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1.发明授权公开(公告)号：US07848045B1
公开(公告)日：2010-12-07
申请号：US11511841
申请日：2006-08-28
申请人： Ying Tian Li , Siew Yong Chui , Cheng Yong Teoh
发明人： Ying Tian Li , Siew Yong Chui , Cheng Yong Teoh
摘要： The power required by a voice coil motor (VCM) to maintain the head in the data region of a disk drive during an idle mode is further reduced. The current supplied to the VCM is switched on and off. This takes advantage of the inherent inductance in the VCM, which maintains a current after the current supply is switched off. The current will slowly decay, with it being switched on again before it reaches a level where the average value won't offset the flex bias. In one embodiment, the current is maintained in a single direction, to offset the flex bias which pushes in one direction. Digital switches are used to reduce the power consumption of the control circuitry.
摘要翻译： 音圈电机（VCM）在空闲模式期间将磁头保持在磁盘驱动器的数据区域所需的功率进一步降低。 提供给VCM的电流打开和关闭。 这充分利用了VCM中的固有电感，该电感在电流供应关闭后保持电流。 电流将慢慢衰减，在其达到平均值不会抵消挠曲偏差的水平之前再次接通。 在一个实施例中，电流保持在单个方向上，以抵消在一个方向上推动的柔性偏压。 数字开关用于降低控制电路的功耗。
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2.发明授权公开(公告)号：US08144420B1
公开(公告)日：2012-03-27
申请号：US12916052
申请日：2010-10-29
申请人： Ying Tian Li , Siew Yong Chui , Cheng Yong Teoh
发明人： Ying Tian Li , Siew Yong Chui , Cheng Yong Teoh
摘要： The power required by a voice coil motor (VCM) to maintain the head in the data region of a disk drive during an idle mode is further reduced. The current supplied to the VCM is switched on and off. This takes advantage of the inherent capacitance and inductance in the VCM, which maintains a current after the current supply is switched off. The current will slowly decay, with it being switched on again before it reaches a level where the average value won't offset the flex bias. In one embodiment, the current is maintained in a single direction, to offset the flex bias which pushes in one direction. Digital switches are used to reduce the power consumption of the control circuitry.
摘要翻译： 音圈电机（VCM）在空闲模式期间将磁头保持在磁盘驱动器的数据区域所需的功率进一步降低。 提供给VCM的电流打开和关闭。 这充分利用了VCM中的固有电容和电感，该电容在电流关断后保持电流。 电流将慢慢衰减，在其达到平均值不会抵消挠曲偏差的水平之前再次接通。 在一个实施例中，电流保持在单个方向上，以抵消在一个方向上推动的柔性偏压。 数字开关用于降低控制电路的功耗。
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公开(公告)号：US08279727B1
公开(公告)日：2012-10-02
申请号：US12350732
申请日：2009-01-08
申请人： Siew Yong Chui , Rudy Kurniawan , Cheng Yong Teoh
发明人： Siew Yong Chui , Rudy Kurniawan , Cheng Yong Teoh
CPC分类号： G11B19/28
摘要： In one embodiment the present invention includes a circuit comprising a switch and a switch driver. The switch is configured to provide synchronous rectification switching of a back-EMF voltage. The synchronous rectification switching produces a source voltage. The switch driver is configured to receive the back-EMF voltage and the source voltage. The switch driver provides a control signal to a control terminal of the switch. The control signal has a frequency. The frequency is used to control an amount of the synchronous rectification switching. Accordingly, the frequency reduces a dissipated power associated with the synchronous rectification switching.
摘要翻译： 在一个实施例中，本发明包括一个包括开关和开关驱动器的电路。 开关配置为提供反电动势电压的同步整流开关。 同步整流开关产生源电压。 开关驱动器被配置为接收反电动势电压和源电压。 开关驱动器向开关的控制端提供控制信号。 控制信号具有频率。 该频率用于控制同步整流切换的量。 因此，频率降低与同步整流切换相关联的耗散功率。
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公开(公告)号：US07205744B1
公开(公告)日：2007-04-17
申请号：US11482560
申请日：2006-07-07
申请人： Foo Leng Leong , Cheng Yong Teoh , Siew Yong Chui
发明人： Foo Leng Leong , Cheng Yong Teoh , Siew Yong Chui
IPC分类号： G05B23/02
CPC分类号： H02P6/182
摘要： In a method for measuring motor speed and position by detecting the back EMF generated during pole-pair interactions, a separate respective duration of a power phase suppression signal, that is set during back EMF detection, is stored in memory for each respective pole. The separate respective duration values are determined during a calibration phase by iteratively lengthening each respective duration one unit at a time (up to a maximum value) until no part of the respective back EMF signal occurs outside the suppression signal duration, and those values are stored. During operation, the approach of a pole-pair interaction may be determined from the electrical cycle of the power supply, and then the stored duration value is used to control the state of the suppression signal.
摘要翻译： 在用于通过检测在极对相互作用期间产生的反电动势来测量电动机速度和位置的方法中，在反电动势检测期间设置的功率相位抑制信号的单独的相应持续时间被存储在每个相应极的存储器中。 在校准阶段期间通过每次相应地延长一个单位一个单位（最多达到最大值），直到相应的反EMF信号的部分不在抑制信号持续时间之外发生，并且这些值被存储 。 在运行期间，可以从电源的电周期确定极对相互作用的方法，然后使用存储的持续时间值来控制抑制信号的状态。
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公开(公告)号：US07098621B1
公开(公告)日：2006-08-29
申请号：US11104683
申请日：2005-04-12
申请人： Foo Leng Leong , Cheng Yong Teoh , Siew Yong Chui
发明人： Foo Leng Leong , Cheng Yong Teoh , Siew Yong Chui
IPC分类号： G05B23/02
CPC分类号： H02P6/182
摘要： In a method for measuring motor speed and position by detecting the back EMF generated during pole-pair interactions, a separate respective duration of a power phase suppression signal, that is set during back EMF detection, is stored in memory for each respective pole. The separate respective duration values are determined during a calibration phase by iteratively lengthening each respective duration one unit at a time (up to a maximum value) until no part of the respective back EMF signal occurs outside the suppression signal duration, and those values are stored. During operation, the approach of a pole-pair interaction may be determined from the electrical cycle of the power supply, and then the stored duration value is used to control the state of the suppression signal.
摘要翻译： 在用于通过检测在极对相互作用期间产生的反电动势来测量电动机速度和位置的方法中，在反电动势检测期间设置的功率相位抑制信号的单独的相应持续时间被存储在每个相应极的存储器中。 在校准阶段期间通过每次相应地延长一个单位一个单位（最多达到最大值），直到相应的反EMF信号的部分不在抑制信号持续时间之外发生，并且这些值被存储 。 在运行期间，可以从电源的电周期确定极对相互作用的方法，然后使用存储的持续时间值来控制抑制信号的状态。
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6.发明授权公开(公告)号：US08791664B2
公开(公告)日：2014-07-29
申请号：US13010928
申请日：2011-01-21
IPC分类号： H02P27/00
摘要： A system includes a target speed module and a pulse-width modulation (PWM) control module. The target speed module is configured to provide a first waveform based on a first speed setting for a motor. A start of a first cycle of the first waveform corresponds to at least one of a first current or a first voltage. The PWM control module is configured to shift a phase of the first waveform by a torque angle adjustment value to generate a second waveform. A start of a first cycle of the second waveform corresponds to at least one of a second voltage or a second current. The second voltage is greater than the first voltage, and the second current is greater than the first current. The PWM control module is configured to control the motor based on the second waveform.
摘要翻译： 系统包括目标速度模块和脉冲宽度调制（PWM）控制模块。 目标速度模块被配置为基于用于电动机的第一速度设置来提供第一波形。 第一波形的第一周期的开始对应于第一电流或第一电压中的至少一个。 PWM控制模块被配置为将第一波形的相位移位一个转矩角度调整值以产生第二波形。 第二波形的第一周期的开始对应于第二电压或第二电流中的至少一个。 第二电压大于第一电压，第二电流大于第一电流。 PWM控制模块被配置为基于第二波形来控制电动机。
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7.发明授权Apparatus and method for controlling speed of a fan via a first control module connected by a cable and/or conductors between a motor and a second control module 有权用于通过第一控制模块控制风扇的装置和方法，所述第一控制模块通过电缆和/或电动机和第二控制模块之间的导体连接公开(公告)号：US08807956B2
公开(公告)日：2014-08-19
申请号：US13233593
申请日：2011-09-15
CPC分类号： F04D27/004 , F04D13/0693 , F04D15/0094 , F04D25/0693 , F04D27/001 , H02K29/12 , H02K29/14 , H02P6/08 , H02P6/182 , H02P29/032
摘要： A fan system includes a motor control module external to a motor housing of a fan assembly. The motor control module includes a speed control module. The fan assembly includes a fan and the motor housing. One or more first conductors are configured to connect the motor control module to a motor in the motor housing. One or more second conductors are configured to connect the motor control module to a host device control module. The host device control module is separate from the motor control module and is configured to generate a control signal. The speed control module is configured to control speed of the fan based on the control signal.
摘要翻译： 风扇系统包括在风扇组件的电动机壳体外部的电动机控制模块。 电动机控制模块包括速度控制模块。 风扇组件包括风扇和电动机壳体。 一个或多个第一导体被配置为将电动机控制模块连接到电动机壳体中的电动机。 一个或多个第二导体被配置为将电动机控制模块连接到主机设备控制模块。 主机设备控制模块与电机控制模块分离，并被配置为产生控制信号。 速度控制模块被配置为基于控制信号来控制风扇的速度。
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8.发明授权Speed control systems and methods for decreasing power consumption in rotating storage devices 有权用于降低旋转存储设备功耗的速度控制系统和方法公开(公告)号：US08638519B1
公开(公告)日：2014-01-28
申请号：US13602879
申请日：2012-09-04
申请人： Edy Susanto , Foo Leng Leong , Cheng Yong Teoh
发明人： Edy Susanto , Foo Leng Leong , Cheng Yong Teoh
IPC分类号： G11B19/26
摘要： A system including a monitoring module configured to monitor whether, during a first predetermined period, at least one of a read operation, a write operation, or a seek operation is performed on a platter of a storage device in response to the platter of the storage device rotating at a first speed. A speed control module is configured to rotate the platter of the storage device at a second speed in response to none of the read operation, the write operation, or the seek operation being performed on the platter of the storage device during the first predetermined period. The second speed is (i) less than the first speed, and (ii) greater than zero. None of the read operation, the write operation, or the seek operation is performed on the platter of the storage device in response to the platter of the storage device rotating at the second speed.
摘要翻译： 一种系统，包括监视模块，该监视模块被配置为响应于所述存储器的盘片，在第一预定时段期间是否在存储设备的盘片上执行读取操作，写入操作或寻找操作中的至少一个 装置以第一速度旋转。 速度控制模块被配置为响应于在第一预定时段期间在存储设备的盘上执行的任何读取操作，写入操作或搜索操作都不以第二速度旋转存储设备的盘片。 第二速度是（i）小于第一速度，和（ii）大于零。 响应于以第二速度旋转的存储装置的盘片，在存储装置的盘片上不执行读取操作，写入操作或搜索操作。
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公开(公告)号：US08405330B2
公开(公告)日：2013-03-26
申请号：US13426056
申请日：2012-03-21
申请人： Foo Leng Leong , Edy Susanto , Cheng Yong Teoh
发明人： Foo Leng Leong , Edy Susanto , Cheng Yong Teoh
IPC分类号： H02P6/04
CPC分类号： H02P29/0241 , G01R31/343
摘要： A control system includes a position control module, a power control module, and a diagnostic module. The position control module applies a driving current for positioning a rotor of a motor at one of first and second positions. The power control module applies a first voltage to one of first and second phases of the motor to generate a first current after the position control module applies the driving current to position the rotor at the first position. The power control module applies a second voltage to one of the first and second phases to generate a second current after the position control module applies the driving current to position the rotor at the second position. The diagnostic module determines when the rotor is restricted from rotating based on the first and second currents.
摘要翻译： 控制系统包括位置控制模块，功率控制模块和诊断模块。 位置控制模块施加用于将马达的转子定位在第一和第二位置中的一个位置的驱动电流。 功率控制模块在位置控制模块施加驱动电流以将转子定位在第一位置之后，向电动机的第一和第二相之一施加第一电压以产生第一电流。 功率控制模块将第二电压施加到第一和第二相中的一个，以在位置控制模块施加驱动电流以将转子定位在第二位置之后产生第二电流。 诊断模块基于第一和第二电流确定转子何时被限制旋转。
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10.发明授权Speed control systems and methods for decreasing power consumption in rotating storage devices 有权用于降低旋转存储设备功耗的速度控制系统和方法公开(公告)号：US08259407B1
公开(公告)日：2012-09-04
申请号：US13190333
申请日：2011-07-25
申请人： Edy Susanto , Foo Leng Leong , Cheng Yong Teoh
发明人： Edy Susanto , Foo Leng Leong , Cheng Yong Teoh
IPC分类号： G11B19/26
摘要： A system for controlling a rotational speed of a platter in a storage device. The system includes a mode selection module configured to select a mode operation for the storage device, in which the mode of operation includes at least i) a read/write mode in which data is to be read from or written to the platter, ii) a standby mode during in which data is not to be read from or written to the platter, or iii) a shutdown mode. The system further includes a speed control module configured to control the rotational speed of the platter based on the selected mode of operation for the storage device.
摘要翻译： 一种用于控制存储装置中的盘片的转速的系统。 所述系统包括：模式选择模块，被配置为选择所述存储设备的模式操作，其中所述操作模式至少包括i）读/写模式，其中数据将被读取或写入所述盘，ii） 在其中数据不被读取或写入到盘片的待机模式，或iii）关闭模式。 该系统还包括速度控制模块，该速度控制模块被配置为基于存储设备的所选择的操作模式来控制盘片的转速。
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