Power Electronics Engineer

SOWMYA AKELLA

******.******@*****.*** 626-***-**** 70 Lodato Ave San Mateo 94403

LinkedIn: https://www.linkedin.com/in/sowmya-akella-05567413/ PROFESSIONAL EXPERIENCE

Power Electronics Engineer Nov ’18 - present

Motiv Power Systems Foster City, CA

Design next generation DC-DC converters and controls.

Work on hardware system architecture for EVs. Circuits include isolators, ADCs, voltage and current sensors

Prepare schematics, review PCB layouts, debug test boards, analyze circuits with problems, perform HV testing

Integrate off-the shelf AC/DC vehicle chargers and gaining experience with DC fast chargers. Design Intern June ’18 - Nov ‘18

Analog Devices Milpitas, CA

Worked on the development of a new high voltage monolithic boost LED driver IC, derived from LT3922

Designed using BCD 0.35um process. Sub-circuits being designed were comparator, drive stage, peak current comparator, synchronous logic. Simulations were run in LTSpice

Performed literature survey of single string buck and boost LED driver and controller ICs in the market Hardware Engineer Jan ‘15 - April ‘16

Orvito Hyderabad, INDIA

Designed hardware for IoT consumer electronics products - all-in-one sensor, universal remote control

Responsible for HW architecture, schematics, component selection, BOM & printed circuit board (PCB) design

Designed schematics with 5V PMIC and DC/DC converter ICs

Familiar with using oscilloscopes, function generators, DMMs, network analyzers in the lab Design Engineer Apr - Nov ‘16, Jul ‘13 - Jan ‘15

Dakshesh Energy Hyderabad, INDIA

Designed MW scale grid tied solar power plants and off-grid kW scale plants with lead acid/Lithium ion battery backup

Designed electrical layouts for 11/33kV switchyards, sized cables and conductors, prepared BOM, interacted with vendors, carried out inspections. Installed and commissioned off-grid solar PV systems totaling 5kW Design Engineer June ‘11 - July ‘13

ABB Bangalore, INDIA

Designed and handled project management for a 33kV substation retrofit project in an Aluminum smelting plant Summer Intern Jun ‘17 – Aug ‘17

California Institute of Technology (Caltech), Amber Lab, Under Prof. Aaron Ames Pasadena, CA

Programmed TI’s TMS320x series DSP for doing Field Oriented Control(FOC) motor control on BLDC motors with quadrature encoder with external torque reference command. Academic Projects, CU Boulder

Project in Power Management IC design Jan ’18 – May ‘18

Designed and simulated integrated switched capacitor power converter in 45nm CMOS process. Converter input was 1.8V and output was 0.6-0.9V, 1A.

Project Lab in Power Electronics - Mentored by PE industry experts Bob White & Roger Bell Sept ‘17 – Dec ‘17

Built 24W LED driver with peak current control in flyback topology with a universal voltage/frequency input

Implemented external dimming circuitry, opto-coupler feedback, OV, UV and Over-Current protection

Simulated circuit in Simplis and designed the PCB in Altium Power Electronics and Photovoltaic Power Systems Laboratory Jan ’17 – May ‘17

Built off-grid sine wave solar inverter from 85W PV panel with energy storage in lead acid battery

Design included an efficient MPPT algorithm and closed loop PID control Principles of Embedded Software June ‘17 – Aug ‘17

Programmed a FRDMKL25Z microcontroller and used Direct Memory Access(DMA), Real Time clock, coded SPI and UART drivers

EDUCATION

Master of Science in Electrical Engineering with Power Electronics specialization University of Colorado Boulder, GPA – 3.7 / 4.0 Jan ‘17 – May ’18 Relevant Coursework: Modelling & control of Power Electronic Converters, Analog IC design, PMIC design, Resonant converters, AC drives, Principles of Embedded software

Bachelor of Technology in Electrical and Electronics Engineering National Institute of Technology Karnataka, Surathkal, India, GPA – 8.7 / 10.0 Jul ‘07 - May ‘11 TECHNICAL SKILLS

Programming - C, Matlab/Simulink

Software – Simplis, LTSpice, Cadence Virtuoso, Altium, MathCAD, Orcad, Git ACHIEVEMENTS

Recipient of $4k Gates fellowship Jan ’18 – May ‘18

Recipient of $250 fellowship from CU Admissions office for writing student blogs Jan ’17-May ‘17

Graduate TA: Circuits & Electronics for mechanical engineers Aug ’17 – Dec ‘17

Sold customized mural artwork (https://www.facebook.com/Patre-Artwork-965************/)

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