Company Filing History:
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Years Active: 2001-2006
Title: Hendrik W J De Groot: Innovator in Power Supply Technology
Introduction
Hendrik W J De Groot is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of power supply technology, particularly in relation to liquid crystal displays. With a total of 2 patents, his work has had a meaningful impact on the industry.
Latest Patents
De Groot's latest patents include an "Inverter for Liquid Crystal Display" and a "Power Supply Arrangement Comprising Such an Inverter." The power supply arrangement is designed to supply power to multiple back and/or edge illumination devices in a liquid crystal display unit. It features a mains connection, a power converter, and at least one inverter. The power converter is responsible for converting an AC voltage input to a DC voltage output, while the inverter converts this output to a suitable DC voltage level for driving the illumination devices. This innovative design eliminates the need for a conventional adapter, allowing the LCD to connect directly to the mains, thus enhancing the efficiency of the power supply.
Another significant patent is the "Combination Equalizing Transformer and Ballast Choke." This ballast circuit includes an equalizer transformer that equalizes current between multiple lamps operated in parallel, combined on a single core with a choke. In a two-lamp setup, four windings are provided on one main core, with the first and second windings closely coupled to separate lamps. The third and fourth windings are loosely coupled and symmetrically arranged, allowing for flexible connections in the ballast circuit.
Career Highlights
Throughout his career, De Groot has worked with prominent companies such as U.S. Philips Corporation and Koninklijke Philips Corporation N.V. His experience in these organizations has contributed to his expertise in power supply technologies.
Collaborations
De Groot has collaborated with notable colleagues, including Petrus C J Laros and Thomas A J Haus. Their combined efforts have further advanced the innovations in the field of power supply systems.
Conclusion
Hendrik W J De Groot is a distinguished inventor whose work in power supply technology has led to significant advancements in liquid crystal display systems. His innovative patents reflect his commitment to improving efficiency and functionality in electronic devices.