传感技术学报2024，Vol.37Issue(2)：183-188,6.DOI:10.3969/j.issn.1004-1699.2024.02.001
基于零磁通的双隔离高电压传感器设计与实现
Design and Implementation of Double Isolation High Voltage Sensor Based on Zero Flux
牟宏杰 1王阳 1许涛 1钟贻兵 1高明星1
作者信息
- 1. 山东航天电子技术研究所,山东 烟台 264003
- 折叠
摘要
Abstract
The traditional Hall voltage sensor can convert kilovolt level voltage into current by using external resistance,which has the problems of large input power and low measurement isolation.Therefore,a double isolation high voltage sensor based on zero flux is de-signed.A U/I conversion circuit with resistance array,instrument amplification and dual-follow mode operational amplifier is designed to reduce input power consumption and accurately transmit the measured voltage.The Hall module with special high voltage resistance is introduced to establish zero flux feedback for the primary and secondary magnetic fields,achieving measurement and output isolation as well as high-precision linear conversion.A wide voltage DC-DC power supply is designed to provide isolated power to internal high and low voltage module.The sensor test results show that the linearity is better than 0.1％,the accuracy is better than 0.2％,and the with-stand voltage can reach 2 000 V,which has significant engineering value.关键词
电压传感器/双隔离/零磁通/U/I转换/电阻阵列Key words
voltage sensor/double isolation/zero flux/U/I conversion/resistance array分类
信息技术与安全科学引用本文复制引用
牟宏杰,王阳,许涛,钟贻兵,高明星..基于零磁通的双隔离高电压传感器设计与实现[J].传感技术学报,2024,37(2):183-188,6.
