aakash kamalapur
Graduate Student Research Assistant at University of Colorado Boulder
incoming phd candidate virginia tech 's center power electronics system ( cpes ) | graduate research assistant cu boulder 's colorado power electronics center ( copec )
working autodata 4 year sought cu boulder 's rigor advanced circuit analysis prof. maksimovic , joining prof. cvetkovic prof. boroyevich virginia tech 's center power electronics system ( cpes ) towards pursuing phd wide operating range control high wattage power density converter . skillset : power converter control design simulation : • researching source material advocating topology specific application . • simulating topology ’ open closed loop operation psim , matlab simulink zero-order-hold ( zoh ) , unit delay pwm , induced ground bounce step change load . • validating control law digital filter written embedded c tested psim deploying dsp . converter topology deployment : • developing driver solution igbts , employing vce saturation protection scheme using pulse transformer high slew rate op-amp ic fast gate turn-on turn-off time , without degrading integrity software deadband . • troubleshooting power device failure taking necessary action drive circuit along writing immediate stopgap dsp case component scarcity man-power absence . analog instrumentation embedded target : • developing instrumentation ac dc signal closing feedback control loop , comparator-based protection , dsp sampling , zero crossing technique grid synchronization . • prototyping common-ground galvanic isolation-based circuit trade-off response time signal quality , employing active filtering circuit isolation amplifier . • bare metal coding assembly instruction spi , i2c uart reading multiple digital input ( dis ) , energizing contactors disabling soft-start ( ) , storing time stamped alarm eeprom communication master control unit similar slave power module redundant n+1 parallel power supply system rtcs . • writing driver industrial communication protocol like modbus rtu rs485 line . also learning build modbus rtu modbus tcp-ip converter . dsp algorithm validation coding : • developing optimizing controller assembly language based forward , backward bilinear transformation analog compensators varied integrator saturation scheme . • writing floating point fir iir filter 32-bit dsps based bilinear transformation frequency warping analog filter filtering signal ground bounce noise sampled 2xfsw , ringing interval .
University of Colorado Boulder
https://www.linkedin.com/company/cuboulder
Graduate Student Research Assistant
Working with Prof. Dragan Maksimovic on:
1. Developing loss models in power converters which are fed to ML models.
2. Designing prototypes of converters with Si and GaN for corroborating solutions from closed-form loss expressions.
Boulder, Colorado, United States
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University of Colorado Boulder
https://www.linkedin.com/company/cuboulder
Graduate Student Teaching Assistant
ECEN 5007: Power electronics for electric drive vehicles (Instructor: Prof. Dragan Maksimovic) 

ECEN 4517/5517: Power electronics for PV lab (Instructor: Prof. Dragan Maksimovic)
Boulder, Colorado, United States
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University of Colorado Boulder
https://www.linkedin.com/company/cuboulder
Course Facilitator
ECEA 5715: Capstone design project in Power Electronics 

ECEA 5005: Open loop PV Power Electronics lab

Courses hosted by University of Colorado, Boulder on Coursera. Instructed by Prof. Robert Erickson and Prof. Dragan Maksimovic. 

My role is to hold office hours and answer queries with power stage simulation, control law design, power supply control modelling along with validating magnetics in simulations/hardware submitted by students
Boulder, Colorado, United States
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Cummins Inc.
https://www.linkedin.com/company/cummins-inc
Electronic Systems Intern
Power electronics and Control

1. Developed a first-pass DDSRF PLL for a 6.85kW 4-legged inverter (Application: Defense)
2. Developed first-pass controls for a 6.85kW 4-legged inverter under unbalanced load (Application: Defense)
3. Developed design procedure for coupled inductors of a 30kW 2-phase and 143kW 4-phase Interleaved Boost Converter (Application: Truck electric drivetrain)
Fridley, Minnesota, United States
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Autodata Tech
https://www.linkedin.com/company/auto-data
Product Development Engineer
Development engineer building control laws for high wattage power electronics, finding applications as DC-DC power supplies for manufacturing processes and AC-AC, AC-DC, DC-AC power quality improvement (FACTS).
Mumbai Area, India
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Technophilia
https://www.linkedin.com/company/technophilia
Student Brand Ambassador
A now defunct company, before the advent of Edtech firms, Technophilia Systems Pvt Ltd. catered to delivering high quality embedded systems knowledge to Indian undergrads from IITs, colleges affiliated with Anna university, VTU, University of Mumbai, VIT, Manipal Institute of Technology, PDPU. I worked as a student brand ambassador for the company during my junior and senior engineering of bachelor's, touring with instructors to different cities and delivering embedded systems knowledge to other students.
Mumbai Area, India
Power Electronics
MS in Electrical Engineering
University of Colorado Boulder
https://www.linkedin.com/school/cuboulder/
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Electrical and Electronics Engineering
Bachelor of Engineering (BE)
KLE Institute of Technology, HUBLI
https://www.linkedin.com/school/kle-institute-of-technology-hubli/
Completed my bachelors in electrical and electronics engineering standing with a rank of 9/73. Secured highest and awarded for the courses of Embedded C & 8051, Digital Signal Processing and Object Oriented Programming (OOP) in C++. My coursework also gave me an opportunity in presenting my senior design project, "Automated electric vehicle for the differently abled people", which was also nominated for funding from VGST, Karnataka (a Karnataka state government body).
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IIT integrated service
Aakash Digital
https://www.linkedin.com/school/aakash-digital/
12th
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10th CGPA: 9.8
High School Diploma
DAV Public School, Nerul
https://www.linkedin.com/school/dav-public-school-navi-mumbai/
9th through 11th
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AECS 1,2,3,4: 1st through 8th.
Atomic Energy Central School, Mumbai
https://www.linkedin.com/school/atomic-energy-central-school/
300 V/3500 A Rectifier for CED process
• Revised software for each power module by writing a PI control law with robust saturation wind-up for emulating the operation of adjust amplifier in UC3907 for low bandwidth load share.
• Analyzed the effects of removing DC-link caps for reducing ITHD% and passed on the information to the production team to update their BoM.
800 V/187.5 A Fast Electric Vehicle (EV) charger
• Developed a cascaded voltage and decoupled current controller in TMS320F28069 – TI’s piccolo line of DSP – for closed loop control of Active Front End (AFE) IGBT converter.
• Incorporated a discrete integrator in the code based on the bilinear transformation of an analog RC circuit for eliminating nuisance tripping during soft start.
415 V/600 A Rotor Resistance Starter
• Developed a thyristor-based switching algorithm for soft starting 3 phase induction motors operating under wide spectrum of the speed-torque characteristic of the motor.
• Successfully commissioned the product in a sugar manufacturing plant with bringing 12 more of orders of the same spec for other sugar processing plants in the country.
400 V/750 A Rectifier for Cathodic Electro Deposition (CED)
• Built the closed loop algorithm in DSP by emulating UC3907 IC’s operation for paralleling 10 SMPS modules to increase a paint-shop’s capacity from 12 JPH to 15 JPH (Jobs/Hour).
• Successfully commissioned the IGBT based power supply which allowed for significantly higher efficiencies (greater than 91% from 15% of load) and less than 1% current ripple.
3-phase 3-wire 60 A Active Harmonic Filter – AHF
• Wrote additional subroutines for APF to measure 5th to 49th harmonic amplitude and phase angle based on Clarke’s and Park’s transformation for individual and composite harmonic correction relative to client specs and our costing constraints.
• Successfully proved out capabilities of the algorithm in foundry, textile and automobile industries where the loads are entirely electric welders, VFDs and thyristorized drives.
Active Power Filter – APF
• Developed a MIMO control strategy in the DSP to shape AC grid
current and DC-link voltage of a 3-phase IGBT Bi-directional converter.
• Designed an algorithm to measure the reactive current component of load for injecting leading
or lagging profile of current into the grid for power factor correction at incomers.
600 V/800 A Variac controlled 6-pulse diode rectifier
• Developed an analog circuit for driving the motor of an autotransformer in either direction for
standalone voltage or current control loops.
• Built an analog PI on the logic board, for on-the-fly adjustment of control dynamics. Anyone
with an intuitive understanding of the process could tune the loops by adjusting these gains,
thereby freeing up our service team from on-site visits.
Simulation of controlling a Six Degrees of Freedom robotic manipulator
A Inverse Kinematics (IK) model was created from arm dimensions whose cartesian co-ordinate setpoints were passed into a gradient descent based optimization. This optimization algorithm returned the joint angles for all the six motors in the arm to reach a specific co-ordinate in the cartesian plane. Any trajectory in the cartesian plane was made possible, as long as the co-ordinate setpoint was within the reach of the arm.
Automated electric vehicle for the differently abled
Modelling and simulation of a PI controller for position control of a DC motor
Modelling and simulation of permanent magnet synchronous motors
https://sg.linkedin.com/in/sesha-sai-kumar-p-b361829b
Sesha Sai Kumar P
Research Engineer | Power Electronics | Rolls-Royce @NTU Corporate Lab|
Singapore
https://in.linkedin.com/in/dr-kumar-swamy-v-192b87a4
Dr. Kumar Swamy V.
Associate Professor at K.L.E.Instiute of Technology
Karnataka, India
https://www.linkedin.com/in/aiswarya-rachel-cherian
Aiswarya  Rachel Cherian
Power electronics graduate student from CU Boulder|Looking for full time oppurtunities
Boulder, CO
https://www.linkedin.com/in/aarohijaiswal
Aarohi Anil Jaiswal
Graduate Student at University of Colorado Boulder | Power Electronics | Analog IC design
Boulder, CO
https://www.linkedin.com/in/sandeshchitnis
Sandesh Chitnis
Hardware Engineer at Schweitzer Engineering Laboratories (SEL)
Pullman, WA
https://www.linkedin.com/in/kishor-gaikwad
Kishor Satish Gaikwad
Power Electronics Control Engineer at Lennox International
Carrollton, TX
https://www.linkedin.com/in/aroraabhilash
Abhilash Arora
Incoming Power Application Intern @ Wolfspeed | Research Assistant @ FREEDM| Electric Mobility| Power Electronics & Drives| Systems Engg | Ex-Mahindra
Raleigh, NC
https://www.linkedin.com/in/haris-bin-ashraf
Haris Bin Ashraf
Graduate Research Assistant - CPES Virginia Tech
Fairfax, VA
https://www.linkedin.com/in/akash-karmakar-805436bb
Akash Karmakar
Graduate Student at University of Colorado Boulder
Boulder, CO
https://www.linkedin.com/in/sai-kiran-voruganti-8b21a9121
Sai Kiran Voruganti
Power Electronics Engineer at Linear Labs Inc.
Dallas-Fort Worth Metroplex
https://www.linkedin.com/in/suma-jothibasu-47146a74
Suma Jothibasu
Engineer Scientist at Electric Power Research Institute (EPRI)
Austin, TX
https://www.linkedin.com/in/andrew-thibeault-21b087b0
Andrew Thibeault
Energy Engineering MS student at CU Boulder
Boulder, CO
https://www.linkedin.com/in/tom-blue-4ab408225
Tom Blue
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United States
https://www.linkedin.com/in/vinay-koneri-udaya-bhanu-10757114
Vinay Koneri Udaya Bhanu
Digital Design Engineer at Cirrus Logic
https://in.linkedin.com/in/rajaniupadhyay
Rajani Upadhyay
Project Engineer at Wipro, .Net Developer
Karnataka, India
https://www.linkedin.com/in/deans
Dean Stevens
Building products to make electric power safer, more reliable, and more economical.
Pullman, WA
https://in.linkedin.com/in/gayatri-kalmane-4b62761aa
Gayatri Kalmane
Student at KLE Institute of Technology, HUBLI
Hubli
https://www.linkedin.com/in/santhiyasampathkumar
Santhiya Sampath Kumar
Sr. CAD Engineer at Cypress Semiconductor Corporation | Miami University | PSG Tech
Lexington, KY
https://in.linkedin.com/in/rajeshyakkundimath
Dr. Rajesh Yakkundimath
Ph.D.(CSE)
Karnataka, India
https://in.linkedin.com/in/jinendra-bafna-b24575152
Jinendra Bafna
Student at KLE Institute of Technology, HUBLI
Karnataka, India
This video is pretty much one of the cleanest EV battery design briefing including all aspects from design, calculations, Thermal management and BMS…
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John Deere presents an Autonomous Battery Electric Tractor with 1 MWh battery capacity!Thanks to all working with me on this revolutionary project.…
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Liked by Aakash Kamalapur
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Electrical Motors and Generators
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CORPE (Center of Reliable Power Electronics)
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IEEE Power Electronics Society Young Professionals
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Digital Power Electronics Control
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APEC - Applied Power Electronics Conference
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Electrical Design Engineer Jobs
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Where analog and power electronics meet knowledge
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CU-Boulder Colorado Power Electronics Center (CoPEC)
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IEEE Power Electronics Society
https://www.linkedin.com/groups/2091456