Light, EVG and plasma technologies

Through our research and development, we want to relieve our environment by generating less CO₂ and increase our standard of living. By using our highly efficient and intelligent electronics, street lighting, for example, can become much more efficient and durable. We integrate digital technologies into our power supplies to solve complex tasks in a compact way.

Our environmentally friendly technologies are also used to convert new substances or efficient environmental processes (nitrogen to ammonia) with customized plasmas. To this end, we use new materials such as SiC for high-performance operating devices with high voltages and frequencies. For the energy transition, we strive for highest efficiencies.

The research focus is on:

• Plasma technologies:
  • Low and high pressure plams
  • DC, CCP, ICP, open plasmas (plasma torches)
  • High frequency and microwave plasma generators and matching networks
• Electronic control gear (ECG):
  • Front ends and power converters up to 500 kW
  • Qualification of power semiconductors (SiC and GaN) and development and qualification of new package concepts
  • Digital electronic ballasts
  • Failure investigations
• Environmental technologies:
  • Surface coatings for functional surfaces with nanostructures
  • Substance synthesis: e.g. nanoparticle generation or nitrogen synthesis for fertilizer production
  • Drinking water treatment: pesticide degradation and UV disinfection
  • UV polymerization
• VUV, UV, VIS and IR applications:
  • R&D of UV modules and reflectors
  • R&D of light sources (HAL, LED, CFL, FL, HID, LD, laser)
  • R&D of high pressure and low pressure radiation sources (excimer lamps, laser, LED, LD)
  • R&D of technical lights, street lights
• Sensor development for UV, VIS, IR as well as coating thickness and degree of polymerization measurements
• Absolute radiation measurement technology in the whole spectral range (VUV, UV, VIS, IRA, IRB and FIR)
• Development of Visible Light Communication (VLC) system with Gbit/s transmission rates

Radiation sources are operated with DC, RF and as ICP with 13.6 MHz as well as CCP with microwaves at 2.4 GHz. For this purpose, we research and develop the necessary operating devices. Depending on the application, these are electronic high-power ballasts or high-frequency inverters with SiC transistors, whereby powers of up to 500 kW can be provided.