Description:
Soft-magnetic components such as transformers and chokes are essential in automotive power-electronic converters such as chargers or DCDC-converters. They have a high impact on the overall device in terms of cost, size, and efficiency. To significantly improve these key components, Bosch research is looking for a PhD who can shape this exciting topic.

In current converter systems like automotive onboard Chargers (OBC) the magnetics in the power-range of 11-22kW are based on discrete wire-wound magnetics. Those wire-wound magnetics are either labor-intensive or require product specific production lines. Development trends towards planar magnetics are seen in academia for quite some time and recently gain momentum due to new semiconductor device technologies enabling higher frequencies. However, the major limitation of this planar approach is given by the losses in the PCB-winding and the magnetic core besides integration aspects like cooling. This design trade-off will be one of the major parts of this PhD thesis.

The main objective of the work will be the design of a 11kW charger with planar magnetics including the build-up and demonstration by an operational functional demonstrator. Beyond the general function, the main performance indicators will be a high efficiency and compact size. To reach that goal, new circuit topologies, magnetic design and integration approaches are required here, which will be the focus of the work.

Qualifications:
Education: Master degree with focus in Electrical Engineering or Physics with focus on Power Electronics and/or soft-magnetic components
Experience and Knowledge: first lab experience in electronics and good command of Matlab/Simulink as well as first experience with FEM tools for electromagnetics
Personality and Working Practice: autonomous, systematic, and proactive working style
Languages: good in German and English or willingness to learn German

The work takes place in the central research and advance development department of an industrial company. We ensure that 100% of your working time can be used for the PhD topics.

How to Apply:
Apply via the attached link;

Description:
Join the Bosch corporate research team to create new power electronics solutions through the introduction of new technologies, design approaches and power conversion concepts. Your innovative idea can make a difference in the next generation of power electronics products and help shaping the future of electromobility.
You create new high performance and highly compact dc-dc converters and battery chargers as part of a multidisciplinary project team and critically evaluate the impact of new technologies (e.g., SiC and GaN devices) and concepts on component as well as on product level.
You conduct in-depth research in several aspects of power electronics that may involve modelling, simulation, design and validation of power converters and their subcomponents, development of new converter topologies, magnetic component design concepts, modulation techniques and control strategies as well as testing and characterization of new concepts in lab environment.
You passionately push your ideas from concept to validation, strive for successful technology transfer to Bosch business units and support development engineers on the path towards industrialization by tackling concept related challenges.
You continuously follow the technology advances and research trends in your field of expertise and share those along with your innovative ideas with researchers at our corporate research organization and developers at Bosch business units.

Qualifications:
Education: PhD degree with focus on Power Electronics or Master degree with a minimum 5 years of relevant industrial/academic experience in the field of Power Electronics with responsibility for HW design for high-voltage converters
Experience and Knowledge: several years of work experience in the field of power electronics research, demonstrated innovation potential and problem-solving ability; good command of Matlab/Simulink, Plecs, Pspice/LTspice and at least one circuit design tool (Altium or similar); expert knowledge in minimum two of the following categories:
- converter topologies for switch-mode power supplies, isolated dc-dc converters and battery chargers,
- high-frequency isolated dc-dc converter design, build-up and testing,
- converter and associated circuit design experience with wide-band-gap semiconductors like GaN and SiC,
- high-frequency magnetic component design and modelling,
- dynamic modelling of converters with control design and implementation

Personality: team player, willing to learn, flexible and goal-oriented
Working Practice: well organized, self-starter, excellent communication skills and analytical think

How to Apply:
Please apply via the attached link

Description:
The successful candidate will be responsible for a major new project design or an existing product area.

Essential Job Functions (Roles and Responsibilities)
1. Designs new products and modifies existing designs to improve existing product performance or to generate (spin-off) products to meet new customer needs.
2. Performs engineering work in basic and applied research, development, and/or design of new products.
3. Analyzes designed equipment and conducts experimental tests to define operating limits.
4. Provides feedback for failure analysis, corrective action, and continued improvement activities.
5. Promotes technological innovation and focuses on technical pursuits of mutual interest to the company and the employee.
6. Serves as technical advisor and provides mentoring to other employees. May manage a small group of direct reports.
7. Provides technical, creative, and entrepreneurial support to the company's strategic planning and product development/marketing processes.

Qualifications:
Education: M.Sc. degree in Electrical Engineering is required (Ph.D. preferred).
Experience: Experience in the design of high power (>10kW), and high voltage (>1kV) power converters based on SiC devices.
Minimum of 15 years of professional experience in product design, including circuit modeling and simulation, and PCBA design
Experience as a lead design engineer on at least one product that was smoothly transferred to volume production.
Required Skills: Strong expertise in the design of power electronics systems, including electrical and thermal analysis, and the design of high-frequency magnetic components.
Solid understanding of physics and power electronics principles, including physics of high-power devices, power modules, inverters, converters, and related components
Experience with analog and digital control, and control simulation tools and techniques
Proficiency in circuit and layout design, and PCBA design software (Altium, PCAD)
Excellent analytical, problem-solving, and communication skills
Ability to work independently and collaborate effectively in a team environment.

How to Apply:
Apply directly to this link: https://www.ampt.com/careers/