公开(公告)号：US20130085692A1

公开(公告)日：2013-04-04

申请号：US13607969

申请日：2012-09-10

Applicant: Hyun Suk LEE ,  Won Jin BAEK ,  Yun Hee LEE

Inventor： Hyun Suk LEE ,  Won Jin BAEK ,  Yun Hee LEE

IPC: G06F19/00

CPC classification number: G01R21/06 ,  H04B2203/5408 ,  H04B2203/5433

Abstract: Disclosed herein is a power measurement system capable of power of electric devices without performing a quantization process through a separate analog-digital converter for voltage. The power measurement system includes a smart meter measuring a voltage root mean square value input to an electrical device; and a power measurement device measuring power of the electrical equipment using a voltage root mean square value Vrms measured by the smarter meter and a current instantaneous values of power lines connected to the electric device.

Abstract translation: 这里公开了一种功率测量系统，其能够通过用于电压的单独模数转换器执行量化处理的电力装置的功率。 功率测量系统包括测量输入到电气设备的电压均方根值的智能电表; 以及功率测量装置，其使用由智能仪表测量的电压均方根值Vrms和连接到电气装置的电力线的电流瞬时值来测量电气设备的功率。

公开(公告)号：US20070077905A1

公开(公告)日：2007-04-05

申请号：US11469274

申请日：2006-08-31

Applicant: Seung Min OH ,  Won Jin BAEK

Inventor： Seung Min OH ,  Won Jin BAEK

IPC: H04B1/40 ,  H04B1/06

CPC classification number: H03B27/00 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B2200/0078

Abstract: In a quadrature voltage controlled oscillator, a first oscillator includes a first resonant circuit for generating a preset first resonant frequency and a first pair of cross-coupled transistors for supplying energy to the first resonant frequency to generate first and second signals having a phase difference of 180°. A second oscillator includes a second resonant circuit for generating a preset second resonant frequency and a second pair of cross-coupled transistors for generating third and fourth signals for supplying energy to the second resonant frequency having a phase difference of 180°. A first current source is connected between a first common node of the first cross-coupled transistor pair and a ground. A second current source is connected between a second common node of the second cross-coupled transistor pair and the ground. A differential load is connected between a third common node of the first and second current sources and the ground.

Abstract translation: 在正交压控振荡器中，第一振荡器包括用于产生预设的第一谐振频率的第一谐振电路和用于向第一谐振频率提供能量的第一对交叉耦合晶体管，以产生具有相位差的第一和第二信号 180°。 第二振荡器包括用于产生预设的第二谐振频率的第二谐振电路和用于产生用于向具有180°的相位差的第二谐振频率提供能量的第三和第四信号的第二对交叉耦合晶体管。 第一电流源连接在第一交叉耦合晶体管对的第一公共节点和地之间。 第二电流源连接在第二交叉耦合晶体管对的第二公共节点和地之间。 差分负载连接在第一和第二电流源的第三公共节点与地之间。