EP 1484947 B1 20090819 - Switch circuit arrangement for driving lamps
Title (en)
Switch circuit arrangement for driving lamps
Title (de)
Ansteuerschaltung für den Betrieb mindestens einer Lampe in einem dazugehörigen Lastkreis
Title (fr)
Circuit interrupteur pour commander une lampe
Publication
Application
Priority
DE 10325872 A 20030606
Abstract (en)
[origin: EP1484947A2] The circuit has two switches in a half-bridge arrangement. Each switch has a bipolar transistor (B2) and a field effect transistor (F2) with control, working and reference electrodes in a cascode circuit. The half bridge center point is coupled to the at least one load circuit. Each cascode circuit has an input stage (E2) with the series circuit of a diode (D21) and transformer secondary winding (L2) arranged parallel to the bipolar transistor's control electrode and the FET's reference electrode. The transformer primary (L 0) is in the load circuit to carry the load current (IL) when the lamp(s) is operating.
IPC 8 full level
H05B 41/282 (2006.01)
CPC (source: EP KR US)
H05B 41/282 (2013.01 - KR); H05B 41/2825 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1484947 A2 20041208; EP 1484947 A3 20060118; EP 1484947 B1 20090819; CA 2469575 A1 20041206; CN 100574549 C 20091223; CN 1575079 A 20050202; DE 10325872 A1 20041223; DE 502004009910 D1 20091001; KR 20040105592 A 20041216; TW 200503584 A 20050116; US 2004245938 A1 20041209; US 7057355 B2 20060606
DOCDB simple family (application)
EP 04009454 A 20040421; CA 2469575 A 20040602; CN 200410048486 A 20040607; DE 10325872 A 20030606; DE 502004009910 T 20040421; KR 20040041155 A 20040605; TW 93112716 A 20040506; US 85122704 A 20040524