Experience

Tula Technology Inc.

• Staff Electrical Engineer

  • Jun 2018 - Present

  • Simulation, Mathcad & Ansys efficiency modeling, Optimization among tradeoffs for On-Board Chargers, such as Dual Active Bridge, LLC resonant converter, and Totem-Pole PFC • Simulation, design & control for DC-AC inverter/AC-DC rectifier based on Vienna (T-NPC) converter • Motor control simulation for Field Oriented Control (FOC) based PMSM • Lithium-Ion battery SOC estimation optimization based on Extended Kalman Filter (EKF) • Magnetic component optimization… Show more • Simulation, Mathcad & Ansys efficiency modeling, Optimization among tradeoffs for On-Board Chargers, such as Dual Active Bridge, LLC resonant converter, and Totem-Pole PFC • Simulation, design & control for DC-AC inverter/AC-DC rectifier based on Vienna (T-NPC) converter • Motor control simulation for Field Oriented Control (FOC) based PMSM • Lithium-Ion battery SOC estimation optimization based on Extended Kalman Filter (EKF) • Magnetic component optimization to reduce parasitic parameters for EMI/ PCB layout optimizing based on HyperLynx/ Matlab unit test scripting for given JMAG-RT Model • 48V to 12V 100A charger design and embedded software design based on DSP controlled 3-phase multiphase buck converter • 96V/48V 60A dual-channel bidirectional analog dc-dc converter design. Show less • Simulation, Mathcad & Ansys efficiency modeling, Optimization among tradeoffs for On-Board Chargers, such as Dual Active Bridge, LLC resonant converter, and Totem-Pole PFC • Simulation, design & control for DC-AC inverter/AC-DC rectifier based on Vienna (T-NPC) converter • Motor control simulation for Field Oriented Control (FOC) based PMSM • Lithium-Ion battery SOC estimation optimization based on Extended Kalman Filter (EKF) • Magnetic component optimization… Show more • Simulation, Mathcad & Ansys efficiency modeling, Optimization among tradeoffs for On-Board Chargers, such as Dual Active Bridge, LLC resonant converter, and Totem-Pole PFC • Simulation, design & control for DC-AC inverter/AC-DC rectifier based on Vienna (T-NPC) converter • Motor control simulation for Field Oriented Control (FOC) based PMSM • Lithium-Ion battery SOC estimation optimization based on Extended Kalman Filter (EKF) • Magnetic component optimization to reduce parasitic parameters for EMI/ PCB layout optimizing based on HyperLynx/ Matlab unit test scripting for given JMAG-RT Model • 48V to 12V 100A charger design and embedded software design based on DSP controlled 3-phase multiphase buck converter • 96V/48V 60A dual-channel bidirectional analog dc-dc converter design. Show less



Schlumberger

• United States
• Oil and Gas
• 700 & Above Employee

• Senior Electrical Engineer

  • Dec 2014 - Jun 2018

  • Drive concurrent team such as eDFM and eDFT to design and deliver Flyback power supply, Linear Regulator, and CAN bus application for high-temperature down-hole tools up to 175C to pass High Temperature Operation (HTO), Accelerated Temperature Vibration Test (ATV), Hot Shock Test • Product reliability improvement and PCB size minimization for high temperature and high shock condition through topology, component, packaging method selection • Performance A in 2016, ranking top 1% in… Show more • Drive concurrent team such as eDFM and eDFT to design and deliver Flyback power supply, Linear Regulator, and CAN bus application for high-temperature down-hole tools up to 175C to pass High Temperature Operation (HTO), Accelerated Temperature Vibration Test (ATV), Hot Shock Test • Product reliability improvement and PCB size minimization for high temperature and high shock condition through topology, component, packaging method selection • Performance A in 2016, ranking top 1% in 100k schlumberger employees all over the world Show less • Drive concurrent team such as eDFM and eDFT to design and deliver Flyback power supply, Linear Regulator, and CAN bus application for high-temperature down-hole tools up to 175C to pass High Temperature Operation (HTO), Accelerated Temperature Vibration Test (ATV), Hot Shock Test • Product reliability improvement and PCB size minimization for high temperature and high shock condition through topology, component, packaging method selection • Performance A in 2016, ranking top 1% in… Show more • Drive concurrent team such as eDFM and eDFT to design and deliver Flyback power supply, Linear Regulator, and CAN bus application for high-temperature down-hole tools up to 175C to pass High Temperature Operation (HTO), Accelerated Temperature Vibration Test (ATV), Hot Shock Test • Product reliability improvement and PCB size minimization for high temperature and high shock condition through topology, component, packaging method selection • Performance A in 2016, ranking top 1% in 100k schlumberger employees all over the world Show less



Cirrus Logic

• United States
• Semiconductor Manufacturing
• 700 & Above Employee

• Application Engineer

  • Apr 2010 - Dec 2014

  • Boost, buck-boost converter, and flyback design using primary side control techniques that decrease the total BOM cost and PCB size in PFC and LED application (AC/DC) • Magnetics design & optimization to improve the efficiency, EMI, and decrease the total BOM cost • EMI debugging and improvement through PCB layout, component selection and placement, magnetic design, and control algorithm tuning • Safety test debugging, including ring wave, surge, and voltage withstand, thermal test • Boost, buck-boost converter, and flyback design using primary side control techniques that decrease the total BOM cost and PCB size in PFC and LED application (AC/DC) • Magnetics design & optimization to improve the efficiency, EMI, and decrease the total BOM cost • EMI debugging and improvement through PCB layout, component selection and placement, magnetic design, and control algorithm tuning • Safety test debugging, including ring wave, surge, and voltage withstand, thermal test



Tyco Electronics

• United Kingdom
• Business Consulting and Services

• Development Engineer

  • Sep 2008 - Apr 2010

  • Charging, discharging, protection power electronics circuitry design for Lithium Ion, LiFePO4 cells up to 15S1P • Thermal relief circuitry development using power-pump balancing techniques • Charging, discharging, protection power electronics circuitry design for Lithium Ion, LiFePO4 cells up to 15S1P • Thermal relief circuitry development using power-pump balancing techniques



China Electric Power Research Institute (CEPRI)

• China
• Research
• 1 - 100 Employee

• Electrical Engineer

  • Jul 2002 - Jul 2005

  • Researched & Designed an Energy Management Unit, a measurement and supervision product for power system. Embedded software and hardware design to integrate functions such as energy measurement, storage (I2C) and display, remote meter reading through mobile system, anti-theft and report, reactive power compensation, and power outage alarm • Researched & Designed an Energy Management Unit, a measurement and supervision product for power system. Embedded software and hardware design to integrate functions such as energy measurement, storage (I2C) and display, remote meter reading through mobile system, anti-theft and report, reactive power compensation, and power outage alarm