(19)
(11) EP 0 777 872 A1

(12)

(43) Date of publication:
11.06.1997 Bulletin 1997/24

(21) Application number: 94926556.0

(22) Date of filing: 26.08.1994
(51) International Patent Classification (IPC): 
H05B 41/ 288( . )
H05B 41/ 292( . )
(86) International application number:
PCT/US1994/009467
(87) International publication number:
WO 1996/007130 (07.03.1996 Gazette 1996/11)
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI NL PT SE

(71) Applicants:
  • LED CORPORATION N.V.
    Philipsburg, St Maarten (AN)
  • Vila Masot, Oscar
    Miami FL 33133 (US)
  • MELIS, Janis
    Miami, FL 33126 (US)

(72) Inventors:
  • VILA MASOT, Oscar
    Miami, FL 33133 (US)
  • MELIS, Janis
    Miami, FL 33126 (US)

(74) Representative: Weatherald, Keith Baynes 
Castle International, Canterbury House, 2-6 Sydenham Road
Croydon, Surrey CR0 9XE
Croydon, Surrey CR0 9XE (GB)

   


(54) LOW FREQUENCY SQUARE WAVE ELECTRONIC BALLAST FOR GAS DISCHARGE DEVICES