Article View: sci.electronics
Article #3769Re: Fluorescent light ballasts
From: Henk Peek
Date: Sat, 18 Nov 1989 16:51
Date: Sat, 18 Nov 1989 16:51
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In article <3504@kitty.UUCP> larry@kitty.UUCP (Larry Lippman) writes: >In article <4995@ae.sei.cmu.edu>, rsd@sei.cmu.edu (Richard S D'Ippolito) writes: -> In article <22334@gryphon.COM> richard@gryphon.COM (Richard Sexton) writes: -> =There are two kinds of ballasts: magnetic and elecronic. The -> =former is by far the most common type, and is little more than -> =a transformer. > > The primary purpose of a ballast is for current limiting, and it >therefore functions as a saturable inductor and not a transformer. A ballast inductor operates always in the non sataurable mode. When the iron saturates the inductance of the inductor goes very fast down and the current goes up. Henk Peek Henkp@nikhef.nl
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arc1-ca.pugleaf.net!utzoo!yunexus!ists!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!snorkelwacker!bloom-beacon!eru!luth!sunic!mcsun!hp4nl!nikhefk!henkpReferences:
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Path: arc1-ca.pugleaf.net!utzoo!yunexus!ists!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!snorkelwacker!bloom-beacon!eru!luth!sunic!mcsun!hp4nl!nikhefk!henkp From: henkp@nikhefk.UUCP (Henk Peek) Newsgroups: sci.electronics Subject: Re: Fluorescent light ballasts Keywords: advance Message-ID: <596@nikhefk.UUCP> Date: 18 Nov 89 16:51:29 GMT Article-I.D.: nikhefk.596 References: <22334@gryphon.COM> <4995@ae.sei.cmu.edu> <3504@kitty.UUCP> Reply-To: henkp@nikhefk.UUCP (Henk Peek) Organization: Nikhef-K, Amsterdam (the Netherlands). Lines: 14