Latest Space News
Tue, 17 Jul 2018 00:28:34 +0000
Maxar Technologies on July 16 purchased Neptec, a Canadian company with robotic expertise deemed useful for in-space activities like satellite servicing and building space stations. SpaceNews.com
Mon, 16 Jul 2018 19:27:06 +0000
A solid rocket booster designed for both the Ariane 6 and Vega C next-generation launchers completed a successful test firing Monday, clearing a hurdle for the maiden flights of both vehicles. SpaceNews.com
Mon, 16 Jul 2018 17:58:13 +0000
Ken Gabriel, CEO of Draper Labs: The idea of small satellites making up large constellations is a “powerful shift." SpaceNews.com
Mon, 16 Jul 2018 16:54:04 +0000
Virgin Orbit says an agreement that could lead to LauncherOne missions from an English airport is part of an effort to both better meet the needs of its customers as well as support the U.K. space industry. SpaceNews.com
Mon, 16 Jul 2018 13:03:49 +0000
With the announcement that Scotland will be home to Britain's first spaceport, the U.K. is on the road to offering a one-stop-shop for building, operating and now launching satellites. SpaceNews.com
Mon, 16 Jul 2018 09:14:34 +0000
The British government announced July 16 that it will provide funding to two companies, including an American aerospace giant, who plan to use a newly announced launch site in Scotland. SpaceNews.com
Sun, 15 Jul 2018 21:58:30 +0000
After years of study and consideration, the British government announced July 15 that it will start development of a new spaceport in northern Scotland, while an English airport signed a deal that could also lead to launches from its facility. SpaceNews.com
Sun, 15 Jul 2018 19:39:31 +0000
The space market worldwide has averaged $269 billion over the past five years, growing more than 5 percent each year. SpaceNews.com
Sun, 15 Jul 2018 08:03:46 +0000
The military wants to apply quantum computing to secure communications and inertial navigation in GPS denied environments. SpaceNews.com
Fri, 13 Jul 2018 20:43:08 +0000
On his first foreign trip since taking office nearly three months ago, NASA Administrator Jim Bridenstine traveled to Israel this week to meet with the country’s prime minister and other officials. SpaceNews.com
Fri, 13 Jul 2018 19:21:26 +0000
Gogo, an inflight connectivity provider leasing capacity on dozens of satellites, bulldozed its old business plan July 13 amid looming concerns over unprofitability, encroaching debt deadlines, and a potential buyout. SpaceNews.com
Thu, 12 Jul 2018 21:57:26 +0000
The White House nominated a veteran Senate aide with little space experience to be NASA’s deputy administrator July 12, a month after the agency’s administrator said he wanted someone with technical expertise for the job. SpaceNews.com
Thu, 12 Jul 2018 19:00:17 +0000
Blue Origin will begin flying two customers on the same New Glenn rocket after the launch vehicle has performed five missions with solo customers, according to Ted McFarland, Blue Origin’s commercial director of Asia-Pacific business. SpaceNews.com
Thu, 12 Jul 2018 18:42:28 +0000
“We are going to need a bigger boat,” FCC Chairman Ajit Pai said July 12, quoting the 1975 movie Jaws as a metaphor for the challenge of handling 5G needs. “Or in our case, more spectrum.” SpaceNews.com
Wed, 11 Jul 2018 22:15:26 +0000
China’s state-owned fleet operator is making forward-leaning investments in high-throughput satellites and low-Earth-orbit constellations without worrying, at least initially, about whether these projects are backed by sound business plans. SpaceNews.com
Wed, 11 Jul 2018 20:54:55 +0000
Amid growing concerns about commercial crew delays, a GAO report recommended NASA share more schedule information with Congress and develop contingency plans to maintain access to the International Space Station. SpaceNews.com
Wed, 11 Jul 2018 20:27:30 +0000
Using free data from the European Space Agency, a startup in Finland created a geospatial information service that is entirely enabled by artificial intelligence. SpaceNews.com
Wed, 11 Jul 2018 17:42:16 +0000
U.S. aerospace and defense in 2017 posted a positive trade balance. But there are concerns that escalating trade wars could hurt future growth. SpaceNews.com
Wed, 11 Jul 2018 14:00:10 +0000
A Silicon Valley startup developing electric propulsion systems for satellites has raised $10 million and added the billionaire founder of LinkedIn to its board. SpaceNews.com
Wed, 11 Jul 2018 13:46:27 +0000
Intelsat-901, a 17-year-old communications satellite running low on propellant, is awaiting a first-of-its-kind service call from a robotic spacecraft carrying a fresh tank of fuel. SpaceNews.com
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  • CV: Post doctoral fellow - Power electronics

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    Personal information
     Name:<withheld>
     Age:<withheld>
     Country:<withheld>
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    Contact information
     Email:<withheld>
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    Candidate Profile
     Date Submitted:23-03-2015
     Last Modified:23-03-2015 (04:24)
    Job information
     Current job:Post doctoral fellow - Power electronics
     Employment Term:Temp/Contract
     Job location:Anywhere
     Date available:within 3months
     Industry:
     KeywordsPower electronics, SMPS, wide band gap devices, power managment, converter design,
    CV

    EDUCATION

                    2011-2014        Ph.D in power electronic: G2Elab/Thales, Grenoble, France

    Thesis title: High frequency DC-DC converter using GaN devices.

     

                    2007-2010        ENGINEERING SCHOOL: ENSE3, GRENOBLE, FRANCE

    Electrical engineering degree with a specialization in power electronic.

     

    EXPERIENCES

                    2014-2015        Postdoctoral fellow, G2Elab, France

    ·      Design of 600V switching mode power supply (SMPS) using GaN devices, for motor control.

    ·      Computation of stray parasitic elements to improve dynamic performances.

    ·      Study of different gate driver topologies to work at high temperature.

    ·      EMC optimization

    ·      PCB design

    ·      Tests and measures

    ·      Team leader in the Little Box Challenge (LBC).  High power density, single phase 2kVA inverter.

    ·      Optimization of every aspect of the inverter: Control, gate driver, layout, EMC, filters, power topology, packaging, thermal aspects…

    ·      Multi-level topology

    ·      Active filter

    ·      GaN FET

     

                    2011-2014        Ph.D student, G2Elab/Thales, France

    ·      Realization of a 100W 1.4MHz insulated DC/DC converter achieving 92% efficiency.

    ·      Analysis of insulated DC/DC converter topology like DAB.

    ·      Use of MOSFETs and wide band gap devices for high frequencies (GaN devices).

    ·      PCB design using Altium. Reduction of parasitic elements to prevent EMC issues. SMD and through hole devices on PCB or IMS substrate.

    ·      Hardware construction. Electronic hardware design.

    ·      Parasitic elements computation using InCa3D.  Design of inductances using PCB tracks.

    ·      Design of different insulated gate driver topologies. Realization of an IC to improve commutation of wide band gap devices.

    ·      Simulation of power electronic circuits (SMPS) using SPICE-like tools.

    ·      Loss computation in switches and magnetic elements using Mathcad.

    ·      Design of magnetic components.

    ·      Analogue and digital controllers.

    ·      Measures, test and debug of switch mode power supply.

     

    2010                    research internship, CEA-INES, Bourget du lac, France (6months)

    ·         Study of the impact of soiling on photovoltaic panel efficiency.

    ·         Spectral responsivity analysis.

    ·         Spectrometry.

     

    2009                    Internship, Expert solaire, Poisat, France (3months)

    ·         Design of solar PV array systems on roofs using PVsyst.

    ·         Evaluation of shadings.

    ·         3D modelling of the building and its PV system.

     

    PUBLICATIONS

    insulated gate driver for eGaN fets

    Delaine, Johan ; Jeannin, Pierre-Olivier ; Frey, David ; Guepratte, Kevin

    Energy Conversion Congress and Exposition (ECCE), 2014

     

    Improvement of GaN transistors working conditions to increase efficiency Of A 100W DC-DC converter

    Delaine, Johan ; Jeannin, Pierre-Olivier ; Frey, David ; Guepratte, Kevin

    Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Seventh Annual IEEE

     

    High frequency DC-DC converter using GaN device

    Delaine, Johan ; Jeannin, Pierre-Olivier ; Frey, David ; Guepratte, Kevin

    Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE

     

    LANGUAGES

    French: native language.

    English: Fluent.

     

    HOBBIES

    Traveling, hand ball (captain and coach), riding motorcycle, growing bonsai and playing guitar and drums.


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