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：US06316926B1

公开(公告)日：2001-11-13

申请号：US09575334

申请日：2000-05-19

申请人： Alessandro Savo ,  Salvatore Portaluri ,  Pierandrea Savo ,  Giuseppe Luciano

发明人： Alessandro Savo ,  Salvatore Portaluri ,  Pierandrea Savo ,  Giuseppe Luciano

IPC分类号： G05F140

CPC分类号： H02M1/36 ,  Y10S323/901

摘要： A switching regulator having a switching element, a control loop for varying a duty cycle of the switching element according to a difference between a switching regulator output electric quantity and a target output electric quantity, and a digital soft start-up circuit for digitally controlling the duty cycle of the switching element, independently from said difference, in a start-up phase of the switching regulator operation.

摘要翻译： 具有开关元件的开关调节器，用于根据开关调节器输出电量与目标输出电量之间的差异来改变开关元件的占空比的控制回路和用于数字控制所述开关元件的数字软启动电路 独立于所述差值的开关元件的占空比在开关调节器操作的启动阶段。

公开(公告)号：US6121802A

公开(公告)日：2000-09-19

申请号：US260878

申请日：1999-03-02

申请人： Giuseppe Luciano ,  Luca Schillaci

发明人： Giuseppe Luciano ,  Luca Schillaci

IPC分类号： H03K4/06

CPC分类号： H03K4/06

摘要： A circuit and a method generate first and second triangular waveforms opposite in phase to each other. The circuit includes a capacitor having a first plate coupled to a first output at which the first triangular waveform is produced and a second plate coupled to a second output at which the second triangular waveform is produced. First and second switches are coupled between a first voltage reference and the first and second plates, respectively, of the capacitor. The circuit also includes a controller having a first output coupled to the control terminal of the first switch and a second output coupled to a controlled terminal of a second switch. The controller is structured to produce at the first and second outputs respective first and second control signals in opposition to each other and thereby control the first and second switches in opposition to each other. The circuit may include a differential stage having first and second inputs and an output with the first input being coupled to a second voltage reference and the output being coupled to the capacitor. A first resistor may be coupled between the first output of the circuit and the second input of the differential stage and a second resistor may be coupled between the second output of the circuit and the second input of the differential stage. Such a differential stage and resistors insure that the average value of the triangular waveforms is equal to the second voltage reference.

摘要翻译： 电路和方法产生彼此相位相反的第一和第二三角波形。 电路包括电容器，其具有耦合到产生第一三角形波形的第一输出的第一板和耦合到产生第二三角形波形的第二输出的第二板。 第一和第二开关分别耦合在第一参考电压和电容器的第一和第二板之间。 电路还包括具有耦合到第一开关的控制端的第一输出和耦合到第二开关的受控端的第二输出的控制器。 控制器被构造成在第一和第二输出处产生彼此相对的相应的第一和第二控制信号，从而彼此相对地控制第一和第二开关。 电路可以包括具有第一和第二输入的差分级和具有第一输入的输出耦合到第二参考电压，并且输出耦合到电容器。 第一电阻器可以耦合在电路的第一输出端和差分级的第二输入端之间，并且第二电阻器可以耦合在电路的第二输出端和差分级的第二输入端之间。 这种差分级和电阻器确保三角波形的平均值等于第二参考电压。