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    • 92. 发明申请
    • ADAPTIVE VOLTAGE DIVIDER WITH CORRECTED FREQUENCY CHARACTERISTIC FOR MEASURING HIGH VOLTAGES
    • 具有校正频率特性的自适应电压分压器用于测量高电压
    • US20140159701A1
    • 2014-06-12
    • US14236912
    • 2012-08-17
    • Jerzy Nabielec
    • Jerzy Nabielec
    • H03H7/24
    • H03H7/24G01R15/06
    • An adaptive voltage divider for measuring a high voltage between a ground terminal (GND) and a measurement terminal (U). It comprises a first branch comprising a first set of impedance elements (Z, R) forming a voltage divider circuit connected between the ground terminals (GND) and the measurement terminal (U) and a voltage meter (AD2) configured to measure voltage on one of the impedance elements (Z, R) of the first branch. Furthermore, it comprises a second branch comprising a second set of impedance elements (Q, P) connected between the ground terminal (GND) and the measurement terminal (U) and switchable between a plurality of configurations, wherein in at least one configuration the second set of impedance elements (Q, P) forms a voltage divider circuit, and voltage meters (AD1, AD3) configured to measure voltage on at least one of the impedance elements (Q, P) of the second branch. Moreover, a control circuit (DCSS) is configured to consecutively switch the configuration of the second branch between the plurality of configurations thereof, such that the relationships between the values of impedance elements (Z, R) of the first branch and the values of impedance elements (Q, P) of the second branch can be determined for consecutive configurations of the second branch as a function of the outputs of the voltage meters (AD1, AD2, AD3) and the total transmittance of the voltage divider can be determined at any instance as a function of the outputs of the voltage meters (AD1, AD2, AD3).
    • 用于测量接地端子(GND)和测量端子(U)之间的高电压的自适应分压器。 它包括第一分支,包括形成连接在接地端子(GND)和测量端子(U)之间的分压器电路的第一组阻抗元件(Z,R)和配置成测量一个电压的电压计(AD2) 的第一分支的阻抗元件(Z,R)。 此外,它包括第二分支,包括连接在接地端子(GND)和测量端子(U)之间的第二组阻抗元件(Q,P),并且可在多个配置之间切换,其中在至少一个配置中,第二组 一组阻抗元件(Q,P)形成分压电路,电压计(AD1,AD3)被配置为测量第二支路的至少一个阻抗元件(Q,P)上的电压。 此外,控制电路(DCSS)被配置为在其多个配置之间连续地切换第二分支的配置,使得第一分支的阻抗元件(Z,R)的值与阻抗值之间的关系 可以根据电压表(AD1,AD2,AD3)的输出的函数确定第二分支的连续配置的第二分支的元件(Q,P),并且分压器的总透射率可以在任何 作为电压表(AD1,AD2,AD3)的输出的函数。
    • 93. 发明申请
    • SELECTIVE VARIABLE ATTENUATION CIRCUITRY AND ASSOCIATED METHODS
    • 选择性的可变衰减电路和相关方法
    • US20130300523A1
    • 2013-11-14
    • US13466735
    • 2012-05-08
    • Michael S. Johnson
    • Michael S. Johnson
    • H03H7/24
    • H03H7/24H01P1/22
    • Variable capacitive attenuation circuitry and associated methods are disclosed that may be implemented to employ a plurality of multi-purpose capacitors that may be selectably coupled together in different configurations to form a capacitive divider having different respective attenuation properties. In a particular embodiment, each of the capacitors of the disclosed capacitive attenuation circuitry may be selectably coupled to an RF reference as either a shunt capacitor or coupled in series between an RF signal input and an attenuated RF signal output as a series capacitor, thus forming a capacitive divider having selected attenuation properties. The disclosed variable capacitive attenuation circuitry may be advantageously utilized to attenuate an input RF signal and to provide a resulting attenuated RF output signal, for example, in the front end of RF receiver circuitry.
    • 公开了可变容性衰减电路和相关方法,其可以被实现为采用多个可以可选择地以不同配置耦合在一起的多用途电容器,以形成具有不同相应衰减特性的电容分压器。 在特定实施例中,所公开的电容衰减电路的每个电容器可以选择地耦合到作为分流电容器的RF参考电压,或串联连接在RF信号输入端和作为串联电容器的衰减的RF信号之间,从而形成 具有选择的衰减特性的电容分压器。 所公开的可变容性衰减电路可以有利地用于衰减输入RF信号,并且例如在RF接收机电路的前端提供产生的衰减的RF输出信号。
    • 95. 发明申请
    • HDMI RECEIVER
    • HDMI接收器
    • US20120169438A1
    • 2012-07-05
    • US12980878
    • 2010-12-29
    • Tapas NANDYNitin GUPTA
    • Tapas NANDYNitin GUPTA
    • H03H7/24H03L5/00
    • H03F3/45928H03F3/45475H03F2200/294H03F2200/411H03F2203/45544H03F2203/45594H03F2203/45596H03F2203/45631H03F2203/45702
    • An embodiment of a transmitter includes an amplifier having first and second differential output nodes, a first supply node, a first pull-up impedance having a first node coupled to the first differential output node and having a second node coupled to the supply node, and a second pull-up impedance having a first node coupled to the second differential output node and having a second node coupled to the supply node. An embodiment of a receiver includes an amplifier having first and second differential input nodes, a first supply node, a first pull-up impedance having a first node coupled to the first differential input node and having a second node coupled to the supply node, and a second pull-up impedance having a first node coupled to the second differential input node and having a second node coupled to the supply node. In an embodiment, the transmitter and receiver are capacitively coupled to one another.
    • 发射机的实施例包括具有第一和第二差分输出节点的放大器,第一供电节点,第一上拉阻抗,其具有耦合到第一差分输出节点的第一节点并且具有耦合到供电节点的第二节点,以及 第二上拉阻抗,其具有耦合到所述第二差分输出节点并且具有耦合到所述电源节点的第二节点的第一节点。 接收机的实施例包括具有第一和第二差分输入节点的放大器,第一供电节点,第一上拉阻抗,其具有耦合到第一差分输入节点的第一节点并且具有耦合到供应节点的第二节点,以及 第二上拉阻抗,其具有耦合到所述第二差分输入节点并具有耦合到所述电源节点的第二节点的第一节点。 在一个实施例中,发射机和接收机彼此电容耦合。
    • 96. 发明申请
    • HIGH-VOLTAGE WIDEBAND PULSE ATTENUATOR HAVING ATTENUATION VALUE SELF-CORRECTION FUNCTION
    • 具有衰减值自校正功能的高电压宽带脉冲抑制器
    • US20120086528A1
    • 2012-04-12
    • US13167894
    • 2011-06-24
    • Seung Kab RyuKyung Hoon Lee
    • Seung Kab RyuKyung Hoon Lee
    • H03H7/24
    • H01P1/225H01P1/2007H01P5/12
    • Provided is a high voltage wideband pulse attenuator having an attenuation value self-correction function. The high voltage wideband pulse attenuator includes an input unit for receiving a pulse signal, a T-shaped attenuator circuit for attenuating the pulse signal, an output unit for outputting the pulse signal attenuated by the attenuator circuit, and a capacitive divider circuit for dividing a voltage of the pulse signal input through the input unit or the pulse signal attenuated by the attenuator circuit. Using the capacitive divider circuit, the high voltage wideband pulse attenuator can easily measure an error of an attenuation value caused by a change in the resistance of T-shaped array resistor units in a process of attenuating an input pulse signal of tens of kV or more. In particular, the pulse attenuator can measure its performance by itself without test assisting devices, and check a state of an attenuated pulse in real-time.
    • 提供具有衰减值自校正功能的高电压宽带脉冲衰减器。 高电压宽带脉冲衰减器包括用于接收脉冲信号的输入单元,用于衰减脉冲信号的T形衰减器电路,用于输出由衰减器电路衰减的脉冲信号的输出单元,以及用于将 通过输入单元输入的脉冲信号的电压或由衰减器电路衰减的脉冲信号。 使用电容分压电路,高电压宽带脉冲衰减器可以容易地测量在衰减数十kV或更多输入脉冲信号的过程中由T形阵列电阻器单元的电阻变化引起的衰减值的误差 。 特别地,脉冲衰减器可以在没有测试辅助装置的情况下自己测量其性能,并且实时检查衰减脉冲的状态。