EP 2067235 A4 20100310 - POWER SUPPLY AND ELECTRONIC BALLAST WITH AUXILIARY PROTECTION CIRCUIT
Title (en)
POWER SUPPLY AND ELECTRONIC BALLAST WITH AUXILIARY PROTECTION CIRCUIT
Title (de)
ENERGIEVERSORGUNG UND ELEKTRONISCHES VORSCHALTGERÄT MIT HILFSSCHUTZSCHALTUNG
Title (fr)
ALIMENTATION ET BALLAST ELECTRONIQUE A CIRCUIT DE PROTECTION AUXILIAIRE
Publication
Application
Priority
- US 2007019519 W 20070907
- US 53763706 A 20060930
Abstract (en)
[origin: WO2008039293A2] An arrangement (10) comprises a front-end circuit (100), a back-end circuit (200), and an auxiliary protection circuit (300). Front-end circuit (100), which typically includes an EMI filter and rectifier circuitry, has first and second input connections (12,14) for receiving a conventional source of AC voltage (20). Back-end circuit (200), which typically includes power factor correction and inverter circuitry, is coupled to front-end circuit (100) and a load (30) such as one or more gas discharge lamps. Auxiliary protection circuit (300) is coupled between front- end circuit (100) and back-end circuit (200). During operation, auxiliary protection circuit (300) protects back-end circuit (200) from any malfunction or damage that may occur due to a line-sag condition or due to a phase-to-phase miswiring condition. Additionally, auxiliary protection circuit (300) significantly reduces the peak inrush current that is experienced by arrangement (10) following initial application of AC power.
IPC 8 full level
H02H 3/20 (2006.01); H02J 9/02 (2006.01); H05B 41/285 (2006.01)
CPC (source: EP KR)
H02H 3/00 (2013.01 - KR); H02J 9/02 (2013.01 - EP KR); H05B 41/285 (2013.01 - KR); H05B 41/2853 (2013.01 - EP); H05B 41/2856 (2013.01 - EP); H02H 7/1213 (2013.01 - EP)
Citation (search report)
- [XA] US 6781502 B1 20040824 - ROBB STEPHEN P [US]
- [XA] US 3571608 A 19710323 - HURD EDWARD T E
- [XA] DE 3425235 C1 19920312 - BSO STEUERUNGSTECHNIK GMBH
- [XA] US 2005259373 A1 20051124 - HOOPES MICHAEL L [US]
- [XA] WO 9624170 A1 19960808 - MOTOROLA INC [US]
- [XA] US 2005007711 A1 20050113 - LIU KWANG H [US], et al
- [A] US 2004100208 A1 20040527 - READIO PHILIP O [US], et al
- See references of WO 2008039293A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008039293 A2 20080403; WO 2008039293 A3 20080612; CN 101523679 A 20090902; CN 101523679 B 20120613; EP 2067235 A2 20090610; EP 2067235 A4 20100310; KR 20090096689 A 20090914
DOCDB simple family (application)
US 2007019519 W 20070907; CN 200780036149 A 20070907; EP 07837873 A 20070907; KR 20097008849 A 20070907