信息与电子工程2012，Vol.10Issue(4)：490-494,5.
一种磁通门传感器的相敏整流电路设计
Design of a phase-sensitive detect circuit used in fluxgate
摘要
Abstract
With the miniaturization and intelligentization development of the sensors, the computing circuit of fluxgate signal has transformed to microchip from traditional separated components and PCBs. For the purpose of miniaturization, this paper presents an analog multiplying unit employing a Gilbert cell and.its bias circuit to realize the function of phase-sensitive detect. The circuit is implemented in 0.6 μm BiCMOS process. The simulation and verification results based on the Hspice show that the zero position keeps stable when the temperature changes from -10 ℃~+50 ℃; the output DC component keeps below 3 mV when DC, fundamental harmonic(l kHz) and the third harmonic pass the circuit, indicating significant inhibition effect of the circuit on odd harmonics.关键词
磁通门信号/相敏整流/Gilbert乘法器/零位Key words
fluxgate signal/ phase-sensitive detect/ Gilbert cell/ zero position分类
信息技术与安全科学引用本文复制引用
崔智军..一种磁通门传感器的相敏整流电路设计[J].信息与电子工程,2012,10(4):490-494,5.基金项目
安康学院重点学科支持资助项目(AYZD201001) （AYZD201001）
安康学院高层次人才科研专项资助项目(AYQDZR201114) （AYQDZR201114）
安康学院大学生科技创新资助项目(2011AKXYDXS01) （2011AKXYDXS01）
