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    Integrable high-Q tunable capacitor and method
    1.
    发明授权
    Integrable high-Q tunable capacitor and method 失效
    可集成的高Q可调电容器和方法

    公开(公告)号：US5994985A

    公开(公告)日：1999-11-30

    申请号：US985564

    申请日：1997-12-05

    申请人： David R. Pehlke ,  Amit Burstein ,  Mau Chung F. Chang

    发明人： David R. Pehlke ,  Amit Burstein ,  Mau Chung F. Chang

    IPC分类号： H03B1/00 ,  H03J3/16 ,  H03J3/20

    CPC分类号： H03J3/16 ,  H03B2201/0208 ,  H03B2201/0216 ,  H03B2201/025 ,  H03J2200/10

    摘要： A high-performance integrable tunable inductor includes a "primary" coil and a "drive" coil placed in close proximity to each other and simultaneously driven with primary and drive currents, respectively. The drive current induces mutual components of inductance in the primary coil which vary with the phase and amplitude relationship between the two currents. These relationships are controlled to precisely establish the impedance of the primary coil, allowing the inductor to be "tuned" to provide a desired inductance or resistance by simply varying the phase and amplitude relationships appropriately. Inductance values tunable over ranges of about 2:1 and Q values of nearly 2000 have been demonstrated. The primary coil can also be made to operate as a relatively large integrated capacitance by setting the phase and amplitude relationships appropriately. The tunable inductor can be fabricated with standard CMOS processes, or any of a number of other processing technologies, and thus integrated into a host of analog circuits for which a highly-integrated implementation is desirable.

    摘要翻译： 高性能可积分可调电感器包括一个“初级”线圈和一个“驱动”线圈，它们分别靠近彼此并且同时由主电流和驱动电流驱动。 驱动电流导致初级线圈中的电感的相互分量随着两个电流之间的相位和幅度关系而变化。 控制这些关系以精确地建立初级线圈的阻抗，允许电感通过简单地相位和幅度关系改变来“调谐”以提供期望的电感或电阻。 已经证明了在大约2:1的范围内可调谐的电感值和接近2000的Q值。 通过适当地设定相位和幅度关系，初级线圈也可以作为相对较大的积分电容而工作。 可调谐电感器可以用标准CMOS工艺或许多其它处理技术中的任何一种制造，并因此被集成到需要高度集成的实现的模拟电路的主机中。

    Tone detector
    2.
    发明申请
    Tone detector 有权
    音色检测器

    公开(公告)号：US20080303555A1

    公开(公告)日：2008-12-11

    申请号：US11810507

    申请日：2007-06-05

    申请人： Amit Burstein

    发明人： Amit Burstein

    IPC分类号： H03K5/19

    CPC分类号： G01R29/00 ,  H03K5/19

    摘要： A tone detector is disclosed that is realizable in digital embodiment on a single integrated circuit die and does not require external components, such as a discrete capacitor. An input connects to a comparator, which in turn connects to one or more edge detectors and a flip flop. The edge detector outputs a pulse responsive to a detected edge. A counter is reset by the pulses from the edge detectors thereby preventing the counter from reaching a maximum value, which would otherwise be output from the counter and provided to a flip flop to clock in the comparator output at the D input to the flip flop. In operation, the comparator generates a rail to rail signal responsive to a received tone, which in turn is clocked through the flip flop as a logic high output indicating presence of a tone.

    摘要翻译： 公开了在单个集成电路管芯上在数字实施例中可实现的色调检测器，并且不需要诸如分立电容器的外部部件。 输入连接到比较器，比较器又连接到一个或多个边缘检测器和触发器。 边缘检测器响应于检测到的边缘输出脉冲。 计数器由来自边缘检测器的脉冲复位，从而防止计数器达到最大值，否则将从计数器输出，并将其提供给触发器，以在触发器的D输入处的比较器输出中的时钟。 在操作中，比较器响应于接收到的音调产生轨对轨信号，该接收音调又通过触发器被计时，作为指示存在音调的逻辑高输出。

    Bandgap reference voltage startup circuit
    5.
    发明授权
    Bandgap reference voltage startup circuit 有权
    带隙参考电压启动电路

    公开(公告)号：US06392470B1

    公开(公告)日：2002-05-21

    申请号：US09670589

    申请日：2000-09-29

    申请人： Amit Burstein ,  Daniel Shkap

    发明人： Amit Burstein ,  Daniel Shkap

    IPC分类号： G05F110

    CPC分类号： G05F3/30 ,  G05F1/468

    摘要： The invention relates to a device for transitioning a bandgap reference circuit to its operational mode, of supplying a reference voltage, when power is supplied to the combined circuits. The device is comprised of a supply-independent biasing circuit that is electrically connected to a start-up circuit and supports the start-up circuit's ability to cause a bandgap reference circuit to transition to its operational mode for any supply voltage that supports the bandgap reference circuit's operational mode.

    摘要翻译： 本发明涉及一种用于将带隙参考电路转换到其操作模式的装置，当向组合电路供电时，提供参考电压。 该器件由独立于电源的偏置电路组成，该电路电连接到启动电路，并支持启动电路使带隙参考电路转换到其工作模式的任何电源电压的支持带隙基准的能力 电路的运行模式。

    CMOS integrated microsensor with a precision measurement circuit
    6.
    发明授权
    CMOS integrated microsensor with a precision measurement circuit 失效
    具有精密测量电路的CMOS集成微型传感器

    公开(公告)号：US5659195A

    公开(公告)日：1997-08-19

    申请号：US489023

    申请日：1995-06-08

    申请人： William J. Kaiser ,  Kristofer S. J. Pister ,  Oscar M. Stafsudd ,  Phyllis R. Nelson ,  Amit Burstein

    发明人： William J. Kaiser ,  Kristofer S. J. Pister ,  Oscar M. Stafsudd ,  Phyllis R. Nelson ,  Amit Burstein

    IPC分类号： G01P15/08 ,  G01P15/093 ,  G01P15/125 ,  G01P15/13 ,  H01L29/82

    CPC分类号： G01P15/131 ,  G01P15/0802 ,  G01P15/125 ,  G01P2015/0828 ,  G01P2015/0831

    摘要： Improved microsensors are provided by combining surface micromachined substrates, including integrated CMOS circuitry, together with bulk micromachined wafer bonded substrates which include at least part of a microelectromechanical sensing element. In the case of an accelerometer, the proof mass is included within the wafer bonded bulk machined substrate, which is bonded to the CMOS surface machine substrate, which has corresponding etch pits defined therein over which the wafer bonded substrate is disposed, and in the case of accelerometer, the proof mass or thin film membranes in the case of other types of detectors such as acoustical detectors or infrared detectors. A differential sensor electrode is suspended over the etch pits so that the parasitic capacitance of the substrate is removed from the capacitance sensor, or in the case of a infrared sensor, to provide a low thermal conductance cavity under the pyroelectric refractory thin film. Where a membrane suspended electrode is utilized over an etch pit, one or more apertures are defined therethrough to avoid squeeze film damping. Accelerometers built according to the methodology are provided with a nulling feedback voltage to maintain the switch DC voltage across sensing capacitors in a null condition and to maintain high sensitivity without requiring either a precision transformer or regulated power sources in the capacitance bridge of the accelerometer.

    摘要翻译： 通过将表面微机械加工的衬底（包括集成的CMOS电路）与包括微机电感测元件的至少一部分的体微米加工的晶片结合的衬底组合来提供改进的微传感器。 在加速度计的情况下，证明质量包括在晶片接合的主体加工衬底内，该衬底被粘合到CMOS表面机器衬底，其具有限定在其中的对应的蚀刻凹坑，晶片接合衬底在其上设置， 在其他类型的检测器（例如声学检测器或红外检测器）的情况下，加速度计，检测质量膜或薄膜膜。 差分传感器电极悬挂在蚀刻凹坑上，使得从电容传感器或者在红外传感器的情况下去除衬底的寄生电容，以在热电耐火薄膜下方提供低导热空腔。 当膜悬浮电极在蚀刻坑上使用时，一个或多个孔被限定在其中以避免挤压膜阻尼。 根据方法构建的加速度计具有归零反馈电压，以将感测电容器两端的开关直流电压保持在零值状态，并且保持高灵敏度，而不需要加速度计的电容桥中的精密变压器或稳压电源。

    Tone detector
    7.
    发明授权
    Tone detector 有权
    音色检测器

    公开(公告)号：US08379838B2

    公开(公告)日：2013-02-19

    申请号：US11810507

    申请日：2007-06-05

    申请人： Amit Burstein

    发明人： Amit Burstein

    IPC分类号： H04M1/00

    CPC分类号： G01R29/00 ,  H03K5/19

    摘要： A tone detector is disclosed that is realizable in digital embodiment on a single integrated circuit die and does not require external components, such as a discrete capacitor. An input connects to a comparator, which in turn connects to one or more edge detectors and a flip flop. The edge detector outputs a pulse responsive to a detected edge. A counter is reset by the pulses from the edge detectors thereby preventing the counter from reaching a maximum value, which would otherwise be output from the counter and provided to a flip flop to clock in the comparator output at the D input to the flip flop. In operation, the comparator generates a rail to rail signal responsive to a received tone, which in turn is clocked through the flip flop as a logic high output indicating presence of a tone.

    摘要翻译： 公开了在单个集成电路管芯上在数字实施例中可实现的色调检测器，并且不需要诸如分立电容器的外部部件。 输入连接到比较器，比较器又连接到一个或多个边缘检测器和触发器。 边缘检测器响应于检测到的边缘输出脉冲。 计数器由来自边缘检测器的脉冲复位，从而防止计数器达到最大值，否则将从计数器输出，并将其提供给触发器，以在触发器的D输入处的比较器输出中的时钟。 在操作中，比较器响应于接收到的音调产生轨对轨信号，该接收音调又通过触发器被计时，作为指示存在音调的逻辑高输出。

    Voltage regulator with gain boosting
    9.
    发明授权
    Voltage regulator with gain boosting 有权
    电压调节器，增益提升

    公开(公告)号：US06271652B1

    公开(公告)日：2001-08-07

    申请号：US09670591

    申请日：2000-09-29

    申请人： Amit Burstein ,  Daniel Shkap

    发明人： Amit Burstein ,  Daniel Shkap

    IPC分类号： G05F316

    CPC分类号： G05F3/30

    摘要： The invention relates to a voltage regulator providing high immunity to DC variations of a power supply. The voltage regulator comprises a voltage regulator circuit, a gain stage that is connected to the output of the voltage regulator circuit, and a voltage modulation device forming a signal feedback loop between an output and an input of the gain stage. An initial reference voltage is generated by the voltage regulator circuit and provided to an input of the gain stage. The difference between this initial reference voltage and a fractional portion of the feedback signal, from the voltage modulation device, is amplified by the gain stage. The amplified signal of the gain stage is used to modulate the reference voltage provided to an external load. Better DC accuracy and stability is obtained by using a two stage amplifier to increase the loop gain of the voltage regulator.

    摘要翻译： 本发明涉及对电源的DC变化提供高抗扰性的电压调节器。 电压调节器包括电压调节器电路，连接到电压调节器电路的输出的增益级，以及在增益级的输出和输入之间形成信号反馈回路的电压调制装置。 初始参考电压由电压调节器电路产生并提供给增益级的输入端。 该初始参考电压与来自电压调制装置的反馈信号的分数部分之间的差异被增益级放大。 增益级的放大信号用于调制提供给外部负载的参考电压。 通过使用两级放大器来增加电压调节器的环路增益，可以获得更好的直流精度和稳定性。