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Patent Searching and Data


Title:
INDUCTION HEATING DEVICE WITH IMPROVED CONTROL ALGORITHM
Document Type and Number:
WIPO Patent Application WO/2019/135492
Kind Code:
A1
Abstract:
The present invention relates to an induction heating device with an improved control algorithm. In addition, the induction heating device according to one embodiment of the present invention comprises: a working coil unit including first and second working coils connected in parallel; an inverter unit for applying a resonance current to at least one of the first and second working coils by performing a switching operation; a first semiconductor switch connected to the first working coil to turn-on or turn-off the first working coil; a second semiconductor switch connected to the second working coil to turn on or turn off the second working coil; and a control unit for controlling operations of the inverter unit and the first and second semiconductor switches, respectively, wherein the control unit turns off the inverter unit before turning off at least one of the first and second semiconductor switches.

Inventors:
OK SEUNGBOK (KR)
PARK BYEONG WOOK (KR)
LEE JAE-WOO (KR)
Application Number:
PCT/KR2018/014881
Publication Date:
July 11, 2019
Filing Date:
November 28, 2018
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H05B6/06; H05B6/12
Foreign References:
KR20110092071A2011-08-17
KR20170123821A2017-11-09
KR20100120015A2010-11-12
KR20070114489A2007-12-04
KR101659001B12016-09-23
EP2928265A12015-10-07
Other References:
See also references of EP 3740031A4
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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