EP 0585727 B1 19981118 - DC-AC converter with two charging capacitors connected in series
Title (en)
DC-AC converter with two charging capacitors connected in series
Title (de)
Wechselrichterschaltung mit zwei in Reihe geschalteten Glättungskapazitäten
Title (fr)
Onduleur avec deux capacités de filtrage en série
Publication
Application
Priority
DE 4228682 A 19920828
Abstract (en)
[origin: EP0585727A1] A ballast for a gas-discharge lamp having a rectifier which is supplied from the mains, has two smoothing capacitors (220, 221) in a series circuit between its two outputs and, for its part, supplies an invertor which comprises two controllable switches (201, 202) which are arranged in series and are connected between the two inputs (A, B); a series circuit which is arranged in parallel with the two controllable switches (201,202) and consists of two further capacitors (218,219); and a series circuit consisting of a primary winding (209) of a saturable transformer, an inductor (215) and a parallel circuit comprising a capacitor (217) and the gas-discharge lamp (216), the series circuit connecting the centre tap of the two switches (201, 202) to the centre tap of the two further capacitors (218, 219), and the centre tap of the two further capacitors (218, 219) being connected via a conductor (222) to the centre tap of the two smoothing capacitors (220, 221). <IMAGE>
IPC 1-7
IPC 8 full level
H05B 41/28 (2006.01)
CPC (source: EP)
H05B 41/28 (2013.01)
Citation (examination)
DE 4021640 A1 19920109 - ZUMTOBEL AG [AT]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0585727 A1 19940309; EP 0585727 B1 19981118; AT E173576 T1 19981215; DE 4228682 A1 19940303; DE 59309134 D1 19981224
DOCDB simple family (application)
EP 93113170 A 19930817; AT 93113170 T 19930817; DE 4228682 A 19920828; DE 59309134 T 19930817