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    Startup control method of brushless DC motor
    1.
    发明授权
    Startup control method of brushless DC motor 有权
    无刷直流电机启动控制方法

    公开(公告)号：US07095204B2

    公开(公告)日：2006-08-22

    申请号：US11183956

    申请日：2005-07-19

    申请人： Kwang Woon Lee ,  Dae Kyong Kim ,  Sang Taek Lee ,  Hyen Young Choi

    发明人： Kwang Woon Lee ,  Dae Kyong Kim ,  Sang Taek Lee ,  Hyen Young Choi

    IPC分类号： H02P1/46

    CPC分类号： H02P6/20 ,  H02P6/182

    摘要： A startup control method of a BLDC motor is disclosed. The method can control the BLDC motor to prevent the generation of a transient current such that the vibration of the BLDC motor can be reduced at the startup stage and perform a stable conversion into a sensorless operation mode such that the startup failure rate of the BLDC motor can be reduced. The startup control method includes commutating a current applied to stator windings according to a rotor position. The method of operating the BLDC motor includes a rotor position that is forcibly aligned and so that phase commutation is performed, a back-electromotive force (back-emf) is detected from a lead voltage of a phase of a voltage which is not applied thereto after performing phase commutation and a determination is performed as to whether the detected back-emf is in a rising interval. The lead voltage of the phase of the voltage which is not applied thereto is integrated, such that if the back-emf is in a rising interval and if an instance that the integration result is greater than a predetermined value a phase commutation time point is set and conversion into a sensorless operation mode is performed if the back-emf detected from the lead voltage is in a stable interval, based on a frequency of the voltage applied to the stator winding.

    摘要翻译： 公开了一种BLDC电机的启动控制方法。 该方法可以控制BLDC电机，以防止瞬态电流的产生，从而可以在起动阶段减小BLDC电机的振动，并执行稳定转换为无传感器运行模式，使得BLDC电机的启动故障率 可以减少 启动控制方法包括根据转子位置对应用于定子绕组的电流进行换向。 操作BLDC电动机的方法包括被强制对准的转子位置，从而进行相位换向，从未施加到其上的电压的相位的引导电压检测反向电动势（反电动势） 在执行相位换向之后，执行关于所检测的反电动势是否处于上升间隔的确定。 未对其施加的电压的相位的引导电压被积分，使得如果反电动势处于上升间隔，并且如果积分结果大于预定值的情况，则设置相位换向时间点 并且如果从引线电压检测到的反电动势基于施加到定子绕组的电压的频率处于稳定的间隔，则执行转换为无传感器操作模式。

    Refrigerator and safety control method thereof
    3.
    发明申请
    Refrigerator and safety control method thereof 审中-公开
    冰箱及其安全控制方法

    公开(公告)号：US20080066472A1

    公开(公告)日：2008-03-20

    申请号：US11790261

    申请日：2007-04-24

    申请人： Sang Taek Lee ,  Young Shik Shin ,  Jung Soo Lim ,  Jae Seung Lee ,  Kyung Hee Hahm ,  Hye Ran Lee ,  Jeong Han Kim ,  Chang Hak Lim ,  Sook Hyun Hong ,  Joo Young Ha ,  Hee Won Jin ,  Bong Su Son

    发明人： Sang Taek Lee ,  Young Shik Shin ,  Jung Soo Lim ,  Jae Seung Lee ,  Kyung Hee Hahm ,  Hye Ran Lee ,  Jeong Han Kim ,  Chang Hak Lim ,  Sook Hyun Hong ,  Joo Young Ha ,  Hee Won Jin ,  Bong Su Son

    IPC分类号： F25D29/00

    CPC分类号： F25D17/042 ,  F25D2700/04

    摘要： A refrigerator and a safety control method thereof, which is capable of ensuring protection from a high voltage applied to a shelf on which food is placed in order to improve food preservation. The safety control method of a refrigerator having a storage chamber which stores food, the method includes sensing a chamber temperature of the storage chamber, comparing the sensed chamber temperature with a predetermined setting temperature and generating a high voltage when the chamber temperature is less than the predetermined setting temperature, supplying the generated high voltage to the inside of the storage chamber to preserve the food, determining whether a high voltage cutoff condition occurs while the high voltage is supplied to the inside of the storage chamber, and cutting off the high voltage supplied to the inside of the storage chamber when the high voltage cutoff condition occurs.

    摘要翻译： 一种冰箱及其安全控制方法，其能够确保防止施加到放置食物的搁架上的高电压以改善食物保存。 一种具有储存食物的储藏室的冰箱的安全控制方法，所述方法包括：检测储存室的室温度，将检测到的室温度与预定的设定温度进行比较，并且当室温度低于室温时产生高电压 预定的设定温度，将产生的高电压提供到储存室的内部以保存食物，确定在向存储室的内部提供高电压时是否发生高电压切断条件，以及切断提供的高电压 当发生高电压切断条件时，到存储室的内部。

    Power supply device
    5.
    发明申请
    Power supply device 审中-公开
    电源设备

    公开(公告)号：US20070170900A1

    公开(公告)日：2007-07-26

    申请号：US11606327

    申请日：2006-11-30

    申请人： Sang Taek Lee

    发明人： Sang Taek Lee

    IPC分类号： G05F1/247

    CPC分类号： H02M7/062

    摘要： A power supply device supplying power to various electric devices or inverters of a DC motor. The power supply device can detect an over-voltage which is applied to various electric devices or inverters of a DC motor from an external power source or an over-voltage caused by defects of power lines. The power supply device can break power, such that power supply circuits or systems can be protected against damage and malfunction thereof. The power supply device includes a rectifier rectifying power from an external AC power source, a smoothing unit, and an over-voltage protection circuit determining whether the rectified voltage includes an over-voltage, and breaking the over-voltage before the over-voltage is applied to the smoothing unit if the determination is positive.

    摘要翻译： 向DC电机的各种电气设备或逆变器供电的电源装置。 电源装置可以检测从外部电源施加到DC电动机的各种电气装置或逆变器的过电压或由电力线的缺陷引起的过电压。 电源装置可以断电，从而可以保护电源电路或系统免受损坏和故障的影响。 电源装置包括来自外部交流电源的整流整流电源，平滑单元和确定整流电压是否包括过电压的过电压保护电路，以及在过电压之前断开过电压 如果确定为正，则应用于平滑单元。