Electric lamp and discharge devices: systems – Regulation of the control current and/or potential applied...
Patent
1994-08-03
1996-09-17
Pascal, Robert
Electric lamp and discharge devices: systems
Regulation of the control current and/or potential applied...
315DIG4, 315224, 315307, 315205, H05B 3702
Patent
active
055571743
ABSTRACT:
An electronic ballast (2) which includes an electronic harmonics filter (7), the brightness of a lamp (38) can be determined by employment of a dimmer (1) provided in the mains feed, in that a desired value signal (UM) for setting the frequency (f) of the switch (S) is supplied to the controller (8), which desired value signal depends upon the input or output voltage of a rectifier (4) connected downstream of the dimmer (1), in particular dependent upon the curve form of this voltage.
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patent: 4604552 (1986-08-01), Alley et al.
patent: 4914355 (1990-04-01), Mertens et al.
patent: 5049790 (1991-09-01), Herfurth et al.
patent: 5066894 (1991-11-01), Klier
C. H. Sturm and E. Klein, "Betriebsgerate und Schaltungen fur elektrische Lampen", pp. 127-128, 6th Edition, 1992 Siemens AG.
U. Tietze and Ch. Schenk, "Halbleiter-Schaltungstechnik", pp. 563-570 Springer 9th Edition.
Klaus Beut, "Bauelemente der Elektronik, Electronik 2", p. 242, Vogel Verlag, 1975.
Kinkead Arnold
Pascal Robert
Tridonic Bauelemente GmbH
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