EP 1943886 A1 20080716 - DRIVE CIRCUIT FOR A SWITCHABLE HEATING TRANSFORMER OF AN ELECTRONIC BALLAST AND CORRESPONDING METHOD
Title (en)
DRIVE CIRCUIT FOR A SWITCHABLE HEATING TRANSFORMER OF AN ELECTRONIC BALLAST AND CORRESPONDING METHOD
Title (de)
ANSTEUERSCHALTUNG FÜR EINEN SCHALTBAREN HEIZTRANSFORMATOR EINES ELEKTRONISCHEN VORSCHALTGERÄTS UND ENTSPRECHENDES VERFAHREN
Title (fr)
CIRCUIT DE COMMANDE D'UN TRANSFORMATEUR COMMUTABLE DE CHAUFFAGE D'UN APPAREIL ELECTRONIQUE DE PRE-COMMUTATION ET PROCEDE CORRESPONDANT
Publication
Application
Priority
- EP 2006067786 W 20061026
- DE 102005052525 A 20051103
Abstract (en)
[origin: WO2007051751A1] The drive signal for a switchable heating transformer of an electronic ballast should be capable of being produced in a simple manner. For this purpose, the invention provides for an oscillating inverter voltage, which has a variable inverter frequency, to be tapped off, for example, at the half-bridge center point. The inverter frequency is then preferably converted into a drive signal by a charge pump (C1, C2, D1, D2). As a function of this drive signal, the heating transformer (HT) is switched. Synchronization with externally controlled sequence control of the electronic ballast is therefore also possible.
IPC 8 full level
H05B 41/295 (2006.01)
CPC (source: EP KR US)
H05B 41/295 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2007051751A1
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 NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005052525 A1 20070510; AU 2006310628 A1 20070510; AU 2006310628 B2 20120719; CA 2628465 A1 20070510; CN 101300906 A 20081105; CN 101300906 B 20131204; DE 502006005054 D1 20091119; EP 1943886 A1 20080716; EP 1943886 B1 20091007; KR 101339033 B1 20131209; KR 20080067370 A 20080718; TW 200723652 A 20070616; US 2009160356 A1 20090625; US 7723920 B2 20100525; WO 2007051751 A1 20070510
DOCDB simple family (application)
DE 102005052525 A 20051103; AU 2006310628 A 20061026; CA 2628465 A 20061026; CN 200680040590 A 20061026; DE 502006005054 T 20061026; EP 06807557 A 20061026; EP 2006067786 W 20061026; KR 20087013310 A 20061026; TW 95140175 A 20061031; US 8446506 A 20061026