公开(公告)号：EP1376357A2

公开(公告)日：2004-01-02

申请号：EP03253398.6

申请日：2003-05-30

Applicant: STMicroelectronics, Inc.

Inventor： Cerato, Sandro ,  Salina, Alberto ,  Pedrazzini, Giorgio

IPC: G06F11/00 ,  H02P6/00

CPC classification number: H02P6/34 ,  Y10T29/49004

Abstract: A multi-chip system in which at least one of the chips includes a register for storing a value indicating a performance parameter. The value is called a device signature. After system assembly, the value can be obtained by a companion chip and used to automatically or semi-automatically fine tune the companion chip to the specific parameters of the at least one chip.

Abstract translation: 一种多芯片系统，其中至少一个芯片包括用于存储指示性能参数的值的寄存器。 该值称为设备签名。 在系统组装之后，可以通过伴随芯片获得该值，并用于将伴随芯片自动或半自动微调至至少一个芯片的特定参数。 一种多芯片系统，其中至少一个芯片包括用于存储指示性能参数的值的寄存器。 该值称为设备签名。 在系统组装之后，可以通过伴随芯片获得该值，并用于将伴随芯片自动或半自动微调至至少一个芯片的特定参数。

公开(公告)号：EP1437639A3

公开(公告)日：2006-09-13

申请号：EP04250026.4

申请日：2004-01-06

Applicant: STMicroelectronics, Inc.

Inventor： Pedrazzini, Giorgio ,  Lasalandra, Ernesto ,  Vigna, Bendetto

IPC: G06F1/32

CPC classification number: G06F1/3203

Abstract: An electronic device includes a motion sensitive power switching integrated circuit, which, in turn, includes a power switch connected between an input and an output, and a MEMS inertial sensing switch movable from a first position to a second position based upon motion thereof. The motion sensitive power switching integrated circuit also includes a detector operating the power switch to supply power to the output from the input based upon the MEMS inertial sensing switch moving from the first position to the second position.
The first and second positions may be, respectively, a normally open position and a closed position. The device may be unpowered until the MEMS inertial sensing switch moves from the open to the closed position. The detector may generate a power on reset (POR) signal based upon the MEMS inertial sensing switch moving from the open to the closed position.

公开(公告)号：EP1118994A3

公开(公告)日：2003-05-21

申请号：EP00309423.2

申请日：2000-10-26

Applicant: STMicroelectronics, Inc.

Inventor： Pedrazzini, Giorgio

IPC: G11B21/12

CPC classification number: G11B5/6005 ,  G11B5/022 ,  G11B5/54 ,  G11B21/10 ,  G11B21/106 ,  G11B21/22

Abstract: Apparatus to control application of a drive current to a voice coil in a hard disk drive system modulates a periodic waveform between either a reference level and a signal associated with a stored back electromotive force (BEMF) in the voice coil. The drive current is applied to the voice coil during periods of time when the periodic waveform is modulated by the signal associated with the stored BEMF. The amplitude and duration of the drive current correspondingly decreases as the BEMF in he voice coil decreases. Thus, the voice coil is controlled based on its BEMF and is provided with decreasing power to move a head mechanism or to form a ramp assembly.

Abstract translation: 用于控制对硬盘驱动器系统中的音圈的驱动电流的施加的装置调制参考电平和与音圈中存储的反电动势（BEMF）相关联的信号之间的周期性波形。 在通过与存储的BEMF相关联的信号调制周期波形的时间段期间，驱动电流被施加到音圈。 驱动电流的幅度和持续时间相应地随着音圈中的BEMF的减小而减小。 因此，音圈基于其BEMF被控制，并且具有减小的功率以移动头部机构或形成斜坡组件。

公开(公告)号：EP1118994A2

公开(公告)日：2001-07-25

申请号：EP00309423.2

申请日：2000-10-26

Applicant: STMicroelectronics, Inc.

Inventor： Pedrazzini, Giorgio

IPC: G11B21/12

CPC classification number: G11B5/6005 ,  G11B5/022 ,  G11B5/54 ,  G11B21/10 ,  G11B21/106 ,  G11B21/22

Abstract: Apparatus to control application of a drive current to a voice coil in a hard disk drive system modulates a periodic waveform between either a reference level and a signal associated with a stored back electromotive force (BEMF) in the voice coil. The drive current is applied to the voice coil during periods of time when the periodic waveform is modulated by the signal associated with the stored BEMF. The amplitude and duration of the drive current correspondingly decreases as the BEMF in he voice coil decreases. Thus, the voice coil is controlled based on its BEMF and is provided with decreasing power to move a head mechanism or to form a ramp assembly.

公开(公告)号：EP1437639A2

公开(公告)日：2004-07-14

申请号：EP04250026.4

申请日：2004-01-06

Applicant: STMicroelectronics, Inc.

Inventor： Pedrazzini, Giorgio ,  Lasalandra, Ernesto ,  Vigna, Bendetto

IPC: G06F1/32

CPC classification number: G06F1/3203

Abstract: An electronic device includes a motion sensitive power switching integrated circuit, which, in turn, includes a power switch connected between an input and an output, and a MEMS inertial sensing switch movable from a first position to a second position based upon motion thereof. The motion sensitive power switching integrated circuit also includes a detector operating the power switch to supply power to the output from the input based upon the MEMS inertial sensing switch moving from the first position to the second position.
The first and second positions may be, respectively, a normally open position and a closed position. The device may be unpowered until the MEMS inertial sensing switch moves from the open to the closed position. The detector may generate a power on reset (POR) signal based upon the MEMS inertial sensing switch moving from the open to the closed position.

Abstract translation: 该电路（22）具有输入（24）连接到连接到负载电路（30），以由所述电源供电的电源（26）和在输出端（28）。 微机电（MEM）的惯性传感开关（32A-32C）是从打开位置到闭合位置可动。 检测器（34）操作的电源开关，以将电力提供给基于所述开关的运动的输出。 因此独立claimsoft被包括用于在电源开关的输出连接到与基于运动选择性地供电电路的方法。

公开(公告)号：EP1376357A3

公开(公告)日：2004-01-07

申请号：EP03253398.6

申请日：2003-05-30

Applicant: STMicroelectronics, Inc.

Inventor： Cerato, Sandro ,  Salina, Alberto ,  Pedrazzini, Giorgio

IPC: G06F11/00 ,  H02P6/00

CPC classification number: H02P6/34 ,  Y10T29/49004

Abstract: A multi-chip system in which at least one of the chips includes a register for storing a value indicating a performance parameter. The value is called a device signature. After system assembly, the value can be obtained by a companion chip and used to automatically or semi-automatically fine tune the companion chip to the specific parameters of the at least one chip.

公开(公告)号：EP1303036A2

公开(公告)日：2003-04-16

申请号：EP02257137.6

申请日：2002-10-15

Applicant: STMicroelectronics, Inc.

Inventor： Pedrazzini, Giorgio ,  Fong, Hin Sing ,  Ravishanker, Krishnamoorthy

IPC: H02P7/00

CPC classification number: H02P25/034

Abstract: A multi-mode motor controller architecture includes a motor, an integrated circuit controller, and an integrated circuit driver circuit. The integrated circuit controller includes a pulse generator, a DAC, an ADC, and a digital compensator circuit. The integrated circuit driver circuit is in communication with the controller and includes an error amplifier, first and second output amplifiers for driving the motor, and a sense amplifier. The motor controller architecture is configurable to operate in a linear mode, a pulsed mode, or a switchable linear/pulsed mode. The controller architecture can be implemented with external compensation circuitry, such as a resistor-capacitor circuit, or with the digital compensation circuitry located within the controller integrated circuit.

Abstract translation: 多模式电动机控制器架构包括电动机，集成电路控制器和集成电路驱动器电路。 集成电路控制器包括脉冲发生器，DAC，ADC和数字补偿电路。 集成电路驱动器电路与控制器通信，并且包括误差放大器，用于驱动电动机的第一和第二输出放大器以及读出放大器。 电机控制器架构可配置为在线性模式，脉冲模式或可切换线性/脉冲模式下工作。 控制器架构可以用外部补偿电路（如电阻 - 电容电路）或位于控制器集成电路内的数字补偿电路来实现。