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1.发明授权Conversion of a numeric command value in a constant frequency PWM drive signal for an electromagnetic load 失效在电磁负载的恒定频率PWM驱动信号中转换数字指令值公开(公告)号：US06594308B1
公开(公告)日：2003-07-15
申请号：US09451459
申请日：1999-11-30
IPC分类号： H03K908
CPC分类号： G06F1/025 , H02M7/53873
摘要： A method is provided for driving a load in a pulse width modulation (PWM) mode as a function of numeric command values having a predetermined number of N-bits. The method includes the step of incrementing by more than a unit the number of bits on which a selected command value is mapped, wherein a unit equals N-bits plus a plurality of additional bits. The N most significant bits of the selected command value are converted. The plurality of additional bits are decoded by generating a corresponding plurality of intermediate levels of variation in the duty cycle. Each intermediate level has a duration of half a clock period and produces a plurality of signals out of phase among each other by half a clock period. A driving PWM signal is generated by multiplexing the signals out of phase among each other by half a clock period, and carrying out logic combinations of these signals as a function of a most significant bit of the selected command value and as a function of the plurality of additional bits.
摘要翻译： 提供了一种用于以脉冲宽度调制（PWM）模式驱动负载作为具有预定数量N位的数字命令值的函数的方法。 该方法包括以多个单位递增所选择的命令值所映射的比特数的步骤，其中单元等于N比特加上多个附加比特。 所选命令值的N个最高有效位被转换。 通过在占空比中产生对应的多个中间级别的变化来解码多个附加位。 每个中间电平具有半个时钟周期的持续时间，并且在半个时钟周期之间产生多个相位异相的信号。 驱动PWM信号通过将信号相互相差半个时钟周期进行复用而产生，并且执行这些信号的逻辑组合作为所选命令值的最高有效位的函数，并且作为多个 的额外位。
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公开(公告)号：US06218707B1
公开(公告)日：2001-04-17
申请号：US09111310
申请日：1998-07-07
IPC分类号： H01L2976
CPC分类号： H03K17/6872 , H01L27/088 , H03K17/162
摘要： An electronic switch in integrated circuit from includes a first n-channel MOS transistor and a second n-channel MOS transistor with respective source-drain paths in series between an input terminal and an output terminal, and a third n-channel MOS transistor connected between a connection node between the first and second transistors and a supply terminal. The gate electrodes of the first and second transistors are connected together to a first control terminal and the gate electrode of the third transistor is connected to a second control terminal of the electronic switch. The first and third transistors are formed in a first p-well and the second transistor is formed in a second p-well, insulated from the first. A circuit branch which is identical, but provided by p-channel MOS transistors is also provided between the input and output terminals. The electronic switch is usable in circuit applications with transient voltages which may go beyond the supply voltage of the integrated circuit in a positive or negative direction.
摘要翻译： 一种集成电路中的电子开关，包括：第一n沟道MOS晶体管和第二n沟道MOS晶体管，其具有在输入端子和输出端子之间串联的各自的源极 - 漏极路径;以及第三n沟道MOS晶体管， 第一和第二晶体管之间的连接节点和供电端子。 第一和第二晶体管的栅电极连接到第一控制端，第三晶体管的栅电极连接到电子开关的第二控制端。 第一和第三晶体管形成在第一p阱中，并且第二晶体管形成在与第一p阱绝缘的第二p阱中。 在输入和输出端子之间也提供相同但由p沟道MOS晶体管提供的电路支路。 电子开关可用于具有可能在正或负方向上超过集成电路的电源电压的瞬态电压的电路应用中。
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公开(公告)号：US06556055B2
公开(公告)日：2003-04-29
申请号：US09945317
申请日：2001-08-31
IPC分类号： H03B100
CPC分类号： H03K17/6871 , H03K17/063
摘要： A drive circuit for controlled edge power elements is described. In one embodiment the drive circuit for controlled edge power elements comprises: a first integrating circuit having a first input suitable for receiving in input a first drive signal; an integrating capacitor coupled to said integrating circuit; a first power element driven by said first integrating circuit and suitable for driving a load, said load having a first terminal. The said first integrating circuit includes a first current amplifier and said integrating capacitor is coupled between said first input and a predetermined reference voltage.
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公开(公告)号：US5909034A
公开(公告)日：1999-06-01
申请号：US648990
申请日：1996-05-17
IPC分类号： G01R31/02 , H01L21/60 , H01L21/66 , H01L21/822 , H01L23/482 , H01L23/528 , H01L27/04 , H01L23/49
CPC分类号： H01L24/06 , H01L23/4824 , H01L23/528 , H01L24/49 , H01L2224/05554 , H01L2224/05599 , H01L2224/48091 , H01L2224/49113 , H01L24/48 , H01L2924/00014 , H01L2924/01004 , H01L2924/01005 , H01L2924/01006 , H01L2924/01033 , H01L2924/01037 , H01L2924/01074 , H01L2924/01088 , H01L2924/13091 , H01L2924/19043
摘要： A device presenting pairs of split contact pad portions, each pair of pads having multiple bonding wire, and metal connecting strips associated therewith. The end portion of the metal connecting strips being split into parallel strip segments, each connected to a respective contact pad, so as to form a plurality of parallel current paths between a node and an external contact pin connected to the node. When current is supplied along the connecting strip a voltage drop along each segment connected to a sound bonding wire is produced, but not along the segments connected to broken or non-bonded wires. By determining the existence of a voltage difference between the contact pad portions, it is possible to detect the interruption of one or more of the bonding wires.
摘要翻译： 提供成对的分离接触焊盘部分的装置，每对焊盘具有多个接合线，以及与其相关联的金属连接条。 金属连接条的端部被分成平行的条状段，每条连接条分别连接到相应的接触焊盘，以在节点和连接到该节点的外部接触销之间形成多个平行的电流路径。 当沿着连接条提供电流时，产生沿着连接到声音接合线的每个段的电压降，但是不沿着连接到断开或非接合线的段。 通过确定接触焊盘部分之间的电压差的存在，可以检测一个或多个接合线的中断。
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公开(公告)号：US06940685B2
公开(公告)日：2005-09-06
申请号：US10464435
申请日：2003-06-16
CPC分类号： H02P25/034
摘要： A method of driving an electrical load having a complex electrical impedance, such as a voice-coil motor controlling the position of a read/write head in a data storage disk drive system, comprises providing a voltage-mode driver generating drive signals for the electrical load in response to drive commands. Compensated commands for the voltage-mode driver are generated filtering the drive commands, compensating for a phase shift between electrical quantities delivered to the electrical load. The voltage-mode drive thus emulates a conventional, but more expensive, current-mode drive. In a preferred embodiment, the method comprises estimating characteristic parameters of the electrical load during the operation, and adapting the filtering to the estimated characteristic parameters. The estimation comprises implementing a Kalman filtering algorithm, particularly an extended Kalman filtering.
摘要翻译： 驱动具有复电阻抗的电负载的方法，例如控制数据存储盘驱动系统中读/写头位置的音圈电机，包括提供电压模式驱动器，产生用于电 响应驱动命令加载。 产生用于电压模式驱动器的补偿命令，对驱动命令进行滤波，补偿传送到电负载的电量之间的相移。 因此，电压模式驱动器模拟常规但是更昂贵的电流模式驱动器。 在优选实施例中，该方法包括估计操作期间的电负载的特征参数，以及使滤波适应估计的特征参数。 估计包括实现卡尔曼滤波算法，特别是扩展卡尔曼滤波。
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公开(公告)号：US06777998B2
公开(公告)日：2004-08-17
申请号：US10216562
申请日：2002-08-09
IPC分类号： G06F764
CPC分类号： H03H11/481
摘要： An integrated electronic circuit includes a plurality of active circuits connected together in cascade. A feedback loop is between an output of a last active circuit and an input of a first active circuit so that the plurality of active devices function as a non-linear device, such as a capacitor. The integrated electronic circuit may be integrated or used in association with a circuit network including other non-linear devices.
摘要翻译： 集成电子电路包括级联连接在一起的多个有源电路。 反馈回路在最后一个有效电路的输出和第一有源电路的输入之间，使得多个有源器件用作诸如电容器之类的非线性器件。 集成电子电路可以与包括其他非线性装置的电路网络相关联地集成或使用。
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公开(公告)号：US06624701B2
公开(公告)日：2003-09-23
申请号：US09945320
申请日：2001-08-31
IPC分类号： H03F345
CPC分类号： H03F3/345 , H03F3/45269 , H03F3/45273
摘要： A current amplifier includes an input branch having a first input; an output branch coupled to said input branch; a bias branch suitable for biasing said input branch. The input branch comprises at least one switch commanded by a first bias voltage supplied by said bias branch so as to substantially block the current flowing in said input branch and consequently substantially block the current flowing in said output branch when the current applied to said first input is null.
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公开(公告)号：US06842062B2
公开(公告)日：2005-01-11
申请号：US10216094
申请日：2002-08-09
IPC分类号： H01L21/822 , H01L27/04 , H03H11/48 , G06F7/556
CPC分类号： H03H11/485
摘要： An integrated electronic circuit includes a plurality of active circuits connected together in cascade. A feedback loop is between an output of a last active circuit and an input of a first active circuit so that the plurality of active devices function as a non-linear device, such as an inductor. The integrated electronic circuit may be integrated or used in association with a circuit network including other non-linear devices.
摘要翻译： 集成电子电路包括级联连接在一起的多个有源电路。 反馈环路在最后一个有效电路的输出和第一有源电路的输入之间，使得多个有源器件用作非线性器件，例如电感器。 集成电子电路可以与包括其他非线性装置的电路网络相关联地集成或使用。
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公开(公告)号：US06421258B1
公开(公告)日：2002-07-16
申请号：US09947201
申请日：2001-09-04
IPC分类号： H02H7122
CPC分类号： H02M3/158 , H02M1/08 , H02M2003/1555 , H02P6/182 , H03K5/1536
摘要： The present invention relates a current zero crossing detecting circuit including a PWM driving half bridge circuit, which generates an output signal (OUT) and a signal synchronous with the high impedance condition of said PWM driving half bridge circuit. Said inventive circuit has the characteristic of comprising detecting means (DFLIP, COMP) synchronous with said signal synchronous with the high impedance condition of said PWM driving half bridge circuit and said output signal (OUT), and said detecting means generating a direction signal (DIR_COR) showing the current direction flowing in said pulse width modulation circuit.
摘要翻译： 本发明涉及一种包括PWM驱动半桥电路的电流过零检测电路，其产生输出信号（OUT）和与所述PWM驱动半桥电路的高阻抗条件同步的信号。 所述本发明电路具有的特征在于包括与所述PWM驱动半桥电路和所述输出信号（OUT）的高阻抗状态同步的所述信号同步的检测装置（DFLIP，COMP），所述检测装置产生方向信号（DIR_COR ）示出了在所述脉冲宽度调制电路中流动的电流方向。
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10.发明授权Method and device for driving brushless motors either with independently coupled windings or with star or polygon pre-connected windings using the same I.C. 有权用独立耦合的绕组驱动无刷电动机的方法和装置，或者使用与相同的I.C的星形或多边形预先连接的绕组。公开(公告)号：US06362592B1
公开(公告)日：2002-03-26
申请号：US09576693
申请日：2000-05-23
IPC分类号： H02P132
CPC分类号： H02P6/085
摘要： A method is provided for driving a brushless motor of a type including windings pre-connected in a star or polygon configuration with an integrated driving system designed for independently driving the phase windings. The integrated driving system includes a plurality of output pins corresponding to the output nodes of as many half-bridge stages that are driven in pairs respectively by a direct or inverted driving signal at the same power level without overloading the output metal lines of the integrated device. Each supply terminal of the brushless motor is connected to one of the plurality of output pins of the integrated system relative to a first driving phase signal and to another output pin relative to a different driving phase signal. The drive circuit is internally configured through a plurality of integrated signal path selectors set in one or the other position depending upon the intended use of the integrated device. Further, the paths of the driving phase signals directed toward the inputs of the plurality of half-bridges driven in pairs are coherently crossed to the external connecting scheme of the windings of the motor.
摘要翻译： 提供了一种用于驱动包括以星形或多边形配置预连接的绕组的类型的无刷电动机的方法，该集成驱动系统被设计用于独立地驱动相绕组。 集成驱动系统包括多个输出引脚，其对应于分别以相同功率电平的直接或反相驱动信号成对驱动的半桥级的输出节点，而不会使集成器件的输出金属线过载 。 无刷电动机的每个供电端子相对于第一驱动相位信号连接到集成系统的多个输出引脚中的一个，并且相对于不同的驱动相位信号连接到另一个输出引脚。 驱动电路根据集成设备的预期用途，通过设置在一个或另一个位置中的多个集成信号路径选择器在内部配置。 此外，朝向驱动成对的多个半桥的输入的驱动相位信号的路径与电动机的绕组的外部连接方案相干。
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