...
首页> 外文期刊>IEEE Journal of Solid-State Circuits >A Fully Isolated Delta-Sigma ADC for Shunt Based Current Sensing
【24h】

A Fully Isolated Delta-Sigma ADC for Shunt Based Current Sensing

机译:完全隔离的Δ-ΣADC,用于基于分流的电流检测

获取原文
获取原文并翻译 | 示例
           

摘要

This paper presents the world’s first reported chip-level 5 kVrms isolated delta-sigma ADC architecture which realizes isolation in both the power and signal domains. The compact IC package contains an integrated isolated power converter which includes an on-chip transformer, oscillator and rectifier, three delta–sigma analog-to-digital converters, a voltage reference, a temperature transducer, on-chip data transformers, and a controller/communication chip. Because it includes all of the isolation units within the same package, no PCB level isolation components are needed. This solution displaces the need for isolation using opto-couplers or costly, bulky and frequency dependent current transformers, and enables lower cost shunt resistor based current sensing applications such as domestic and industrial energy monitoring. It also enables new portable current sensing applications where high voltage isolation is required. The system-in-package (SIP) draws 12.5 mA from a 3.3 V supply and achieves 74.4 dBFS SNDR and 80.8 dBFS SFDR in a bandwidth of 3.3 kHz. It achieves an insulation voltage rating of 400 Vrms continuous and 5 kVrms over a 1 minute duration.
机译:本文介绍了世界上第一个报告的芯片级5 kVrms隔离式delta-sigma ADC架构,该架构可在电源和信号域中实现隔离。紧凑的IC封装包含一个集成的隔离式电源转换器,包括一个片上变压器,振荡器和整流器,三个delta-sigma模数转换器,一个参考电压,一个温度传感器,片上数据变压器和一个控制器/通讯芯片。因为它包括同一封装内的所有隔离单元,所以不需要PCB级隔离组件。该解决方案消除了使用光耦合器或昂贵,笨重且依赖频率的电流互感器进行隔离的需求,并实现了基于低成本分流电阻器的电流感测应用,例如家庭和工业能源监测。它还使需要高压隔离的新型便携式电流感测应用成为可能。系统级封装(SIP)从3.3 V电源汲取12.5 mA电流,并在3.3 kHz的带宽中实现74.4 dBFS SNDR和80.8 dBFS SFDR。它在1分钟的持续时间内达到400 Vrms的连续绝缘电压和5 kVrms的绝缘电压。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号