公开(公告)号：US20140306671A1

公开(公告)日：2014-10-16

申请号：US13862135

申请日：2013-04-12

申请人： KEITHLEY INSTRUMENTS, INC.

发明人： Kevin Cawley ,  Wayne Goeke ,  Gregory Sobolewski

IPC分类号： G05F1/575

CPC分类号： G05F1/575 ,  G01R31/31721 ,  H04M1/24

摘要： A system can include a device under test (DUT) having a DUT voltage, a cable connected to the DUT, the cable having a cable inductance, and a power supply configured as a current source to provide a wide bandwidth voltage source to the DUT, wherein the DUT voltage is independent of the cable inductance.

摘要翻译： 系统可以包括具有DUT电压的被测设备（DUT），连接到DUT的电缆，具有电缆电感的电缆以及被配置为电流源的电源以向DUT提供宽带宽电压源， 其中DUT电压独立于电缆电感。

公开(公告)号：US20140285181A1

公开(公告)日：2014-09-25

申请号：US13849265

申请日：2013-03-22

申请人： Keithley Instruments, Inc.

发明人： Wayne Goeke

IPC分类号： G01R19/25

CPC分类号： G01R19/2503 ,  G01R15/22

摘要： A system may include two input terminals, e.g., HI and LO, and a floating circuit that is physically separate from the input terminals and includes a gain amplifier. The floating circuit can be surrounded by a conductive enclosure that is electrically connected to the second input terminal. The floating circuit can further switch between input signals received from the first and second input terminals to the gain amplifier and the floating circuit ground.

摘要翻译： 系统可以包括两个输入端子，例如，HI和LO，以及物理上与输入端子分离并包括增益放大器的浮置电路。 浮动电路可以被电连接到第二输入端子的导电外壳包围。 浮动电路可以进一步在从第一和第二输入端子接收的输入信号之间切换到增益放大器和浮置电路接地。

公开(公告)号：US10802520B2

公开(公告)日：2020-10-13

申请号：US13862135

申请日：2013-04-12

申请人： Keithley Instruments, Inc.

发明人： Kevin Cawley ,  Wayne Goeke ,  Gregory Sobolewski

IPC分类号： G05F1/575 ,  G01R31/317 ,  H04M1/24

摘要： A system can include a device under test (DUT) having a DUT voltage, a cable connected to the DUT, the cable having a cable inductance, and a power supply configured as a current source to provide a wide bandwidth voltage source to the DUT, wherein the DUT voltage is independent of the cable inductance.

公开(公告)号：US20140376201A1

公开(公告)日：2014-12-25

申请号：US13921550

申请日：2013-06-19

申请人： Keithley Instruments, Inc.

发明人： James A. Niemann ,  Gregory Sobolewski ,  Martin J. Rice ,  Wayne Goeke

IPC分类号： H05K1/02 ,  H05K3/40 ,  H05K3/46 ,  H05K3/30

CPC分类号： H05K1/0213 ,  H05K1/0225 ,  H05K1/0256 ,  H05K1/142 ,  H05K1/145 ,  H05K3/306 ,  H05K3/4038 ,  H05K3/4697 ,  H05K2201/0792 ,  H05K2201/09063 ,  H05K2201/093 ,  H05K2201/09618 ,  H05K2201/0969 ,  H05K2201/09981 ,  Y10T29/49139

摘要： A device with low dielectric absorption includes a printed circuit board (PCB), a component connection area including a first conductor layered on a top surface of the component connection area and a second conductor layered on a bottom surface of the component connection area, an aperture surrounding the component connection area, a low-leakage component connecting the component connection area to the PCB across the aperture, and a guard composed of a third conductor at least substantially surrounding the aperture on a top surface of the PCB and a fourth conductor at least substantially surrounding the aperture on a bottom surface of the PCB.

摘要翻译： 具有低介电吸收率的器件包括印刷电路板（PCB），包括层叠在部件连接区域的顶表面上的第一导体的部件连接区域和层叠在部件连接区域的底表面上的第二导体， 围绕部件连接区域，将部件连接区域连接到穿过孔的PCB的低泄漏部件以及由至少基本上围绕PCB顶表面上的孔的第三导体组成的防护件和至少 基本上围绕PCB的底表面上的孔。

公开(公告)号：US09541584B2

公开(公告)日：2017-01-10

申请号：US13849265

申请日：2013-03-22

申请人： Keithley Instruments, Inc.

发明人： Wayne Goeke

IPC分类号： G01R1/30 ,  G01R17/16 ,  G01R19/00 ,  G01R19/25 ,  G01R15/22

CPC分类号： G01R19/2503 ,  G01R15/22

摘要： A system may include two input terminals, e.g., HI and LO, and a floating circuit that is physically separate from the input terminals and includes a gain amplifier. The floating circuit can be surrounded by a conductive enclosure that is electrically connected to the second input terminal. The floating circuit can further switch between input signals received from the first and second input terminals to the gain amplifier and the floating circuit ground.

摘要翻译： 系统可以包括两个输入端子，例如，HI和LO，以及物理上与输入端子分离并包括增益放大器的浮置电路。 浮动电路可以被电连接到第二输入端子的导电外壳包围。 浮动电路可以进一步在从第一和第二输入端子接收的输入信号之间切换到增益放大器和浮置电路接地。

公开(公告)号：US09326369B2

公开(公告)日：2016-04-26

申请号：US13921550

申请日：2013-06-19

申请人： Keithley Instruments, Inc.

发明人： James A. Niemann ,  Gregory Sobolewski ,  Martin J. Rice ,  Wayne Goeke

IPC分类号： H05K1/02 ,  H05K3/40 ,  H05K3/46 ,  H05K3/30 ,  H05K1/14

CPC分类号： H05K1/0213 ,  H05K1/0225 ,  H05K1/0256 ,  H05K1/142 ,  H05K1/145 ,  H05K3/306 ,  H05K3/4038 ,  H05K3/4697 ,  H05K2201/0792 ,  H05K2201/09063 ,  H05K2201/093 ,  H05K2201/09618 ,  H05K2201/0969 ,  H05K2201/09981 ,  Y10T29/49139

摘要： A device with low dielectric absorption includes a printed circuit board (PCB), a component connection area including a first conductor layered on a top surface of the component connection area and a second conductor layered on a bottom surface of the component connection area, an aperture surrounding the component connection area, a low-leakage component connecting the component connection area to the PCB across the aperture, and a guard composed of a third conductor at least substantially surrounding the aperture on a top surface of the PCB and a fourth conductor at least substantially surrounding the aperture on a bottom surface of the PCB.

摘要翻译： 具有低介电吸收率的器件包括印刷电路板（PCB），包括层叠在部件连接区域的顶表面上的第一导体的部件连接区域和层叠在部件连接区域的底表面上的第二导体， 围绕部件连接区域，将部件连接区域连接到穿过孔的PCB的低泄漏部件以及由至少基本上围绕PCB顶表面上的孔的第三导体组成的防护件和至少 基本上围绕PCB的底表面上的孔。