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Karol Franciszek Pollak (15 November 1859 – 17 December 1928) was a Polish electrotechnician, inventor and businessman. Early life. Karol Pollak was born in Sanok, Kingdom of Galicia and Lodomeria, part of the Austrian Empire. His father was Karol Pollak (1818–80), who was a printer, bookseller and publisher.
- Inventor, businessman
- Polish
- 17 December 1928 (aged 69), Bielsko-Biała, Poland
Diode bridge in various packages. Type. Semiconductor. Invented. Karol Pollak in 1895. Electronic symbol. 2 alternating-current (AC) inputs converted into 2 direct-current (DC) outputs. A hand-made diode bridge. The silver band on the diodes indicates the cathode side of the diode.
- Karol Pollak in 1895
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Also sometimes known by his name is the diode bridge rectifier circuit that was invented by Polish electrotechnician Karol Pollak in 1896 and that was independently invented and published by Leo Graetz in 1897. In 1880 he confirmed the Stefan–Boltzmann law. Graetz died in Munich at age 85. Publications
Karol Franciszek Pollak (ur. 15 listopada 1859 w Sanoku, zm. 17 grudnia 1928 w Białej [1]) – polski elektrotechnik, przedsiębiorca i wynalazca . Dzieciństwo i młodość. Był synem pochodzącego z Moraw oraz osiadłego w Sanoku drukarza, księgarza i wydawcy Karola Pollaka (1818–1880) [2] i Marii z domu Zaręba [3] wzgl. Zaremba (1833 [3] –1911) [4] [5].
Karol Pollak invented the diode bridge also known as the Graetz bridge or the bridge rectifier. An arrangement of diodes that permit current in only one direction converts alternating current into direct current. Graetz bridge. Leo Graetz popularized Pollak’s bridge and was German instead of Polish assuming that had anything to do with it ...
Karol Franciszek Pollak (15 de noviembre de 1859 - 17 de diciembre de 1928) fue un electrotécnico, inventor y empresario polaco. Vida temprana. Nació en Sanok, Reino de Galicia y Lodomeria, que formaba parte del Imperio Austriaco. Su padre era Karol Pollak (1818-80), que era impresor, librero y editor, muy conocido en Sanok.
Mar 26, 2021 · Karol Polák ml. sa narodil 29. marca 1964 v Bratislave. Ako píše portál omediach.sk, ešte ako chlapec hral v seriáloch Alžbetin dvor, Spadla z oblakov či Bakalári. Účinkoval vo filmoch ako Čierne diery či Láska sesterská. Pôsobil v divadlách v Prešove a v Nitre. Komentátor Polák zomrel v roku 2016 po dlhšej chorobe.
