Control circuitry for high voltage solid-state switches
    11.
    发明授权
    Control circuitry for high voltage solid-state switches 失效
    高压固态开关的控制电路

    公开(公告)号:US4447744A

    公开(公告)日:1984-05-08

    申请号:US333434

    申请日:1981-12-22

    CPC分类号: H03K17/567

    摘要: Control circuitry used with the combination of a control switch (typically a gated diode switch GDS) which is coupled to a control (gate) terminal of a like load switch which consists essentially of first and second p-n-p transistors. The collector of the first p-n-p transistor is coupled to an anode of the control switch. The emitter of the first p-n-p transistor is coupled to the base of the second p-n-p transistor and to a control circuitry input terminal. The collector of the second p-n-p transistor is coupled to a gate terminal of the control switch. The control circuitry limits undesirable current flow into the load switch and has fewer components than commonly used control circuitry which performs a like function.

    摘要翻译: 与控制开关(通常是门控二极管开关GDS)组合使用的控制电路,其耦合到类似的负载开关的控制(门)端子,其基本上由第一和第二p-n-p晶体管组成。 第一p-n-p晶体管的集电极耦合到控制开关的阳极。 第一p-n-p晶体管的发射极耦合到第二p-n-p晶体管的基极和耦合到控制电路输入端。 第二p-n-p晶体管的集电极耦合到控制开关的栅极端子。 控制电路限制不期望的电流流入负载开关,并且具有比执行相同功能的常用控制电路更少的组件。

    High-voltage pull-up device
    16.
    发明授权
    High-voltage pull-up device 失效
    高压上拉装置

    公开(公告)号:US4868620A

    公开(公告)日:1989-09-19

    申请号:US219288

    申请日:1988-07-14

    IPC分类号: H01L29/73 H01L29/78

    摘要: An integrated circuit in which a large potential can be maintained between the source of the device and the substrate on which this device and other devices are fabricated is described. The circuit employs a minority carrier sink region to remove minority carriers from the gate region of a MOS depletion device. The sink region is shielded from the substrate by a buried layer which prevents punch-through between the sink region and the substrate.

    摘要翻译: 描述了其中可以在器件的源极与其上制造该器件和其它器件的衬底之间保持大电位的集成电路。 该电路采用少数载流子阱区以从MOS耗尽装置的栅极区域去除少数载流子。 通过掩埋层将宿区域与衬底隔离,防止了宿区域和衬底之间的穿透。

    Low power high voltage driver circuit
    17.
    发明授权
    Low power high voltage driver circuit 失效
    低功耗高压驱动电路

    公开(公告)号:US4795917A

    公开(公告)日:1989-01-03

    申请号:US116243

    申请日:1987-11-02

    CPC分类号: H03K17/6877 H03K17/6871

    摘要: A circuit for driving an output between two voltage states in response to a control signal is disclosed. The circuit requires a very small amount of power in its quiescent state. The circuit comprises a first switch including first and second control terminals that provides a conductive path from a first source of potential to an output terminal when the potential difference between the control terminals is less than a first predetermined threshold value and for electrically isolating the first source of potential from the output terminal when the potential difference between the control terminals is greater than the first predetermined threshold value, and a second switch that provides a conductive path between a second source of potential and the output terminal when the first switch electrically isolates the first source of potential from the output terminal. The second switch electrically isolates the output terminal from the second source of potential when the first switch provides a conductive path from the first source of potential to the output terminal. The circuit also includes a control circuit for causing the potential difference between the first and second control terminals of the first switch to be greater than the first threshold value in response to a predetermined signal on the circuit input terminal and causes the potential difference between the first and second control terminals of the first switch to be less than the first threshold value when the predetermined signal is not present on the circuit input terminal.

    摘要翻译: 公开了一种用于响应于控制信号驱动两个电压状态之间的输出的电路。 该电路在其静止状态下需要非常少量的功率。 该电路包括第一开关,其包括第一和第二控制端子,当控制端子之间的电位差小于第一预定阈值时,第一和第二控制端子提供从第一电位源到输出端的导电路径, 当所述控制端子之间的电位差大于所述第一预定阈值时,所述第二开关从所述输出端子输出,以及第二开关,当所述第一开关电隔离所述第一开关时,所述第二开关在第二电位源和所述输出端子之间提供导电路径; 来自输出端的电位源。 当第一开关提供从第一电势源到输出端的导电路径时,第二开关将输出端与第二电位源电隔离。 电路还包括控制电路,用于响应于电路输入端上的预定信号,使第一开关的第一和第二控制端之间的电位差大于第一阈值,并使第一 并且当电路输入端子上不存在预定信号时,第一开关的第二控制端子小于第一阈值。

    Piezoelectric switch
    18.
    发明授权
    Piezoelectric switch 失效
    压电开关

    公开(公告)号:US4742263A

    公开(公告)日:1988-05-03

    申请号:US88827

    申请日:1987-08-24

    IPC分类号: H01H57/00 H01L41/09 H01L41/08

    CPC分类号: H01H57/00 H01L41/094

    摘要: A switch is provided wherein a piezoelectric bimorph element is used to provide many separately controllable, closely spaced switchable contacts. The element includes at least two oppositely extending fingers connected by a common spine. The element spine is mounted to a case with the fingers spaced from an inner case surface. Electronic circuit means are mounted on the element spine for applying a separate electrical potential to each of the element fingers. A separate movable electrical contact is disposed on each of the element fingers spaced from the spine and insulated from the means for applying the separate electrical potentials to the fingers. A separate stationary contact is provided on an inner case surface opposite each of the movable contacts. In operations, a separate electrical potential is applied to each of the element fingers for selectively causing each finger to deflect and force its movable contact into electrical connection with the opposing stationary contact.

    摘要翻译: 提供了一种开关,其中使用压电双晶片元件来提供许多可分离的可紧密间隔的可切换触点。 该元件包括由普通脊柱连接的至少两个相对延伸的指状物。 元件脊柱安装在手指与内壳表面间隔开的外壳上。 电子电路装置安装在元件脊上,以将单独的电位施加到每个元件指状物。 单独的可移动电触点设置在与脊柱间隔开的每个元件指状件上,并与用于将单独的电势施加到手指的装置绝缘。 在与每个可移动触头相对的内壳表面上设置单独的固定触点。 在操作中,单独的电位被施加到每个元件指状件,用于选择性地使每个指状物偏转并且将其可动触点强制成与相对的固定触点电连接。