ELECTRONIC BALLAST HAVING AN OSCILLATOR SHUTDOWN CIRCUIT FOR FLUORESCENT TUBES OR LAMPS - Patent 1050197

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EP 1 050 197 A1

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(43)	Date of publication:
	08.11.2000 Bulletin 2000/45

(21)	Application number: 97951039.3

(22)	Date of filing: 30.12.1997

(51)	International Patent Classification (IPC)⁷: H05B 41/29

(86)	International application number:
	PCT/CA9700/995

(87)	International publication number:
	WO 9935/892 (15.07.1999 Gazette 1999/28)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(71)	Applicant: So, Gin Pang
	Markham,Ontario L6C 1R3 (CA)

(72)	Inventor:
	So, Gin Pang Markham,Ontario L6C 1R3 (CA)

(74)	Representative: Geyer, Ulrich F., Dr. Dipl.-Phys.
	WAGNER & GEYER,Patentanwälte,Gewürzmühlstrasse 5 80538 München 80538 München (DE)

(54)	ELECTRONIC BALLAST HAVING AN OSCILLATOR SHUTDOWN CIRCUIT FOR FLUORESCENT TUBES OR LAMPS