Reducing the natural current limit in a power MOS device by reducing the
gate-source voltage
    362.
    发明授权
    Reducing the natural current limit in a power MOS device by reducing the gate-source voltage 失效
    通过降低栅源电压降低功率MOS器件的自然电流限制

    公开(公告)号:US5541799A

    公开(公告)日:1996-07-30

    申请号:US265609

    申请日:1994-06-24

    CPC classification number: H03K17/0822

    Abstract: In accordance with the present invention, an output current limit circuit for protecting a power MOS output device of an integrated circuit from an excessive drain current comprises a power MOS device 110, a means 30 to sense a predetermined trigger current, and a means 20 to reduce a gate-source voltage on MOS output device 110 to a predetermined approximately fixed value. A drain current I.sub.D flows through power MOS device 110 from output terminal 102 in response to the gate-source voltage. A short circuit condition may allow an excessive amount of drain current I.sub.D to flow through output terminal 102. The gate-source voltage is reduced in response to sensing the trigger current. Reducing the gate-source voltage raises a drain-source resistance of MOS device 110 and reduces drain current I.sub.D so that MOS device 110 is not damaged by the short circuit condition.

    Abstract translation: 根据本发明,用于保护集成电路的功率MOS输出装置与过剩漏极电流的输出限流电路包括功率MOS器件110,感测预定触发电流的装置30和装置20至 将MOS输出装置110上的栅极 - 源极电压降低到预定的大致固定值。 漏极电流ID响应于栅极 - 源极电压从输出端子102流过功率MOS器件110。 短路状态可允许过量的漏极电流ID流过输出端子102.响应于感测触发电流,栅极 - 源极电压被降低。 降低栅极 - 源极电压会提高MOS器件110的漏极 - 源极电阻并且减少漏极电流ID,使得MOS器件110不会被短路状态损坏。

    Digitally controlled output slope control/current limit in power
integrated circuits
    364.
    发明授权
    Digitally controlled output slope control/current limit in power integrated circuits 失效
    功率集成电路数字控制输出斜率控制/限流

    公开(公告)号:US5424669A

    公开(公告)日:1995-06-13

    申请号:US055071

    申请日:1993-04-29

    CPC classification number: H03K17/08104 H03K17/164

    Abstract: A slope control circuit having a plurality of resistive elements connected in parallel, each of the resistive elements including a control element for causing the associated resistive elements to be one of electrically conductive or electrically nonconductive, a delay circuit having a plurality of delay components coupled together in series, each of the delay components having a predetermined delay, the junction of each different adjacent pair of the delay components being coupled to the control element of a different one of the resistive elements and a load circuit coupled across the plurality of resistive elements. The circuit can further include a delay adjust circuit for adjusting the delay of each of the delay components, either initially or on-line. The resistance of each of the resistive elements can be the same or different. The plurality of resistive elements and the delay components are all disposed on a single semiconductor chip.

    Abstract translation: 一种具有并联连接的多个电阻元件的斜率控制电路,每个电阻元件包括用于使相关联的电阻元件为导电或不导电的控制元件,具有耦合在一起的多个延迟元件的延迟电路 串联地,每个延迟部件具有预定的延迟,每个不同的相邻延迟部件对的结被耦合到不同的电阻元件的控制元件和耦合在多个电阻元件上的负载电路。 该电路还可以包括延迟调整电路,用于调整每个延迟部件的延迟,或者是初始的或在线的。 每个电阻元件的电阻可以相同或不同。 多个电阻元件和延迟元件都设置在单个半导体芯片上。

    Sensed current driving device
    366.
    发明授权
    Sensed current driving device 失效
    感应电流驱动装置

    公开(公告)号:US5408141A

    公开(公告)日:1995-04-18

    申请号:US160

    申请日:1993-01-04

    CPC classification number: H01L27/0248 H03K17/0822

    Abstract: An integrated power device comprises a power transistor (26) and a plurality of sense transistors (38), (40), (42), (44), and (46). Sense transistors (38), (40), (42), and (44) are constructed around the periphery of the active area occupied by power transistor (26). Sense transistor (46) is located within the interior of the active area occupied by power transistor (26) and contact is made to the necessary source region (64) of transistor (46) using a second level of metal interconnect to form a source contact (74).

    Abstract translation: 集成的功率器件包括功率晶体管(26)和多个感测晶体管(38),(40),(42),(44)和(46)。 感测晶体管(38),(40),(42)和(44)围绕由功率晶体管(26)占据的有源区域的外围构成。 感测晶体管(46)位于由功率晶体管(26)占据的有效区域的内部,并且使用第二级金属互连件与晶体管(46)的必要源极区域(64)接触以形成源极接触 (74)。

    Compensation for low gain bipolar transistors in voltage and current
reference circuits
    367.
    发明授权
    Compensation for low gain bipolar transistors in voltage and current reference circuits 失效
    电压和电流参考电路中低增益双极晶体管的补偿

    公开(公告)号:US5349286A

    公开(公告)日:1994-09-20

    申请号:US79665

    申请日:1993-06-18

    CPC classification number: G05F3/30

    Abstract: A bandgap reference circuit 30 includes a current generation circuit 32, a voltage generation circuit 34 connected to current generation circuit 32, and a compensation circuit connected to current generation circuit 32 and voltage generation circuit 34. Current generation circuit 32 sources a current to voltage generation circuit 34 which translates the current into a voltage. Compensation circuit 36 monitors current generation circuit 32 and provides a supplemental current to voltage generation circuit 34. Voltage generation circuit 34 receives the supplemental current and translates it into a supplemental voltage. The summation of the voltage produced by the current received by current generation circuit 32 and the supplemental voltage produced by the supplemental current received by compensation circuit 36 produces a stable reference voltage.

    Abstract translation: 带隙参考电路30包括电流产生电路32,连接到电流产生电路32的电压产生电路34以及连接到电流产生电路32和电压产生电路34的补偿电路。电流产生电路32产生电流到电压产生 电路34,其将电流转换成电压。 补偿电路36监视电流产生电路32并向电压产生电路34提供补充电流。电压产生电路34接收补充电流并将其转换成补充电压。 由电流发生电路32接收的电流产生的电压和由补偿电路36接收的补充电流产生的补充电压的总和产生稳定的参考电压。

    Frame member and assembly for carrying electrical signals and the like
    368.
    发明授权
    Frame member and assembly for carrying electrical signals and the like 失效
    用于承载电信号的框架构件和组件等

    公开(公告)号:US5298681A

    公开(公告)日:1994-03-29

    申请号:US871163

    申请日:1992-04-20

    CPC classification number: H05K7/183 H02B1/01 H02B1/202 H02B1/013 H02B1/014

    Abstract: A frame assembly for affording mechanical support and for carrying electrical conduction paths for connection to circuitry of a machine. The frame assembly includes members comprising pultrusions having an insulating body and reinforcing fibers within the insulating body, and has grooves in surface portions along an elongated dimension with conductors in the grooves. The conductors provide electrical conduction paths that are connectable to circuitry of the machine. The pultrusion may be a thermal setting polymer, for example, selected from the group consisting essentially of polyester, vinyl ester, and epoxies, and may be reinforced with fiberglass. The frame member can also have a hollow interior portion within which conductors are arranged to conduct AC power to the circuitry of the machine, and the conductors on the exterior surface of the frame member can be arranged to conduct IIOC bus signals. When a plurality of the frame members are connected together to form a frame assembly, corresponding conductors of each are interconnected to facilitate supplying and directing the electrical signals to the machine. The connections can be made to and among the electrical conductors carried by the pultrusions by blocks that are attachable to the pultrusions.

    Abstract translation: 一种用于提供机械支撑和用于承载用于连接到机器的电路的导电路径的框架组件。 框架组件包括具有在绝缘体内具有绝缘体和增强纤维的拉挤成型体的构件,并且在凹槽中具有导体的细长尺寸的表面部分具有凹槽。 导体提供可连接到机器电路的导电路径。 拉挤成型可以是热定形聚合物,例如,选自基本上由聚酯,乙烯基酯和环氧树脂组成的组,并且可以用玻璃纤维增​​强。 框架构件还可以具有中空的内部部分,导体布置成在该内部部分中将AC电力传导到机器的电路,并且框架构件的外表面上的导体可布置成传导IIOC总线信号。 当多个框架构件连接在一起以形成框架组件时,每个框架构件的相应导体互连,以便于将电信号提供并引导到机器。 可以通过可附接到拉挤挤压件的块,通过拉挤成型器携带的电导体之间和之间的连接。

    System and method for automated selection of equipment for purchase
through input of user desired specifications
    370.
    发明授权
    System and method for automated selection of equipment for purchase through input of user desired specifications 失效
    通过输入用户所需规格自动选择设备进行购买的系统和方法

    公开(公告)号:US4992940A

    公开(公告)日:1991-02-12

    申请号:US322105

    申请日:1989-03-13

    Inventor: Ross E. Dworkin

    CPC classification number: G07F11/002 G06Q10/087 G06Q30/0627 G06Q30/0633

    Abstract: An automated system assists a user in locating and purchasing goods or services sold by a plurality of vendors. The system includes a programmed computer which is linked to a database. The database contains information about a large number of different products and/or services, arranged in various categories. For each product or service, the database contains information on price, vendor, specifications and/or availability. In operating the system, the user first indicates the general type of product or service desired. The system responds by displaying a template giving specifications for the type of product or service selected. The user then fills in one or more blank spaces in the template, to tell the system the minimum desired specifications for the product or service. The computer then searches the database to retrieve all products or services, within the product or service category selected, having the specifications required by the user. The system display such products or services to the user, who can request more detailed information about a particular product or service, or information on vendors and prices. The user can then select one or more items for immediate purchase, and the system automatically transmits the order to the appropriate vendor.

    Abstract translation: 自动化系统帮助用户定位和购买由多个供应商销售的商品或服务。 该系统包括与数据库链接的编程计算机。 该数据库包含有关大量不同产品和/或服务的信息,这些信息按各种类别排列。 对于每个产品或服务,数据库包含有关价格,供应商,规格和/或可用性的信息。 在操作系统时,用户首先指示所需的产品或服务的一般类型。 系统通过显示一个模板来提供所选产品或服务类型的规范。 用户然后填写模板中的一个或多个空白处,以告知系统产品或服务的最低期望规格。 然后,计算机搜索数据库以检索所选择的产品或服务类别中具有用户要求的规格的所有产品或服务。 系统向用户显示这些产品或服务,谁可以请求更多关于特定产品或服务的详细信息,或有关供应商和价格的信息。 然后,用户可以选择一个或多个物品以立即购买,并且系统自动将订单发送给适当的供应商。

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