EP 2715105 A1 20140409 - POWER SUPPLY FOR RADIOFREQUENCY IGNITION WITH DUAL-STAGE AMPLIFIER
Title (en)
POWER SUPPLY FOR RADIOFREQUENCY IGNITION WITH DUAL-STAGE AMPLIFIER
Title (de)
NETZTEIL ZUR FUNKFREQUENZZÜNDUNG MIT EINEM ZWEISTUFIGEN VERSTÄRKER
Title (fr)
ALIMENTATION POUR ALLUMAGE RADIOFREQUENCE AVEC AMPLIFICATEUR A DOUBLE ETAGE
Publication
Application
Priority
- FR 1154546 A 20110525
- FR 2012051165 W 20120524
Abstract (en)
[origin: WO2012160317A1] The invention relates to a power supply device for a radiofrequency ignition, said device being intended to supply a DC voltage at a predefined frequency to a series resonator and comprising a power supply source (3) able to deliver a DC power supply voltage (Valim), a DC-DC converter (4) amplifying said DC power supply voltage (Valim) and delivering on one output a DC voltage, known as the intermediate voltage (Vinter), the amplitude of which is higher than said DC power supply voltage, and a power switch controlled by a control signal for selectively applying said intermediate voltage (Vinter) to the series resonator at a control frequency equal to said predefined frequency. According to the invention, the DC-DC converter comprises two stages, a voltage raising stage (41) and a voltage regulating stage (42) so as to reduce the voltage drops at the output side of the converter when the ignition generates sparks.
IPC 8 full level
F02P 3/08 (2006.01); F02P 23/04 (2006.01); H02M 3/158 (2006.01)
CPC (source: EP)
F02P 3/0884 (2013.01); F02P 3/0892 (2013.01); F02P 23/04 (2013.01); F02P 3/01 (2013.01); H02M 1/007 (2021.05); H02M 3/1582 (2013.01)
Citation (search report)
See references of WO 2012160317A1
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
DOCDB simple family (publication)
WO 2012160317 A1 20121129; EP 2715105 A1 20140409; FR 2975863 A1 20121130; FR 2975863 B1 20130517
DOCDB simple family (application)
FR 2012051165 W 20120524; EP 12731053 A 20120524; FR 1154546 A 20110525