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公开(公告)号：US07194376B2
公开(公告)日：2007-03-20
申请号：US10832755
申请日：2004-04-27
申请人： Seyed R. Zarabadi
发明人： Seyed R. Zarabadi
IPC分类号： G06F15/00
CPC分类号： G01P15/18 , G01P15/125 , G01P2015/082
摘要： A dual-axis accelerometer and processing circuit are provided. The accelerometer has a plurality of fixed electrodes supported on a substrate and fixed capacitive plates arranged in first and second sensing axes. An inertial mass is suspended over a cavity and includes movable capacitive plates arranged to provide a capacitive couplings with the fixed capacitive plates. The inertial mass is movable relative to the plurality of fixed electrodes. The accelerometer has a plurality of support arms for supporting the inertial mass relative to the fixed electrodes and allowing movement of the inertial mass upon experiencing acceleration along the first and second sensing axes. The accelerometer further has inputs for receiving input signals and an output for providing an output signal which varies as a function of the capacitive coupling and is indicative of sensed acceleration. The processing circuit extracts the components of acceleration along the first and second sensing axes.
摘要翻译： 提供双轴加速度计和处理电路。 加速度计具有支撑在基板上的多个固定电极和布置在第一和第二检测轴上的固定电容板。 惯性质量块悬挂在空腔上，并且包括可移动电容板，其布置成提供与固定电容板的电容耦合。 惯性质量可相对于多个固定电极移动。 加速度计具有多个支撑臂，用于相对于固定电极支撑惯性质量块，并允许惯性质量块在沿着第一和第二感测轴经历加速度时移动。 加速度计还具有用于接收输入信号的输入和用于提供作为电容耦合的函数而变化的输出信号的输出，并且指示感测的加速度。 处理电路沿第一和第二检测轴提取加速度分量。
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公开(公告)号：US20110112792A1
公开(公告)日：2011-05-12
申请号：US12999131
申请日：2009-07-23
IPC分类号： G01K7/16
CPC分类号： G01K7/01 , G01K7/427 , G01K2217/00
摘要： An apparatus and method of determining the junction temperature (Tj) and drain-source current (Ids) of a standard FET within a multi-FET module includes a control IC managing one or more 3 terminal standard FETs within the same package, calculating Tj and Tds for one or more FETs in one or more packages, and protecting each FET against short circuit faults while allowing high current transients, such as inrush currents from a lamp load.
摘要翻译： 确定多FET模块内的标准FET的结温（Tj）和漏 - 源电流（Ids）的装置和方法包括管理同一封装内的一个或多个3个端子标准FET的控制IC，计算Tj和 Tds用于一个或多个封装中的一个或多个FET，并且保护每个FET免于短路故障，同时允许高电流瞬变，例如来自灯负载的浪涌电流。
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公开(公告)号：US07705615B2
公开(公告)日：2010-04-27
申请号：US11999161
申请日：2007-12-04
申请人： Zinovy Tyves , Gary D. Bree , Brent T. Repp , Seyed R. Zarabadi
发明人： Zinovy Tyves , Gary D. Bree , Brent T. Repp , Seyed R. Zarabadi
CPC分类号： H03K17/955 , H03K2217/96015
摘要： An extruded capacitive sensor assembly includes multiple sense conductors of unequal length disposed in an upper section of a non-conductive jacket, and a ground conductor disposed in a lower section of the jacket adjacent a panel or carrier to which the strip is affixed. A sensor strip with three sense conductors is formed by extruding a non-conductive jacket having first and second sense conductors in the upper section of the jacket, and severing the first sense conductor to create three unequal length sense conductor segments. Electrical termination to the sense and ground conductors can be made at the point where the first sense conductor is severed, or at the end of the sensor strip. In cases where only two sense conductor segments are needed, the third sense conductor segment is removed or simply un-used.
摘要翻译： 挤出的电容式传感器组件包括设置在非导电护套的上部中的不等长度的多个感测导体，以及布置在护套的下部中的接地导体，邻近贴片所附着的面板或载体。 具有三个感测导体的传感器带通过在夹套的上部中挤出具有第一和第二感测导体的非导电套管而形成，并且切断第一感测导体以产生三个不等长度的感测导体段。 可以在第一感测导体断开的点处或传感器带的末端处对感测和接地导体的电终端进行。 在仅需要两个感测导体段的情况下，第三感测导体段被去除或者简单地不被使用。
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公开(公告)号：US07293460B2
公开(公告)日：2007-11-13
申请号：US11109347
申请日：2005-04-19
IPC分类号： G01P15/125
CPC分类号： G01P15/18 , G01P15/125 , G01P2015/082
摘要： A three-axis accelerometer is provided for sensing acceleration in three orthogonal axes. The accelerometer includes a support substrate, fixed electrodes having fixed capacitive plates fixed to the support substrate, and a movable inertial mass having movable capacitive plates capacitively coupled to the fixed capacitive plates. The accelerometer includes banks of fixed and movable capacitive plates oriented to sense acceleration in orthogonal X- and Y-axes. Additionally, the accelerometer includes fixed and movable capacitive plates having a height variation between adjacent plates to sense acceleration in the vertical Z-axis. Input signals are applied to certain electrodes coupled to the fixed capacitive plates, and an output signal is generated on the inertial mass, which is indicative of acceleration in each of the sensing axes. The output signal may be further processed to generate individual acceleration outputs for each of the sensing axes.
摘要翻译： 提供三轴加速度计用于感测三个正交轴的加速度。 加速度计包括支撑基板，具有固定在支撑基板上的固定电容板的固定电极，以及具有与固定电容板电容耦合的可移动电容板的可动惯性块。 加速度计包括一组固定和可移动的电容板，定向为在正交X轴和Y轴上检测加速度。 此外，加速度计包括在相邻板之间具有高度变化的固定和可移动电容板，以感测垂直Z轴上的加速度。 输入信号被施加到耦合到固定电容板的某些电极，并且在惯性质量上产生输出信号，其表示每个感测轴中的加速度。 可以进一步处理输出信号以产生每个感测轴的各个加速度输出。
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公开(公告)号：US07250322B2
公开(公告)日：2007-07-31
申请号：US11081422
申请日：2005-03-16
IPC分类号： H01L21/00
CPC分类号： B81C1/00047 , B81B2201/0235 , B81B2203/033 , G01P15/0802 , G01P15/125 , G01P15/18 , G01P2015/082
摘要： A linear accelerometer is provided having a support substrate, fixed electrodes having fixed capacitive plates, and a movable inertial mass having movable capacitive plates capacitively coupled to the fixed capacitive plates. Adjacent capacitive plates vary in height. The accelerometer further includes support tethers for supporting the inertial mass and allowing movement of the inertial mass upon experiencing a linear acceleration along a sensing axis. The accelerometer has inputs and an output for providing an output signal which varies as a function of the capacitive coupling and is indicative of both magnitude and direction of vertical acceleration along the sensing Z-axis. A microsensor fabrication process is also provided which employs a top side mask and etch module.
摘要翻译： 提供了一种线性加速度计，其具有支撑基板，具有固定电容板的固定电极和具有电容耦合到固定电容板的可移动电容板的可动惯性块。 相邻的电容板的高度不同。 加速度计进一步包括用于支撑惯性质量的支撑系绳，并允许惯性质量块沿着感测轴线经历线性加速度的运动。 加速度计具有输入和输出，用于提供作为电容耦合的函数而变化的输出信号，并且指示沿感测Z轴的垂直加速度的大小和方向。 还提供了采用顶侧掩模和蚀刻模块的微传感器制造工艺。
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公开(公告)号：US5561426A
公开(公告)日：1996-10-01
申请号：US311999
申请日：1994-09-26
摘要： A converter for converting an analog signal into a digital representation having a most significant bit (MSB), upper-significant bits (USBs), and lower-significant bits (LSBs) with a least significant bit being a predetermined incremental voltage value. The converter is responsive to external signals and is adapted to receive a supply voltage. The analog-to-digital converter provides for a determination of the most significant bit (MSB) that does not rely on the ratio factor between the capacitors of the charge-storage capacitor bank nor on the accuracy of the ratio factor of the resistors of the voltage-scale resistive ladder network. Further, the converter comprises a charge-storage capacitor bank, a voltage-scale resistive ladder network, first and second comparators, an output stage amplifier, and an arrangement of electronically controlled switches and capacitors that cancel the DC offset conditions within the analog-to-digital converter in such a way that the DC offset conditions do not jeopardize the accuracy of the converter.
摘要翻译： A转换器，用于将模拟信号转换成具有最高有效位（MSB），高有效位（USB）和低有效位（LSB））的数字表示，其中最低有效位是预定的增量电压值。 转换器响应于外部信号并且适于接收电源电压。 模数转换器提供了不依赖于电荷存储电容器组的电容器之间的比率因子的最高有效位（MSB）的确定以及电容器的电阻器的比率因子的精度 电压级电阻梯形网络。 此外，转换器包括电荷存储电容器组，电压级电阻梯形网络，第一和第二比较器，输出级放大器和电子控制开关和电容器的布置，其抵消模拟到 数字转换器，使得DC偏移条件不会危及转换器的精度。
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公开(公告)号：US5073975A
公开(公告)日：1991-12-17
申请号：US399948
申请日：1989-08-28
CPC分类号： H03J1/0091
摘要： A Stop On Station (SOS) circuit for a AM and FM radio receivers evaluates field strength of a received station signal and in addition measures and evaluates the frequency of the IF signal so as to assure that the received signal is essentially centered at the IF frequency to identify candidate stations signals which are suitable for listening. The IF frequency for a received candidate station signal is evaluated for an evaluation period of time (e.g., for 40 milliseconds). During each 40 millisecond period, fifteen samples of the frequency of the IF signal are counted and evaluated. If the frequency of the measured signal falls within acceptable limits, a four stage binary persistence counter is incriminated. If a count of 12 or more out of the 15 possible counts is accumulated therein during a 40 ms evaluation period, a station signal is considered to be suitable from a standpoint of received frequency and a "frequency pass" signal is generated. The SOS circuit, in turn, generates a "Stop" signal if the AGC signal is above a predetermined threshold at the time the pass signal occurs. In this case of FM signals, the magnitude of ultrasonic noise (noise in the range of 100 kHz to 200 kHz) in the output of the FM detector is measured and used to identify acceptable station signals. Noise above a threshold value eliminates a station signal from consideration.
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公开(公告)号：US4996499A
公开(公告)日：1991-02-26
申请号：US407842
申请日：1989-09-15
申请人： Seyed R. Zarabadi , Linh N. Pham
发明人： Seyed R. Zarabadi , Linh N. Pham
CPC分类号： H03F1/308
摘要： An inverting amplifier useful in an oscillator circuit includes complementary serially connected first and second metal-oxide-semiconductor field effort transistor (MOSFETS) and first and second resistors, two capacitors, a first feedback circuit having two MOSFETS in series with a third resistor and a second feedback circuit having two MOSFETS and a fourth resistor in series. Each feedback circuit provides a feed back path from the drain of one of the output transistors to the gate thereof. The resistors are polysilicon type resistors and have a negative thermal coefficient. The amplifier has a very stable output signal amplitude which is essentially independent of integrated circuit manufacturing processing variations and operating temperature variations within useful ranges.
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公开(公告)号：US08643333B2
公开(公告)日：2014-02-04
申请号：US13221942
申请日：2011-08-31
IPC分类号： H02J7/00 , H01M10/46 , G01N27/416
CPC分类号： G01R31/3658
摘要： A battery monitor system for determining a cell voltage between a low side contact and a high side contact of a cell in situ as one of a plurality of cells connected in series to form a battery. The system uses an arrangement of switches and capacitors to shift relatively high absolute voltages of a battery stack to a relative low voltage level so lower voltage electronics can be used to monitor cell voltages. The system may be configured to provide a single ended measurement or a differential measurement indicative of a cell voltage. The differential measurement may be advantageous to correct or offset signal noise caused by electromagnetic interference (EMI).
摘要翻译： 一种电池监视器系统，用于确定作为串联连接的多个单元之一的原位的低端接触和高侧接触之间的电池电压以形成电池。 该系统使用开关和电容器的布置来将电池堆的相对较高的绝对电压移动到相对低的电压水平，因此可以使用较低电压的电子元件来监测电池电压。 该系统可以被配置为提供指示单元电压的单端测量或差分测量。 差分测量可能有利于校正或抵消由电磁干扰（EMI）引起的信号噪声。
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公开(公告)号：US07645627B2
公开(公告)日：2010-01-12
申请号：US12011063
申请日：2008-01-24
申请人： John C. Christenson , Dan W. Chilcott , Richard G. Forestal , Jack L. Glenn , Seyed R. Zarabadi
发明人： John C. Christenson , Dan W. Chilcott , Richard G. Forestal , Jack L. Glenn , Seyed R. Zarabadi
IPC分类号： H01L21/00
CPC分类号： B81C1/00246 , B81B3/001 , B81B2201/0242 , B81C2203/0735
摘要： A motion sensor in the form of an angular rate sensor and a method of making a sensor are provided and includes a support substrate and a silicon sensing ring supported by the substrate and having a flexive resonance. Drive electrodes apply electrostatic force on the ring to cause the ring to resonate. Sensing electrodes sense a change in capacitance indicative of vibration modes of resonance of the ring so as to sense motion. A plurality of silicon support rings connect the substrate to the ring. The support rings are located at an angle to substantially match a modulus of elasticity of the silicon, such as about 22.5 degrees and 67.5 degrees, with respect to the crystalline orientation of the silicon.
摘要翻译： 提供角速率传感器形式的运动传感器和制造传感器的方法，并且包括支撑衬底和由衬底支撑并具有柔性共振的硅感测环。 驱动电极在环上施加静电力，使环产生共振。 感测电极感测指示环的谐振的振动模式的电容的变化，以便感测运动。 多个硅支撑环将基板连接到环上。 支撑环以与硅的结晶取向基本上匹配的弹性模量（例如约22.5度和67.5度）的角度定位。
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