(19)
(11) EP 2 224 791 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.04.2011 Bulletin 2011/16

(43) Date of publication A2:
01.09.2010 Bulletin 2010/35

(21) Application number: 09180359.3

(22) Date of filing: 22.12.2009
(51) International Patent Classification (IPC): 
H05B 41/04(2006.01)
H02M 1/02(2006.01)
 H01J 7/32(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
AL BA RS

(30) Priority: 22.12.2008 IT PD20080375

(71) Applicant: Dossena S.n.c. di Barbati Agostino & C.
26824 Cavenago d'Adda, LODI (IT)

(72) Inventors:
  • Barbati, Agostino
    26824 Cavenago d'Adda, Lodi (IT)
  • Farfarini, Franco
    26824 Cavenago d'Adda, Lodi (IT)

(74) Representative: Mitola, Marco et al
Jacobacci & Partners S.p.A. Via Berchet 9
35131 Padova
35131 Padova (IT)

   


(54) Electronic power supply unit for a discharge lamp, lighting system and method of lighting a discharge lamp


(57) An electronic power supply unit (4)for discharge lamps, comprises an electronic power supply circuit (8) suitable to receive a mains voltage in input (Vcc) and to generate, on the two output terminals (18), a triggering voltage (Vimp) to trigger an associable discharge lamp (12). Advantageously, the power supply unit (4) sends the output terminals (18) two impulse voltages (± Vimp) of the same value and opposing polarities, so as to generate a total power supply voltage of double the value of the voltages (± Vimp) of the single output terminals (18) and suitable to trigger the lamp (12).







Search report