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Machine translation
1. (WO2005062683) APPARATUS AND METHOD FOR CONTROLLING DISCHARGE LIGHTS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/062683    International Application No.:    PCT/GB2004/005413
Publication Date: 07.07.2005 International Filing Date: 24.12.2004
IPC:
H05B 41/38 (2006.01)
Applicants: POWELL, David, John [GB/GB]; (GB)
Inventors: POWELL, David, John; (GB)
Agent: HACKNEY, Nigel; Mewburn Ellis LLP, York House, 23 Kingsway, London Greater London WC2B 6HP (GB)
Priority Data:
0330019.1 24.12.2003 GB
Title (EN) APPARATUS AND METHOD FOR CONTROLLING DISCHARGE LIGHTS
(FR) DISPOSITIF ET PROCEDE DE COMMANDE DE LAMPES A DECHARGE
Abstract: front page image
(EN)Apparatus and method for supplying AC power (e.g. from an inverter) to a discharge light via a ballast circuit formed by a resonant circuit, and controlling the frequency of the AC power signal so as to operate below the natural resonance frequency of the ballast circuit in use after the discharge light has 'struck'.
(FR)L'invention concerne un procédé et un dispositif servant à alimenter une lampe à décharge en courant alternatif (par ex. par un inverseur) via un circuit ballast formé par un circuit résonant, et à réguler la fréquence du signal c.a. en vue d'un fonctionnement en-dessous de la fréquence de résonance naturelle du circuit de ballast utilisé lorsque la lampe à décharge est 'pleine'.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)