Summary
- Profile Type
- Technology offer
- POD Reference
- TODE20230904018
- Term of Validity
- 4 September 2023 - 3 September 2025
- Company's Country
- Germany
- Type of partnership
- Commercial agreement with technical assistance
- Targeted Countries
- All countries
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General information
- Short Summary
- EMC interference can be avoided by a new active counter-interference signal method. The software-based system from a German university provides broadband and continuous interference suppression with active narrowband filters for high-frequency power electronics. A prototype is available. Partners are sought for licensing and refining the technology.
- Full Description
-
High-frequency circuits can cause electromagnetic emissions that impair other electronic systems. In power electronics, it is therefore often necessary to suppress EMC interference by such means as active narrowband filters.
An invention from a German technical university suppresses interference in power electronics with an active counter-interference concept. The interference-relevant frequencies are identified and corresponding counter-signals generated. The transmission function between counter-signal injection and measurement location for the interference or residual interference is taken into account. In ongoing operations, the counter-signal is continuously adjusted.
Frequency-dependent interference suppression is influenced by adaptation increment, secondary path estimate quality within the FxLMS algorithm, and the manner in which several adaptive notch filters are arranged. Pseudo-cascaded adaptive notch filters thus provide comparatively broadband interference suppression, allowing reduction not only of discrete harmonics, but also of relatively broadband interference signals.
More and more electrical systems involve DC voltage level adjustment or conversion between direct and alternating current. Circuits that reduce interference from these systems are thus gaining in importance. The invention essentially allows an FPGA to be implemented. It requires no large, passive components, so it is relatively low-cost and lightweight.
A prototype has been set up and measured in the laboratory, and function tests have confirmed that the invention is advantageous.
Industrial licensees are sought - Advantages and Innovations
-
• Adaptive counter-interference signals
• Very broadband solution for a wide frequency range
• More lightweight - Stage of Development
- Lab tested
- Sustainable Development Goals
- Goal 7: Affordable and Clean Energy
- IPR status
- IPR applied but not yet granted
- IPR notes
- Registration with the German Patent and Trade Mark Office and other subsequent international applications are possible in the priority year
Partner Sought
- Expected Role of a Partner
- The universityis offering interested companies the opportunity to license and refine the technology in collaboration with the inventors and the technical university.
- Type and Size of Partner
- Big company
- SME 50 - 249
- SME 11-49
- Type of partnership
- Commercial agreement with technical assistance
Dissemination
- Technology keywords
- 001001004 - Electronic engineering
- 01006002 - Broadband Technologies
- Market keywords
- 03001009 - Other electronics related (including keyboards)
- Targeted countries
- All countries
