EP 0895443 A1 19990203 - Inrush current limiting circuit
Title (en)
Inrush current limiting circuit
Title (de)
Einschaltstrombegrenzungsschaltung
Title (fr)
Circuit limiteur de courant d'appel
Publication
Application
Priority
FR 9710034 A 19970731
Abstract (en)
The lamp (L) is series-connected, across the AC e.g. mains supply (P,N), with a single-pole switch and a peak-lopping circuit based on two MOSFET transistors (M1,M2). The load-carrying current connection between MOSFETs includes a resistance (Rm) providing current-related input levels to bipolar transistors (T1,T2) controlling the MOSFETs. Bypass diodes (D1,D2) ensure one MOSFET is inoperative during positive current half-cycles. The other during negative half-cycles. The series resistor provides current measurement for the relevant control transistor in both half-cycles. In one variant, a single peak-lopper is used, with a full-wave rectifier. In another, a MOSFET is used in a chopping mode. Optionally, IGBTs replace MOSFETs.
Abstract (fr)
L'invention concerne un circuit limiteur de courant d'appel d'une lampe (L) à filament, destiné à être connecté en série entre le filament et un interrupteur (K) d'alimentation par une tension alternative (Vac), comportant au moins un élément actif commandable, de limitation du courant à une valeur seuil prédéterminée. <IMAGE>
IPC 1-7
IPC 8 full level
H05B 39/02 (2006.01)
CPC (source: EP US)
H05B 39/02 (2013.01 - EP US)
Citation (search report)
- [A] EP 0735798 A1 19961002 - KORTE HEINRICH [DE]
- [A] EP 0240402 A1 19871007 - BENDIX ELECTRONICS SA [FR]
- [A] WO 9215052 A1 19920903 - BAYVIEW TECH GROUP INC [US]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0895443 A1 19990203; EP 0895443 B1 20020925; DE 69808202 D1 20021031; FR 2767017 A1 19990205; FR 2767017 B1 19991015; US 6445144 B1 20020903
DOCDB simple family (application)
EP 98410084 A 19980728; DE 69808202 T 19980728; FR 9710034 A 19970731; US 12440198 A 19980729