Global Patent Index - EP 2405711 A3

EP 2405711 A3 20130911 - Induction heating method and unit

Title (en)

Induction heating method and unit

Title (de)

Induktionsheizverfahren und -einheit

Title (fr)

Procédé et unité de chauffage par induction

Publication

EP 2405711 A3 20130911 (EN)

Application

EP 11184312 A 20020626

Priority

  • EP 11184312 A 20020626
  • EP 02741342 A 20020626

Abstract (en)

[origin: EP2405711A2] An induction heating method comprising the steps of supplying a plurality of heating coils with electricity by resonance-type inverters respectively corresponding to said heating coils with one of said resonance-type inverters being a main inverter and another being a subordinate inverter, driving said subordinate inverter in such a manner that a phase of a current supplied to said heating coil on a subordinate side is synchronized with a phase of a current supplied to said heating coil on said main side or maintained at a phase difference to be set, based on a drive signal of said main inverter or an output voltage or an output current of said main inverter.

IPC 8 full level

A45D 20/12 (2006.01); H05B 6/06 (2006.01); H05B 6/12 (2006.01); H05B 6/14 (2006.01); H05B 6/44 (2006.01)

CPC (source: EP)

A45D 20/12 (2013.01); H05B 6/04 (2013.01); H05B 6/06 (2013.01); H05B 6/067 (2013.01); H05B 6/145 (2013.01)

Citation (search report)

[X] US 5250777 A 19931005 - FISHMAN OLEG [US]

Designated contracting state (EPC)

BE DE FR GB

DOCDB simple family (publication)

EP 2405711 A2 20120111; EP 2405711 A3 20130911; EP 2405711 B1 20150506

DOCDB simple family (application)

EP 11184312 A 20020626