Radio Frequency Power Delivery System
    1.
    发明申请
    Radio Frequency Power Delivery System 有权
    射频供电系统

    公开(公告)号:US20120262064A1

    公开(公告)日:2012-10-18

    申请号:US13368920

    申请日:2012-02-08

    Abstract: A system and method are provided for delivering power to a dynamic load. The system includes a power supply providing DC power having a substantially constant power open loop response, a power amplifier for converting the DC power to RF power, a sensor for measuring voltage, current and phase angle between voltage and current vectors associated with the RF power, an electrically controllable impedance matching system to modify the impedance of the power amplifier to at least a substantially matched impedance of a dynamic load, and a controller for controlling the electrically controllable impedance matching system. The system further includes a sensor calibration measuring module for determining power delivered by the power amplifier, an electronic matching system calibration module for determining power delivered to a dynamic load, and a power dissipation module for calculating power dissipated in the electrically controllable impedance matching system.

    Abstract translation: 提供了一种将功率传递给动态负载的系统和方法。 该系统包括提供具有基本上恒定的功率开环响应的DC电力的电源,用于将DC功率转换为RF功率的功率放大器,用于测量与RF功率相关联的电压和电流矢量之间的电压,电流和相位角的传感器 ,电可控阻抗匹配系统,用于将功率放大器的阻抗修改为动态负载的至少基本匹配的阻抗;以及用于控制电可控阻抗匹配系统的控制器。 该系统还包括用于确定由功率放大器输出的功率的传感器校准测量模块,用于确定输送到动态负载的功率的电子匹配系统校准模块,以及用于计算在电气可控阻抗匹配系统中消耗的功率的功率耗散模块。

    Radio frequency power delivery system
    2.
    发明授权
    Radio frequency power delivery system 有权
    射频发射系统

    公开(公告)号:US07764140B2

    公开(公告)日:2010-07-27

    申请号:US11554979

    申请日:2006-10-31

    CPC classification number: H03F1/56 H03F3/191 H03F3/20

    Abstract: A system and method are provided for delivering power to a dynamic load. The system includes a power supply providing DC power having a substantially constant power open loop response, a power amplifier for converting the DC power to RF power, a sensor for measuring voltage, current and phase angle between voltage and current vectors associated with the RF power, an electrically controllable impedance matching system to modify the impedance of the power amplifier to at least a substantially matched impedance of a dynamic load, and a controller for controlling the electrically controllable impedance matching system. The system further includes a sensor calibration measuring module for determining power delivered by the power amplifier, an electronic matching system calibration module for determining power delivered to a dynamic load, and a power dissipation module for calculating power dissipated in the electrically controllable impedance matching system.

    Abstract translation: 提供了一种将功率传递给动态负载的系统和方法。 该系统包括提供具有基本上恒定的功率开环响应的DC电力的电源,用于将DC功率转换为RF功率的功率放大器,用于测量与RF功率相关联的电压和电流矢量之间的电压,电流和相位角的传感器 ,电可控阻抗匹配系统,用于将功率放大器的阻抗修改为动态负载的至少基本匹配的阻抗;以及用于控制电可控阻抗匹配系统的控制器。 该系统还包括用于确定由功率放大器输出的功率的传感器校准测量模块,用于确定输送到动态负载的功率的电子匹配系统校准模块,以及用于计算在电气可控阻抗匹配系统中消耗的功率的功率耗散模块。

    Power holdup circuit
    4.
    发明授权
    Power holdup circuit 有权
    电源保持电路

    公开(公告)号:US06879140B2

    公开(公告)日:2005-04-12

    申请号:US10606206

    申请日:2003-06-25

    CPC classification number: H02J9/061

    Abstract: A power holdup circuit including a monitoring circuit and a power holdup circuit. The monitoring circuit includes an average voltage comparator and an absolute voltage comparator which cooperate to detect a voltage drop in the voltage supplied by the power supply. The monitoring circuit also includes a timer to determine the time period of the voltage dropout. If a predetermined voltage dropout event occurs, the monitoring circuit generates a control signal to a switching component which activates a holdup power source. The holdup power source includes an energy storage device that stores energy to maintain the supply voltage during dropout periods.

    Abstract translation: 一种功率保持电路,包括监视电路和功率保持电路。 监视电路包括一个平均电压比较器和一个绝对电压比较器,它们协调检测由电源提供的电压的电压降。 监控电路还包括一个定时器,用于确定电压降的时间周期。 如果发生预定的电压脱落事件,则监视电路产生一个控制信号给切换组件,该开关组件激活一个保持电源。 保持电源包括能量存储装置,其储存能量以在压差期间维持供电电压。

    ELECTROSURGICAL DEVICE WITH CONTROLLABLE ELECTRIC FIELD PROFILE
    6.
    发明申请
    ELECTROSURGICAL DEVICE WITH CONTROLLABLE ELECTRIC FIELD PROFILE 审中-公开
    具有可控电场剖面的电磁装置

    公开(公告)号:US20130331834A1

    公开(公告)日:2013-12-12

    申请号:US13957032

    申请日:2013-08-01

    Abstract: An electrosurgical device includes a plurality of electrodes arranged to form a tissue treatment surface and a power supply. The power supply is configured to deliver a first drive signal with a first phase to at least a first one of the plurality of electrodes and a second drive signal with a second phase to at least a second one of the plurality of electrodes such that an electric field extends from the tissue treatment surface, where the first phase and the second phase are different. The power supply is further configured to receive an input from an operator of the electrosurgical device, and adjust the first phase or the second phase such that an aspect of the electric field extending from the tissue treatment surface changes in response to the input from the operator.

    Abstract translation: 电外科装置包括布置成形成组织处理表面的多个电极和电源。 电源被配置为将具有第一相的第一驱动信号传递到多个电极中的至少第一电极,以及具有第二相位的第二驱动信号到多个电极中的至少第二电极,使得电 场从组织处理表面延伸,其中第一相和第二相不同。 电源还被配置为接收来自电外科设备的操作者的输入,并且调整第一相或第二相,使得从组织处理表面延伸的电场的一个方面响应于来自操作者的输入而改变 。

    Electrosurgical Device with Controllable Electric Field Profile
    8.
    发明申请
    Electrosurgical Device with Controllable Electric Field Profile 有权
    具有可控电场分布的电外科手术装置

    公开(公告)号:US20100145329A1

    公开(公告)日:2010-06-10

    申请号:US12607563

    申请日:2009-10-28

    Abstract: An electrosurgical device includes a plurality of electrodes arranged to form a tissue treatment surface and a power supply. The power supply is configured to deliver a first drive signal with a first phase to at least a first one of the plurality of electrodes and a second drive signal with a second phase to at least a second one of the plurality of electrodes such that an electric field extends from the tissue treatment surface, where the first phase and the second phase are different. The power supply is further configured to receive an input from an operator of the electrosurgical device, and adjust the first phase or the second phase such that an aspect of the electric field extending from the tissue treatment surface changes in response to the input from the operator.

    Abstract translation: 电外科装置包括布置成形成组织处理表面的多个电极和电源。 电源被配置为将具有第一相的第一驱动信号传递到多个电极中的至少第一电极,以及具有第二相位的第二驱动信号到多个电极中的至少第二电极,使得电 场从组织处理表面延伸,其中第一相和第二相不同。 电源还被配置为接收来自电外科设备的操作者的输入,并且调整第一相或第二相,使得从组织处理表面延伸的电场的一个方面响应于来自操作者的输入而改变 。

    Power supply controller to actively drive a load current when the load current exceeds a set point
    10.
    发明授权
    Power supply controller to actively drive a load current when the load current exceeds a set point 有权
    电源控制器在负载电流超过设定值时主动驱动负载电流

    公开(公告)号:US07616462B2

    公开(公告)日:2009-11-10

    申请号:US11077555

    申请日:2005-03-09

    CPC classification number: H02M7/53871 H02M1/32

    Abstract: A control circuit for a switching power supply reacts to an over current condition in the switching power supply to bring its operating point to a safe condition. The control circuit senses both the direction and the magnitude of the load current in the switching power supply, and then uses this sensed information to control the active power switches in the switching power supply. In an over current condition, the switches are controlled to actively drive the load current toward zero, even if the sensed information is delayed or heavily filtered, or the switch signals from the control circuit are delayed in reaching the switches. The resulting operation of the switching power supply is more resistant to abnormal load conditions and is maintained in the presence of transient short circuits or arcs. The switching power supply hardware is also better protected.

    Abstract translation: 用于开关电源的控制电路对开关电源中的过电流状态作出反应,使其工作点处于安全状态。 控制电路感测开关电源中的负载电流的方向和幅度,然后使用该感测信息来控制开关电源中的有功功率开关。 在过电流条件下,即使感测到的信息被延迟或严重过滤,或者来自控制电路的开关信号在到达开关时延迟,开关被控制为主动驱动负载电流朝向零。 所产生的开关电源的操作更能抵抗异常的负载状况,并且在瞬时短路或电弧的存在下保持。 开关电源硬件也受到更好的保护。

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