公开(公告)号：US5258760A

公开(公告)日：1993-11-02

申请号：US912386

申请日：1992-07-13

申请人： Kristaan L. Moody ,  Paul W. Latham, II

发明人： Kristaan L. Moody ,  Paul W. Latham, II

IPC分类号： G06J1/00 ,  H03M1/50

CPC分类号： G06J1/00

摘要： Analog-signal integrators are described that have a transfer function containing a composite parameter that is the product of two parameters each of which is separately changeable, via application of digital programming signals. In a continuous analog-signal integrator the integrating capacitor is a programmable capacitor array, preceded in the feed back branch with a programmable voltage divider. In a discrete-time analog-signal integrator the integrating resistor is a switched-capacitor resistor including a programmable capacitor array that is preceded in the input circuit branch by a programmable voltage divider.

摘要翻译： 描述了模拟信号积分器，其具有包含作为两个参数的乘积的复合参数的传递函数，每个参数可以通过应用数字编程信号来单独变化。 在连续的模拟信号积分器中，积分电容器是可编程电容器阵列，在反馈分支中有一个可编程分压器。 在离散时间模拟信号积分器中，积分电阻是一个开关电容电阻，包括一个可编程电容阵列，在可编程分压器的输入电路分支之前。

公开(公告)号：US5278478A

公开(公告)日：1994-01-11

申请号：US912383

申请日：1992-07-13

申请人： Kristaan L. Moody ,  Paul W. Latham, II

发明人： Kristaan L. Moody ,  Paul W. Latham, II

IPC分类号： G05B11/42 ,  G05B11/01

CPC分类号： G05B11/42

摘要： A programmable PD servo compensator has the transfer function of the combination of a standard PD compensator in tandem with a second order low pass filter. The programmable PD servo compensator consists simply of a biquad filter having a single complex zero and a pair of conjugate complex poles. This servo compensator is comprised of two tandem connected operational amplifiers, each with a capacitor connected output to input across it. The tandem connection is effected by one switched-capacitor resistor between the output of the first amplifier to the input of the second. Another switched-capacitor resistor is connected between the PD compensator input and the input of the first amplifier. Yet another switched capacitor is connected between the PD compensator output and the input of the first amplifier. Additionally, a poles Q-programming circuit branch includes a digitally-programmable capacitor array, and a zero programming circuit branch includes another digitally-programmable capacitor array connected in the filter for determining the S-plane position of the zero and determining the relative gains of the proportional and derivative components of the PD compensator output signal. This is therefore an analog-signal handling servo compensator with digital programmability and having high speed, stability and versatility.

摘要翻译： 可编程PD伺服补偿器具有与二阶低通滤波器串联的标准PD补偿器的组合的传递函数。 可编程PD伺服补偿器仅由具有单个复零点和一对共轭复极的双二阶滤波器组成。 该伺服补偿器由两个串联连接的运算放大器组成，每个运算放大器的电容连接到输入端。 串联连接由第一放大器的输出端与第二放大器的输入端之间的一个开关电容电阻器实现。 另一个开关电容电阻连接在PD补偿器输入和第一放大器的输入端之间。 另一个开关电容器连接在PD补偿器输出和第一放大器的输入端之间。 此外，极点Q编程电路分支包括数字可编程电容器阵列，零编程电路分支包括连接在滤波器中的另一数字可编程电容器阵列，用于确定零的S平面位置，并确定零的相对增益 PD补偿器输出信号的比例和微分分量。 因此，这是具有数字可编程性并具有高速度，稳定性和通用性的模拟信号处理伺服补偿器。

公开(公告)号：US5245262A

公开(公告)日：1993-09-14

申请号：US912387

申请日：1992-07-13

申请人： Kristaan L. Moody ,  Paul W. Latham, II

发明人： Kristaan L. Moody ,  Paul W. Latham, II

IPC分类号： G05B11/42 ,  G05B19/414

CPC分类号： G05B19/4142 ,  G05B11/42

摘要： A digitally programmable integrated-circuit analog-signal servo co-processor has digital programming contact pads to which an external microprocessor may be connected, has analog-signal input pads and analog-signal output pads, and includes a plurality of programmable analog-signal-manipulating circuits (ASMC's). Each of the ASMC's has input and output terminals connected to an input programmable-switch matrix so that one or a combination of the ASMC blocks may be connected between the analog-signal input and output contact pads of the integrated circuit. Certain ASMC blocks have microprocessor programmable transfer functions, e.g. ASMC integrator, notch filter, low pass filter, PD compensator and voltage divider. Key ones of those ASMC blocks are discrete-time circuits including switched-capacitor resistors and have transfer functions wherein the parameters are ratios of capacitances and the switching rate frequency to provide accurate and stable performance. This versatile system of digitally programmable circuit configurations and digitally programmable analog (ASMC) transfer functions provides a hybrid analog and digital servo co-processor having high speed, versatility and stability and a low power consumption.

摘要翻译： 数字可编程集成电路模拟信号伺服协处理器具有可连接外部微处理器的数字编程接触焊盘，具有模拟信号输入焊盘和模拟信号输出焊盘，并且包括多个可编程模拟信号 - 操纵电路（ASMC）。 ASMC中的每一个具有连接到输入可编程开关矩阵的输入和输出端子，使得ASMC块中的一个或其组合可以连接在集成电路的模拟信号输入和输出接触焊盘之间。 某些ASMC模块具有微处理器可编程传输功能，例如 ASMC积分器，陷波滤波器，低通滤波器，PD补偿器和分压器。 这些ASMC块中的关键是离散时间电路，包括开关电容电阻，并具有传递函数，其中参数是电容比率和开关速率频率，以提供准确和稳定的性能。 这种数字可编程电路配置和数字可编程模拟（ASMC）传输功能的多功能系统提供了具有高速度，多功能性和稳定性以及低功耗的混合模拟和数字伺服协处理器。

公开(公告)号：US5331218A

公开(公告)日：1994-07-19

申请号：US912382

申请日：1992-07-13

申请人： Kristaan L. Moody ,  Paul W. Latham, II

发明人： Kristaan L. Moody ,  Paul W. Latham, II

IPC分类号： H03H11/12 ,  H03H19/00 ,  H03K5/00

CPC分类号： H03H19/004

摘要： A notch filter circuit includes first and second operational amplifiers, each having a capacitor connected from the amplifier output to the input. A third capacitor is connected between the second-amplifier input and the filter circuit input. A first switched-capacitor resistor is connected between the filter circuit input and the first-amplifier input. A second switched-capacitor resistor is connected between the first amplifier output and the second amplifier input. The second-amplifier output is connected to the filter circuit output. A third switched-capacitor resistor is connected between said filter circuit output and said first amplifier input; First and second programmable capacitor arrays are connected respectively in parallel with the third switched-capacitor resistor and in parallel with the first switched-capacitor resistor, so that a change only in the capacitance of the second capacitor array causes a corresponding change in the filter notch depth and a change only in the capacitance of the first capacitor array causes a corresponding change in the filter notch width. The first and second capacitor arrays each have a group of digital programming terminals that may be connected together for making fixed the ratio of the capacitance values of the two arrays. A digitally programmable voltage divider circuit connected in series with the second programmable capacitor array permits the independent programing of notch depth, i.e. without affecting notch width.

摘要翻译： 陷波滤波电路包括第一和第二运算放大器，每个具有从放大器输出端连接到输入端的电容器。 第二电容器连接在第二放大器输入端和滤波电路输入端之间。 第一个开关电容电阻连接在滤波电路输入端和第一放大器输入端之间。 第二开关电容电阻连接在第一放大器输出端和第二放大器输入端之间。 第二放大器输出连接到滤波电路输出。 第三开关电容电阻连接在所述滤波电路输出端与所述第一放大器输入端之间; 第一和第二可编程电容器阵列分别与第三开关电容器电阻并联连接，并且与第一开关电容器电阻并联，使得仅在第二电容器阵列的电容中的变化导致滤波器陷波的相应变化 深度和仅第一电容器阵列的电容的变化导致滤波器陷波宽度的相应变化。 第一和第二电容器阵列各自具有可以连接在一起的一组数字编程端子，用于固定两个阵列的电容值的比率。 与第二可编程电容器阵列串联连接的数字可编程分压器电路允许对凹口深度进行独立编程，即不影响切口宽度。