Laterally sensitive accelerometer and method for making
    1.
    发明授权
    Laterally sensitive accelerometer and method for making 失效
    侧向敏感的加速度计和制造方法

    公开(公告)号:US5337606A

    公开(公告)日:1994-08-16

    申请号:US926616

    申请日:1992-08-10

    摘要: A micromachined capacitor structure having a first anchor (12) attached to the substrate (24), a tether (13) coupled to the anchor (12) and having a portion free to move in a lateral direction over the substrate (24) in response to acceleration. A tie-bar (14) is coupled to the movable portion of the tether (13), and at least one movable capacitor plate (16) is coupled to the tie bar (13). A first fixed capacitor plate (16) is attached to the substrate (24) laterally overlapping and vertically spaced from the at least one movable capacitor plate (16).

    摘要翻译: 一种微加工电容器结构,其具有附接到所述基板(24)的第一锚固件(12),联接到所述锚固件(12)的系绳(13),并且具有在所述基板(24)上沿横向移动的部分,以响应 加速。 连杆(14)联接到系绳(13)的可移动部分,并且至少一个可移动电容器板(16)联接到连接杆(13)。 第一固定电容器板(16)与至少一个可移动电容器板(16)横向重叠并垂直间隔地安装到基板(24)。

    Detection circuit with dummy integrator to compensate for switch charge
insection and amplifier offset voltage
    2.
    发明授权
    Detection circuit with dummy integrator to compensate for switch charge insection and amplifier offset voltage 失效
    具有虚拟积分器的检测电路,用于补偿开关电荷检测和放大器失调电压

    公开(公告)号:US5325065A

    公开(公告)日:1994-06-28

    申请号:US884978

    申请日:1992-05-18

    IPC分类号: G01P15/125 G01P15/08

    CPC分类号: G01P15/125

    摘要: A detection circuit for sensing small capacitive changes has been provided. The detection circuit includes a dummy integrator stage that compensates for a voltage step that results from charge injection due to an existing switch in a first integrator stage. As a result, the detection circuit is insensitive to switch injection and amplifier offset voltages.

    摘要翻译: 已经提供了用于检测小电容变化的检测电路。 该检测电路包括一个虚拟积分器级,用于补偿由于在第一积分器级中由现有开关引起的电荷注入产生的电压阶跃。 结果,检测电路对开关注入和放大器偏移电压不敏感。

    Bandgap voltage reference using a power supply independent current source
    3.
    发明授权
    Bandgap voltage reference using a power supply independent current source 失效
    带隙电压基准使用电源独立电流源

    公开(公告)号:US5029295A

    公开(公告)日:1991-07-02

    申请号:US546636

    申请日:1990-07-02

    IPC分类号: G05F3/22 G05F3/30

    CPC分类号: G05F3/30

    摘要: A voltage reference circuit is provided for developing an output voltage operating independent of temperature and power supply variation. A current reference circit provides a current reference signal operating independent of power supply variation and having a predetermined temperature coefficient and flowing through a first transistor and a first resistor each having opposite temperature coefficients. The output voltage is established as the sum of the base-emitter junction potential of the first transistor and the potential developed across the first resistor. The temperature coefficient of the potential developed across the first resistor substantially cancels the temperature coefficient across the base-emitter junction of the first transistor thereby providing the output voltage operating independent of temperature and power supply variation.

    Current driven control circuit for a power device
    4.
    发明授权
    Current driven control circuit for a power device 失效
    用于电力设备的电流驱动控制电路

    公开(公告)号:US5285346A

    公开(公告)日:1994-02-08

    申请号:US806197

    申请日:1991-12-13

    摘要: A control circuit for protecting a power device has been provided. The control circuit has a thermal shutdown circuit for activating a first SCR when the temperature of the control circuit exceeds a predetermined temperature. Additionally, the control circuit has a DSAT detection circuit for activating the first SCR in response to an external signal. The first SCR is coupled across an input terminal and the common terminal of the control circuit. When the first SCR latches, it functions to subsequently latch a second SCR that is coupled across the output and common terminals. The second SCR functions to rapidly discharge the voltage appearing across the output and common terminals.Additionally, the control circuit includes an input level sensitive circuit which may be utilized to deactivate various circuitry depending upon the current level of an input signal supplied to the control circuit.

    摘要翻译: 已经提供了一种用于保护功率器件的控制电路。 当控制电路的温度超过预定温度时,控制电路具有用于激活第一SCR的热关断电路。 此外,控制电路具有用于响应于外部信号来激活第一SCR的DSAT检测电路。 第一SCR耦合在输入端和控制电路的公共端之间。 当第一SCR锁存时,其功能是随后锁存耦合在输出端和公共端子之间的第二SCR。 第二个SCR用于快速放电出现在输出端和公共端子两端的电压。 此外,控制电路包括输入电平敏感电路,其可以用于根据提供给控制电路的输入信号的当前电平来去激活各种电路。

    Memory device for use in power control circuits
    5.
    发明授权
    Memory device for use in power control circuits 失效
    用于功率控制电路的存储器件

    公开(公告)号:US5235215A

    公开(公告)日:1993-08-10

    申请号:US806198

    申请日:1991-12-13

    IPC分类号: H03K3/352 H02H9/04 H03K17/72

    CPC分类号: H02H9/041

    摘要: A memory circuit which includes a memory SCR and an output SCR is provided. The memory SCR is coupled between the input terminal and the common terminal of the memory circuit wherein the input terminal is the control terminal of the output SCR and the output SCR is coupled across the output terminal and the common terminal of the memory circuit. When the memory SCR latches, it functions to subsequently latch the output SCR. Because the output SCR has a greater forward operating voltage than the memory SCR and by providing a current path from the output terminal to the memory SCR, the memory SCR remains latched during the transition period of when the output SCR goes from a latched state to an unlatched state.

    Soda carbonation retaining apparatus
    7.
    发明授权
    Soda carbonation retaining apparatus 有权
    苏打碳酸化固定装置

    公开(公告)号:US08875928B1

    公开(公告)日:2014-11-04

    申请号:US13864391

    申请日:2013-04-17

    申请人: Paul T. Bennett

    发明人: Paul T. Bennett

    IPC分类号: A61J9/00

    摘要: A soda carbonation retaining apparatus includes a container has a bottom wall, a top wall and a perimeter wall. The bottom wall has an access aperture extending therethrough. The top wall has a nozzle fluidly coupled thereto. A plurality of tracks is mounted to an inner surface of the perimeter wall. A panel is mounted within the housing and is mounted on the tracks. A cover is positionable in a closed position closing the nozzle or in an open position exposing the nozzle. A flexible bag is mounted within the housing and has an upper edge attached to the perimeter wall adjacent to the top wall. The flexible bag is fillable with a carbonated fluid and a volume of the flexible bag is reduced as the panel is moved upwardly toward the nozzle to reduce an amount of free space in the flexible bag.

    摘要翻译: 苏打碳酸化保持装置包括具有底壁,顶壁和周边壁的容器。 底壁具有延伸穿过其的进入孔。 顶壁具有与其流体耦合的喷嘴。 多个轨道安装到周壁的内表面。 面板安装在外壳内并安装在轨道上。 盖子可定位在关闭喷嘴的关闭位置或暴露喷嘴的打开位置。 柔性袋安装在壳体内,并且具有附接到邻近顶壁的周壁的上边缘。 柔性袋可填充碳酸化流体,并且随着面板向上朝向喷嘴移动而减小柔性袋的体积以减少柔性袋中的自由空间的量。

    Structure and method of thermally protecting power devices for airbag deployment
    8.
    发明授权
    Structure and method of thermally protecting power devices for airbag deployment 有权
    用于安全气囊部署的热保护功率装置的结构和方法

    公开(公告)号:US06906900B2

    公开(公告)日:2005-06-14

    申请号:US10324219

    申请日:2002-12-19

    IPC分类号: B60R21/01 H02H5/04 H02H9/00

    CPC分类号: B60R21/0173 H02H5/044

    摘要: System and method protects power drivers (10) and (12) that are used for airbag deployment. Temperature sensors (38) are strategically located on the integrated circuit (36) to detect temperature levels in power drivers (10) and (12). When the temperature in the power drivers (10) and (12) reaches a maximum level, an output is provided to logic block (26). Current detecting circuit (24) provides an output when the current flowing in power driver (10) reaches a desired level. Timing circuit (28) is activated when it receives the output from current detecting circuit (24). At the expiration of the time, timing circuit (28) provides an output to logic block (26). When logic block (26) receives both outputs, logic block (26) shuts drivers (10) and (12) down. When temperature sensors (38) detects that the temperature in integrated circuit (36) has reached a minimum level, logic block (26) reactivates drivers (10) and (12).

    摘要翻译: 系统和方法保护用于安全气囊部署的电源驱动器(10)和(12)。 温度传感器(38)在策略上位于集成电路(36)上以检测电力驱动器(10)和(12)中的温度水平。 当功率驱动器(10)和(12)中的温度达到最大值时,向逻辑块(26)提供输出。 电流检测电路(24)在电力驱动器(10)中流动的电流达到期望水平时提供输出。 定时电路(28)在接收到电流检测电路(24)的输出时被激活。 在时间到期时,定时电路(28)向逻辑块(26)提供输出。 当逻辑块(26)接收到两个输出时,逻辑块(26)关闭驱动器(10)和(12)。 当温度传感器(38)检测到集成电路(36)中的温度已经达到最小值时,逻辑块(26)重启驱动器(10)和(12)。

    Fast acting FET test circuit with current detection for SIR diagnostics
    9.
    发明授权
    Fast acting FET test circuit with current detection for SIR diagnostics 失效
    具有SIR诊断电流检测功能的快速作用FET测试电路

    公开(公告)号:US5872460A

    公开(公告)日:1999-02-16

    申请号:US726897

    申请日:1996-10-04

    摘要: The firing circuit of an inflatable restraint system is tested to verify operation of two FETs in series with a squib which are used to apply current to the squib. For the test the squib is biased to an intermediate voltage and each FET is turned on alone to apply battery or ground voltage to the squib. High and low voltage detectors sense the voltage excursion past respective thresholds to verify FET operation. A current detector for each FET senses a short when its FET is conducting, and a logic circuit immediately turns off the FET to result in a very brief FET on time. In addition, the voltage detectors may be used to detect shorts prior to FET testing and also to turn off or hold off the FETs when a high or low voltage is detected upon FET testing.

    摘要翻译: 测试充气约束系统的点火电路,以验证与用于将电流施加到爆管的爆管串联的两个FET的操作。 对于测试,爆管被偏置到中间电压,并且每个FET单独接通以将电池或接地电压施加到爆管。 高低电压检测器通过相应的阈值感测电压偏移,以验证FET的工作。 每个FET的电流检测器在其FET导通时感测到短路,并且逻辑电路立即关闭FET,以及时导致非常短暂的FET。 此外,电压检测器可以用于在FET测试之前检测短路,并且还可以在FET测试时检测到高电压或低电压时关断或关断FET。

    Current limit sense circuit and method for controlling a transistor
    10.
    发明授权
    Current limit sense circuit and method for controlling a transistor 失效
    限流检测电路及控制晶体管的方法

    公开(公告)号:US5504448A

    公开(公告)日:1996-04-02

    申请号:US283929

    申请日:1994-08-01

    CPC分类号: H03K17/0822

    摘要: A current limit circuit (10/40) for controlling a power transistor (12) has been provided. The current limit circuit includes circuitry which is responsive to a voltage appearing across the drain and source electrodes of the power transistor for providing an appropriate voltage at the gate electrode of the power transistor when a load is de-coupled from the power transistor. This has the effect of preventing excessive transient current when the load is subsequently coupled to the power transistor. Additionally, the current limit circuit includes circuitry for limiting the current flowing through the power transistor via a sense circuit when the load is coupled to the power transistor.

    摘要翻译: 已经提供了用于控制功率晶体管(12)的电流限制电路(10/40)。 电流限制电路包括响应于功率晶体管的漏极和源极两端出现的电压的电路,用于当功率晶体管去耦合负载时,在功率晶体管的栅电极处提供适当的电压。 这具有当负载随后耦合到功率晶体管时防止过大的瞬态电流的效果。 此外,电流限制电路包括用于当负载耦合到功率晶体管时通过感测电路限制流过功率晶体管的电流的电路。