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The Vienna Rectifier is a pulse-width modulation rectifier, invented in 1993 by Johann W. Kolar at TU Wien, a public research university in Vienna, Austria. [1] [2]
Vienna rectifier; Voltage doubler; Voltage multiplier; W. Warsaw rectifier This page was last edited on 31 December 2018, at 21:33 (UTC). Text is available under ...
Rectifiers (1 C, 18 P) Pages in category "Power electronics" The following 41 pages are in this category, out of 41 total. ... Vienna rectifier; Voltage controller;
A rectifier used in high-voltage direct current (HVDC) power transmission systems and industrial processing between about 1909 to 1975 is a mercury-arc rectifier or mercury-arc valve. The device is enclosed in a bulbous glass vessel or large metal tub.
Vienna rectifier; W. Warsaw rectifier; Window detector This page was last edited on 22 December 2020, at 07:53 (UTC). Text is available under the Creative Commons ...
A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...
For a three-phase SMPS, the Vienna rectifier configuration may be used to substantially improve the power factor. SMPSs with passive PFC can achieve power factor of about 0.7–0.75, SMPSs with active PFC, up to 0.99 power factor, while a SMPS without any power factor correction have a power factor of only about 0.55–0.65. [26]
1874: Ferdinand Braun discovers the rectifier effect in metal sulfides and metal oxides. 1877: Thomas Edison (1847–1931) invents the first phonograph, using a tin foil cylinder. For the first time, sounds could be recorded and played. A phonograph horn with membrane and needle was arranged so that the needle had contact with the tin foil.