公开(公告)号：US20070164694A1

公开(公告)日：2007-07-19

申请号：US11567413

申请日：2006-12-06

申请人： Michele Boscolo Berto

发明人： Michele Boscolo Berto

IPC分类号： H02P7/06

CPC分类号： G11B19/28 ,  H02P25/034

摘要： A method to determine a back electromotive force induced in a coil of a voice-coil motor by its motion. The motor is driven in a discontinuous mode by commanding alternating on-phases and off-phases (tristate). A drive current flowing in the coil or a drive voltage on the coil at an end of an on-phase is sensed. An amplitude of a voltage disturbance induced in the coil by mutual induction between a permanent magnet of the voice-coil motor and the moving coil as a function of the sensed drive current or drive voltage is estimated. Voltage on the coil is sensed during a following off-phase with no current flowing in the coil. The back electromotive force induced in the moving coil is determined as a difference between the sensed voltage and the estimated amplitude of the voltage disturbance.

摘要翻译： 一种通过其运动来确定在音圈电动机的线圈中感应的反电动势的方法。 通过指令交替的同相和离相（三态），电机以不连续模式驱动。 感测在线圈中流动的驱动电流或在同相结束时线圈上的驱动电压。 通过音圈电动机的永久磁铁与动圈之间的感应，作为感测的驱动电流或驱动电压的函数，推定在线圈中感应出的电压扰动的幅度。 在随后的异相时感测线圈上的电压，没有电流流过线圈。 在动圈中感应的反电动势被确定为感测电压与电压扰动的估计振幅之差。

公开(公告)号：US06949906B2

公开(公告)日：2005-09-27

申请号：US10147347

申请日：2002-05-16

申请人： Michele Boscolo ,  Marco Viti ,  Ezio Galbiati

发明人： Michele Boscolo ,  Marco Viti ,  Ezio Galbiati

IPC分类号： H02P6/24 ,  G05B11/28

CPC分类号： H02P6/24

摘要： A driving circuit of a DC motor includes a control circuit for providing a control signal, and a motor drive circuit commanded by the control circuit for providing respective command signals for the switches of an output power stage connected to the DC motor. The output power stage is connected to a power supply line and drives the windings of the DC motor. The driving circuit prevents generation of voltage surges having a significant magnitude on the power supply line because the driving circuit has logic circuits for preventing any substantial inversion in the direction of current flow in the supply lines when the DC motor operates as a current generator.

摘要翻译： DC电动机的驱动电路包括用于提供控制信号的控制电路和由控制电路命令的用于为连接到DC电动机的输出功率级的开关提供相应命令信号的电动机驱动电路。 输出功率级连接到电源线并驱动直流电机的绕组。 驱动电路防止在电源线上产生具有显着量值的电压浪涌，因为驱动电路具有逻辑电路，用于当DC电动机作为电流发生器工作时，防止电源线中的电流方向发生任何实质的反转。

公开(公告)号：US20050189893A1

公开(公告)日：2005-09-01

申请号：US11058801

申请日：2005-02-16

申请人： Michele Boscolo ,  Paolo Capretta

发明人： Michele Boscolo ,  Paolo Capretta

IPC分类号： H02P5/00 ,  H02P25/02

CPC分类号： H02P25/034

摘要： A method for determining an effective resistance of a voltage controlled DC motor having a nominal resistance includes driving the DC motor with a signal so that the DC motor has a targeted acceleration, and sensing an effective acceleration of the DC motor. The effective resistance of the DC motor is determined as a function of the nominal resistance, the targeted acceleration and the effective acceleration.

摘要翻译： 用于确定具有标称电阻的电压控制DC电动机的有效电阻的方法包括用信号驱动DC电动机，使得DC电动机具有目标加速度，并且感测DC电动机的有效加速度。 直流电动机的有效电阻作为标称电阻，目标加速度和有效加速度的函数确定。

公开(公告)号：US06804131B2

公开(公告)日：2004-10-12

申请号：US10367665

申请日：2003-02-14

申请人： Ezio Galbiati ,  Michele Boscolo

发明人： Ezio Galbiati ,  Michele Boscolo

IPC分类号： H02M35387

CPC分类号： H02M7/53871 ,  H02P25/034

摘要： The present invention relates a Pulse Width Modulation (PWM)/linear driver for an electromagnetic load by a bridge circuit of the type having a signal input and a signal output and at least two conduction control inputs for driving a voice coil motor in a linear mode and in a pulse width modulation. The bridge circuit is driven by a PWM converter coupled to one of said two control inputs and by a linear amplifier coupled to the other of said two control inputs.

摘要翻译： 本发明涉及一种具有信号输入和信号输出类型的桥式电路的用于电磁负载的脉冲宽度调制（PWM）/线性驱动器，以及用于以线性模式驱动音圈电机的至少两个导通控制输入 并以脉冲宽度调制。 桥式电路由耦合到所述两个控制输入之一的PWM转换器和耦合到所述两个控制输入中的另一个的线性放大器驱动。

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。

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。

公开(公告)号：US07265592B2

公开(公告)日：2007-09-04

申请号：US11238411

申请日：2005-09-29

申请人： Michele Boscolo

发明人： Michele Boscolo

IPC分类号： H03B1/00

CPC分类号： H03K17/16

摘要： The present invention refers to a digital apparatus suitable for driving a load. The apparatus an input for receiving a voltage signal varied by an external disturbance and comprises means for sampling at least the external disturbance such as noise, and a driving circuit such as a pulse width modulator for driving the load with a suitable output voltage. The apparatus includes a control circuit suitable for generating digital commands representative of a desired output voltage of the apparatus. The apparatus also comprises digital correction circuit suitable for generating a correction signal on the basis of the difference between the value of the current sample and the value of the previous sample of at least the external disturbance. The output of the driving circuit is governed by the correction signal.

摘要翻译： 本发明涉及适用于驱动负载的数字装置。 该装置用于接收由外部干扰变化的电压信号的输入，并且包括用于至少采样诸如噪声的外部干扰的装置，以及用于以合适的输出电压驱动负载的诸如脉宽调制器的驱动电路。 该装置包括适于产生表示装置的期望输出电压的数字命令的控制电路。 该装置还包括数字校正电路，其适于基于当前样本的值与至少外部干扰的先前样本的值之间的差产生校正信号。 驱动电路的输出由校正信号控制。

公开(公告)号：US07164250B2

公开(公告)日：2007-01-16

申请号：US11051607

申请日：2005-02-04

申请人： Michele Boscolo ,  Paolo Capretta

发明人： Michele Boscolo ,  Paolo Capretta

IPC分类号： G05B11/01 ,  G11B15/18

CPC分类号： G11B5/5547 ,  H02P25/034

摘要： The driving voltage of the motor is incremented a quantity proportional to the speed of the motor according to a proportionality factor that is adjusted to compensate the back electromotive force. A method includes open-loop voltage control of a DC motor having a certain design speed constant, through a driving signal that is determined for imparting a certain acceleration to the motor and by generating a driving voltage of an output power stage to which the winding of the motor is connected as a function of the driving signal.

摘要翻译： 电动机的驱动电压根据调整后的电动势的比例因子增加与电动机转速成正比的数量，以补偿反电动势。 一种方法包括通过确定用于赋予电动机一定加速度的驱动信号和通过产生一个输出功率级的驱动电压而使具有一定设计速度常数的直流电动机的开环电压控制， 电机根据驱动信号连接。

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.

公开(公告)号：US06249101B1

公开(公告)日：2001-06-19

申请号：US09490960

申请日：2000-01-24

申请人： Marco Viti ,  Michele Boscolo

发明人： Marco Viti ,  Michele Boscolo

IPC分类号： G05B1101

CPC分类号： H02P6/22

摘要： A start-up routine is provided for a multiphase brushless DC motor having one or more rotor position sensors insufficient to provide for an angular resolution as high as the angular resolution of the synchronized driving system of the motor. The start-up routine includes setting at least an angular check zone having a certain arc length angularly correlated to the one or more rotor position sensors, assuming a certain initial rest position of the rotor, and exciting for fixed time intervals the phase windings in a sequence for rotating the rotor toward an angular position next to the initial position. This routing is performed in the desired direction while masking the signals from the one or more rotor position sensors for a preestablished masking time. The step of exciting for fixed time intervals is repeated until verifying that the excited phases are those commanding advancement of the rotor toward the angular check zone, or a change of state of the signals of the one or more rotor position sensors if the masking time has elapsed. The start-up routine further includes associating to each code of the position sensors a new angular check zone to be reached by repeating the sequence of operations starting from step of exciting.

摘要翻译： 为具有一个或多个转子位置传感器的多相无刷直流电动机提供启动例程，该转子位置传感器不足以提供高达电动机的同步驱动系统的角度分辨率的角度分辨率。 启动程序包括设置至少一个具有与一个或多个转子位置传感器成角度相关的一定弧长的角度检查区，假定转子的某个初始静止位置，并激励固定的时间间隔 用于使转子朝向初始位置旁边的角位置旋转的顺序。 为了预先建立的掩蔽时间，屏蔽来自一个或多个转子位置传感器的信号，沿所需方向执行该路由。 重复固定时间间隔的激励步骤，直到验证激励相是指向转角朝向角度检查区域前进的那些，或者如果掩蔽时间具有一个或多个转子位置传感器的信号的状态的改变 过去。 启动例程还包括通过重复从激励步骤开始的操作序列，将位置传感器的每个代码关联到要达到的新的角度检查区域。