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Stage-opdracht - HBO - Elektrotechniek (analoog, RF, telecom). Resonant Converter Control

ID de l'offre R0059766 Date de publication 02/08/2019 Lieu: Hengelo, Overijssel, Netherlands
Full time, Stage
In fast changing markets, customers worldwide rely on Thales. Thales is a business where brilliant people from all over the world come together to share ideas and inspire each other. In aerospace, transportation, defence, security and space, our achitects design innovative solutions that make our tomorrow's possible.

Soort opdracht: Internship assignment/Stage opdracht

Niveau: Bachelor (HBO)

Studierichting(en): Electronics (Analog, RF, telecom)

Titel van de opdracht: Resonant Converter Control

About us

With 80.000 talents working in 68 countries, we are one of the biggest high-tech employers in the field of safety and security. In the Netherlands, where 2000 employees are based, we are located in four cities: Huizen, Delft, Eindhoven and Hengelo (HQ). Together with an extensive ecosystem of knowledge partners, customers and suppliers, we work on radars for naval vessels, cyber security solutions, transportation systems, communication equipment for land forces, cryogenic cooling solutions, research & development for radar tech (in collaboration with TU Delft).

Thales Nederland BV (TNL) develops and produces radar systems. Within the Technical Unit RF radar front-ends are developed. This includes antennas, transmitters, signal generators and receivers and FPGA programming and embedded software. Besides product development, innovative technology studies are carried out in this field.

About the assignment

In legacy radar systems TWT transmitters are used for generating the RF transmit pulse. These TWT transmitters are supplied with high voltages, which are generated by multi kilowatt resonant dc/dc converters using thyristor switches. In order to control the output voltage and protect these thyristors switches, dedicated control modules (hybrid technology) were developed in the past. Since these control modules have become obsolete, a conversion to new technology is needed.

By creating a simulation model (LTspice) of a resonant converter with its thyristor switches and control loop, knowledge of the design and operation is gathered. An optimal solution (analogue or digital power) for the implementation shall be investigated for the form fit redesign of these modules. The solution is to build and needs to be verified in the targeted application.

Foreseen activities are:

  • Simulation of control loop with resonant converter,
  • Conversion of control modules to SMD technology using analogue functions and/or digital power
  • Design of a prototype control card.
  • Verification of the design on a test bench setup
  • Report the activities, design procedure and results in a detailed report.


Analogue electronics, power conversion

Thales offers…

  • An interesting internship or graduation assignment in an international high tech environment
  • An open and flexible working environment
  • An excellent internship allowance
  • Its own student association where you can participate in educational and fun activities.


Direct solliciteren? Gebruik dan je eigen, persoonlijke profiel om jouw interesse aan ons kenbaar te maken en kies voor ‘Apply now’.

Would you like to apply directly?  Then click on the button ‘Apply now’ to show your interest.
Please keep in mind that we can only consider students who are enrolled at a school during the whole internship period for our internships and graduation assignments.

At Thales we provide CAREERS and not only jobs. With Thales employing 80,000 employees in 68 countries our mobility policy enables thousands of employees each year to develop their careers at home and abroad, in their existing areas of expertise or by branching out into new fields. Together we believe that embracing flexibility is a smarter way of working. Great journeys start here, apply now!

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