SYSTEM AND METHOD FOR ELECTRIC PULSE BASED ACTIVATION OF BIOLOGICAL SAMPLES

    公开(公告)号:US20190264160A1

    公开(公告)日:2019-08-29

    申请号:US15905463

    申请日:2018-02-26

    摘要: Disclosed herein are multi-cuvette cartridges, flow cells, and electrical pulse systems for treatment of large volumes of biological samples with pulsed electric fields. The multi-cuvette cartridges systems may include mechanical motors for automatic positioning and alignment between the cuvettes and the electrodes of the electrical pulse systems. The flow cell systems may include fluidic systems, such as pumps, nozzles and valves, which may operate in coordination with the electrical systems for efficient exposition of biological samples. Embodiments having flow cell systems that allow “on-demand” production of activated sample are also disclosed.

    GATE DRIVE DEVICES AND SWITCHING SYSTEMS
    4.
    发明申请

    公开(公告)号:US20190181857A1

    公开(公告)日:2019-06-13

    申请号:US16121216

    申请日:2018-09-04

    IPC分类号: H03K17/16 H03K17/30 H03K3/57

    摘要: A gate drive circuit device includes positive and negative pulse circuit portions each including a pulse diode and a pulse assembly connected in parallel with each other. The pulse assemblies each include another pulse diode and a resistor-capacitor assembly connected in series. The resistor-capacitor assembly includes a pulse resistor and a pulse capacitor connected in parallel. Each pulse circuit portion is connected with a different switch. Each pulse circuit portion is a passive device that is configured to activate a different switch responsive to receiving one or more voltage pulses from a power supply.

    Protection circuit assembly and method for high voltage systems

    公开(公告)号:US10262829B2

    公开(公告)日:2019-04-16

    申请号:US15249030

    申请日:2016-08-26

    摘要: A circuit assembly and method use a breakover device that changes states in response to a change in electric energy in a helper circuit that supplies current from a power source to a powered system. The helper circuit includes an inductive element connected with the powered system. The breakover device is in a non-conducting state prior to a discharge event from the powered system to prevent the current from the power source from being conducted through the resistive element. The breakover device changes to a conducting state responsive to the powered system discharging current into the helper circuit. The breakover device conducts the current that is discharged from the powered system through the resistive element to reduce the electric energy in the helper circuit from the current that is discharged.

    Downhole switch assemblies and methods

    公开(公告)号:US10110013B2

    公开(公告)日:2018-10-23

    申请号:US14808783

    申请日:2015-07-24

    IPC分类号: E21B43/12 H02J4/00

    摘要: A switch assembly includes one or more solid state semiconductor switches configured to be disposed within a downhole pipe assembly. The one or more switches are configured to operate in a closed state to conduct electric current supplied by a power source disposed above a surface to pumps disposed beneath the surface to cause the pumps to extract a resource from beneath the surface via the pipe assembly. The one or more switches also are configured to operate in an open state to stop conducting the electric current from the power source to the pumps.

    HYBRID DIRECT-CURRENT CIRCUIT BREAKER
    8.
    发明申请
    HYBRID DIRECT-CURRENT CIRCUIT BREAKER 有权
    混合直流电路断路器

    公开(公告)号:US20160105018A1

    公开(公告)日:2016-04-14

    申请号:US14510575

    申请日:2014-10-09

    IPC分类号: H02H9/02

    摘要: A circuit breaking system includes a first branch including at least one solid-state snubber; a second branch coupled in parallel to the first branch and including a superconductor and a cryogenic contactor coupled in series; and a controller operatively coupled to the at least one solid-state snubber and the cryogenic contactor and programmed to, when a fault occurs in the load circuit, activate the at least one solid-state snubber for migrating flow of the electrical current from the second branch to the first branch, and, when the fault is cleared in the load circuit, activate the cryogenic contactor for migrating the flow of the electrical current from the first branch to the second branch.

    摘要翻译: 断路系统包括包括至少一个固态缓冲器的第一分支; 第二分支并联耦合到第一分支并且包括串联耦合的超导体和低温接触器; 以及控制器,其可操作地耦合到所述至少一个固态缓冲器和所述低温接触器,并且被编程为当所述负载电路中发生故障时,激活所述至少一个固态缓冲器,用于使所述电流从所述第二 分支到第一分支,并且当故障在负载电路中被清除时,激活用于将电流从第一分支移动到第二分支的低温接触器。

    METHODS AND SYSTEMS FOR CONTROLLING VOLTAGE SWITCHING
    9.
    发明申请
    METHODS AND SYSTEMS FOR CONTROLLING VOLTAGE SWITCHING 审中-公开
    控制电压开关的方法和系统

    公开(公告)号:US20150264789A1

    公开(公告)日:2015-09-17

    申请号:US14211894

    申请日:2014-03-14

    IPC分类号: H05G1/32 H03K17/56

    摘要: Methods and systems for controlling voltage switching are provided. One system includes a transformer having primary and second windings, and a plurality of switching devices, wherein at least two of the switching devices are configured to produce different voltage outputs from a voltage input generated at the transformer. The plurality of switches are electrically referenced to one or more voltages. The system also includes a drive arrangement connected to the plurality of switches and configured to receive one or more voltage control pulses through the primary windings of the transformer, wherein the drive arrangement switches one or more of the plurality of switches based on the one or more voltage control pulses.

    摘要翻译: 提供了用于控制电压切换的方法和系统。 一个系统包括具有主绕组和第二绕组的变压器和多个开关装置,其中至少两个开关装置被配置为从变压器处产生的电压输入产生不同的电压输出。 多个开关以一个或多个电压为基准。 该系统还包括驱动装置,其连接到多个开关并且被配置为通过变压器的初级绕组接收一个或多个电压控制脉冲,其中驱动装置基于一个或多个开关来切换多个开关中的一个或多个 电压控制脉冲。