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Electrical design engineer with broad technical knowledge. Designs 'out of the box' solutions from application of first principals. Experienced in product development from conceptual design through production. Proven focus on continuous improvement, design reliability, innovation, and creativity. Passionate designer, committed to excellence. Specialties: Power electronics design engineering: analog controls, power magnetics, nonlinear magnetics, high voltage.
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Principal Hardware EngineerEnphase EnergyAustin, Tx, Us
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Sr. Manager Hardware Engineering At Enphase EnergyEnphase Energy Apr 2023 - PresentFremont, California, UsLeading a high performance new product development team of 8 engineers split between Austin and India providing mentorship, and task prioritizationManaging complex team design tasks through delegation, establishing a culture of trust, accountability, and leadership development of team membersFostering team collaboration through regular communication and utilization of asynchronous work management toolsMaintain motivation and morale by contributing a combination of expert technical guidance, passion for problem solving, compassionate leadership, and modelling personal regulation during times of stress.
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Principal Hardware EngineerEnphase Energy Aug 2021 - Mar 2023Fremont, California, Us
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CofounderPwrjoule Jul 2018 - PresentPower electronics design for renewable energy storage.
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Director Of Electrical EngineeringCe+T Energy Solutions Sep 2019 - Aug 2021
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Principal Hardware EngineerIdeal Power Inc. Mar 2017 - Sep 2019Austin, Texas, UsResponsible for hardware design improvements to correct and expand power converter performance. -
Director Of Hardware EngineeringIdeal Power Inc. Dec 2015 - Mar 2017Austin, Texas, UsLed hardware development team on new product development of a grid interactive, bidirectional 480 VAC 30 kW power converter.
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Electrical Engineering ManagerExcelitas Technologies - Hvp Apr 2013 - Nov 2015Pittsburgh, Pennsylvania, UsLed an engineering department team of 11 to 13 individuals consisting of electrical and mechanical engineers, CAD designers, and technicians. Established work priorities among various projects; tracked and reported project status to senior management. Assisted design engineers with various prototype issues to maintain forward progress in product development. Developed technical proposals for new projects including cost and schedule estimates. -
Sr. Project EngineerExcelitas Technologies - Hvp Jun 2003 - Mar 2013Pittsburgh, Pennsylvania, UsNew product R&D. Technical proposals. Project planning, management, and execution.Design and production support of custom power conversion products that meet semiconductor or medical industry compliance standards. AC to DC active power factor conversion, DC to DC converters, pulsed power. Expert in reliable, high power, high repeatability, multikilohertz pulsed resonant charger design.Design collaboration on power conversion products from 20 Watts to 75 kW; 24 Volts to 750 kV. Design collaboration on novel high repetition rate charging method for Marx banks.Developed original solutions for unique custom products: Single phase active power factor controller Pulsed power driver for a dielectric barrier discharge flash lamp. +/-25kV / +/-25 mA High voltage linear bipolar amplifier
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Sr. EngineerCymer, Inc. Jan 1998 - Apr 2003San Diego, Ca, UsPulsed power engineering department liaison member of new product platform development team for three generations of laser product development: ELS-6000, ELX-7000, and XLA-100. Design and specification of mechanical, control, and power interfaces of pulsed power modules to laser system platform. Specification, technical supplier management and commissioning of outsourced HVPS and resonant charger pulsed power modules. Troubleshooting support of production and R&D pulsed power systems for four generations of KrF and ArF excimer lasers; and for R&D support of the F2 laser and dense plasma focus Z-pinch EUV research efforts. -
Engineering InternSquare D Company 1995 - 1997UsColumbia, MO manufacturing plant.Maintenance of in-house tool metrology database, calibration of production and machinists tools. Periodic dimensional tolerance verification of production go-no-go and attribute gages using manual coordinate measurement machine.Trained in GD&T. Responsible for dimensional tolerance verification and GR&R (gage repeatability and reproducibility) qualification of new production gages.
David Johns Skills
David Johns Education Details
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University Of Missouri-ColumbiaElectrical Engineering -
Missouri University Of Science And TechnologyElectrical Engineering
Frequently Asked Questions about David Johns
What company does David Johns work for?
David Johns works for Enphase Energy
What is David Johns's role at the current company?
David Johns's current role is Principal Hardware Engineer.
What is David Johns's email address?
David Johns's email address is dj****@****ems.com
What schools did David Johns attend?
David Johns attended University Of Missouri-Columbia, Missouri University Of Science And Technology.
What skills is David Johns known for?
David Johns has skills like Systems Design, Optics, Hardware Architecture, Power, Engineering Management, Manufacturing Engineering, Systems Engineering, Analog Circuit Design, Root Cause Analysis, Power Supplies, Magnetics, High Voltage.
Who are David Johns's colleagues?
David Johns's colleagues are Victoria Udall, André Freitas Fernandes De Oliveira, Naveen Kumar, Abhishek Jain, Senthil Nathan, Clayton M., Hari S.
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