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Title:
A METAL DETECTION SYSTEM COMPRISING A COIL SUPPLIED BY A HIGH FREQUENCY GENERATOR
Document Type and Number:
WIPO Patent Application WO/2019/129430
Kind Code:
A1
Abstract:
The present invention relates to a metal detection system (100), comprising, in it most basic form, a plurality of supply circuits (200); resonance inverter circuits (300) having an induction coil (312), a transformer (320) and an inverter (340); driver circuits (400) adapted to drive the inverters (340) in at least one switching frequency; metal detection circuits (500) adapted to detect presence and type of a cooking container (P) on the induction coils (312) according to the output amplitude (Vout) of the resonance circuits (310); high frequency generator circuits (600) for supplying the resonance circuits (310); resonance adjustment members (700) connected to the high frequency generator circuits (600); switching units (800) for connecting each resonance circuit (310) in series to a supply circuit (200) or to a high frequency generator circuit (600); a position detection circuit (900) adapted to determine the positions of one or more cooking containers (P); and a control circuit (1000) adapted to send signals to the driver circuit (400) for it to drive at least one switching unit (800) and at least one inverter (340) to be driven according to the feedback from the metal detection circuits (500), position detection circuit (900), a button circuit and the transformers (320).

Inventors:
YILMAZ NAMIK (TR)
ASTOPRAK METIN (TR)
OZTURK METIN (TR)
YARDIBI HAKAN SULEYMAN (TR)
OKTAY ULAS (TR)
Application Number:
PCT/EP2018/082038
Publication Date:
July 04, 2019
Filing Date:
November 21, 2018
Export Citation:
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Assignee:
ARCELIK AS (TR)
International Classes:
H03K17/95; H05B6/06
Domestic Patent References:
WO2014090864A12014-06-19
WO2016010490A12016-01-21
Foreign References:
US5648008A1997-07-15
GB2199454A1988-07-06
JP2011023163A2011-02-03
DE10033361A12002-01-24
EP1206164B12007-01-03
EP1439739B12009-09-23
EP1542508B12006-09-27
EP1768258A22007-03-28
EP0561208B11997-05-28
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