Linear voltage regulator with improved large transient response
    1.
    发明授权
    Linear voltage regulator with improved large transient response 失效
    线性稳压器具有改进的大瞬态响应

    公开(公告)号:US07741823B2

    公开(公告)日:2010-06-22

    申请号:US11668297

    申请日:2007-01-29

    IPC分类号: G05F1/56 G05F1/575

    CPC分类号: G05F1/565

    摘要: Various voltage regulators and/or voltage regulation systems are disclosed. For example, a voltage regulation system that includes a source follower output is disclosed. The source follower output includes a transistor where the source of the transistor provides a baseline voltage to a regulated voltage output node. The voltage regulation system further includes a body damping circuit and a low speed feedback circuit. The body damping circuit is electrically coupled to the body of the transistor, and is operable to provide a rapid opposition to any voltage disturbance at the regulated voltage output node. The low speed feedback circuit is electrically coupled to the gate of the transistor, and is operable to return the regulated voltage output node to the baseline voltage.

    摘要翻译: 公开了各种电压调节器和/或电压调节系统。 例如,公开了包括源极跟随器输出的电压调节系统。 源极跟随器输出包括晶体管,其中晶体管的源极向稳压电压输出节点提供基线电压。 电压调节系统还包括体阻尼电路和低速反馈电路。 身体阻尼电路电耦合到晶体管的主体,并且可操作地提供与调节电压输出节点处的任何电压干扰的快速对抗。 低速反馈电路电耦合到晶体管的栅极,并且可操作以将调节电压输出节点返回到基线电压。

    Single diaphragm transducer with multiple sensing elements
    2.
    发明授权
    Single diaphragm transducer with multiple sensing elements 失效
    具有多个传感元件的单透镜传感器

    公开(公告)号:US5058435A

    公开(公告)日:1991-10-22

    申请号:US369899

    申请日:1989-06-22

    摘要: A transducer having a plurality of sensing elements disposed in a single diaphragm wherein each of the sensing elements is spaced from every other of the sensing elements a predetermined distance so as to control interference among the sensing elements. Each of the sensing elements preferably comprises a plurality of piezoresistors each of which are coupled in a Wheatstone bridge configuration. This transducer achieves sensitive, accurate, high spatial resolution measurements of non-uniform pressures.

    摘要翻译: 一种换能器,其具有设置在单个光阑中的多个感测元件,其中每个感测元件与感测元件中的每一个隔开预定距离,以便控制感测元件之间的干涉。 每个感测元件优选地包括多个压敏电阻器,每个压敏电阻器以惠斯通电桥配置耦合。 该传感器实现了非均匀压力的灵敏,准确,高空间分辨率测量。

    Single diaphragm transducer with multiple sensing elements
    5.
    发明授权
    Single diaphragm transducer with multiple sensing elements 失效
    具有多个传感元件的单隔膜换能器

    公开(公告)号:US5184515A

    公开(公告)日:1993-02-09

    申请号:US905219

    申请日:1992-06-29

    IPC分类号: G01L1/18 G01L9/00

    摘要: A transducer having a plurality of sensing elements disposed in a single diaphragm wherein each of the sensing elements is spaced from every other of the sensing elements a predetermined distance so as to control interference among the sensing elements. Each of the sensing elements preferably comprises a plurality of piezoresistors each of which are coupled in a Wheatstone bridge configuration. This transducer achieves sensitive, accurate, high spatial resolution measurements of non-uniform pressures.

    摘要翻译: 一种换能器,其具有设置在单个光阑中的多个感测元件,其中每个感测元件与感测元件中的每一个隔开预定距离,以便控制感测元件之间的干涉。 每个感测元件优选地包括多个压敏电阻器,每个压敏电阻器以惠斯通电桥配置耦合。 该传感器实现了非均匀压力的灵敏,准确,高空间分辨率测量。

    Self-testable micro-accelerometer and method
    6.
    发明授权
    Self-testable micro-accelerometer and method 失效
    自检微加速度计及方法

    公开(公告)号:US5103667A

    公开(公告)日:1992-04-14

    申请号:US370364

    申请日:1989-06-22

    IPC分类号: G01P15/12 G01P21/00

    摘要: An apparatus and method of operation for a self-testable accelerometer having a housing, a diaphragm for detecting movement in response to an applied force, a mass on the diaphragm, at least one capacitive plate attached to the housing and disposed such that a potential difference between the capacitive plate and the mass causes a movement of the mass, electrodes for applying a potential difference between the mass and the capacitive plate, and at least one piezoresistive element attached to the housing and the diaphragm for sensing movement of the mass. The accelerometer's housing comprises a frame, a base and a cap with air gaps providing squeeze film damping and mechanical stops for inhibiting movements of the mass. The combination of the capability to electrostatically produce a movement of the mass and the piezoresistive sensing of that movement allows testing and calibration of the accelerometer at any stage in its manufacture or deployment without the need for external equipment such as shakers.

    摘要翻译: 一种用于具有壳体的自检加速度计的装置和操作方法,用于响应于施加的力检测运动的隔膜,隔膜上的质量,附接到壳体的至少一个电容板,并且布置成使得电位差 在电容板和质量之间导致质量块的移动,用于在质量块和电容板之间施加电位差的电极以及附着到壳体和隔膜的至少一个压阻元件,用于感测质量块的移动。 加速度计的外壳包括一个框架,一个基座和一个具有气隙的盖子,提供挤压膜阻尼和机械止动件,用于抑制质量的运动。 静电产生质量运动的能力和对该运动的压阻感测的能力的组合允许在其制造或部署的任何阶段测试和校准加速度计,而不需要诸如振动器之类的外部设备。

    Miniature gas chromatograph apparatus
    7.
    发明授权
    Miniature gas chromatograph apparatus 失效
    微型气相色谱仪

    公开(公告)号:US4474889A

    公开(公告)日:1984-10-02

    申请号:US371617

    申请日:1982-04-26

    摘要: A gas chromatography assembly has a substrate wafer with grooves and a valve seat etched therein. A plate cooperates with the wafer and the grooves to define gas channels: a carrier gas channel and a sample gas channel, each passing through the valve seat. A valve actuator is attached to the valve seat for controlling the flow of sample gas from the sample gas channel into the carrier gas channel. A pump is attached to the wafer and is connected to the sample gas channel. The pump cooperates with the valve actuator to inject sample gas from the sample gas channel into the carrier gas channel. A modular capillary tube and a detector are connected to the carrier gas channel to analyze the properties of the sample gas flowing in the carrier gas channel from the sample gas channel.

    摘要翻译: 气相色谱组合件具有其中蚀刻有凹槽和阀座的衬底晶片。 板与晶片和槽配合以限定气体通道:载气通道和样品气体通道,每个通过阀座。 阀致动器附接到阀座,用于控制样气从样气通道进入载气通道的流动。 泵连接到晶片并连接到样品气体通道。 泵与阀门致动器配合,将样品气体从样品气体通道注入载气通道。 模块化毛细管和检测器连接到载气通道,以分析从样气通道在载气通道中流动的样气的性质。

    Extremely low cost pressure sensor realized using deep reactive ion etching
    8.
    发明授权
    Extremely low cost pressure sensor realized using deep reactive ion etching 有权
    使用深反应离子蚀刻实现极低成本的压力传感器

    公开(公告)号:US07111518B1

    公开(公告)日:2006-09-26

    申请号:US10665991

    申请日:2003-09-19

    IPC分类号: G01L7/08 G01L9/00

    CPC分类号: G01L9/0042

    摘要: Methods and apparatus for an absolute or gauge pressure sensor having a backside cavity with a substantially vertical interior sidewall. The backside cavity is formed using a DRIE etch or other MEMS micro-machining technique. One embodiment provides for a diaphragm having a boss manufactured using a two step process that results in a boss thickness that is independent of the thickness of the starting material. Another provides for various shapes to the backside cavity that reduces the likelihood of crystalline fractures while focusing stress on piezoresistive sensing elements. Another provides for a sensitivity adjustment by thinning the insulating and silicon layers that form the sensor diaphragm. A pressure sensor according to the present invention may incorporate one or more of these, or may incorporate other elements discussed herein.

    摘要翻译: 用于具有具有基本上垂直的内侧壁的背侧空腔的绝对或表压式压力传感器的方法和装置。 使用DRIE蚀刻或其他MEMS微加工技术形成背面腔。 一个实施例提供了一种隔板,其具有使用两步工艺制造的凸台,其导致凸起厚度与初始材料的厚度无关。 另一种为背面腔提供各种形状,其降低了结晶断裂的可能性,同时将压力聚焦在压阻感测元件上。 另一种通过使形成传感器隔膜的绝缘层和硅层变薄来提供灵敏度调节。 根据本发明的压力传感器可以并入这些中的一个或多个,或者可以包含本文所讨论的其它元件。

    Trimmable microminiature force-sensitive switch
    9.
    发明授权
    Trimmable microminiature force-sensitive switch 失效
    可调微型力敏感开关

    公开(公告)号:US4737660A

    公开(公告)日:1988-04-12

    申请号:US930703

    申请日:1986-11-13

    摘要: A trimmable microminiature force-sensitive switching device for detecting the state of external conditions, such as pressure, acceleration and temperature, is disclosed. The device includes a silicon substrate having a reduced-thickness, deflectable member adapted to change its deflection in response to changes in the external condition to be detected. Increasing deflection of the member establishes electrical contact between a common contact and first one, then progressively more, spaced electrical contacts of a plurality of switches. Each of the spaced electrical contacts is connected to a common terminal. Trimming of the switching device is accomplished by application of a preselected external force, such as pressure, that causes the deflection of the deflectable member and the closing of one or more of the switches. Electrical energy is then applied to the external terminal of the common contact and the external terminal of the common terminal of the fusible links, such that current flows through the switches that have closed and through their associated fusible links, causing those fusible links to open circuit, thereby precluding the subsequent detection of external conditions whose level is at or below the preselected level applied during trimming of the device.

    摘要翻译: 公开了一种用于检测诸如压力,加速度和温度之类的外部状态的可调整的微型力敏感开关装置。 该装置包括具有减小厚度的可偏转构件的硅衬底,其适于响应于待检测的外部状况的变化而改变其偏转。 构件的增加的偏转建立了公共接触件与第一接头之间的电接触,然后在多个开关中逐渐增加间隔开的电触点。 每个间隔开的电触头连接到公共端子。 通过施加诸如压力的预选的外力来实现切换装置的修整,其导致可偏转构件的偏转和关闭一个或多个开关。 然后将电能施加到公共接点的外部端子和可熔链路的公共端子的外部端子,使得电流流过已经关闭的开关并通过其相关联的可熔链路,使得可熔链路断开 从而防止随后检测其水平处于或低于在修整设备期间施加的预选级别的外部条件。

    LINEAR VOLTAGE REGULATOR WITH IMPROVED LARGE TRANSIENT RESPONSE
    10.
    发明申请
    LINEAR VOLTAGE REGULATOR WITH IMPROVED LARGE TRANSIENT RESPONSE 失效
    线性电压调节器具有改进的大的瞬态响应

    公开(公告)号:US20080180080A1

    公开(公告)日:2008-07-31

    申请号:US11668297

    申请日:2007-01-29

    IPC分类号: G05F1/00

    CPC分类号: G05F1/565

    摘要: Various voltage regulators and/or voltage regulation systems are disclosed. For example, a voltage regulation system that includes a source follower output is disclosed. The source follower output includes a transistor where the source of the transistor provides a baseline voltage to a regulated voltage output node. The voltage regulation system further includes a body damping circuit and a low speed feedback circuit. The body damping circuit is electrically coupled to the body of the transistor, and is operable to provide a rapid opposition to any voltage disturbance at the regulated voltage output node. The low speed feedback circuit is electrically coupled to the gate of the transistor, and is operable to return the regulated voltage output node to the baseline voltage.

    摘要翻译: 公开了各种电压调节器和/或电压调节系统。 例如,公开了包括源极跟随器输出的电压调节系统。 源极跟随器输出包括晶体管,其中晶体管的源极向稳压电压输出节点提供基线电压。 电压调节系统还包括体阻尼电路和低速反馈电路。 身体阻尼电路电耦合到晶体管的主体,并且可操作地提供与调节电压输出节点处的任何电压干扰的快速对抗。 低速反馈电路电耦合到晶体管的栅极,并且可操作以将调节电压输出节点返回到基线电压。