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19 条记录 (耗时 0.018 秒)

    Multi-lead protected power device having current and boot-strap inputs
    3.
    发明授权
    Multi-lead protected power device having current and boot-strap inputs 失效
    多引线保护功率器件具有电流和引导输入

    公开(公告)号：US5418674A

    公开(公告)日：1995-05-23

    申请号：US95573

    申请日：1993-07-19

    申请人： Robert B. Davies ,  David F. Mietus

    发明人： Robert B. Davies ,  David F. Mietus

    IPC分类号： H03K17/042 ,  H03K17/08 ,  H03K17/0812 ,  H03K17/082 ,  H03K17/16 ,  H03K17/18 ,  H03K17/30 ,  H02H9/00

    CPC分类号： H03K17/04213 ,  H03K17/08126 ,  H03K17/0826 ,  H03K17/16 ,  H03K17/18 ,  H03K17/30 ,  H03K2017/0806

    摘要： A multi-leaded protected power device having a boot-strap input has been provided. The power device includes a current controlled, boot-strap driven control die (20) for use with a power transistor (25). The control die includes an under voltage lock-out circuit (46) which inhibits drive to the power transistor until the input signals exceed a predetermined threshold level. Moreover, the control die includes a noise immunity enhancement circuit (56) for providing an excess reverse bias across an output SCR (58) for preventing false triggering of the output SCR. The power device further includes a status output lead (204) for indicating when a voltage occurring across the power transistor has exceeded a predetermined threshold, and a current output lead (220) for providing a current that is proportional to a current flowing through the power transistor.

    摘要翻译： 已经提供了具有引导输入的多引线受保护的功率器件。 功率器件包括用于与功率晶体管（25）一起使用的电流控制的引导带驱动的控制管芯（20）。 控制管芯​​包括欠压锁定电路（46），其阻止对功率晶体管的驱动，直到输入信号超过预定阈值电平。 此外，控制管芯包括用于在输出SCR（58）上提供过大的反向偏置以防止输出SCR的错误触发的抗噪声增强电路（56）。 所述功率器件还包括状态输出引线（204），用于指示所述功率晶体管两端出现的电压何时已经超过预定阈值;以及电流输出引线（220），用于提供与流过所述功率的电流成比例的电流 晶体管。

    Three leaded protected power device having voltage input
    4.
    发明授权
    Three leaded protected power device having voltage input 失效
    具有电压输入的三引线保护功率器件

    公开(公告)号：US5424897A

    公开(公告)日：1995-06-13

    申请号：US43948

    申请日：1993-04-05

    申请人： David F. Mietus ,  Robert B. Davies

    发明人： David F. Mietus ,  Robert B. Davies

    IPC分类号： H03K17/08 ,  H03K17/082 ,  H03K17/56

    CPC分类号： H03K17/0826 ,  H03K2017/0806

    摘要： A voltage driven control die (20) for use with a power device (22) has been provided. The voltage driven control die includes an under voltage lock-out circuit (46) which inhibits drive to the power device until the input voltage exceeds a predetermined threshold voltage. Moreover, the control die includes a noise immunity enhancement circuit (56) for providing an excess reverse bias across an output SCR (58) for preventing false triggering of the output SCR. The control die also includes circuitry (40, 44) for detecting an over temperature or an over current condition within the power device.

    摘要翻译： 已经提供了一种与功率器件（22）一起使用的电压驱动控制管芯（20）。 电压驱动控制管芯包括欠压锁定电路（46），其阻止对功率器件的驱动，直到输入电压超过预定阈值电压。 此外，控制管芯包括用于在输出SCR（58）上提供过大的反向偏置以防止输出SCR的错误触发的抗噪声增强电路（56）。 控制管芯​​还包括用于检测功率器件内的过温或过电流状态的电路（40,44）。

    Bandgap voltage reference using a power supply independent current source
    5.
    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

    申请人： Paul T. Bennett ,  Robert B. Davies ,  David F. Mietus

    发明人： Paul T. Bennett ,  Robert B. Davies ,  David F. Mietus

    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
    6.
    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

    申请人： Robert B. Davies ,  David F. Mietus ,  Paul T. Bennett

    发明人： Robert B. Davies ,  David F. Mietus ,  Paul T. Bennett

    IPC分类号： F02P3/055 ,  H03K17/08 ,  H03K17/0812 ,  H03K17/082 ,  H03K17/687 ,  H01L29/78

    CPC分类号： H03K17/0822 ,  H03K17/08122 ,  H03K17/6877 ,  F02P3/0552 ,  H03K2017/0806

    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
    7.
    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

    申请人： Robert B. Davies ,  David F. Mietus ,  Paul T. Bennett

    发明人： Robert B. Davies ,  David F. Mietus ,  Paul T. Bennett

    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.

    Laterally sensitive accelerometer and method for making
    9.
    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

    申请人： Paul T. Bennett ,  Ronald J. Gutteridge ,  Daniel N. Koury, Jr. ,  David F. Mietus ,  Ljubisa Ristic

    发明人： Paul T. Bennett ,  Ronald J. Gutteridge ,  Daniel N. Koury, Jr. ,  David F. Mietus ,  Ljubisa Ristic

    IPC分类号： G01P15/08 ,  G01P15/125 ,  H01L29/84 ,  H01G7/00

    CPC分类号： G01P15/125 ,  G01P15/0802 ,  Y10T29/43

    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）。

    Push-pull output circuit
    10.
    发明授权
    Push-pull output circuit 失效
    推挽输出电路

    公开(公告)号：US4611178A

    公开(公告)日：1986-09-09

    申请号：US732168

    申请日：1985-05-08

    申请人： Jimmy R. Naylor ,  David F. Mietus

    发明人： Jimmy R. Naylor ,  David F. Mietus

    IPC分类号： H03M1/66 ,  H03F3/30

    CPC分类号： H03F3/3096

    摘要： A low voltage sixteen bit digital-to-analog converter operable between +5 and -5 volt power supplies and capable of providing output voltage levels to within about 1.4 volts of +V.sub.CC and -V.sub.CC includes a push-pull output stage with only a pullup transistor and a pulldown transistor connected in series between the positive and negative supply voltages. The output stage includes circuitry that reduces the base voltage of the pullup transistor or pulldown transistor enough to reduce its collector current to near zero, greatly increasing its effective collector-to-emitter breakdown voltage.

    摘要翻译： 一个低电压十六位数模转换器可在+5和-5伏特电源之间工作，能够将输出电压电平提供到+ VCC左右的1.4伏，-VCC包括一个只有上拉电阻的推挽输出级 晶体管和串联连接在正电源电压和负电源电压之间的下拉晶体管。 输出级包括减小上拉晶体管或下拉式晶体管的基极电压的电路，足以将其集电极电流降至接近零，大大增加其有效的集电极 - 发射极击穿电压。