Latest Space News
Fri, 26 Apr 2019 13:47:04 +0000
The nonprofit International Association for the Advancement of Space Safety (IAASS) issued a new report in March calling for the establishment of an independent Space Safety Institute to speed development of commercial space flight safety standards and certification processes. SpaceNews.com
Fri, 26 Apr 2019 13:08:28 +0000
New Chinese launch firm Space Transportation carried out a test April 22 in northwest China in cooperation with Xiamen University, launching a 3,700-kilogram technology demonstrator named Jiageng-1. SpaceNews.com
Fri, 26 Apr 2019 10:52:24 +0000
NASA will establish an independent committee to review its planetary protection policies to reflect new developments in human space exploration and commercial spaceflight. SpaceNews.com
Thu, 25 Apr 2019 22:02:07 +0000
As NASA studies ways to accelerate development of the Space Launch System, an independent safety panel called on the agency to retain a major upcoming test of the vehicle. SpaceNews.com
Thu, 25 Apr 2019 21:51:50 +0000
The United States should do more to protect its space systems and build capabilities as a form of deterrence, experts said. SpaceNews.com
Thu, 25 Apr 2019 17:41:03 +0000
U.K. Export Finance, an agency with a long-standing interest in supporting satellite projects but with little to show for it until now, has signed a $325 million loan with Turkey to support two satellites Airbus is building under a 2017 contract. SpaceNews.com
Thu, 25 Apr 2019 17:29:59 +0000
Members of an independent safety panel said it will take time to determine what happened during a SpaceX Crew Dragon testing incident several days ago, and that its impact to the overall commercial crew program remains uncertain. SpaceNews.com
Thu, 25 Apr 2019 16:29:18 +0000
DoD IG report says Musk told Shanahan that SpaceX did not win an Air Force launch service contract because it had written a poor proposal that “missed the mark.” SpaceNews.com
Thu, 25 Apr 2019 00:09:42 +0000
Nearly a year after Northrop Grumman’s acquisition of Orbital ATK closed, company executives say they’re getting the benefits they expected from the deal in terms of cost savings and new business. SpaceNews.com
Wed, 24 Apr 2019 21:26:12 +0000
Seven states have National Guard space units: Alaska, California, Colorado, Florida, New York, Arkansas and Ohio. SpaceNews.com
Wed, 24 Apr 2019 21:00:46 +0000
The Air Force 45th Space Wing is gearing up for three high-profile space launches at Cape Canaveral over the coming months. SpaceNews.com
Wed, 24 Apr 2019 18:57:50 +0000
The Justice Department has reached a settlement with the company that provided faulty components that led to the failure of back-to-back Taurus launches for NASA. SpaceNews.com
Wed, 24 Apr 2019 18:44:24 +0000
The reason for the Atlas 5 upper stage break up, believed to have occurred between March 23 and March 25, is not yet known. SpaceNews.com
Wed, 24 Apr 2019 03:16:54 +0000
As NASA works to develop a plan for an accelerated human return to the moon, a top White House official emphasized the need for long-term sustainability that will require both a Gateway and a lunar base. SpaceNews.com
Wed, 24 Apr 2019 00:14:56 +0000
Kitay: Actions in space “will directly affect the outcome of future conflicts or crises." SpaceNews.com
Tue, 23 Apr 2019 22:11:30 +0000
ÅAC Microtec subsidiary Clyde Space plans to build and begin operating in 2020 two cubesats equipped with Automatic Identification System (AIS) receivers for Orbcomm in a contract valued at 54 million Swedish Krona ($5.9 million). SpaceNews.com
Tue, 23 Apr 2019 21:20:10 +0000
Iridium CEO Matt Desch said April 23 the company expects to finalize a multi-year renewal of its Enhanced Mobile Satellite Services (EMSS) contract with the Defense Department in the next 30 days. SpaceNews.com
Tue, 23 Apr 2019 16:15:42 +0000
Chinese startup Linkspace succeeded with a vertical takeoff and landing test late last month on the same day fellow private launch firm OneSpace failed to reach orbit with its OS-m rocket. Also that week, two other Chinese companies declared success with engine tests as they push to develop new launch vehicles. SpaceNews.com
Tue, 23 Apr 2019 15:07:50 +0000
Polish space industry startup KP Labs has awarded an order to Scottish cubesat manufacturer Clyde Space which will act as a subcontractor for the company’s Intuition-1 project SpaceNews.com
More space news...
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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
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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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