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187 条记录 (耗时 0.019 秒)

    BUFFER CIRCUIT AND DRIVER CIRCUIT
    3.
    发明公开
    BUFFER CIRCUIT AND DRIVER CIRCUIT 有权
    BUFFER电路和驱动电路

    公开(公告)号：EP1703291A4

    公开(公告)日：2009-07-01

    申请号：EP04820209

    申请日：2004-12-07

    申请人： ADVANTEST CORP

    发明人： MATSUMOTO NAOKI

    IPC分类号： G01R31/317 ,  G01R31/319

    CPC分类号： G01R31/31924 ,  G01R31/31713

    摘要： A buffer circuit comprises an output circuit that keeps the output impedance constant and that outputs an output signal having an output voltage that is approximately the same as the input voltage of an input signal; first and second transistors that are series connected to respective terminals of the output circuit and that supply, to the respective terminals thereof, voltages in accordance with the magnitude of the input or output voltage so as to reduce the power consumption in the output circuit for protection thereof; a first base voltage control unit that supplies a base voltage to the first transistor to control the first transistor; and a second base voltage control unit that supplies a base voltage to the second transistor to control the second transistor.

    CONFIGURABLE VOLTAGE REGULATOR
    4.
    发明公开
    CONFIGURABLE VOLTAGE REGULATOR 有权
    配置电压稳压器

    公开(公告)号：EP2038720A2

    公开(公告)日：2009-03-25

    申请号：EP07795014.5

    申请日：2007-05-18

    申请人： Marvell World Trade Ltd.

    发明人： SUTARDJA, Sehat

    IPC分类号： G05F1/00 ,  G01R31/28

    CPC分类号： G01R31/31924

    摘要： A testing system comprises a configurable integrated circuit that selectively communicates with one or more of N external impedances, that has M predetermined configurations that are selected based on an electrical characteristic of the one or more of the N external impedances, where N and M are integers greater than one. The configurable integrated circuit generates a selected one of M discrete values of an output characteristic of the configurable integrated circuit based on the selected one of the M predetermined configurations. An integrated circuit is tested in accordance with an output of the configurable integrated circuit.

    POWER APPLYING CIRCUIT AND TESTING APPARATUS
    5.
    发明公开
    POWER APPLYING CIRCUIT AND TESTING APPARATUS 有权
    STROMANLEGESCHALTUNG UND TESTVORRICHTUNG

    公开(公告)号：EP2017633A1

    公开(公告)日：2009-01-21

    申请号：EP07715073.8

    申请日：2007-02-28

    申请人： ADVANTEST CORPORATION

    发明人： HIRATA, Kazunari ,  SATOH, Tadaaki ,  NAGATA, Masahiro

    IPC分类号： G01R31/26

    CPC分类号： G01R31/31924

    摘要： There is provided an electric power applying circuit for applying a direct current power to a load. The electric power applying circuit includes an output buffer that (i) is supplied with, as power source voltages, positive and negative high voltages which are determined in accordance with a range of an applied voltage which is to be applied to the load, (ii) generates a voltage in accordance with an input voltage, within a range defined by the power source voltages, and (iii) applies the generated voltage to the load, a main amplifier that amplifies a voltage input thereto to generate the input voltage, and inputs the generated input voltage into the output buffer, wherein the main amplifier exhibits a higher accuracy in terms of voltage generation than the output buffer, and a floating power source that generates positive and negative floating voltages by using, as a reference, a voltage determined in accordance with a voltage output from the output buffer, and supplies the generated positive and negative floating voltages to the main amplifier as power source voltages thereof, wherein a difference in voltage between the positive and negative floating voltages is smaller than a difference in voltage between the positive and negative high voltages.

    摘要翻译： 提供了一种用于向负载施加直流电力的电力施加电路。 电力施加电路包括输出缓冲器，（i）作为电源电压供给根据施加到负载的施加电压的范围而确定的正，负高电压（ii） ）在由电源电压限定的范围内产生根据输入电压的电压，以及（iii）将所产生的电压施加到负载，放大输入电压以产生输入电压的主放大器，以及输入 将产生的输入电压输入到输出缓冲器中，其中主放大器在电压产生方面表现出比输出缓冲器更高的精度;以及浮动电源，通过使用以下方式确定的电压来产生正和负浮置电压： 根据来自输出缓冲器的电压输出，并将产生的正和负浮动电压作为其电源电压提供给主放大器， 控制正，负浮动电压之间的电压差小于正电压和负电压之间的电压差。

    VERFAHREN ZUR DIAGNOSE VON TREIBERAUSGÄNGEN UND DIAGNOSEPULSMANAGER
    6.
    发明授权
    VERFAHREN ZUR DIAGNOSE VON TREIBERAUSGÄNGEN UND DIAGNOSEPULSMANAGER 有权
    方法的诊断驱动器输出和诊断脉冲经理的

    公开(公告)号：EP1649298B1

    公开(公告)日：2008-05-28

    申请号：EP04766260.6

    申请日：2004-07-19

    申请人： Continental Automotive GmbH

    发明人： THIVEOS, Konstantin ,  LÄUFER, Andreas

    IPC分类号： G01R31/00 ,  G01R31/319

    CPC分类号： G01R31/31715 ,  G01R31/007 ,  G01R31/31924

    摘要： The invention relates to a method for the diagnosis of driver outputs (20) and to a diagnosis pulse manager (10) that can supply a pulse to a driver output (20) in order to carry out a diagnosis of said driver output. As a plurality of diagnosis pulses may be required simultaneously for the system requirements (12), a diagnosis pulse requirement register (14) and a diagnosis pulse execution register (16) are provided such that a plurality of simultaneous requirements (12) can be stored. On the basis of the buffering of requirements (12), a plurality of stored pulse requirements can be successively taken into account according to pre-determined rules.

    PROGRAMMABLE PIN ELECTRONICS DRIVER
    7.
    发明公开
    PROGRAMMABLE PIN ELECTRONICS DRIVER 审中-公开
    可编程引脚电子驱动器

    公开(公告)号：EP1910851A1

    公开(公告)日：2008-04-16

    申请号：EP06771594.6

    申请日：2006-05-26

    申请人： Teradyne, Inc.

    发明人： PERSONS, Thomas W.

    IPC分类号： G01R27/08

    CPC分类号： G01R31/31924

    摘要： Apparatus that provides an output voltage to a device under test (DUT) includes a reference waveform generator to provide a waveform having a predefined swing, where the waveform is an analog signal that is based on data, a digital-to-analog converter (DAC) to receive the waveform, to scale the waveform using a scaling factor to produce a scaled waveform, and to generate a current that corresponds to the scaled waveform, and a resistive circuit connected to a circuit path that leads to the DUT. The current passing through the resistive circuit produces a voltage drop. The output voltage is based, at least in part, on the voltage drop.