EP 1897200 A2 20080312 - ELECTRICAL POWER SUPPLY ARRANGEMENT FOR AN LED FLASH IN A MOBILE TELEPHONE
Title (en)
ELECTRICAL POWER SUPPLY ARRANGEMENT FOR AN LED FLASH IN A MOBILE TELEPHONE
Title (de)
STROMVERSORGUNGSANORDNUNG FÜR EINEN LED-BLITZ IN EINEM MOBILTELEFON
Title (fr)
SYSTEME D'ALIMENTATION EN COURANT ET SON UTILISATION
Publication
Application
Priority
- EP 2006005972 W 20060621
- DE 102005030123 A 20050628
Abstract (en)
[origin: WO2007000272A2] The invention relates to an electrical power supply arrangement in which a capacitor having a lower internal resistance, particularly a super capacitor (3), is connected via a means for charging (4) to an input (1) and via a load current controller (9) to a connecting means (7) for an electrical load (8). Together with a feedback path, a control loop for the load current is formed by the electrical load (8). This makes a flash bulb operation possible in applications, e.g. mobile telephones, in batteries having a high internal resistance, whereby a high utilization of energy of the capacitor is provided during a controlled discharge with controlled current.
IPC 8 full level
G03B 15/03 (2006.01); H02J 1/04 (2006.01); H02J 7/00 (2006.01); H05B 37/02 (2006.01)
CPC (source: EP US)
H02J 7/345 (2013.01 - EP US); H02M 3/158 (2013.01 - EP US); H05B 45/375 (2020.01 - EP US); H05B 45/38 (2020.01 - EP US); H02J 2207/20 (2020.01 - EP US); Y02B 20/30 (2013.01 - EP US)
Citation (search report)
See references of WO 2007000272A2
Designated contracting state (EPC)
FR GB
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DE 102005030123 A1 20070104; DE 102005030123 B4 20170831; EP 1897200 A2 20080312; US 2009167260 A1 20090702; US 8716987 B2 20140506; WO 2007000272 A2 20070104; WO 2007000272 A3 20070913
DOCDB simple family (application)
DE 102005030123 A 20050628; EP 06754481 A 20060621; EP 2006005972 W 20060621; US 98812406 A 20060621