Bianbian He

Power Electronics Engineer at Finally Light Bulb Company
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Contact Information
us****@****om
(386) 825-5501
Location
Ann Arbor, Michigan, United States, US

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Experience

    • United States
    • Computers and Electronics Manufacturing
    • 1 - 100 Employee
    • Power Electronics Engineer
      • Mar 2014 - Present

      •Design self-oscillation ballast for Induction lamp •Work on the dimming project of the lamp •Work closely with the product development team --On design improvement and cost reduction activities. --To assist with resolution of design issues as needed. •Design self-oscillation ballast for Induction lamp •Work on the dimming project of the lamp •Work closely with the product development team --On design improvement and cost reduction activities. --To assist with resolution of design issues as needed.

    • United States
    • Higher Education
    • 700 & Above Employee
    • Switchable Gain Amplifier Design
      • Oct 2013 - Oct 2013

      • Used CS Amplifier with diode-connected load topology to achieve switchable gain at two different modes • Implemented ± 10% gain variation over a range of ±30mV around the nominal input bias voltage and different Process/Temperature variation • Layout the amplifier • Used CS Amplifier with diode-connected load topology to achieve switchable gain at two different modes • Implemented ± 10% gain variation over a range of ±30mV around the nominal input bias voltage and different Process/Temperature variation • Layout the amplifier

    • Design Engineer - Solar Tracker Project
      • Jun 2013 - Aug 2013

      • Compiled C code within Arduino Platform to control the positions of two linear actuators and adjust the angle of solar tracker • Integrated DS1307 Real Time Clock chip to determine objective angles automatically • Implemented sync of two actuators and closed-loop control of Solar Tracker Positioning • Developed limit power protection subroutine that can monitor the power of solar panel by measuring the duty cycle of PWM Signal from Arduino Ethernet board • Compiled C code within Arduino Platform to control the positions of two linear actuators and adjust the angle of solar tracker • Integrated DS1307 Real Time Clock chip to determine objective angles automatically • Implemented sync of two actuators and closed-loop control of Solar Tracker Positioning • Developed limit power protection subroutine that can monitor the power of solar panel by measuring the duty cycle of PWM Signal from Arduino Ethernet board

    • Independent Research, PCB Toroidal Transformer Design
      • 2013 - Apr 2013

      • Modified the PCB air-core toroidal transformer structure used in a 13.56MHz high density dc-dc converter, which can cancel the parasite inductance of the MOSFET • Sketched 3D transformer models in Solidworks, conducted finite element analysis in COMSOL Multiphysics, and calculated the inductance and resistance parameters • Modified the PCB air-core toroidal transformer structure used in a 13.56MHz high density dc-dc converter, which can cancel the parasite inductance of the MOSFET • Sketched 3D transformer models in Solidworks, conducted finite element analysis in COMSOL Multiphysics, and calculated the inductance and resistance parameters

Education

  • University of Michigan,Ann Arbor
    2012 - 2014
  • Zhejiang University
    Bachelor of Science (BS), Electrical and Electronics Engineering
    2008 - 2012

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