS



Sungkyunkwan University

• Construction
• 700 & Above Employee

• Research Engineer

  • Feb 1998 - Mar 2000

  Design and development of 26GHz PLDRO Design: ADS and PSPICE / Measurement: Network analyzer, Spectrum analyzer, Phase noise meter Design and development of 2.4GHz WLL(Wireless Local Loop) antenna with Hyundai Communication Design: Ansoft's Ensemble and HFSS / Measurement: Network analyzer, Anechoic chamber Participation in the project from ministry of information and communication Project: Dual Polarized Broadband Antenna for Base-Station Design: Ansoft's Ensemble and HFSS / Measurement: Network analyzer, Anechoic chamber SKILLS Simulation and layout: Circuit and EM simulator: Agilent's ADS, Ansoft's Ensemble and PSPICE Layout: Wavemaker, OrCAD layout Graphic Utilities: VISIO, Adobe Photoshop Measurement: RF-measurement: Network analyzer, Spectrum analyzer, Signal generator and LCR meter Optic-measurement: Power meter and Photo detector LF-measurement: Oscilloscope Antenna far-field measurement: Anechoic chamber Show less