【产品】用于精确功率测量的偏移校正夹具,自动偏移校正
功率测量是将电压/电流探头测得的电压和电流波形逐点相乘的结果,为了执行精确的功率测量和计算,必须使用称为“偏移校正”程序来均衡电压和电流探头之间的时间延迟,这个步骤非常重要,因为电压和电流轨迹的时序一旦差之毫厘,瞬时功率读数就可能谬之千里。为了校正探头,需要使用偏移校正夹具并同时采用相同的脉冲信号驱动电压/电流探头。U1880A是KEYSIGHT公司推出的一款用于电压/电流探头功率测量的偏移校正夹具,夹具会自动执行偏移校正并将偏移校正值保存在功率测量的软件中,当客户下一次启动功率测量应用软件时,便可以使用所保存的偏移校正值或再次执行偏移校正。偏移校正精度是由电压/电流探头的电学特征以及被测信号的上升时间决定,较高带宽的探头可支持更好的上升时间保真度和更出色的偏移校正分辨率。
U1880A偏移校正夹具非常适合用于功率器件的分析。偏移校正夹具可使客户在一个指定的开关周期内轻松表征开关设备的瞬时功率损耗和传导功率损耗。动态ON电阻测量能表示功率晶体管在传导电流时的功率损耗。为了确定电源的可靠性,在测量动态负载的变化过程中必须考虑功率损耗并观察SOA(安全工作区)的图表,客户可以方便地使用示波器的深度采集存储器和SOA图表,以轻松识别功率晶体管的失效行为。
图1 U1880A偏移校正夹具的电路测量校正的示意图
U1880A偏移校正夹具同时十分适用于输入线路分析和调制分析。电源设计人员需要对线路功率进行表征,确定在不同电源工作条件下的电力质量、谐波和传导发射。一些隐含的测量包括实际功率、视在功率、无功功率和波峰因数,以及与IEC 61000-3-2(A、B、C、D 类)和RTCA DO 160E等标准相关的谐波的图形显示。通过使用电流探头和功率测量软件(具有FFT数学函数),客户可以测量导电线路的谐波分量。该款偏移校准夹具的调制分析使客户可以对 PWM信号打开时和关闭时的信息进行快速查看,信息带宽比脉冲开关频率小得多,所以以前很难观测这些信息,绘制PWM信号在一段较长时间内打开或关闭时的内嵌变量图形,显示反馈环路系统的控制环路响应。此测量通过频率/时间、周期/时间、占空比/时间和正脉冲宽度/时间等方式表现采集波形开关变化的数据趋向。
图2 U1880A偏置校准夹具的打开/关闭分析(左)和瞬态响应分析(右)
U1880A偏移校准夹具用于打开时间/关闭时间分析时,测量施加输入电压后电源输出电压变成稳定状态所用的时间,以及移除输入电压之后电源输出电压关闭所用的时间。电源很可能遇到瞬时情况(例如打开和关闭瞬时)以及输出负载和线路输入电压的突然变化,其关键的电源技术指标为负载瞬时响应。测量直流输出的负载瞬时响应是负载变化时直流输出变成稳定状态所用的时间。校准夹具表征输出直流电压中的纹波,纹波是叠加在电源直流输出的交流分量,显示纹波峰峰值和捕获信号的频率响应以表现出优异的输出分析特性。
U1880A偏移校准夹具的特点及优势:
· 偏移校准夹具执行精确的功率测量和计算;
· 均衡电压和电流探头之间的时间延迟;
· 进行电压/电流探头的功率测量,夹具会自动执行偏移校正并将偏移校正值保存在功率测量的软件中;
· 较高带宽的探头支持更好的上升时间保真度和更出色的偏移校正分辨率;
· 适合用于功率器件的分析,测量动态负载的变化过程中的功率损耗;
· 适用于输入线路分析和调制分析;
· 适用于浪涌电流分析和输出特性分析;
· 非常适用于关闭时间、打开时间分析。
U1880A偏移校准夹具的典型应用:
· 偏移校正:电压/电流探头的自动偏移校正
· 功率设备分析、输入线路分析、浪涌电流分析、输出分析
· 打开时间/关闭时间分析、瞬时分析、调制分析
U1880A偏移校准夹具的典型应用示例图片:
技术顾问:史辰雷
世强元件电商版权所有,转载请注明来源和链接。
- |
- +1 赞 0
- 收藏
- 评论 6
本网站所有内容禁止转载,否则追究法律责任!
相关研发服务和供应服务
评论
全部评论(6)
-
terrydl Lv9. 科学家 2018-06-13看看
-
加油小陈 Lv8. 研究员 2018-05-26学习
-
用户18396822 Lv8 2018-04-12很好
-
ggss Lv8. 研究员 2017-12-18感谢分享,资料不错
-
不忘初心 Lv4. 资深工程师 2017-12-18学习下
-
海绵宝宝 Lv7. 资深专家 2017-12-18keysight的测试工具越来越丰富了
相关推荐
【产品】用于 InfiniiVision 3000 X 系列示波器的功率测量选件DSOX3PWR
DSO3XPWR 选件是集成于 InfiniiVision 3000 X 系列示波器的功率测量和分析选件。这个嵌入式软件能够快速、轻松地分析开关电源的可靠性和效率,并且可以借助 U1880A 偏移校正夹具实现自动探头偏移校正。DSOX3PWR 选件还包含基于 PC 的 U1881A-003 功率测量和分析软件的用户许可证,能够更深入地分析您的电源测量。
新产品 发布时间 : 2019-08-30
【产品】用于 InfiniiVision 4000 X 系列示波器的功率测量选件 DSOX4PWR
Keysight 推出的DSO4XPWR 选件是集成于 InfiniiVision 4000 X 系列示波器中的功率测量和分析选件。这个嵌入式应用软件能够轻松、快速地分析开关电源的可靠性和效率,并且能够借助 U1880A 偏移校正夹具实现自动探头偏移校正。DSOX3PWR 选件还包括在 PC 上运行的 U1881A-003 功率测量和分析软件的用户许可证,能够更深入地分析您的电源测量。
新产品 发布时间 : 2019-08-27
【产品】Keysight的功率计和功率传感器附件,支持各种Keysight功率计和传感器
Keysight 这些附件支持各种Keysight功率计和传感器。量程校准器是校准432A、E1416A、70100A、EPM和EPM-P功率计的必备仪器,传感器电缆与特定传感器有关,可按不同应用情况选择适宜的电缆长度。
新产品 发布时间 : 2018-11-26
【选型】Keysight(是德科技)通用及基础测量仪器样本
目录- 示波器和探头 数字万用表 数字采集和开关 频率计数器、函数和任意波形发生器 电源 射频仪表
型号- U1272A,34460A,34133A,53140,N5742A,N5766A,E4980ALU-050,N2919A,N576XA,N5439A,6644A,661XC-220,54600S,34905A,3446MEMU,3000X,U2700,N674XB,34132A,34132B,53150,N5743A,53151,N5767A,661XC-OL2,664XA,3024T,N2918A,6621A,3000T,53152,6645A,N2918B,N9310A-1CM,661XC-230,U1273A,34904A,U1620,E364XA-1CM,N6746B,3000X,DSOXGPIB,N8948A,1000,34131A,DSOX4AUTO,N5744A,N5768A,N2917B,6622A,N3300A,8120-4383,TPS://WWW.SEKORM.COM/WEB/SEARCH/KEYWORDN2801A,34903A,663XB-0B3,DSOX4SENSOR,N8900A,66102A,N6701A,E5387A,66000,U1271A,N8949A,66002A 66001A,11059A,6624A,N5745A,668XA-0B3,8120-5488,N5769A,3022T,6623A,N3301A,33500,8120-5489,34902A,66101A,N9340B-AMA,N2916B,U1600,N6700B,33509B,N7020A,6625A,DSOXLAN,4000X,N3302A,N5746A,8120-5413,8120-6502,N2874,8120-5412,N574XA,U1604A,8120-6980,34901A,34925A,66104A,8120-6507,N2915A,8120-5414,U2802A,66321D,N9310A-1HB,DSO1072B,66321B,663XB-760,B2902A,4000X,6626A,N3303A,N5747A,8120-5421,N2829A,N2862,600,66103A,34924A,N2805A,N6702A,N6705B,N9330B,668XA-909,B2901A,6627A,668XA-908,N3304A,U1602A,N2828A,N5748A,34923A,34947A,8120-8705,N2804A,66106A,6628A,891A,669XA-0L2,N3305A,N5749A,34922A,E5805A,34946A,N2827A,60XX-220,N2803A,66105A,U8001A,DSOX4EMBD,N2849A-68701,1000B,3000,1000A,TPS://WWW.SEKORM.COM/WEB/SEARCH/KEYWORD54600S,N3306A,DSOX4MASK,U1600A,U1210,N2791A/N2891A,34921A,6575A,34945A,1158A,6551A,6684A,3446SECU,N2826A,5485X,N2802A,E363XA-0L2,1134A,DSO1052B,34172B,N3307A,657XA,U3400,6552A,N2801A,60XX-240,5462X,N2825A,34171B,N9340B-ADP,DSOX2000,33612A,33503A,1131A,N9310A,663XB-8ZJ,U1731B,6553A,N2800A,N3300A-UJ1,N2739A,N2848A,N2824A,8121-0695,8121-0694,DSOX2APPBNDL,33611A,B2960A,U8002A,E4980ALU-201,N33313A,1132A,DSOX2AUTO,8120-43831,U3606A,U1732B,6554A,34942A,681XB-1CP,BNC,1157A,U3606B,5464X,681XB-1CM,2000 X,N2738A,DSOX3ADVMATH,6551,N9340B-ABJ,8120-5490,8121-1330,N9340B-ABA,2000X,8121-1331,655XA,8120-8767,53100,8120-8768,34941A,6555A,34832A,663XB-120,N2822A,N9340B-AB2,3000TX,33500B,N5,N9330B-ADP,1130A,U2600A,N9340B-PA3,DSOX3EMBD,200,6641A,669XA-0B3,1131.,N2821A,DSOX3MASK,4000 X,5000,N3300,AC6800,6642A,34830A,N7900,N2820A,N2759A,33522A,33522B,1180CZ,663XB-100,DSOX4COMP,N9310A-1T,N9340B-TG3,6643A,N2867A,N2843A,U1401B,N9340B-INM,AC6804A,DSOX3AUDIO,34840B,DSOX4FLEX,669XA-908,669XA-909,N2733A,N2866B,N2733B,3458A-002,DSOX2EMBD,3458A-001,E2695A,DSO1012A,34972A,N9310A-1TC,60001,N2889A,N2756A,6063B-020,N2732A,AC6802A,6000A,U1270,6000X,DSO1014A,U1880A,N9340B-TAD,90000 X,663XB-020,N2779A,N2888A,6000L,DSOX3COMP,E2697A,N2863B,AC6803A,U2751A,34970A,L4411A,6000X,34401A,N9330B-202,N9330B-203,U1881A,N9330B-201,N2778A,N2887A,54826,8120-1689,7000,N2862B,E4980A-710,668XA-208,54830,U1250,DSOXEDK,6571A,681XB-208,N875XA,N2777A,6680A,N8756A,N8732A,N8950A,TPS://WWW.SEKORM.COM/WEB/SEARCH/KEYWORD1163A,E3610-17A,AC6801A,DSOX3FLEX,681XB-200,10070D,N2885A,N2752A,N5440A,E3451B,81180A,U2531A,54600,6572A,E4980AL-100,6681A,N8757A,N2776A,U3402A,N8733A,53147A,8120-2956,N8951A,681XB-230,N2884A,N2751A,N7971A,DSO1102B,6641A-45A,DSOX2COMP,64997A,6682A,U1230,6573A,U3401A,N6773A,B2980A,N8754A,N7970A,N2750A,DCA-J 86100D,53230A,6813B-019,N5442A,6631BA,8120,6574A,6683A,54620,U1240,N8755A,5484X,N8731A,N2797A,N5770A,N2882A,N873XA,N5443A,34420A,N7973A,10073D,DSOXDVM,E2678A,80000,N28,N6775A,N8736A,8120-2104,N6751A,N8954A,DSOX4PWR,N2881A,E2655C,6063B,N2796A,N5444A,P66321B,N5771A,6812B,N7972A,10074D,E2679A,N5468A,N9340B-XDM,6811B,11053A,9000X,N8737A,N6774A,DSOX3MSO,N8955A,E3634A,N2771B,N2880A,DSOXPERFMSO,N6450,N2795A,N5772A,N5469A,9000,6813B,N5445A,U2356A,8121-6203,N7951A,N6459,N6753A,N8758A,U1242B,N6971A,N8734A,33220A,N8952A,N6777A,681XB-026,53181A,681XB-020,U2331A,661XC-760,10072A,N7950A,60XX-0B3,U2355A,N7974A,DSOX4AUDIO,34465A,E5813A,34138A,E4356A-909,E4356A-908,U1461A,N8759A,N6752A,N6970A,N8735A,N677XB,N6776A,N2793A,N9340B-IBC,U1591A,11058A,U2354A,N5750A,N7953A,N7977A,N5447A,N5423A,E5810B,E5810A,N6731B,N6973A,N2914,DSOX4APPBNDL,661XC-0B3,E3631A,N6755A,N2792A,DSOX3VID,E2675A,DSOX2MASKM,34330A,U2353A,N7976A,E4980AL,N5751A,N9340B-1TC,N5448A,N5424A,N7952A,34136A,DSOX2SEM,N3331A,N6972A,U1241B,E3630A,DSOX4AERO,34908A,N6754A,E2676A,N2791A,N9330B-1TC,N8738A,10075A,U2352A,N5752A,N5425A,U1452AT,3000T X,N577XA,N5449A,DSOXT3DVMCTR,7000B,TPS://WWW.SEKORM.COM/WEB/SEARCH/KEYWORD10076C\,3000 X,U2700 USB,U1177A,N6951A,E363XA-1CM,N2836A-68701,34907A,E3633A,N6733B,E2677A,N9310A-001,N2790A,N675XA,66000A-909,E4980A-301,N8739A,66000A-908,N7954A,10076B,34134A,10076C,U2351A,N5426A,34461A,66319B,8120-4753,N6732B,N6950A,N8957A,E3632A,34906A,N6756A,N6974A,66319D,N9330B-BCG,B2911A,N2111A,8120-5570,N9340B,E2614A,1161A,DSOX3AERO,6632B,8120-5572,N1022B,8120-5573,33250A,54830S,8120-5337,N6735B,N6977A,N6711A,N6953A,661XC-100,1162A,E2615A,6633B,34945EXT,N9330B-BAT,3012T,8120-5342,N6710B,66002A,N6976A,90000Z,N6734B,N6952A,DSOX4WAVEGEN2,90000X,U8031A,663XB-1CM,90000Q,663XB-1CP,34470A,E2616A,N575XA,6634B,8120-6204,661XC-120,90000A,66332A,6651A-55,DSOX2WAVEGEN,34939A,N673XB,1132,1131,82351A,1160A,N2819A,6611C,3034T,N5406A,8120-8871,66000A-0L2,34938A,N6736B,N6954A,N6712A,90000,E5396A,N9320B,6612C,N2818A,E
Keysight(是德科技)示波器探头和附件选型指南
目录- Oscilloscope Probes Accessories Passive probes Single-ended active probes Differential active probes current probes Optical-to-electrical converter Oscilloscope Accessories
型号- N2870A,E2678B,N2797A,N2830A,N2785A,N2894A,N2882A,N7040A,N7000A,E2614A,10073D,N7024A,N5439A,N1022B,N2878A,N4827A,N2842A,N2826A,N2802A,N2881A,E2643A,E2655C,N2841A,N7007A,N2796A,N2784A,N2893A,1134B,54620-68701,N5444A,1146B,E2615A,N7023A,E2679B,DP0001A,1147B,N2889A,N2801A,N2768A,N2756A,N2877A,N2744A,N2825A,N2783B,E2644A,N7026A,N2880A,N5380B,N2795A,N2783L,N7042A,E2616A,1131B,N5445A,N7002A,E2668B,MX0105A,U1880A,N2888A,N2876A,N2848A,N2824A,N2891A,N2782B,N5381B,E2697A,N2863B,N5450B,1168B,1132B,N7041A,10072A,N7001A,E2669B,MX0023A,N2819A,MX0104A,1169B,N2778A,N2887A,N2766A,N2875A,N2835A,N4822A,N2793A,E5396A,N7004A,N2890A,N2781B,54826-68701,N4863A,N2874A,N5451A,N2862B,10077A,1165A,N7020A,N7032A,54006A,N2818A,N6459-60001,N2822A,N2777A,N7003A,N4864A,N2792A,10070D,N2780B,E2675B,N6450-60001,N2885A,N2873A,N2752A,N2142A,MX0106A,1130B,N2829A,N2833A,N2821A,N2776A,N2805A,10085-68701,N2791A,E2676B,N2884A,N2872A,N2751A,MX0109A,N5477A,10075A,N7022A,N5425B,N5449A,N2828A,N2832A,N2820A,N2787A,N2804A,E2677B,N7005A,N2790A,N2786A,N2871A,N2750A,54904-61615,N2140A,10076C,N5442A,N7021A,N5426A,N7033A,E2613A,MX0100A,N2839A,N2843A,N2831A,N2827A,N2803A,N2879A
InfiniiVision 示波器应用软件套件技术资料
型号- N7026A,4000 X,4000 X 系列,N2751A,MSOX6004A,DSOXLAN,MSOX4154AUT,N2818A,6000 X,MSO6004JIT,U1880A,DSOX3154AUT,DSOX3WAVEGEN,6000 X 系列,MSOX6004JIT,D3000AUTB,N2790A,MSOX4154PWR,N2750A,DSOX6WAVEGEN2,DSOX3054PWR,DSOX3054T,DSOX3054AUT,D6000BDLB,X 系列,DSOX6004A-02G,DSOX6004JIT,1147B,MSOX4154A,D4000BDLB,DSOX6004A,DSOX4WAVEGEN2,D3000PWRB
Keysight(是德科技) 开关电源测量应用指南
型号- N2870A,MSOX3034T/DST,N2874A,MSOX6002A,4000X,MSOX3024T,DSOX3022T,DSOX4022A,MSOX4034A,DSOX3034T,MSOX3012T,DSOX4034A,MSOX4054A,DSOX3014T,MSOX4022A,DSOX4054A,N2878A,MSOX3052T,MSOX3032T,1147B/001/DST,N2873A,1147B/001,DSOX3054T,MSOX3104T,MSOX4104A,DSOX3104T,DSOX4104A,MSOX4104A/DSOX4APPBNDL,MSOX3054T/DST,1147B,DSOX6002A,N2877A,N2791A,N2872A,DSOX4052A,MSOX6004A,3000T X,6000X,DSOX4024A,U1880A,DSOX3012T,MSOX3034T,MSOX4024A,DSOX3024T,MSOX4032A,MSOX3014T,DSOX4032A,MSOX4052A,N2790A/DST,MSOX3022T,N2876A,DSOX3054T/DSOXT3APPBNDL,MSOX3054T,MSOX4034A/DST,N2790A,N2871A,DSOX3052T,DSOX3032T,MSOX4054A/DST,DSOX4154A,DSOX6004A/DSOX6B10T254BW/922/AB2,DSOX3102T,MSOX4154A,MSOX4024A/DST,N2875A,DSOX6004A,MSOX3014T/DSOXT3APPBNDL,N2879A
【经验】如何对示波器电压探头和电流探头进行偏移校正?
如何对示波器电压探头和电流探头进行偏移校正?本文给出了详细解答,并推介了是德的功率测量偏移校正夹具 U1880A以及极限温度探测套件N7013A。
设计经验 发布时间 : 2023-06-16
InfiniiVision Oscilloscope Application Bundles
型号- N7026A,4000 X,N2751A,MSOX6004A,3000T X-SERIES,DSOXLAN,3000T X,MSOX4154AUT,N2818A,6000 X,U1880A,DSOX3154AUT,DSOX3WAVEGEN,MSOX6004JIT,D3000AUTB,N2790A,MSOX4154PWR,N2750A,DSOX6WAVEGEN2,DSOX3054PWR,X-SERIES,DSOX3054T,DSOX3054AUT,D6000BDLB,DSOX6004A-02G,DSOX6004JIT,1147B,4000 X-SERIES,MSOX4154A,D4000BDLB,DSOX6004A,DSOX4WAVEGEN2,6000 X-SERIES
Keysight(是德科技) U1882B Measurement Application for Infiniium Oscilloscopes
型号- N2782A,N2793A,N2870A,N2781A,N2792A,N2891A,N2780A,N2791A,N2790A,N2893A,N2783A,1162A,U1882B,U1880A,1147B,5989-7835EN,N2805A,N2804A
How to Make the Best Switch Mode Power Supply Measurements
型号- N2870A,N2790A,DSOX3PWR,U1880A,1147B,N2893A,4000 X-SERIES,DSOX6PWR,3000T X-SERIES,DSOX4PWR,6000 X-SERIES
Quickly Characterize Switch-Mode Power Supply Designs SOLUTION BRIEF
型号- N7026A,N2790A,4000,U1880A,MSOX4154A,4000 X-SERIES,D4000PWRB
Power Measurement Application
型号- 7000,N2781A,N2862A,N2783A,1153A,1165A,10073A,1141A,10073B,10073C,1161A,U1882A,U1880A,10070B,N2782A,10070C,8000,N2780A,6000,N2863A,N2774A,N2772A,10074A,10074B,1162A,10074C,1160A,10070A,SI- 9110,P5205,U1881A,1147A
Keysight(是德科技) 开关电源测量
型号- N2870A,3000T,N2791A,6000,N2790A,4000,DSOX3PWR,U1880A,1147B,DSOX6PWR,100070D,DSOX4PWR
现货市场
服务
提供是德(Keysight),罗德(R&S)测试测量仪器租赁服务,包括网络分析仪、无线通讯综测仪、信号发生器、频谱分析仪、信号分析仪、电源等仪器租赁服务;租赁费用按月计算,租赁价格按仪器配置而定。
提交需求>
配备KEYSIGHT网络分析仪,可测量无线充电系统发射机/接收机线圈的阻抗,电感L、电阻R、电感C以及品质因数Q,仿真不同充电负载阻抗下的无线充电传输效率。支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳 提交需求>
登录 | 立即注册
提交评论