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    • 102. 发明申请
    • Startup control method of brushless DC motor
    • 无刷直流电机启动控制方法
    • US20060132075A1
    • 2006-06-22
    • US11183956
    • 2005-07-19
    • Kwang LeeDae KimSang LeeHyen Choi
    • Kwang LeeDae KimSang LeeHyen Choi
    • H02P7/06
    • H02P6/20H02P6/182
    • 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 senseless 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 setand conversion into a senseless 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.
    • 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,以防止产生瞬态电流,从而可以在启动阶段减小BLDC电机的振动,并执行稳定转换为无意义运行模式,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线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, 基于施加到定子绕组的电压的频率,如果从引线电压检测到的反电动势处于稳定的间隔,则执行转换为无意义操作模式。
    • 108. 发明申请
    • Optical module with accurate axial alignment using a platform
    • 使用平台精确轴向对准的光学模块
    • US20050117848A1
    • 2005-06-02
    • US10999444
    • 2004-11-29
    • Kwang YangDae KimDo Kim
    • Kwang YangDae KimDo Kim
    • G02B6/36G02B6/42
    • G02B6/423G02B6/4239G02B6/4246
    • An optical communication module is provided with a platform to provide an accurate axial alignment with optical transceiving subassemblies. In the optical communication module, axes of the optical transceiving sub-assemblies are aligned by virtue of previously established axial alignment of the platform, and the platform is fixed to a main body by inserting an insertion jaw of a cover into an insertion groove formed on an upper surface of the platform. After the optical transceiving subassemblies are inserted into the platform having the axial alignment required for a system, a bonding agent is filled into spaces defined in the platform, thereby preventing the axes from deviated by an external force. The optical communication module allows for easier and more accurate guidance of a connection between the optical transceiving sub-assemblies and the optical connector, thereby minimizing the optical loss, and preventing the patterns on the printed circuit board from being damaged due to the insertion and disconnection of the optical connector.
    • 光通信模块设置有平台以提供与光收发子组件的精确轴向对准。 在光通信模块中,通过先前建立的平台的轴向对准,光收发子组件的轴线对准,并且平台通过将盖的插入爪插入到形成在其上的插入槽中而固定到主体上 平台的上表面。 在将光学收发组件插入到具有系统所需的轴向对准的平台中之后,将粘合剂填充到平台中限定的空间中,从而防止轴由于外力而偏离。 光通信模块允许更容易且更精确地引导光学收发子组件和光学连接器之间的连接,从而最小化光学损耗,并且防止印刷电路板上的图案由于插入和断开而被损坏 的光连接器。
    • 110. 发明申请
    • Coffee maker and microwave oven and method for controlling the same
    • 咖啡壶和微波炉及其控制方法
    • US20050115413A1
    • 2005-06-02
    • US11000221
    • 2004-12-01
    • Dae KimMan ParkWan ChoWang LeeJung Kwon
    • Dae KimMan ParkWan ChoWang LeeJung Kwon
    • A47J31/057A47J31/54A47J31/56A47J36/02A47J31/00
    • A47J31/547A47J31/0573A47J31/545A47J31/56A47J36/027
    • Coffee maker and microwave oven and method for controlling the same which can prevent electric components suffering from damage caused by overheating of a heater. The coffee maker and microwave oven includes an outfit room for mounting various electric parts on an inside thereof, a case at one side of the outfit room, a water tank in an upper space of the case, a funnel under the water tank having a filter for extracting coffee, a water supply pipe having a first pipe connected to the water tank, and a second pipe for supplying potable water to the funnel directly, a water supply tube on a bottom of the case, having one end connected to the first pipe, and the other end connected to the second pipe, a heater tube in contact with the water supply tube, the heater tube having a heater for heating potable water passing through the water tube, and a temperature sensing unit in the vicinity of the heater tube for measuring a temperature of the heater. The method includes the steps of a user putting a coffee maker unit into operation, supplying potable water from a water tank to a funnel through a water pipe and a water tube, and, at the same time with this, putting a heater in a heater tube in contact with the water tube into operation, to heat the potable water passing through the water tube, measuring a temperature of the heater periodically by using a temperature sensing unit in the vicinity of the heater tube, calculating a rate of temperature change of the heater according to the temperature measured, and cutting off power supply to the heater if the rate of the temperature change of the heater is higher than a preset value.
    • 咖啡机和微波炉及其控制方法,可防止电热元件受加热器过热造成的损坏。 咖啡机和微波炉包括用于在其内部安装各种电气部件的装置室,装置室一侧的壳体,壳体的上部空间中的水箱,水箱下面的漏斗,具有过滤器 用于提取咖啡,具有连接到水箱的第一管的供水管和用于向漏斗直接供应饮用水的第二管,在壳的底部上的供水管,其一端连接到第一管 并且另一端连接到第二管,与供水管接触的加热管,加热器管具有用于加热通过水管的饮用水的加热器,以及在加热管附近的温度感测单元 用于测量加热器的温度。 该方法包括用户将咖啡机单元投入运行的步骤,通过水管和水管将饮用水从水箱提供到漏斗,同时将加热器放入加热器 管与水管接触进行操作,加热通过水管的饮用水,通过使用加热器管附近的温度感测单元周期性地测量加热器的温度,计算加热器管的温度变化率 加热器根据测量的温度,如果加热器的温度变化率高于预设值,则切断加热器的电源。