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1. 再颁专利

USRE42113E1 Control system of motors for rotating a disk and for positioning heads of a mass storage disk device 有权
标题翻译：用于旋转盘和用于定位大容量存储盘装置的头的电动机的控制系统
公开(公告)号：USRE42113E1
公开(公告)日：2011-02-08
申请号：US12708169
申请日：2010-02-18
申请人： Giuseppe Maiocchi , Michele Boscolo , Roberto Bardelli
发明人： Giuseppe Maiocchi , Michele Boscolo , Roberto Bardelli
IPC分类号： G05B11/28
CPC分类号： G11B5/5526 , G11B19/28
摘要： An integrated control and power driving system moves a read/write head carrying arm over the surface of a disk. The integrated control and power driving system is applicable to a spindle motor, a mass storage disk drive and a voice-coil motor, for example, and includes a first chip and a second chip. The first chip integrates the output power stages driving the motors, and has an interface for outputting feedback signals representing functioning conditions of the voice-coil motor and of the spindle motor, and for receiving digital control signals of the output power stages. The second chip integrates logic drive and control circuitries of the power stages and an interface for receiving the feedback signals output by the first chip, and for transmitting to the first chip the digital control signals.
摘要翻译：集成控制和电源驱动系统将读/写磁头承载臂移动到磁盘表面上。集成控制和电力驱动系统例如可应用于主轴电动机，大容量存储盘驱动器和音圈电动机，并且包括第一芯片和第二芯片。第一芯片集成了驱动电机的输出功率级，并且具有用于输出表示音圈电动机和主轴电动机的功能状况的反馈信号的接口，并且用于接收输出功率级的数字控制信号。第二芯片集成功率级的逻辑驱动和控制电路以及用于接收由第一芯片输出的反馈信号的接口，并且用于向第一芯片发送数字控制信号。

2. 发明申请

US20070296362A1 PREVENTION OF CONCURRENT PWM OR PSM COMMUTATIONS OF POWER SIGNALS DRIVING A VOICE COIL MOTOR (VCM) TO REDUCE S/N RATIO DEGRADATION OF LOW LEVEL SIGNAL LINES OF A R/W HEAD 有权
标题翻译：防止电力信号的并行PWM或PSM通信驱动语音线圈电机（VCM），以降低R / W头的低电平信号线的S / N比降低
公开(公告)号：US20070296362A1
公开(公告)日：2007-12-27
申请号：US11760185
申请日：2007-06-08
申请人： Giuseppe Maiocchi , Ezio Galbiati , Michele Boscolo Berto
发明人： Giuseppe Maiocchi , Ezio Galbiati , Michele Boscolo Berto
IPC分类号： H02P25/12 , H01R39/46
CPC分类号： G11B5/02 , G11B5/022 , G11B2005/001 , H02P25/034
摘要： A method of preventing concurrent or quasi-concurrent commutations of a pair of phase shift modulation (PSM) drive signals of an output bridge stage driving an electrical load includes establishing a threshold level of a programmed current level to be transmitted though the electrical load. The method also includes, if the programmed current level is lower than the threshold level, enhancing a time offset between commutation edges of the pair of PSM drive signals by a minimum time.
摘要翻译：一种防止驱动电负载的输出桥接级的一对相移调制（PSM）驱动信号的同时或准并行换向的方法包括建立通过电负载传输的编程电流电平的阈值电平。该方法还包括，如果编程的电流电平低于阈值电平，则将该对PSM驱动信号的换向边沿之间的时间偏移增加最小时间。

3. 发明申请

US20060034009A1 Method for estimating the resistance of a DC motor for positioning read/write heads of a hard disk 有权
公开(公告)号：US20060034009A1
公开(公告)日：2006-02-16
申请号：US10918659
申请日：2004-08-12
申请人： Giuseppe Maiocchi , Roberto Oboe , Federico Marcassa , Michele Boscolo
发明人： Giuseppe Maiocchi , Roberto Oboe , Federico Marcassa , Michele Boscolo
IPC分类号： G11B5/596
CPC分类号： G11B5/59627 , G11B5/5547
摘要： A method for estimating resistance of a DC motor for positioning read/write heads of a data storage disk is provided. The DC motor is controlled in an open-loop voltage mode through a motor controller input with a first signal for compensating positioning of the read/write heads onto the data storage disk. The first signal is generated based upon a position error signal representing a difference between a position of the read/write heads and a center of a track to be read. The method includes monitoring the first signal during a read operation of data being stored on the data storage disk, and estimating the resistance based upon spectral components of the first signal.

4. 发明授权

US07049781B2 Method for controlling a DC motor and relative open-loop voltage mode controller 有权
标题翻译：用于控制直流电动机和相对开环电压模式控制器的方法
公开(公告)号：US07049781B2
公开(公告)日：2006-05-23
申请号：US10918658
申请日：2004-08-12
申请人： Giuseppe Maiocchi , Roberto Oboe , Federico Marcassa
发明人： Giuseppe Maiocchi , Roberto Oboe , Federico Marcassa
IPC分类号： G05B11/42
CPC分类号： H02P7/28 , G11B5/5547
摘要： A method for controlling in an open-loop voltage mode a DC motor driven through a power amplifier includes generating a control voltage for the DC motor to be input to the power amplifier based upon a difference between an external command and a correction signal, and amplifying the control voltage for generating a replica of an output of the power amplifier. A model of the DC motor is defined based upon electrical parameters of the DC motor. The method further includes estimating current flowing in the DC motor based upon the replica of the output of the power amplifier and the model of the DC motor, and generating the correction signal proportional to the estimated current.
摘要翻译：用于以开环电压模式控制通过功率放大器驱动的直流电动机的方法包括：基于外部命令和校正信号之间的差异，产生要输入到功率放大器的直流电动机的控制电压，以及放大用于产生功率放大器的输出的副本的控制电压。基于直流电机的电气参数定义直流电动机的型号。该方法还包括基于功率放大器的输出和直流电动机的模型的副本估算直流电动机中的电流，并产生与估计电流成比例的校正信号。

5. 发明授权

US06566838B2 Fully digital control and drive combination IC with on-board DSP for disk mass storage device 有权
公开(公告)号：US06566838B2
公开(公告)日：2003-05-20
申请号：US09812715
申请日：2001-03-20
申请人： Giuseppe Maiocchi
发明人： Giuseppe Maiocchi
IPC分类号： G05B106
CPC分类号： G11B19/20 , G11B19/28 , G11B21/02
摘要： The device is for driving and controlling a rotation motor and a voice coil motor for a hard disk drive system that includes a disk and an arm carrying a read/write head to be positioned with respect thereto. A duty-cycle control loop including a current sensing circuit is connected to the voice coil motor, and an arm position control loop including a speed detection circuit is also connected to the voice coil motor. The duty-cycle control loop and the arm position control loop are digitally implemented by a DSP as a function of digital data representing a first analog signal generated by the current sensing circuit representative of current conducting in a winding of the voice coil motor, and a second analog signal generated by the speed detection circuit representative of an instant speed of the voice coil motor.

6. 发明授权

US08044619B2 Prevention of concurrent PWM or PSM commutations of power signals driving a voice coil motor (VCM) to reduce S/N ratio degradation of low level signal lines of a R/W head 有权
标题翻译：防止驱动音圈电机（VCM）的电源信号同时进行PWM或PSM换向，以降低R / W磁头低电平信号线的S / N比降低
公开(公告)号：US08044619B2
公开(公告)日：2011-10-25
申请号：US11760185
申请日：2007-06-08
申请人： Giuseppe Maiocchi , Ezio Galbiati , Michele Boscolo Berto
发明人： Giuseppe Maiocchi , Ezio Galbiati , Michele Boscolo Berto
IPC分类号： H02K5/00
CPC分类号： G11B5/02 , G11B5/022 , G11B2005/001 , H02P25/034
摘要： A method of preventing concurrent or quasi-concurrent commutations of a pair of phase shift modulation (PSM) drive signals of an output bridge stage driving an electrical load includes establishing a threshold level of a programmed current level to be transmitted though the electrical load. The method also includes, if the programmed current level is lower than the threshold level, enhancing a time offset between commutation edges of the pair of PSM drive signals by a minimum time.
摘要翻译：一种防止驱动电负载的输出桥接级的一对相移调制（PSM）驱动信号的同时或准并行换向的方法包括建立通过电负载传输的编程电流电平的阈值电平。该方法还包括，如果编程的电流电平低于阈值电平，则将该对PSM驱动信号的换向边沿之间的时间偏移增加最小时间。

7. 发明授权

US08018364B2 Control apparatus for a load supply device 有权
标题翻译：用于负载供应装置的控制装置
公开(公告)号：US08018364B2
公开(公告)日：2011-09-13
申请号：US12646813
申请日：2009-12-23
申请人： Giuseppe Maiocchi
发明人： Giuseppe Maiocchi
IPC分类号： H03M3/00
CPC分类号： H03M1/0845 , H03M1/822 , H03M3/324 , H03M3/506
摘要： A control apparatus for a supply device of a load, the supply device is of switching type and connected between a supply voltage and a reference voltage, the apparatus including a sigma-delta device having an input terminal at which is present a first digital signal and adapted to provide a pulse-density modulation signal at the output terminal; the sigma-delta device including a feedback circuit capable of sending to the input terminal of the sigma-delta device a second digital signal whose value depends on the value of the output signal, and the apparatus including a device capable of digitalizing the supply voltage and of providing a further digital signal. The feedback circuit includes a terminal capable of receiving the further digital signal, and the sigma-delta device having a gain such that the output digital signal is proportional to the inverse of the further digital signal.
摘要翻译：一种用于负载的供应装置的控制装置，所述供应装置是开关型的并且连接在电源电压和参考电压之间，所述装置包括具有输入端的Σ-Δ装置，所述输入端存在第一数字信号，适于在输出端提供脉冲密度调制信号; 所述Σ-Δ器件包括能够向Σ-Δ器件的输入端子发送其值取决于输出信号的值的第二数字信号的反馈电路，并且该器件包括能够对电源电压进行数字化的器件;以及提供另一个数字信号。反馈电路包括能够接收另外的数字信号的终端，以及具有增益的Σ-Δ装置，使得输出数字信号与另外的数字信号的反比成比例。

8. 发明申请

US20100156687A1 CONTROL APPARATUS FOR A LOAD SUPPLY DEVICE 有权
标题翻译：负载供电装置的控制装置
公开(公告)号：US20100156687A1
公开(公告)日：2010-06-24
申请号：US12646813
申请日：2009-12-23
申请人： Giuseppe Maiocchi
发明人： Giuseppe Maiocchi
IPC分类号： H03M3/00
CPC分类号： H03M1/0845 , H03M1/822 , H03M3/324 , H03M3/506
摘要： A control apparatus for a supply device of a load, the supply device is of switching type and connected between a supply voltage and a reference voltage, the apparatus including a sigma-delta device having an input terminal at which is present a first digital signal and adapted to provide a pulse-density modulation signal at the output terminal; the sigma-delta device including a feedback circuit capable of sending to the input terminal of the sigma-delta device a second digital signal whose value depends on the value of the output signal, and the apparatus including a device capable of digitalizing the supply voltage and of providing a further digital signal. The feedback circuit includes a terminal capable of receiving the further digital signal, and the sigma-delta device having a gain such that the output digital signal is proportional to the inverse of the further digital signal.
摘要翻译：一种用于负载的供应装置的控制装置，所述供应装置是开关型的并且连接在电源电压和参考电压之间，所述装置包括具有输入端的Σ-Δ装置，所述输入端存在第一数字信号，适于在输出端提供脉冲密度调制信号; 所述Σ-Δ器件包括能够向Σ-Δ器件的输入端子发送其值取决于输出信号的值的第二数字信号的反馈电路，并且该器件包括能够对电源电压进行数字化的器件;以及提供另一个数字信号。反馈电路包括能够接收另外的数字信号的终端，以及具有增益的Σ-Δ装置，使得输出数字信号与另外的数字信号的反比成比例。

9. 发明授权

US07215094B2 Method for sensing the back electromotive force induced in the winding of a voice coil motor 有权
标题翻译：用于感测在音圈电机的绕组中感应的反电动势的方法
公开(公告)号：US07215094B2
公开(公告)日：2007-05-08
申请号：US11381432
申请日：2006-05-03
申请人： Giuseppe Maiocchi , Ezio Galbiati , Michele Boscolo
发明人： Giuseppe Maiocchi , Ezio Galbiati , Michele Boscolo
IPC分类号： G11B21/02
CPC分类号： H02P6/182 , H02P25/034
摘要： A method for sensing a back electromotive force induced in a winding of a voice coil electro-mechanical actuator controlled in a discontinuous mode by alternating conduction phases to off-phases includes sensing voltage at terminals of the winding during an off-phase The winding is driven during a conduction phase immediately preceding the off-phase to invert, during a final portion of the conduction phase before entering an off-phase, a direction of flow of the current through the winding.
摘要翻译：用于感测在不连续模式下控制的音圈机电致动器的绕组中感应到的反电动势的方法是通过将导通相交替为非相，包括在断相期间感测绕组端子处的电压。绕组被驱动在紧邻异相之前的导通阶段期间，在进入截止相之前的导通阶段的最后部分期间，电流通过绕组的流动方向。

10. 发明申请

US20070031130A1 CONTROL SYSTEM OF MOTORS FOR ROTATING A DISK AND FOR POSITIONING HEADS OF A MASS STORAGE DISK DEVICE 有权
标题翻译：用于旋转磁盘和用于定位大容量存储盘设备的电机的控制系统
公开(公告)号：US20070031130A1
公开(公告)日：2007-02-08
申请号：US11462548
申请日：2006-08-04
申请人： Giuseppe Maiocchi , Michele Boscolo , Roberto Bardelli
发明人： Giuseppe Maiocchi , Michele Boscolo , Roberto Bardelli
IPC分类号： H02P7/06
CPC分类号： G11B5/5526 , G11B19/28
摘要： An integrated control and power driving system moves a read/write head carrying arm over the surface of a disk. The integrated control and power driving system is applicable to a spindle motor, a mass storage disk drive and a voice-coil motor, for example, and includes a first chip and a second chip. The first chip integrates the output power stages driving the motors, and has an interface for outputting feedback signals representing functioning conditions of the voice-coil motor and of the spindle motor, and for receiving digital control signals of the output power stages. The second chip integrates logic drive and control circuitries of the power stages and an interface for receiving the feedback signals output by the first chip, and for transmitting to the first chip the digital control signals
摘要翻译：集成控制和电源驱动系统将读/写磁头承载臂移动到磁盘表面上。集成控制和电力驱动系统例如可应用于主轴电动机，大容量存储盘驱动器和音圈电动机，并且包括第一芯片和第二芯片。第一芯片集成了驱动电机的输出功率级，并且具有用于输出表示音圈电动机和主轴电动机的功能状况的反馈信号的接口，并且用于接收输出功率级的数字控制信号。第二芯片集成功率级的逻辑驱动和控制电路以及用于接收由第一芯片输出的反馈信号的接口，并且用于向第一芯片发送数字控制信号

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