公开(公告)号：US08669758B2

公开(公告)日：2014-03-11

申请号：US13949031

申请日：2013-07-23

Applicant: Broadcom Corporation

Inventor： Iain Barnett ,  William Michael James Holland ,  Jonathan Ephraim David Hurwitz

IPC: G01R19/00

CPC classification number: H05K1/162 ,  G01R15/06 ,  G01R15/16 ,  G01R19/12 ,  G01R19/175 ,  H03H7/004 ,  H05K1/0239 ,  H05K1/0256 ,  H05K2201/09309 ,  H05K2201/09972

Abstract: A voltage measurement circuit is operative to measure a high voltage AC signal and includes a capacitive divider circuit and a compensator circuit. The capacitive divider circuit includes first and second inputs, across which, in use, is received a high voltage AC signal and also includes second and third capacitors. First and second plates of each of the first, second and third capacitors are defined by conductive layers of a printed circuit board and the dielectric of each of the first, second and third capacitors being defined by a non-conducting part of the printed circuit board. A compensator circuit has a configurable transfer function and includes an input connected across the first and second plates of the third capacitor and an output. The compensator circuit is operative to change a voltage received at its input in accordance with the transfer function and to provide the changed voltage at its output.

Abstract translation: 电压测量电路用于测量高压AC信号，并包括电容分压器电路和补偿电路。 电容分压器电路包括第一和第二输入，在使用中，它们被接收高压AC信号，并且还包括第二和第三电容器。 第一，第二和第三电容器中的每一个的第一和第二板由印刷电路板的导电层限定，并且第一，第二和第三电容器中的每一个的电介质由印刷电路板的非导电部分限定 。 补偿电路具有可配置的传递函数，并且包括连接在第三电容器的第一和第二板上的输入端和输出端。 补偿电路可操作以根据传递函数改变其输入处接收的电压，并在其输出端提供改变的电压。

公开(公告)号：US20150257271A1

公开(公告)日：2015-09-10

申请号：US14718704

申请日：2015-05-21

Applicant: BROADCOM CORPORATION

Inventor： Iain Barnett ,  William Michael James Holland ,  Jonathan Ephraim David Hurwitz

IPC: H05K1/16 ,  G01R19/175 ,  H03H7/00

CPC classification number: H05K1/162 ,  G01R15/06 ,  G01R15/16 ,  G01R19/12 ,  G01R19/175 ,  H03H7/004 ,  H05K1/0239 ,  H05K1/0256 ,  H05K2201/09309 ,  H05K2201/09972

Abstract: A signal level crossing detector circuit includes a DC isolator and a detector circuit. The DC isolator has at least a first input, which is operable to receive a high voltage AC signal, and at least a first capacitor, a first plate of the first capacitor being electrically connected to the first input. The detector circuit is operable at a low voltage and has at least a first detector input, the first detector input being electrically connected to a second plate of the first capacitor, the low voltage detector circuit being operable to provide a change in output signal in dependence on a high voltage AC signal on the first input crossing a predetermined signal level. The signal level crossing detector may be single ended or differential.

Abstract translation: 信号电平交叉检测器电路包括直流隔离器和检测器电路。 DC隔离器具有至少第一输入，其可操作以接收高压AC信号，以及至少第一电容器，第一电容器的第一板电连接到第一输入端。 检测器电路可在低电压下操作并且具有至少第一检测器输入，第一检测器输入电连接到第一电容器的第二板，低电压检测器电路可操作以依次提供输出信号的变化 在第一输入端上的高电压AC信号上穿过预定的信号电平。 信号电平交叉检测器可以是单端或差分。

公开(公告)号：US20130314108A1

公开(公告)日：2013-11-28

申请号：US13949031

申请日：2013-07-23

Applicant: BROADCOM CORPORATION

Inventor： Iain Barnett ,  William Michael James Holland ,  Jonathan Ephraim David Hurwitz

IPC: G01R19/12

CPC classification number: H05K1/162 ,  G01R15/06 ,  G01R15/16 ,  G01R19/12 ,  G01R19/175 ,  H03H7/004 ,  H05K1/0239 ,  H05K1/0256 ,  H05K2201/09309 ,  H05K2201/09972

Abstract: A voltage measurement circuit is operative to measure a high voltage AC signal and includes a capacitive divider circuit and a compensator circuit. The capacitive divider circuit includes first and second inputs, across which, in use, is received a high voltage AC signal and also includes second and third capacitors. First and second plates of each of the first, second and third capacitors are defined by conductive layers of a printed circuit board and the dielectric of each of the first, second and third capacitors being defined by a non-conducting part of the printed circuit board. A compensator circuit has a configurable transfer function and includes an input connected across the first and second plates of the third capacitor and an output. The compensator circuit is operative to change a voltage received at its input in accordance with the transfer function and to provide the changed voltage at its output.

Abstract translation: 电压测量电路用于测量高压AC信号，并包括电容分压器电路和补偿电路。 电容分压器电路包括第一和第二输入，在使用中，它们被接收高压AC信号，并且还包括第二和第三电容器。 第一，第二和第三电容器中的每一个的第一和第二板由印刷电路板的导电层限定，并且第一，第二和第三电容器中的每一个的电介质由印刷电路板的非导电部分限定 。 补偿电路具有可配置的传递函数，并且包括连接在第三电容器的第一和第二板上的输入端和输出端。 补偿电路可操作以根据传递函数改变其输入处接收的电压，并在其输出端提供改变的电压。