公开(公告)号：US06320439B1

公开(公告)日：2001-11-20

申请号：US09657436

申请日：2000-09-07

申请人： Luigi Eugenio Garbelli ,  Giuseppe Luciano ,  Salvatore Portaluri

发明人： Luigi Eugenio Garbelli ,  Giuseppe Luciano ,  Salvatore Portaluri

IPC分类号： H03K302

CPC分类号： G01R31/40 ,  G05F1/468

摘要： The monitoring of multiple supply voltages of an integrated circuit is done using a single external capacitor connected to a pin of the integrated circuit. Part of the multiple supply voltages are externally generated and part are internally generated. The internally generated supply voltages may include different voltages with different signs. A logic signal indicating that all the supply voltages have reached pre-established values before enabling functioning of the integrated circuit is generated after an initial soft start phase of the turn-on process.

摘要翻译： 使用连接到集成电路引脚的单个外部电容器对集成电路的多个电源电压进行监控。 多个电源电压的一部分是外部产生的，部分内部产生。 内部产生的电源电压可以包括具有不同符号的不同电压。 指示在使能功能的集成电路之前所有电源电压达到预定值的逻辑信号在开启过程的初始软启动阶段之后产生。

公开(公告)号：US06392375B1

公开(公告)日：2002-05-21

申请号：US09542101

申请日：2000-04-04

申请人： Salvatore Portaluri ,  Alessandro Savo ,  Luigi Eugenio Garbelli ,  Giuseppe Luciano ,  Luca Schillaci

发明人： Salvatore Portaluri ,  Alessandro Savo ,  Luigi Eugenio Garbelli ,  Giuseppe Luciano ,  Luca Schillaci

IPC分类号： H02P100

CPC分类号： G11B5/4846 ,  G11B5/4813 ,  G11B5/5526 ,  G11B21/083 ,  H02P25/034

摘要： The method is for controlling a voice coil motor which drives a mechanical arm via a control circuit which sets the output nodes, to which the motor is connected, in a high impedance state for a certain time interval. The method and circuit detect the back electromotive force induced on the motor winding during the time interval, and deliver current pulses for driving the motor. The circuit compares the detected back electromotive force with a certain target value and regulates the amplitude of the driving current pulses as a function of the difference between the detected value of the back electromotive force and a voltage signal representing the desired speed of the arm, according to a pre-established function. A preferred embodiment includes such a function being a pre-established saturated linear characteristic with an offset value.

摘要翻译： 该方法用于控制音圈电动机，其经由控制电路驱动机械臂，该控制电路将电动机连接的输出节点设置在高阻抗状态下一段时间间隔。 该方法和电路在时间间隔内检测在电动机绕组上感应的反电动势，并传送用于驱动电动机的电流脉冲。 该电路将检测到的反电动势与某一目标值进行比较，并且将驱动电流脉冲的幅度作为反电动势的检测值与表示臂的期望速度的电压信号之间的差的函数进行比较，根据 到一个预先建立的功能。 优选实施例包括具有偏移值的预先建立的饱和线性特性的功能。

公开(公告)号：US06222751B1

公开(公告)日：2001-04-24

申请号：US09571354

申请日：2000-05-15

申请人： Salvatore Portaluri ,  Alessandro Savo ,  Maurizio Nessi ,  Luigi Eugenio Garbelli ,  Giorgio Sciacca

发明人： Salvatore Portaluri ,  Alessandro Savo ,  Maurizio Nessi ,  Luigi Eugenio Garbelli ,  Giorgio Sciacca

IPC分类号： H02M75387

CPC分类号： H03K17/166 ,  H02M7/53803

摘要： A driver circuit includes a half-bridge output stage including two transistors with a common terminal for connection as the driver output to a coil of a DC motor. Two amplifiers drive the transistors in the push-pull operation and two capacitors are connected between the driver output and one input of a respective amplifier to form feedback loops for controlling the output slew-rate. Two current generators are selectively connected to an input of either of the amplifiers through respective pairs of switches. A commutation sequencer turns on and off the switches according to a commutation program. Comparators are connected to the drive output for detecting predetermined output voltage conditions and providing the commutation sequencer with signals for conditioning the commutation program as a function of the detected voltage conditions.

摘要翻译： 驱动器电路包括半桥输出级，其包括具有用于连接的公共端子的两个晶体管，因为驱动器输出到直流电动机的线圈。 两个放大器在推挽操作中驱动晶体管，并且两个电容器连接在驱动器输出和相应放大器的一个输入端之间，以形成用于控制输出转换速率的反馈回路。 两个电流发生器通过相应的开关对选择性地连接到任一放大器的输入。 换向顺序器根据换向程序打开和关闭开关。 比较器连接到驱动输出端，用于检测预定的输出电压状况，并根据检测到的电压条件向换向定序器提供用于调节换向程序的信号。