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1.发明授权
公开(公告)号：US5430409A
公开(公告)日：1995-07-04
申请号：US319155
申请日：1994-10-06
申请人： Paul E. Buck , Mark W. Gose , Ian D. Jay
发明人： Paul E. Buck , Mark W. Gose , Ian D. Jay
CPC分类号： H03F1/3211 , H03K5/153
摘要： A circuit and method are provided for generating a clipping distortion detector output signal for an integrated circuit audio amplifier which is independent of operating temperature and supply voltage. The system includes an audio amplifier having a voltage gain, a first input for receiving an input voltage and an output for generating an amplified output voltage. A supply voltage is supplied to the audio amplifier and the supply voltage determines the maximum amplified output voltage. A comparison voltage is generated which is indicative of the output voltage divided by the voltage gain. A clip detector voltage comparator receives the input voltage and the comparison voltage and provides a clipping distortion detect signal when the input voltage deviates from the comparison voltage in excess of an offset voltage which is indicative of detection of excessive clipping distortion. According to one embodiment, the offset voltage is adaptively controlled as a function of the supply voltage so as to maintain a substantially constant maximum percent distortion. According to a second embodiment, the offset voltage is adjusted as a function of supply voltage to achieve an adjustable maximum percent distortion. In addition, the offset voltage is also controlled as a function of temperature to provide temperature compensation. The supply voltage and temperature compensation may be achieved by generating a current source as a function of supply voltage and temperature.
摘要翻译： 提供一种电路和方法，用于产生与工作温度和电源电压无关的集成电路音频放大器的限幅失真检测器输出信号。 该系统包括具有电压增益的音频放大器，用于接收输入电压的第一输入端和用于产生放大的输出电压的输出。 电源电压被提供给音频放大器，电源电压确定最大放大的输出电压。 产生指示输出电压除以电压增益的比较电压。 剪辑检测器电压比较器接收输入电压和比较电压，并且当输入电压偏离超过偏移电压的比较电压时提供削波失真检测信号，该偏移电压指示检测到过度的限幅失真。 根据一个实施例，偏移电压被自适应地控制为电源电压的函数，以便保持基本上恒定的最大百分比失真。 根据第二实施例，偏移电压被调整为电源电压的函数，以实现可调节的最大百分比失真。 此外，偏移电压也被控制为温度的函数以提供温度补偿。 可以通过产生作为电源电压和温度的函数的电流源来实现电源电压和温度补偿。
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公开(公告)号：US07204162B2
公开(公告)日：2007-04-17
申请号：US10995779
申请日：2004-11-23
申请人： Jack D. Johnson , Seyed R. Zarabadi , Ian D. Jay
发明人： Jack D. Johnson , Seyed R. Zarabadi , Ian D. Jay
摘要： A strain gauge for sensing strain is provided and includes a support substrate, and first and second electrodes supported on the substrate. The first and second electrodes include first and second capacitive plates, respectively. The first capacitive plates are movable relative to the second capacitive plates responsive to strain. The strain gauge further has an input electrically coupled to one of the first and second electrodes for receiving an input signal, and an output electrically coupled to the other of the first and second electrodes for providing an output signal which varies as a function of the capacitive coupling and is indicative of sensed strain.
摘要翻译： 提供了用于感测应变的应变计，并且包括支撑衬底以及支撑在衬底上的第一和第二电极。 第一和第二电极分别包括第一和第二电容板。 响应于应变，第一电容板相对于第二电容板可移动。 应变仪还具有电耦合到第一和第二电极中的一个用于接收输入信号的输入端，以及电耦合到第一和第二电极中的另一个的输出端，用于提供作为电容器的函数而变化的输出信号 耦合并且表示感测到的应变。
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公开(公告)号：US06718826B2
公开(公告)日：2004-04-13
申请号：US10085536
申请日：2002-02-28
IPC分类号： G01P1500
CPC分类号： G01P15/125 , G01C19/5712 , G01P15/0888
摘要： A balanced angular accelerometer is provided having a substrate, a fixed electrode with a plurality of fixed capacitive plates, and a rotational inertia mass with a central opening and substantially suspended over a cavity and including a plurality of movable capacitive plates arranged to provide a capacitive coupling with the first plurality of fixed capacitive plates. The accelerometer has a central member and an outer member fixed to the substrate. According to one embodiment, a plurality of inner support arms extend between the central member and the inertia mass and a plurality of outer support arms extend between the inertia mass and the outer member to support the mass over the cavity. According to another embodiment, one or more cut out apertures are formed in the inertia mass to compensate for a channel and signal line so as to balance the inertia mass about the center of the inertia mass.
摘要翻译： 提供一种平衡角加速度计，其具有衬底，具有多个固定电容板的固定电极和具有中心开口并基本上悬挂在空腔上的旋转惯性质量块，并且包括多个可移动电容板，其布置成提供电容耦合 与第一组多个固定电容板。 加速度计具有中心构件和固定到基底的外部构件。 根据一个实施例，多个内部支撑臂在中心构件和惯性质量块之间延伸，并且多个外部支撑臂在惯性块和外部构件之间延伸以将质量支撑在空腔上。 根据另一实施例，在惯性质量块中形成一个或多个切口孔，以补偿通道和信号线，以平衡围绕惯性质心的中心的惯性质量。
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公开(公告)号：US06666092B2
公开(公告)日：2003-12-23
申请号：US10085933
申请日：2002-02-28
IPC分类号： G01P1500
CPC分类号： G01P15/0888 , G01P15/125
摘要： A balanced angular accelerometer is provided having a substrate, a fixed electrode with a plurality of fixed capacitive plates, and a rotational inertia mass with a central opening and substantially suspended over a cavity and including a plurality of movable capacitive plates arranged to provide a capacitive coupling with the first plurality of fixed capacitive plates. The accelerometer has a central member and an outer member fixed to the substrate. According to one embodiment, a plurality of inner support arms extend between the central member and the inertia mass and a plurality of outer support arms extend between the inertia mass and the outer member to support the mass over the cavity. According to another embodiment, one or more cut out apertures are formed in the inertia mass to compensate for a channel and signal line so as to balance the inertia mass about the center of the inertia mass.
摘要翻译： 提供一种平衡角加速度计，其具有衬底，具有多个固定电容板的固定电极和具有中心开口并基本上悬挂在空腔上的旋转惯性质量块，并且包括多个可移动电容板，其布置成提供电容耦合 与第一组多个固定电容板。 加速度计具有中心构件和固定到基底的外部构件。 根据一个实施例，多个内部支撑臂在中心构件和惯性质量块之间延伸，并且多个外部支撑臂在惯性块和外部构件之间延伸以将质量支撑在空腔上。 根据另一实施例，在惯性质量块中形成一个或多个切口孔，以补偿通道和信号线，以平衡围绕惯性质心的中心的惯性质量。
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5.发明授权
公开(公告)号：US5442316A
公开(公告)日：1995-08-15
申请号：US268750
申请日：1994-06-30
申请人： Paul E. Buck , Mark W. Gose , Ian D. Jay
发明人： Paul E. Buck , Mark W. Gose , Ian D. Jay
CPC分类号： H03F1/3211 , H03K5/153
摘要： A circuit and method are provided for generating a clipping distortion detector output signal for an integrated circuit audio amplifier which is independent of operating temperature and supply voltage. The system includes an audio amplifier having a voltage gain, a first input for receiving input voltage and an output for generating an amplified output voltage. A supply voltage is supplied to the audio amplifier and the supply voltage determines the maximum amplified output voltage. A comparison voltage is generated which is indicative of the output voltage divided by the voltage gain. A clip detector voltage comparator receives the input voltage and the comparison voltage and provides a clipping distortion detect signal when the input voltage deviates from the comparison voltage in excess of an offset voltage which is indicative of detection of excessive clipping distortion. The output voltage is adaptively controlled as a function of the supply voltage so as to maintain a substantially constant maximum percent distortion. In addition, the offset voltage is also controlled as a function of temperature to provide temperature compensation. The supply voltage and temperature compensation may be achieved by generating a current source as a function of supply voltage and temperature.
摘要翻译： 提供一种电路和方法，用于产生与工作温度和电源电压无关的集成电路音频放大器的限幅失真检测器输出信号。 该系统包括具有电压增益的音频放大器，用于接收输入电压的第一输入端和用于产生放大的输出电压的输出。 电源电压被提供给音频放大器，电源电压确定最大放大的输出电压。 产生指示输出电压除以电压增益的比较电压。 剪辑检测器电压比较器接收输入电压和比较电压，并且当输入电压偏离超过偏移电压的比较电压时提供削波失真检测信号，该偏移电压指示检测到过度的限幅失真。 输出电压被自适应地控制为电源电压的函数，以便保持基本上恒定的最大百分比失真。 此外，偏移电压也被控制为温度的函数以提供温度补偿。 可以通过产生作为电源电压和温度的函数的电流源来实现电源电压和温度补偿。
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6.发明授权公开(公告)号：US07038321B1
公开(公告)日：2006-05-02
申请号：US10908162
申请日：2005-04-29
申请人： Abhijeet V. Chavan , Jeffrey A. Mars , Ian D. Jay , Johnna L. Wyant , David W. Ihms , John K. Isenberg , Roger E. Worl
发明人： Abhijeet V. Chavan , Jeffrey A. Mars , Ian D. Jay , Johnna L. Wyant , David W. Ihms , John K. Isenberg , Roger E. Worl
CPC分类号： H01L24/81 , G01L9/0073 , H01L21/563 , H01L24/28 , H01L2224/05001 , H01L2224/05023 , H01L2224/05568 , H01L2224/1132 , H01L2224/16 , H01L2224/73203 , H01L2224/81801 , H01L2224/83102 , H01L2224/92125 , H01L2924/00014 , H01L2924/01033 , H01L2924/01046 , H01L2924/01047 , H01L2924/01049 , H01L2924/0105 , H01L2924/01051 , H01L2924/01078 , H01L2924/01082 , H01L2924/014 , H01L2924/14 , H01L2924/15787 , H01L2924/30105 , H01L2924/3011 , H01L2924/351 , H01L2924/00 , H01L2224/05599
摘要： A method of flip-chip mounting a circuit device to a substrate in a manner that avoids damage and impairment of a fragile or otherwise sensitive element on the device facing the substrate, and a circuit assembly produced thereby. The assembly includes a substrate having at least two sets of bonding sites spaced apart from each other to define an intermediate surface region therebetween. The device is attached to the bonding sites with solder connections, with the solder connections being present on a surface of the device that faces the substrate and on which the element is present so that the element overlies the intermediate surface region of the substrate. An underfill material is present between the device and the substrate and encapsulates the solder connections. The underfill material is separated from the intermediate surface region of the substrate so that the underfill material does not contact the element.
摘要翻译： 一种将电路器件倒装成衬底的方法，其方式是避免在面向衬底的器件上的脆弱或其他敏感元件的损坏和损伤，以及由此产生的电路组件。 组件包括具有彼此间隔开的至少两组结合位置的衬底，以在它们之间限定中间表面区域。 该装置通过焊料连接而附接到焊接部位，其中焊料连接存在于器件的面向衬底的表面上并且元件存在于其上，使得元件覆盖衬底的中间表面区域。 在装置和基板之间存在底部填充材料并封装焊料连接。 底部填充材料与衬底的中间表面区域分离，使得底部填充材料不与元件接触。
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