公开(公告)号：US20120139612A1

公开(公告)日：2012-06-07

申请号：US13313491

申请日：2011-12-07

申请人： Sasan Cyrusian

发明人： Sasan Cyrusian

IPC分类号： G06G7/18

CPC分类号： H03F3/38 ,  H03F3/217 ,  H03F3/26

摘要： A circuit includes a first amplifier and a second amplifier, wherein first amplifier is configured to receive an input current at a first input of the first amplifier, and an output of the first op-mp is configured to drive a first input of the second amplifier. The circuit further includes a pull-up current source selectively coupled to the first input of the second amplifier, and a pull-down current source selectively coupled to the first input of the second amplifier. If the absolute value of the input current is larger than a predefined threshold current: i) the pull-up current source is configured to drive current into the first input of the second amplifier for a first polarity of the input current, and ii) the pull-down current source is configured to sink current from the first input of the second amplifier for a second polarity of the input current.

摘要翻译： 电路包括第一放大器和第二放大器，其中第一放大器被配置为在第一放大器的第一输入处接收输入电流，并且第一op-mp的输出被配置为驱动第二放大器的第一输入 。 电路还包括选择性地耦合到第二放大器的第一输入的上拉电流源，以及选择性地耦合到第二放大器的第一输入的下拉电流源。 如果输入电流的绝对值大于预定义的阈值电流：i）上拉电流源被配置成驱动电流进入第二放大器的第一输入端用于输入电流的第一极性，以及ii） 下拉电流源被配置为从输入电流的第二极性吸收来自第二放大器的第一输入端的电流。

公开(公告)号：US20120139611A1

公开(公告)日：2012-06-07

申请号：US12960299

申请日：2010-12-03

申请人： Christoph Sebastian Schwoerer

发明人： Christoph Sebastian Schwoerer

IPC分类号： G06G7/18

CPC分类号： H02J7/0078 ,  G01R31/3613

摘要： A circuit may include a source of electrical energy and a plurality of current loads. Each load may be of a different amount. For each current load, a resistance may be in series between the source and the current load. The resistance may be weighted inversely proportional to the amount of the current load with respect to the other resistances. For each resistance, an integrator may generate an integrated output representative of an integration of the current traveling through the resistance. A summer may generate a summed output which is representative of the sum of each of the integrated outputs, weighted inversely proportional to the resistance that is associated with the integrated output.

摘要翻译： 电路可以包括电能源和多个电流负载。 每个负载可能有不同的量。 对于每个电流负载，电流可能在源极和电流负载之间串联。 电阻可以与当前负载的量相对于其他电阻成反比。 对于每个电阻，积分器可以产生代表通过电阻的电流的积分的积分输出。 一个加法器可以产生一个相加的输出，它表示每个积分输出的总和，加权与与积分输出相关联的电阻成反比。

公开(公告)号：US20110254718A1

公开(公告)日：2011-10-20

申请号：US13166518

申请日：2011-06-22

申请人： Kazuo MATSUKAWA ,  Shiro DOSHO ,  Yosuke MITANI ,  Koji OBATA

发明人： Kazuo MATSUKAWA ,  Shiro DOSHO ,  Yosuke MITANI ,  Koji OBATA

IPC分类号： H03M3/00 ,  G06G7/18

CPC分类号： H03M3/376 ,  H03M3/43 ,  H03M3/454

摘要： An integrator is provided which can reduce a disturbance in the current waveform of a current DA converter in order to improve the SNR of a ΔΣ modulator, for example. The integrator includes an operational amplifier, and feedback paths provided in parallel between the output terminal and inverting input terminal of the operational amplifier. In one of the feedback paths, an integrating capacitor and at least one resistor are connected in series. In the other feedback path, a second integrating capacitor whose capacitance value is smaller than that of the integrating capacitor is provided.

摘要翻译： 提供了一种积分器，其可以减小当前DA转换器的电流波形中的干扰，以便提高＆Dgr＆amp; 调制器。 积分器包括运算放大器，并且在运算放大器的输出端和反相输入端之间并联提供反馈路径。 在其中一个反馈路径中，积分电容器和至少一个电阻器串联连接。 在另一个反馈路径中，提供了电容值小于积分电容器的第二积分电容器。

公开(公告)号：US07982526B2

公开(公告)日：2011-07-19

申请号：US12212486

申请日：2008-09-17

申请人： Chun C. Lee

发明人： Chun C. Lee

IPC分类号： G06G7/18 ,  H03M1/12

CPC分类号： H03F3/45183 ,  H03F1/0261 ,  H03F3/005 ,  H03F2203/45166 ,  H03F2203/45244 ,  H03F2203/45321 ,  H03F2203/45461 ,  H03F2203/45466 ,  H03F2203/45471 ,  H03F2203/45512 ,  H03F2203/45551 ,  H03F2203/45561 ,  H03F2203/45616 ,  H03F2203/45674

摘要： Exemplary embodiments of the disclosure include adaptively generating a bias current for a switched-capacitor circuit. An exemplary apparatus includes a first phase signal and a second phase signal operating at a sampling rate. An asserted time of the first phase signal and an asserted time of the second phase signal are separated by a predefined non-overlap time. The apparatus also includes a switched-capacitor circuit with a plurality of switched capacitors operably coupled to the first phase signal and the second phase signal. An amplifier is operably coupled to the switched-capacitor circuit and has a response time inversely proportional to an adaptive bias current. A bias generator is coupled to the amplifier and operates to modify the adaptive bias current responsive to the asserted time of the first phase signal.

摘要翻译： 本公开的示例性实施例包括自适应地产生开关电容器电路的偏置电流。 示例性装置包括以采样率操作的第一相位信号和第二相位信号。 第一相位信号的断言时间和第二相位信号的断言时间被隔开预定义的非重叠时间。 该装置还包括具有可操作地耦合到第一相位信号和第二相位信号的多个开关电容器的开关电容器电路。 放大器可操作地耦合到开关电容器电路并具有与自适应偏置电流成反比的响应时间。 偏置发生器耦合到放大器并且操作以响应于第一相位信号的断言时间来修改自适应偏置电流。

公开(公告)号：US20110050476A1

公开(公告)日：2011-03-03

申请号：US12888126

申请日：2010-09-22

申请人： Shiro Dosho ,  Takashi Morie ,  Kazuo Matsukawa ,  Yosuke Mitani ,  Masao Takayama

发明人： Shiro Dosho ,  Takashi Morie ,  Kazuo Matsukawa ,  Yosuke Mitani ,  Masao Takayama

IPC分类号： H03M1/12 ,  G06G7/18

CPC分类号： H03M3/454 ,  H03M3/404 ,  H03M3/43

摘要： An integrator includes an operational amplifier, a first filter connected to an inverting input terminal of the operational amplifier, and a second filter connected between the inverting input terminal and an output terminal of the operational amplifier. The first filter includes n resistive elements connected in series, and (n−1) capacitive elements each having one end connected to an interconnecting node of the resistive elements and the other end connected to ground. The second filter includes n capacitive elements connected in series, and (n−1) resistive elements each having one end connected to an interconnecting node of the capacitive elements and the other end connected to ground.

摘要翻译： 积分器包括运算放大器，连接到运算放大器的反相输入端的第一滤波器和连接在运算放大器的反相输入端和输出端之间的第二滤波器。 第一滤波器包括串联连接的n个电阻元件和（n-1）个电容元件，每个电容元件的一端连接到电阻元件的互连节点，另一端连接到地。 第二滤波器包括串联连接的n个电容元件和（n-1）个电阻元件，每个电阻元件的一端连接到电容元件的互连节点，另一端连接到地。

公开(公告)号：US20110026180A1

公开(公告)日：2011-02-03

申请号：US12839806

申请日：2010-07-20

申请人： Jürgen Haible ,  Manfred Schiller

发明人： Jürgen Haible ,  Manfred Schiller

IPC分类号： H02H3/08 ,  G06G7/18

CPC分类号： H03H11/46 ,  H01H71/123 ,  H03F3/45475 ,  H03F2200/264 ,  H03F2203/45138 ,  H03F2203/45528

摘要： An integrator and a circuit-breaker are disclosed, the integrator being in the form of a passive symmetrical low-pass filter having an integration capacitor. In order to make it possible to temporally integrate an electrical signal in an improved manner, it is proposed in at least one embodiment that provision be made of a differential amplifier having two amplifying elements each having an input, that the two amplifying elements be coupled to one another in order to generate a differential signal, that the inputs of the two amplifying elements be connected to one another via the integration capacitor, and that each amplifying element be positively fed back to its input via a feedback loop in such a manner that the two amplifying elements together form a negative input resistance in parallel with the integration capacitor.

摘要翻译： 公开了一种积分器和断路器，积分器是具有积分电容器的被动对称低通滤波器的形式。 为了使得可以以改进的方式对电信号进行时间上积分，在至少一个实施例中提出，提供具有两个放大元件的差分放大器，每个放大元件都具有输入，两个放大元件耦合到 另一个是为了产生差分信号，两个放大元件的输入通过积分电容彼此连接，并且每个放大元件通过反馈回路被正确地反馈到其输入，使得 两个放大元件一起形成与积分电容并联的负输入电阻。

公开(公告)号：US20110013736A1

公开(公告)日：2011-01-20

申请号：US12812655

申请日：2009-01-16

申请人： Satoshi Tsukamoto ,  Noriaki Saito ,  Katsuaki Abe ,  Kentaro Miyano ,  Yoshifumi Hosokawa ,  Yasuyuki Naito

发明人： Satoshi Tsukamoto ,  Noriaki Saito ,  Katsuaki Abe ,  Kentaro Miyano ,  Yoshifumi Hosokawa ,  Yasuyuki Naito

IPC分类号： H04B1/10 ,  G06G7/18

CPC分类号： H03H19/004

摘要： A sampling filter device wherein the filter characteristic is variable without using a control signal of a complicated waveform is provided. A sampling filter device 105 has integration capacitors 130 and 131, an integration time adjustment section 180, and a plurality of switches 100, 101, 110, and 111. Input current is integrated in different time duration with one clock and is stored in the integration capacitors 130 and 131 and charges stored in the integration capacitor from several clocks before to one clock before are added and the result is output. When charge is stored in the integration capacitors 130 and 131 with each clock, the integration time duration is changed, whereby it is made possible to weight and add output charge and the filter characteristic changes.

摘要翻译： 提供了一种采样滤波器装置，其中滤波器特性是可变的，而不使用复杂波形的控制信号。 采样滤波器装置105具有积分电容器130和131，积分时间调整部分180和多个开关100,101,110和111.输入电流在一个时钟内以不同的持续时间被积分并被存储在积分 电容器130和131以及存储在积分电容器中的电荷从加到之前的一个时钟之前的几个时钟相加，并且输出结果。 当在每个时钟存储积分电容器130和131中的电荷时，积分持续时间被改变，从而可以对输出电荷进行加权和增加并且滤波器特性改变。

公开(公告)号：US20100244925A1

公开(公告)日：2010-09-30

申请号：US12596011

申请日：2008-03-27

申请人： Edgard Goobar ,  Gunnar Forsberg

发明人： Edgard Goobar ,  Gunnar Forsberg

IPC分类号： G06G7/18

CPC分类号： H05B33/0812 ,  Y02B20/343 ,  Y02B20/345

摘要： Device for controlling the current through a PN junction includes a voltage source connected in series to, in order, firstly a controllable current generator having an input connected to the voltage source, an output and a control input, thereafter a measurement resistor connected to the output, and finally a controlled output to which the PN junction is connected. The device further includes a control signal input, a differential amplifier and an integrating device, which includes a balanced integrator. The current through the output of the controllable current generator is proportional to the voltage difference between its input and its control input, and the reference voltage of the integrating device is constituted of the voltage of the voltage source.

摘要翻译： 用于控制通过PN结的电流的装置包括串联连接的电压源，依次首先是具有连接到电压源的输入的可控电流发生器，输出和控制输入，之后连接到输出的测量电阻器 ，最后是连接PN结的受控输出。 该装置还包括控制信号输入，差分放大器和积分装置，其包括平衡积分器。 通过可控电流发生器的输出的电流与其输入与其控制输入之间的电压差成比例，并且积分装置的参考电压由电压源的电压构成。

公开(公告)号：US20090243660A1

公开(公告)日：2009-10-01

申请号：US12079786

申请日：2008-03-28

申请人： Hyung-Jin Lee ,  Ian Young

发明人： Hyung-Jin Lee ,  Ian Young

IPC分类号： G06G7/18 ,  H03D13/00

CPC分类号： H03L7/0893 ,  H03L7/093 ,  H03L7/18

摘要： In general, in one aspect, an apparatus includes a phase frequency detector, a charge pump, a voltage controlled oscillator, an integral capacitor to maintain an integral charge and provide an integral voltage, and a mutual-charge canceling sample reset (MCSR) capacitor to maintain a proportional charge and provide a proportional voltage each reference clock cycle. The MCSR includes a first proportional capacitor, a second proportional capacitor in parallel to, and having substantially identical capacitance value as, the first proportional capacitor, a first set of switches to provide direct coupling of the first and second proportional capacitors, and a second set of switches to provide cross coupling of the first and second proportional capacitors. The first and second set of switches alternatively turn on and off every reference clock cycle so that set of switches coupling the first and second proportional capacitors alternates every reference clock cycle.

摘要翻译： 通常，在一个方面，一种装置包括相位频率检测器，电荷泵，压控振荡器，用于保持积分电荷并提供积分电压的积分电容器，以及互电容取样器复位（MCSR）电容器 保持比例电荷并提供比例电压每个参考时钟周期。 MCSR包括与第一比例电容器并联并且具有与第一比例电容器基本相同的电容值的第一比例电容器，第二比例电容器，提供第一和第二比例电容器的直接耦合的第一组开关，以及第二组 的开关以提供第一和第二比例电容器的交叉耦合。 第一组和第二组开关交替地接通和关断每个参考时钟周期，使得耦合第一和第二比例电容器的开关组在每个参考时钟周期交替。

公开(公告)号：US07541858B2

公开(公告)日：2009-06-02

申请号：US11187862

申请日：2005-07-25

申请人： Seigou Yukutake ,  Mutsuhiro Mori ,  Yasuhiko Kohno

发明人： Seigou Yukutake ,  Mutsuhiro Mori ,  Yasuhiko Kohno

IPC分类号： G06G7/18 ,  G06F7/64

CPC分类号： F02P3/0552

摘要： An ignitor comprising a circuit with a millisecond order time constant and with a minimum circuit size and area, which is capable of self-shutdown without leading to erroneous ignition upon detection of an abnormality. An ignitor 1 capable of self-shutdown upon detection of an abnormality comprises an abnormality detection circuit 12 whose rise output is applied to the gate of a self-shutdown MOSFET 33 via an integration circuit 33 comprised of a diode 8 and a capacitor 9. The gate voltage of IGBT 5a, which is a main-current switching device, can be decremented.

摘要翻译： 包括具有毫秒级时间常数且具有最小电路尺寸和面积的电路的点火器，其能够在检测到异常时自动关闭而不导致错误点火。 能够在检测到异常时能够自我关机的点火器1包括：异常检测电路12，其上升输出经由由二极管8和电容器9组成的积分电路33施加到自停闭MOSFET 33的栅极。 作为主电流开关器件的IGBT 5a的栅极电压可以减小。