Bernard D. H. Tellegen

Bernardus Dominicus Hubertus Tellegen (* June 24, 1900 in Winschoten; † August 30, 1990 in Eindhoven ) was a Dutch electrical engineer.

Life

Tellegen studied until 1923 at the Technical University of Delft. In 1924 he became a member of the Philips Natuurkundig laboratory.

Chantelle gene first studies focused on vacuum tubes, he was interested in the movement of electrons in triode and multi-grid tubes. This led him in 1926 to the invention of pentode he patented in several countries. In addition, he received in his life about 57 patents (alone or in cooperation with others).

In the following years he wrote several publications on electrical circuits.

In 1932 it was found that the radio programs of Radio Beromunster when they arrived in the Netherlands, also contained signals from Radio Luxembourg. First, a cross-talk has been suggested in the receiver tubes. Tellegen, however, managed to prove that this is a non- linear effect in the ionosphere - triggered by the very strong transmitter Luxembourg - acted ( Luxembourg effect).

In his further work on electrical networks he was interested in fundamental problems such as duality, geometric configurations, and in particular the synthesis of unresisting Four Poland. In his fundamental study of classical passive elements he came to the conclusion that a new element, the gyrator would complete the existing set. Tellegen also examined the properties of circuits with this component.

Published in 1952 Tellegen the Tellegen'sche theorem.

In the years 1946 to 1966 he was Associate Professor of circuit theory at the Technical University of Delft.

From 1942 to 1952 he was President of the Dutch electronica en Radio Genootschap (Netherlands Electronics and Radio Society), which then made ​​him an honorary member. From 1948 to 1960 he was Chairman of the Dutch Committee of the International Union of Radio Science ( URSI ), the Vice President, he was from 1952 to 1957. From 1957 to 1960 he was Deputy Chairman of the Commission.

Awards

  • Honorary member of the Dutch electronica en Radio Genootschap
  • Honorary Member of the Australian Institute of Radio Engineers Lifetime (1953 )
  • Science Prize of the Royal Dutch Institute of Engineers ( KIVI )
  • Fellow Award from the IEEE (1955 )
  • Edison Medal of the IEEE (1973 )
  • Dr. hc from the University of Delft (1970 )
Philips Natuurkundig Laboratorium Luxemburg–Gorky effect
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