Bianbian He
Power Electronics Engineer at Finally Light Bulb Company- Claim this Profile
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Bio
Experience
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Finally Light Bulb Company
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United States
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Computers and Electronics Manufacturing
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1 - 100 Employee
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Power Electronics Engineer
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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.
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University of Michigan
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United States
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Higher Education
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700 & Above Employee
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Switchable Gain Amplifier Design
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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
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Design Engineer - Solar Tracker Project
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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
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Independent Research, PCB Toroidal Transformer Design
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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
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Education
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University of Michigan,Ann Arbor
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Zhejiang University
Bachelor of Science (BS), Electrical and Electronics Engineering