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公开(公告)号:US07576939B2
公开(公告)日:2009-08-18
申请号:US11940521
申请日:2007-11-15
申请人: KianKeong Ooi , KeXiu Liu , Shuyu Cao , MingZhong Ding
发明人: KianKeong Ooi , KeXiu Liu , Shuyu Cao , MingZhong Ding
IPC分类号: G11B21/02
CPC分类号: H02P6/182 , G11B5/022 , G11B5/5526 , G11B5/59605
摘要: A terminal voltage of an actuator motor is measured while the actuator motor is in a high impedance state. An internal voltage of the actuator motor is measured, and a back-EMF voltage of the actuator motor is estimated in response to the terminal voltage of the actuator motor and the internal voltage of the actuator motor. A drive current supplied to the actuator motor is controlled in response to the estimated back-EMF.
摘要翻译: 在执行器电动机处于高阻抗状态的同时测量致动器电动机的端子电压。 测量致动器电动机的内部电压,并且响应于致动器电动机的端子电压和致动器电动机的内部电压来估计致动器电动机的反电动势电压。 响应于估计的反电动势来控制提供给致动器电动机的驱动电流。
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公开(公告)号:US20090128946A1
公开(公告)日:2009-05-21
申请号:US11940521
申请日:2007-11-15
申请人: KianKeong Ooi , KeXiu Liu , Shuyu Cao , MingZhong Ding
发明人: KianKeong Ooi , KeXiu Liu , Shuyu Cao , MingZhong Ding
CPC分类号: H02P6/182 , G11B5/022 , G11B5/5526 , G11B5/59605
摘要: A terminal voltage of an actuator motor is measured while the actuator motor is in a high impedance state. An internal voltage of the actuator motor is measured, and a back-EMF voltage of the actuator motor is estimated in response to the terminal voltage of the actuator motor and the internal voltage of the actuator motor. A drive current supplied to the actuator motor is controlled in response to the estimated back-EMF.
摘要翻译: 在执行器电动机处于高阻抗状态的同时测量致动器电动机的端子电压。 测量致动器电动机的内部电压,并且响应于致动器电动机的端子电压和致动器电动机的内部电压来估计致动器电动机的反电动势电压。 响应于估计的反电动势来控制提供给致动器电动机的驱动电流。
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3.
公开(公告)号:US20080262658A1
公开(公告)日:2008-10-23
申请号:US11736179
申请日:2007-04-17
申请人: Mingzhong Ding , KianKeong Ooi , KeXiu Liu , YiLei Wu , ShuYu Cao
发明人: Mingzhong Ding , KianKeong Ooi , KeXiu Liu , YiLei Wu , ShuYu Cao
IPC分类号: G11B7/00
CPC分类号: G11B19/042
摘要: A shock detection circuit housed in an electronic device includes an output shock signal that is indicative of vibration amplitude. To compensate for vibrations that are experienced by the electronic device, the output shock signal is analyzed. The analysis of the output shock signal allows a vibration frequency of the output shock signal to be identified and used in vibration compensation.
摘要翻译: 容纳在电子设备中的冲击检测电路包括表示振动幅度的输出冲击信号。 为了补偿电子设备所经历的振动,分析输出冲击信号。 输出冲击信号的分析允许识别输出冲击信号的振动频率并用于振动补偿。
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4.
公开(公告)号:US07596795B2
公开(公告)日:2009-09-29
申请号:US11736179
申请日:2007-04-17
申请人: Mingzhong Ding , KianKeong Ooi , KeXiu Liu , YiLei Wu , ShuYu Cao
发明人: Mingzhong Ding , KianKeong Ooi , KeXiu Liu , YiLei Wu , ShuYu Cao
IPC分类号: G11B33/14 , G11B33/08 , G05B21/00 , G05B13/00 , G05B15/00 , G01M1/38 , G05D23/00 , G05B11/01 , G11B17/00 , G11B21/16
CPC分类号: G11B19/042
摘要: A shock detection circuit housed in an electronic device includes an output shock signal that is indicative of vibration amplitude. To compensate for vibrations that are experienced by the electronic device, the output shock signal is analyzed. The analysis of the output shock signal allows a vibration frequency of the output shock signal to be identified and used in vibration compensation.
摘要翻译: 容纳在电子设备中的冲击检测电路包括表示振动幅度的输出冲击信号。 为了补偿电子设备所经历的振动,分析输出冲击信号。 输出冲击信号的分析允许识别输出冲击信号的振动频率并用于振动补偿。
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公开(公告)号:US20070013337A1
公开(公告)日:2007-01-18
申请号:US11170332
申请日:2005-06-29
申请人: KeXiu Liu , MingZhong Ding , KianKeong Ooi , QingWei Jia
发明人: KeXiu Liu , MingZhong Ding , KianKeong Ooi , QingWei Jia
IPC分类号: G05B5/01
CPC分类号: G11B5/59622 , G11B5/5526
摘要: A voltage-mode VCM controller is provided comprising an Infinite Impulse Response (IIR) filter that modifies a servo control voltage signal to a voltage driver in response to an adaptive compensator that configures the IIR filter in relation to an observed VCM velocity and an actual VCM velocity. An associated method is provided comprising modeling a velocity response of a VCM to a voltage input; inputting the observed velocity and an actual VCM velocity to an adaptive compensator that computes a gain and a VCM response pole frequency in relation to the VCM resistance and inductance; configuring an IIR filter in relation to the computed gain and pole frequency values; and using the IIR filter to modify a voltage command from a servo controller to a power driver.
摘要翻译: 提供了一种电压模式VCM控制器,其包括无限脉冲响应(IIR)滤波器,其响应于相对于观察到的VCM速度和实际VCM配置IIR滤波器的自适应补偿器,将伺服控制电压信号修改为电压驱动器 速度。 提供了一种相关联的方法,包括将VCM的速度响应建模成电压输入; 将观测速度和实际VCM速度输入到相对于VCM电阻和电感计算增益和VCM响应极点频率的自适应补偿器; 配置相对于计算出的增益和极点频率值的IIR滤波器; 并使用IIR滤波器修改从伺服控制器到功率驱动器的电压指令。
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公开(公告)号:US07199964B2
公开(公告)日:2007-04-03
申请号:US11170332
申请日:2005-06-29
申请人: KeXiu Liu , MingZhong Ding , KianKeong Ooi , QingWei Jia
发明人: KeXiu Liu , MingZhong Ding , KianKeong Ooi , QingWei Jia
IPC分类号: G11B21/02
CPC分类号: G11B5/59622 , G11B5/5526
摘要: A voltage-mode VCM controller is provided comprising an Infinite Impulse Response (IIR) filter that modifies a servo control voltage signal to a voltage driver in response to an adaptive compensator that configures the IIR filter in relation to an observed VCM velocity and an actual VCM velocity. An associated method is provided comprising modeling a velocity response of a VCM to a voltage input; inputting the observed velocity and an actual VCM velocity to an adaptive compensator that computes a gain and a VCM response pole frequency in relation to the VCM resistance and inductance; configuring an IIR filter in relation to the computed gain and pole frequency values; and using the IIR filter to modify a voltage command from a servo controller to a power driver.
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公开(公告)号:US07595957B2
公开(公告)日:2009-09-29
申请号:US11771363
申请日:2007-06-29
申请人: KeXiu Liu , JianGuo Zhou , MingZhong Ding , KianKeong Ooi , WenJun Cao
发明人: KeXiu Liu , JianGuo Zhou , MingZhong Ding , KianKeong Ooi , WenJun Cao
IPC分类号: G11B5/596
CPC分类号: G11B5/5547
摘要: Apparatus and related methods are described for adjusting servo gain. In an exemplary apparatus, a circuit determines a bias force error that occurs between an estimated bias force and an actual bias force on an actuator during movement by a servo motor. The circuit adjusts a servo gain in response to the bias force error, and regulates movement of the actuator by the servo motor in response to the servo gain.
摘要翻译: 描述了用于调整伺服增益的装置和相关方法。 在示例性装置中,电路确定在由伺服电动机移动期间在估计的偏压力和致动器上的实际偏置力之间发生的偏压力误差。 该电路响应于偏压力误差调整伺服增益,并响应于伺服增益来调节伺服电机对致动器的运动。
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公开(公告)号:US20090003146A1
公开(公告)日:2009-01-01
申请号:US11771363
申请日:2007-06-29
申请人: KeXiu Liu , JianGuo Zhou , MingZhong Ding , KianKeong Ooi , WenJun Cao
发明人: KeXiu Liu , JianGuo Zhou , MingZhong Ding , KianKeong Ooi , WenJun Cao
IPC分类号: G11B21/00
CPC分类号: G11B5/5547
摘要: Apparatus and related methods are described for adjusting servo gain. In an exemplary apparatus, a circuit determines a bias force error that occurs between an estimated bias force and an actual bias force on an actuator during movement by a servo motor. The circuit adjusts a servo gain in response to the bias force error, and regulates movement of the actuator by the servo motor in response to the servo gain.
摘要翻译: 描述了用于调整伺服增益的装置和相关方法。 在示例性装置中,电路确定在由伺服电动机移动期间在估计的偏压力和致动器上的实际偏置力之间发生的偏压力误差。 该电路响应于偏压力误差调整伺服增益,并响应于伺服增益来调节伺服电机对致动器的运动。
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公开(公告)号:US06710965B2
公开(公告)日:2004-03-23
申请号:US10055110
申请日:2002-01-22
申请人: Mingzhong Ding , KeXiu Liu , KianKeong Ooi
发明人: Mingzhong Ding , KeXiu Liu , KianKeong Ooi
IPC分类号: G11B5596
CPC分类号: G11B5/5556 , G11B5/59622 , G11B7/0941 , G11B21/085 , G11B21/106 , G11B33/08
摘要: A filter for attenuating a resonance mode without substantial phase margin loss. The filter comprises a transfer function having an additional pole, such that the phase of the input signal is advanced. The phase-advanced filter substantially attenuates all frequencies above a selected center frequency while avoiding substantial phase margin loss.
摘要翻译: 用于衰减谐振模式而没有实质相位裕度损失的滤波器。 滤波器包括具有附加极点的传递函数,使得输入信号的相位提前。 相位超前滤波器基本上衰减所选择的中心频率以上的所有频率,同时避免实质的相位裕度损失。
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