CN1138150C - 随负载电流补偿型电压取样测量电路 - Google Patents

随负载电流补偿型电压取样测量电路 Download PDF

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CN1138150C
CN1138150C CNB991115058A CN99111505A CN1138150C CN 1138150 C CN1138150 C CN 1138150C CN B991115058 A CNB991115058 A CN B991115058A CN 99111505 A CN99111505 A CN 99111505A CN 1138150 C CN1138150 C CN 1138150C
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杨泰和
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Priority to JP28940299A priority patent/JP2001116775A/ja
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0084Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2503Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40Testing power supplies

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  • General Physics & Mathematics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

本发明是有关于一种随负载电流补偿型电压取样测量电路,为依所检测标的负载电流的不同值为参数,对所取样测量的电压值作补偿修正,以转换显示为所拟读取标的值为特征。

Description

随负载电流补偿型电压取样测量电路
技术领域
本发明是关于一种随负载电流补偿型电压取样测量电路,特指依所检测标的负载电流的不同值为参数,对所取样测量的电压值作补偿修正,从而转换显示为所拟读取标的值。
背景技术
传统无论交流或直流电源恒具有内部阻抗,因此对其端电压的测量在空载、轻载、重载及过载时所检测端电压值,将随负载电流及内阻而变动,在负载变化频繁时检测其平均值极为不易。
发明内容
本发明的主要目的是提供一种随负载电流补偿型电压取样测量电路设计,其可依所检测标的负载电流的不同值为参数,对所取样测量的交流或直流电源无论在空载、轻载、重载、及过载时,对电压值作补偿修正,从而转换显示为所拟读取标的值。
附图说明
图1为本发明的随负载电流补偿电压取样测量电路的基本原理方块图。
具体实施方式
下面配合附图详细说明本发明的特征及优点:
图1为本发明的随负载电流补偿电压取样测量电路的基本原理方块图;
本发明随负载电流补偿型电压取样测量电路,如图1所示其电路主要构成单元如下:
电压值检测电路VD100:由机电装置或固态电子元件所构成,电压值检测电路VD100与可控阻抗调节电路VR100相串联再并联于电源,电压值检测电路VD100所检电压值供驱动独立构成的设定线性显示装置DP100,或由电压值检测电路VD100与设定线性显示装置DP100呈一体结构;线性显示装置包括由类比指针式或多段灯讯显示或数字型显示装置所构成;
电流值检测装置AD100:由机电装置或固态电子元件所构成,藉电流值检测装置AD100串联于电源与负载之间;以随负载电流的变化产生相对电能讯号,供直接操控可控阻抗调节电路VR100作相对设定的阻抗变化,以调节电压值检测电路VD100所检测的电压值;或依电路需要在电流值检测装置AD100与可控阻抗调节电路VR100之间,加设接口电路CD100以作放大、插值或线性修正或限制或其他设定功能;
可控阻抗调节电路VR100:由机电装置或固态电子元件构成,以接受电流值检测装置AD100的直接操控或接受接口电路CD100的操控以产生相对阻抗变化;
接口电路CD100:由机电装置或固态电子元件所构成,设置于电流检测装置AD100与可控阻抗调节电路VR100之间,以作放大、插值或线性修正或限制或其他设定功能,此项电路可依电路需要而设置或不设置;
设定线性显示装置DP100:含类比指针型或数字显示型或多阶灯讯号显示型等由机电装置或固态电子元件所构成的设定线性显示装置,以读取电压值或籍所检测电压值显示转换为所拟读取的标的值;此外除线性显示装置所构成外,亦可依应用需要选择进一步在类比指针型线性显示装置的内部加设机械式滞归阻尼,或随意停滞LATCH机构或在类比指针型或多阶显示型的电路输入端或数字显示型的类比数字转换器(A/D Converter)的类比输入端,加设延迟稳定电路(Debounce circuit)或每隔一段时间重新取样设定的周期锁定电路(LATCH)以避免高密度暂态负载变动造成显示变化频繁的读取困惑。
前述各项结构单元,可依机电装置及电子电路特征与结构需求,而由其中一项或一项以上结构单元共构在一起。

Claims (2)

1、一种随负载电流补偿型电压取样测量电路,为所检测标的负载电流的不同值为参数,对所取样测量的电压值作补偿修正,转换显示为所拟读取标的的值,其特征在于包含有:
电压值检测电路(VD100):由机电装置或固态电子元件所构成,电压值检测电路(VD100)与可控阻抗调节电路(VR100)相串联再并联于电源,电压值检测电路(VD100)所检电压值供驱动独立构成的设定线性显示装置(DP100),或由电压值检测电路(VD100)与设定线性显示装置(DP100)呈一体结构;线性显示装置包括由类比指针式或多段灯讯显示或数位型显示装置所构成;
电流值检测装置(AD100):由机电装置或固态电子元件所构成,藉电流值检测装置(AD100)串联于电源与负载之间;以随负载电流的变化产生相对电能讯号,供直接操控可控阻抗调节电路(VR100)作相对设定的阻抗变化,以调节电压值检测电路(VD100)所检测的电压值;或依电路需要在电流值检测装置(AD100)与可控阻抗调节电路(VR100)之间,加设介面电路(CD100)以作放大、插值或线性修正或限制;
可控抗调节电路(VR100):由机电装置或固态电子元件构成,以接受电流值检测装置(AD100)的直接操控或接受介面电路(CD100)的操控以产生相对阻抗变化;
介面电路(CD100):由机电装置或固态电子元件所构成,设置于电流检测装置(AD100)与可控阻抗调节电路(VR100)之间,以作放大、插值或线性修正或限制,此项电路可依电路需要而设置或不设置;
设定线性显示装置(DP100):含类比指针型或数位显示型或多阶灯讯号显示型由机电装置或固态电子元件所构成的设定线性显示装置,以读取电压值或籍所检测电压值显示转换为所拟读取的标的值。
2、如权利要求1所述的随负载电流补偿型电压取样测量电路,其特征在于:除可采用线性显示装置,亦可依应用需要选择进一步在类比指针型线性显示装置的内部加设机械式滞归阻尼,或随意停滞周期锁定电路(LATCH)机构或在类比指针型或多阶显示型的电路输入端或数字显示型的类比数字转换器的类比输入端,加设延迟稳定电路或每隔一段时间重新取样设定的周期锁定电路,以避免高密度暂态负载变动而造成显示变化频繁。
CNB991115058A 1999-08-18 1999-08-18 随负载电流补偿型电压取样测量电路 Expired - Fee Related CN1138150C (zh)

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Application Number Priority Date Filing Date Title
CNB991115058A CN1138150C (zh) 1999-08-18 1999-08-18 随负载电流补偿型电压取样测量电路
CN99241964U CN2394230Y (zh) 1999-08-18 1999-08-18 随负载电流补偿型电压取样测量装置
US09/379,578 US6483501B1 (en) 1999-08-18 1999-08-24 Load current compensated type voltage sampling circuit
JP28940299A JP2001116775A (ja) 1999-08-18 1999-10-12 負荷電流に伴う補償型電圧サンプリング測定装置

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Application Number Priority Date Filing Date Title
CNB991115058A CN1138150C (zh) 1999-08-18 1999-08-18 随负载电流补偿型电压取样测量电路
CN99241964U CN2394230Y (zh) 1999-08-18 1999-08-18 随负载电流补偿型电压取样测量装置
US09/379,578 US6483501B1 (en) 1999-08-18 1999-08-24 Load current compensated type voltage sampling circuit
JP28940299A JP2001116775A (ja) 1999-08-18 1999-10-12 負荷電流に伴う補償型電圧サンプリング測定装置

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CN101470155B (zh) * 2007-12-27 2011-05-04 宏达国际电子股份有限公司 电流测量装置
CN101556298B (zh) * 2008-04-10 2011-04-13 中茂电子(深圳)有限公司 整流性被动式负载仿真装置及方法
CN102680910B (zh) * 2012-05-15 2015-07-22 华为技术有限公司 电源电流检测方法及电路
US9196135B2 (en) 2013-06-28 2015-11-24 Immersion Corporation Uniform haptic actuator response with a variable supply voltage
CN103293363B (zh) * 2013-07-02 2015-10-07 东南大学 一种互感器采样值延时补偿方法
CN103809016B (zh) * 2014-02-18 2016-05-18 上海零线电气有限公司 一种用于电气火灾监控的漏电流采样电路校验方法

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US4620069A (en) * 1984-11-23 1986-10-28 Itt Corporation Method and apparatus to determine whether a subscriber line is loaded or non-loaded
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US6046594A (en) * 1997-02-11 2000-04-04 Advanced Energy Voorhees, Inc. Method and apparatus for monitoring parameters of an RF powered load in the presence of harmonics
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