Location History:
- Helsinki, FI (1994 - 2008)
- Helsiki, FI (2010)
- Kokemäki, FI (2010 - 2011)
Company Filing History:
13 out of 362 
8 out of 30 
1 out of 10 Years Active: 1994-2011
Title: Erkki Miettinen: Innovator in Inverter Technology
Introduction
Erkki Miettinen, an accomplished inventor based in Helsinki, Finland, holds an impressive portfolio of 23 patents. His work primarily focuses on innovative methods and devices related to inverter technology, aimed at enhancing efficiency and precision in electrical systems.
Latest Patents
Among Miettinen's latest patents is a groundbreaking method and arrangement for controlling an inverter equipped with a voltage intermediate circuit. This invention involves multiple sub-inverters (A, B, C) connected via specific cables to feed a common load. Each sub-inverter receives the same switch instruction pattern, which includes determining a time delay to ensure synchronized operation. Additionally, he patented a device designed to generate analog current or voltage signals, ensuring absolute values of output variables are continuously measured and regulated for accuracy. This device features a digitization process that distinguishes the difference between the desired and actual output signals, optimally controlled through a digital signal to minimize discrepancies.
Career Highlights
Erkki Miettinen has contributed to significant advancements in the field while working for notable companies such as ABB Oy and ABB Industry Oy. His role in these organizations has allowed him to develop and refine innovative solutions that have impacted the industry considerably.
Collaborations
Throughout his career, Miettinen has collaborated with esteemed professionals, including his coworker Matti Smalén. Their combined expertise has fostered a productive environment for innovation, leading to several successful projects and patents in the realm of inverter technology.
Conclusion
Erkki Miettinen stands out as a prominent inventor whose contributions to inverter technology demonstrate a commitment to innovation and excellence. With 23 patents to his name, his work will undoubtedly continue to influence and inspire advancements in the field for years to come.