EP 3114856 A1 20170111 - DEVICE AND METHOD FOR FILTERING THE RESONANCE PEAK IN A CIRCUIT FOR SUPPLYING AT LEAST ONE LOUD SPEAKER UPSTREAM OF THE LATTER
Title (en)
DEVICE AND METHOD FOR FILTERING THE RESONANCE PEAK IN A CIRCUIT FOR SUPPLYING AT LEAST ONE LOUD SPEAKER UPSTREAM OF THE LATTER
Title (de)
VORRICHTUNG UND VERFAHREN ZUR FILTRIERUNG DER RESONANZSPITZE IN EINER SCHALTUNG ZUR VERSORGUNG VON MINDESTENS EINEM VORGESCHALTETEN LAUTSPRECHER
Title (fr)
DISPOSITIF ET PROCÉDÉ DE FILTRAGE DU PIC DE RÉSONANCE DANS UN CIRCUIT D'ALIMENTATION D'AU MOINS UN HAUT-PARLEUR EN AMONT DE CELUI-CI
Publication
Application
Priority
- FR 1400581 A 20140305
- FR 2015000049 W 20150303
Abstract (en)
[origin: WO2015140421A1] The present invention relates to a circuit for supplying acoustic signals to at least one loudspeaker (LS), this circuit comprising a device for filtering the resonance peak occurring at a certain frequency of the supply current, characterized in that the device for filtering the peak is incorporated into a first bypass branch of the intermediate circuit between at least two converters (A, AO), this filtering device being purely electrical in the form of an impedance (Z3) connected on the one hand, to a point of the intermediate circuit, and, on the other hand to an instrumentation earth, the impedance being termed RLC (Z3), comprising at least one first resistor (R3), at least one first capacitor (C3) and at least one first inductor (L3) arranged in series, the parameters of the first resistor (R3), of the first capacitor (C3) and of the first inductor (L3) being predetermined as a function of the resonance peak to be filtered.
IPC 8 full level
H04R 3/08 (2006.01)
CPC (source: EP US)
H04R 3/08 (2013.01 - EP US)
Citation (search report)
See references of WO 2015140421A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3018419 A1 20150911; FR 3018419 B1 20170623; CN 106063294 A 20161026; EP 3114856 A1 20170111; JP 2017512023 A 20170427; JP 6452207 B2 20190116; US 10271139 B2 20190423; US 2017171660 A1 20170615; WO 2015140421 A1 20150924
DOCDB simple family (application)
FR 1400581 A 20140305; CN 201580011366 A 20150303; EP 15714246 A 20150303; FR 2015000049 W 20150303; JP 2016554730 A 20150303; US 201515127851 A 20150303