- 专利标题: METHOD FOR CONTROLLING THE PROVISION OF ELECTRIC POWER TO AN INDUCTION COIL
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申请号: EP19187195.3申请日: 2019-07-19
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公开(公告)号: EP3768042A1公开(公告)日: 2021-01-20
- 发明人: ZANGOLI, Massimo , NOSTRO, Massimo , VIROLI, Alex , XU, Chunlong
- 申请人: ELECTROLUX APPLIANCES AKTIEBOLAG
- 申请人地址: SE 105 45 Stockholm S:t Göransgatan 143
- 代理机构: Electrolux Group Patents
- 主分类号: H05B6/06
- IPC分类号: H05B6/06
摘要:
The invention relates to a method for controlling the provision of electric power to an induction coil (L) of an induction cooking appliance (1), the induction cooking appliance (1) comprising a circuitry (10) with an input (11), at least one switching element (S) for providing pulsed electric power to the induction coil (L) and a capacitor (C) being connected in parallel to the switching element (S), the method comprising the steps of:
- receiving rectified AC-voltage (V in ) at the input (11) of the circuitry (10);
- discharging the capacitor (C) in order to reduce the voltage provided to the switching element (S);
- after at least partially discharging the capacitor (C), starting a switching operation of the switching element (S);
- stopping the switching operation after a switching operation time; and
- iterating the steps of discharging of capacitor (C), starting of switching operation and stopping of switching operation in subsequent periods of rectified AC-voltage (V in ).
- receiving rectified AC-voltage (V in ) at the input (11) of the circuitry (10);
- discharging the capacitor (C) in order to reduce the voltage provided to the switching element (S);
- after at least partially discharging the capacitor (C), starting a switching operation of the switching element (S);
- stopping the switching operation after a switching operation time; and
- iterating the steps of discharging of capacitor (C), starting of switching operation and stopping of switching operation in subsequent periods of rectified AC-voltage (V in ).
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