Berkeley Lab'sEngineeringDivision has an opening for a Power Electronics Engineer. You will be matrixed to the Advanced Light Source Upgrade Project (ALS-U) http://als.lbl.gov/als-u/overview. ALS-U includes a planned upgrade of the main electron particle accelerator complex of the Advanced Light Source (ALS) at Lawrence Berkeley National Lab that will provide revolutionary x-ray capabilities with hundreds of times brighter x-ray beams.
In this role, you will provide professional and high level engineering support to initiate the design, development, execution and implementation of power electronics for scientific instrumentation. You will design, develop, modify and evaluate electronic parts, components or other hardware systems. You will determine design approaches and parameters. You will analyze equipment, conduct experimental tests and evaluate results. You investigate the feasibility of applying scientific principles and concepts to potential inventions and products.
This position is for a degreed, power electronics or power supply engineer. Within the ALS-U team, the selected candidate will participate in the design, specification, procurement, testing, installation and maintenance of new DC power supplies used for an upgrade of the Advanced Light Source (ALS-U) an electron synchrotron particle accelerator used to produce X-rays for scientific purposes.
Power Electronics Engineer 2 Specific Responsibilities:
Under minimal guidance on routine work, detailed instruction on new assignments.
Collaborate across diverse technical fields (accelerator physics, magnet design, controls, facilities engineering) to develop specifications for high stability power supplies.
Develop circuit models to simulate power supply performance.
Design and maintain power supply test stands, and develop test procedures including tuning of PID control loops.
Work with technicians under minimal supervision to test power supplies for stability, reliability, and efficiency.
Participate in design reviews for the ALS-U and present periodic progress reports on the power supply effort.
Analyze power supply reliability and develop maintenance procedures based on MTBF for power electronics and associated hardware.
Troubleshooting of power electronics circuits, and occasional working with the Electronics Maintenance Technicians to diagnose and repair errant equipment.
Provide and maintain documentation of power electronics equipment.
In addition to the above, Power Electronics Engineer 3 Specific Responsibilities:
Independently performs routine duties, works under general direction on new assignments to:
Design of power supply cable plants, power distribution, cooling and controls systems (including safety interlocks and programming of PLCs) to integrate a large number of power supplies with other complex equipment.
Design of highly stable and reliable unipolar and bipolar power supplies.
Develop cost and schedule estimates for power electronics projects.
Additional Responsibilities as needed for the Power Electronics Engineer (Level 2 & 3):
Assist in the design of power supply cable plants, power distribution, cooling and controls systems (including safety interlocks and programming of PLCs) to integrate a large number of power supplies with other complex equipment.
Assist in the design of highly stable and reliable unipolar and bipolar power supplies.
Assist with developing cost and schedule estimates for power electronics projects.
Analysis, design and troubleshooting of pulsed power systems including those based on solid state and/or thyratron switching.
Perform analysis, design and troubleshooting of pulsed power systems including those based on solid state and/or thyratron switching.
Design of pulsed magnetics, including finite element analysis.
Participate in developing electrical safety procedures for high voltage, current and/or energy devices.
The individual may also occasionally be asked to participate operation, maintaining and upgrading existing DC ( tens of Watts to roughly 0.5 MW average) and pulsed power supplies at the ALS.
Power Electronics Engineer 2 Required Qualifications:
BSEE (MSEE preferred) with an emphasis on power electronics, power supplies or pulsed power.
Minimum of 2 years experience in power electronics, power supply or pulsed power R&D or design with demonstrated experience and proficiency with the following technical areas:
High voltage, high current and high frequency switch
Analog, logic and mixed signal circuit design, analysis and simulation using SPICE, Simplorer, Saber, or similar.
Characteristics of, and circuit design using power electronics devices including BJTs, MOSFETS and IGBTs.
Systems controls using PLCs, PXI or similar.
Integration of equipment into highly complex systems.
Single phase and polyphase AC circuits and power distribution.
Communication and control theory, and PID controllers.
Demonstrated ability to proactively develop and implement solutions to a variety of technical problems.
Demonstrated ability to make independent decisions, solve unique problems, and interact effectively within a diverse team.
Effective oral and written communications skills sufficient to document, present, and summarize results of research and development activities.
Proficiency in the use of standard Office produces such as Excel, Word, Power Point, Project.
Ability to work in a highly diverse setting.
Willing to occasionally work off usual shifts, and occasional foreign and domestic travel.
In addition to the above, Power Electronics Engineer 3 Required Qualifications:
Minimum of 5 years experience in power electronics, power supply or pulsed power R&D or design with demonstrated experience and proficiency and knowledge of electrical codes and electrical safety such as NEC, LOTO and NFPA 70E.
Additional Desired Qualifications Power Electronics Engineer (Level 2 & 3):
Electromagnetics design of inductors, high frequency transformers and high voltage/current/ frequency structures.
Electromagnetics analysis using FEA codes such as MAXWELL, OPERA or similar.
PCB layout and design.
Thermal analysis and design, and the use of FEA codes.
CAD tools such as AutoCad or solid modeling.
Familiarity with electrical codes and electrical safety such as NEC, LOTO and NFPA 70E.
Experience with vacuum tubes and thyratrons.
Demonstrated ability to enhance capabilities to a complex user facility, while minimizing operational impact.
The posting shall remain open until the position is filled.
This is a 2-year term appointment with the possibility of extension or conversion to Career appointment based upon satisfactory job performance, continuing availability of funds and ongoing operational needs.
Full-time, M-F, exempt (monthly paid) from overtime pay.
Salary is commensurate with experience.
This position may be subject to a background check. Any convictions will be evaluated to determine if they directly relate to the responsibilities and requirements of the position. Having a conviction history will not automatically disqualify an applicant from being considered for employment.
Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA.
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About Lawrence Berkeley National Laboratory
In the world of science, Lawrence Berkeley National Laboratory (Berkeley Lab) is synonymous with excellence. Thirteen scientists associated with Berkeley Lab have won the Nobel Prize. Fifty-seven Lab scientists are members of the National Academy of Sciences (NAS), one of the highest honors for a scientist in the United States. Thirteen of our scientists have won the National Medal of Science, our nation's highest award for lifetime achievement in fields of scientific research. Eighteen of our engineers have been elected to the National Academy of Engineering, and three of our scientists have been elected into the Institute of Medicine. In addition, Berkeley Lab has trained thousands of university science and engineering students who are advancing technological innovations across the nation and around the world. Berkeley Lab is a member of the national laboratory system supported by the U.S. Department of Energy through its Office of Science. It is managed by the University of California (UC) and is charged with conducting unclassified research across a wide range of scientific disciplines. Located on a 200-acre site in the hills above the UC Berkeley campus that offers spectacular... views of the San Francisco Bay, Berkeley Lab employs approximately 4,200 scientists, engineers, support staff and students. Its budget for 2011 is $735 million, with an additional $101 million in funding from the American Recovery and Reinvestment Act, for a total of $836 million. A recent study estimates the Laboratory's overall economic impact through direct, indirect and induced spending on the nine counties that make up the San Francisco Bay Area to be nearly $700 million annually. The Lab was also responsible for creating 5,600 jobs locally and 12,000 nationally. The overall economic impact on the national economy is estimated at $1.6 billion a year. Technologies developed at Berkeley Lab have generated billions of dollars in revenues, and thousands of jobs. Savings as a result of Berkeley Lab developments in lighting and windows, and other energy-efficient technologies, have also been in the billions of dollars. Berkeley Lab was founded in 1931 by Ernest Orlando Lawrence, a UC Berkeley physicist who won the 1939 Nobel Prize in physics for his invention of the cyclotron, a circular particle accelerator that opened the door to high-energy physics. It was Lawrence's belief that scientific research is best done through teams of individuals with different fields of expertise, working together. His teamwork concept is a Berkeley Lab legacy that continues today.