Christopher R. Ellis Email & Phone Number

Boston, Ma, Us

Charlestown, Ma, Us

Formerly Accion Systems.PALOMINO Program:• Ensured size weight and power of microelectronic circuits stayed within system budgets and ConOps.• Worked on wide range of power supply designs spanning 1.2V to 1.5kV and 10uA up to 20A.• Owned Electrical, firmware, and software requirements from stakeholders to verification and validation tests.• Developed PCBA bring up test plans and designed electrical ground support equipment for entire system.• Provided the electrical and software integrated test plans to ensure robust and comprehensive results.• Troubleshooted, debugged, and tested all electronics for EDU, ETU, and flight qualification hardware.• Managed contractors tasking, deliverables, and timelines to meet development and production schedule.• Managed the budget, risk, and schedule of the entire electrical design within the satellite propulsion system.LAT Program:• Served as lead electrical engineer for all designs, reviews, and tests within the company.• Designed hardware architecture for a thrust control system that enabled 10x power of previous HV system.• Created schematics, wiring diagrams, cable designs, & assembly instructions for 3U server rack power modules.• Reviewed team member documents such as schematics, Gerber files, CAD drawings, simulations, and reports. • Performed all PCBA acceptance testing, system integration, and initial hardware bring up testing for 3U units.• Designed modular satellite power bus and HV supply designs that enabled scalable ion propulsion systems.• Invented method to balance multiple HV power supply currents and returns to mitigate spacecraft charging.TILE 4 Program

Melrose, Ma, Us

Currently focused on educational videos and content on Youtube.Shattering the notion that process stifles innovation. Crellis’ mission is to bring more efficient and effective processes to startups so they can focus on developing innovations.Process improvements are about saving the engineers time and company money. When people think process engineering they imagine large cooperations with year long development and review cycles. Engineers often feel the majority of their time is spent writing a report or creating auxiliary documentary for cross functional reviews. Distracting from the core technology they are developing.For startups, process improvement could be as simple as reviewer roles or design validation. It’s important to fit the process to the company size and industry.

• Served as lead electrical engineer for all designs, reviews, and tests within the company.• Designed hardware architecture for a thrust control system that enabled 10x power of previous HV system.• Created schematics, wiring diagrams, cable designs, & assembly instructions for 3U server rack power modules.• Reviewed team member documents such as schematics, Gerber files, CAD drawings, simulations, and reports. • Performed all PCBA acceptance testing, system integration, and initial hardware bring up testing for 3U units.• Designed modular satellite power bus and HV supply designs that enabled scalable ion propulsion systems.• Invented method to balance multiple HV power supply currents and returns to mitigate spacecraft charging.• Led team of 6 engineers and collaborated with cross functional team on next generation TILE thruster designs. • Reduced design friction by creating and implementing PCBA design, development, and review processes.• Managed projects by generating and tracking budgets, KPIs, and Gantt charts with MS Projects and JIRA.• Developed requirements, systems architecture, schematics, and PCBAs for prototyping new electronics designs.• Facilitated requirements and design feedback through weekly meetings with stakeholders and engineers. • Supported systems on orbit with root cause analysis efforts that led to enhanced reliability of thruster designs.• Used Altium, LT-Spice, Ki-CAD, Omnify, and Arena for schematic capture, modeling, and part check in/out.• Design, built, and tested a two stage DC-DC converter, capable of dual polarity outputs, up to 40W and 2000V.

Somerville, Massachusetts, Us

SparkCharge makes portable, modular, ultra fast charging units for electric vehicles that go in the trunk of your electric vehicle. Our units allow EV owners to charge their car anytime and anywhere they want, at fast speed, without being connected to the grid.• Led cross-functional engineering team to develop the world’s first mobile, modular, electric vehicle charger.• Created roadmap and strategy for portable EV charging technology from initial concept through 3 product lines.• Enabled growth by mentoring and scaling engineering team from an initial team of 2 up 11 engineers.• Distributed tasks and requirements through blended Agile and waterfall workflows and backlog grooming.• Streamlined hardware development by implementing efficient design, review, and test process and procedures.• Oversaw project management timelines, budgets, prototyping, manufacturing, and production COGS.• Worked with vendors for pilot programs, contract manufacturing, supply chain, and component acquisition.• Created modular hardware architecture allowing 7kW to 50kW EV charging & 2kWh to 17.5kWh energy storage.• Design, built, and tested several single and multiphase DC-DC converter topologies up to 20kW.• Design, built, and tested a 3.5kWh lithium-ion battery pack with custom 32S BMS designed to UL1642 standards.• Regulatory experience includes designing to UL & AEC Q100 standards compliance certification test campaigns.• Used PSIM, P-Spice, and MATLAB to simulate and model topologies, sensor circuits, and control algorithms.• Design circuits for isolated and non-isolated motor and relay control, converter feedback, and SiC switching.• Developed communication protocols for internal battery and charger using I2C, SPI, and CAN Bus 2.0B structure.Techstars Alumni (Boston 2018)43North $1MM Grand Prize Winner 2018Solidworks World 2019 Pitch Grand Prize WinnerMember: Greentown Labs (Largest Clean Tech Incubator in U.S.A.), 3D Experience Lab (Powered by Dassault Systemes)

Bethesda, Md, Us

Held Secret Clearance.• Worked as a power systems engineer to assist production of ground-based radar systems.• Designed cables, sized generators, and assisted with all AC voltage related tasks and equipment.• Participated and led design reviews, managed ECOs, and debugged field issues.• Performed research into upgrading, renovating, and correcting issues with legacy equipment.

La Jolla, Ca, Us

Lab TA for high voltage power systems courses at UC San Diego.Introduction to Power SystemsEnergy ConversionPower Electronics IPower Electronics II

California, Us

Worked with a team of multidisciplinary engineering students to design a cube satellite (CubeSat) that serves as a communications relay for a Lunar lander as well as a test bed for our compact power systems and monopropellant additively manufactured thruster.Primary responsibilities:• Create and manage systems documentation for the entire cube satellite• Design the Satellite's Power system• Ensure that all electrical power components will function in the vacuum of space• Maximize thermodynamics with optimal component layout and heat-sink designComponents incorporated in the power system design:• Solar Panels• Batteries• Buck-Boost converters• MPPT Battery charge/discharge controllers• Latching Current Limiters• Lithium Ion battery cells and protection circuitry

London, London, Gb

Working with Coordinated Electric System Impact Review (CESIR) Studies for photo-voltaic (PV) and other distributed generation (DG) interconnections. The role utilizes programs such as Cascade, FeedPro, GIS, PowerPlant, CYME and Aspen to perform feasibility and system impact studies in accordance with NERC, NPCC, and NYSSIR.

London, London, Gb

• Internship with National Grid's Substation Engineering & Design group as a substation engineering intern.• Wrote technical documents for various stages of substation engineering projects.• Sized equipment and made recommendations for damage/failure assessment and upgrade specifications.My major project was to design a 345 kV interconnection station. I was the project technical lead and worked with a team of electrical, mechanical, and civil engineers. The station utilized a 3 breaker ring bus network to ensure reliability and expandability of the station. The station follows all IEEE and ANSI standards as well as follows the regulations set forth by FERC, NERC, NPCC, and NYISO.

San Diego, California, Us

• Manage fellow students working in General Merchandise.• Complete daily tasks assigned to student lead.• Process special orders and product transfer requests.

San Diego, California, Us

Assist various departments with merchandising and customer service.

San Diego, Ca, Us

• Developed materials for a professional development course taught to community college professors.• Further developed materials for an Arduino course taught to Community College Students.• Trained community college professors as a teaching assistant for the professional development course.

London, London, Gb

• Internship with National Grid's Substation Engineering & Design group as a Drafting Technician.• Worked directly with designers on planning, construction issues, and as-builts.• Revised existing drawings, maps and tracings in accordance with sketches or corrected prints.• Program experience includes Bentley's Microstation, SAP, and Documentum.

Syracuse, Ny, Us

• Tutor students in electrical circuits, digital circuits, digital logic design, and microprocessors.

Syracuse, Ny, Us

• Assisted students with proper use of an Oscilloscope, Ammeter, Multimeter, DC Power Supply, Function Generator, and breadboards.• Graded homework and lab reports.

Mooresville, Nc, Us

• Advise customers of proper use of electrical equipment and products.• Ensure that customers are aware of the dangers and importance of proper safety precautions to take when completing electrical projects.

Mooresville, Nc, Us

• Advise customers of proper use of electrical equipment and products.• Ensure that customers are aware of the dangers and importance of proper safety precautions to take when completing electrical projects.

London, London, Gb

• Internship with National Grid's Substation Engineering & Design group as a Drafting Technician.• Worked directly with designers on planning, construction issues, and as-builts.• Revised existing drawings, maps and tracings in accordance with sketches or corrected prints.• Program experience includes Bentley's Microstation, SAP, and Documentum.

• Home theater consulting and installation.• Advised clients on the best home theater solutions for their budget and space available.• Installed home theater systems for 3 years both prior to and including my company.

Bachelor Of Science (B.S.), Electrical Engineering

Associate Of Applied Science (A.A.S.), Electrical Engineering Technology

Associate Of Science (A.S.), Engineering Science

High School Diploma