SYSTEM AND METHOD FOR TUNING AN INDUCTION CIRCUIT

    公开(公告)号:EP3474631A1

    公开(公告)日:2019-04-24

    申请号:EP18202171.7

    申请日:2018-10-23

    IPC分类号: H05B6/06 H05B6/08

    摘要: An induction cooking system (10) comprises a power supply bus (52) and a plurality of resonant inverters (44, 100) in connection with the power supply bus (52). Each of the resonant inverters (44, 100) comprises a dedicated resonant capacitor (60, 102). The system (10) further comprises a plurality of inductors (16) configured to generate an electromagnetic field in connection with the resonant inverters (44, 100). At least one switch (64, 72) is configured to control a plurality of switch configurations. A tuning capacitor (62) is in connection with each of the dedicated resonant capacitors (60, 102) via the at least one switch (64, 72). The at least one switch (64, 72) is configured to selectively connect the tuning capacitor (62) in parallel with one of the dedicated resonant capacitors (60, 102) in each of the plurality of switch configurations.

    A cooking hob with a balance system and a method for adjusting the temperature of a cooking vessel
    37.
    发明公开
    A cooking hob with a balance system and a method for adjusting the temperature of a cooking vessel 有权
    烹饪场用的补偿系统和方法,用于调节烹饪容器的温度

    公开(公告)号:EP2442034A1

    公开(公告)日:2012-04-18

    申请号:EP10013667.0

    申请日:2010-10-14

    摘要: The present invention relates to a cooking hob (10) including at least two cooking zones (16, 18) and a balance system for adjusting the temperature of a cooking vessel (20) after said cooking vessel (20) has been moved from a first cooking zone (16) to a second cooking zone (18). The cooking zones (16, 18) comprise or correspond with a vessel recognition device in each case. The cooking hob (10) includes a sensor device for detecting the temperature of the first cooking zone (16). The balance system is provided for activating a boosted power level (30) at the second cooking zone (18) for an estimated time in order to compensate the energy loss (Q s ) of the cooking vessel (20) during setting said cooking vessel (20) on the second cooking zone (18). The boosted power level (30) is estimated on the basis of a pre-set power level (28) of the second cooking zone (18), the temperature of the first cooking zone (16) before the cooking vessel (20) has been set on the second cooking zone (18) and an estimated time for activating the boosted power level (30). Further, the present invention relates to a method for adjusting the temperature of a cooking vessel (20) on a cooking hob (10), after said cooking vessel has been moved from one cooking zone (16) to another cooking zone (18).

    摘要翻译: 本发明涉及(10)包括至少两个加热区(16,18)和用于调节所述烹调容器后的烹饪容器(20)的温度的平衡系统提出了烹饪(20)已经从第一位置移动 烹饪区域(16)移动到第二加热区(18)。 烹饪区(16,18)包括或在每种情况下一个容器识别装置相对应。 (10)中提出的烹饪包括用于检测所述第一加热区(16)的温度的传感器装置。 平衡系统被设置用于在所述第二加热区(18),用于在估计的时间,以便在以补偿所述烹饪容器(20)的能量损失(Q S)激活升高的功率电平(30)设定所述烹调容器( 20)在所述第二加热区(18)。 升高的功率电平(30)推定出的第二加热区(18),所述烹饪容器中之前第一加热区(16)的温度的预先设定的功率电平(28)的基础上,(20)已经 在第二加热区(18)和上用于激活升高的功率水平(30)估计的时间设定。 此外,本发明涉及一种方法,用于(10)上凸起的烹饪调节烹饪容器(20)的温度,之后所述烹饪容器已被从一个加热区(16)到另一个加热区(18)移动。

    INDUCTION HEATING SYSTEM FOR REDUCED SWITCH STRESS
    39.
    发明公开
    INDUCTION HEATING SYSTEM FOR REDUCED SWITCH STRESS 审中-公开
    感应加热系统,可降低开关负载

    公开(公告)号:EP1665890A1

    公开(公告)日:2006-06-07

    申请号:EP04780736.7

    申请日:2004-08-11

    发明人: RING, Edmund, J.

    IPC分类号: H05B6/02 H05B6/06 H05B6/08

    CPC分类号: H05B6/06 H05B6/08

    摘要: An induction heating system (20) is provided. The induction heating system (20) comprises a power switch (26), a resonant heating circuit (24), and a pulse initiator (30). The resonant heating circuit (24) is configured to generate an oscillating voltage in response to a DC pulse input. The pulse initiator (30) is positioned across the power switch (26) and configured to monitor a voltage across the power switch and to initiate application of a subsequent DC pulse to the resonant heating circuit (24) upon detecting a substantially zero voltage crossing at the power switch (26) during a first cycle of the oscillating voltage.

    STROMVERSORGUNGSVORRICHTUNG ZUR SPEISUNG EINER EINPHASIGEN LAST, INSBESONDERE EINES EINPHASIGEN INDUKTIONSOFENS, AUS DEM DREHSTROMNETZ
    40.
    发明公开
    STROMVERSORGUNGSVORRICHTUNG ZUR SPEISUNG EINER EINPHASIGEN LAST, INSBESONDERE EINES EINPHASIGEN INDUKTIONSOFENS, AUS DEM DREHSTROMNETZ 有权
    电源装置,用于输送单相负载,特别是单相感应炉从三相系统

    公开(公告)号:EP1604550A1

    公开(公告)日:2005-12-14

    申请号:EP04718905.5

    申请日:2004-03-10

    申请人: Otto Junker GmbH

    IPC分类号: H05B6/08

    CPC分类号: H05B6/08

    摘要: The invention relates to a power supply system for supplying a single phase load, especially a single phase induction furnace (O), from the three-phase network, characterized in that a power converter (S) is provided that has, in addition to the two initial potentials for connecting a parallel compensated load (O) at least one additional initial potential, and in that one or more balancing reactances for energy storage having dual initial frequency are connected between said additional initial potential and one of the initial potentials for connecting the load (O), or between the additional initial potentials. The system is further characterized in that the control of the converter and/or the balancing reactances can be adapted to the impedance of the load (O) in various operating points. The invention also relates to a control method for controlling the supply of a single phase load, especially a single phase induction furnace (O), from the three-phase network comprising a device according to one of the preceding claims. The inventive method is characterized by facilitating the variation of the amplitude and/or the phase position and/or the frequency of the output voltages when the resistance and/or the inductance of the load change, thereby adjusting power. In this manner it is possible to reduce the amount of reactances, i.e. of inductances and/or capacitors, required.