EPS电感式转矩传感器正弦波振荡器的研究  

Study on sine wave oscillator for EPS inductive torque sensor

作　　者：刘学[1] 孙凌玉[1] 季学武[2] 

机构地区：[1]北京航空航天大学汽车工程系,北京100083 [2]清华大学汽车工程系,北京100084

出　　处：《信息技术》2007年第6期83-85,89,共4页Information Technology

摘　　要：为了满足电动助力转向电感式转矩传感器的需要,设计了一种简单、实用的正弦振荡器。该振荡器采用结型场效应管的压控电阻特性设计自动增益控制电路,通过合理选择元器件的参数抑制了信号幅度的温漂。实验表明,振荡器的输出信号幅度稳定、失真小,满足传感器振荡器的性能要求。To meet the demand of EPS inductive torque sensor, the simple and applied sine wave oscillator is presented. This paper developes the automatic gain control circuit using the voltage control resistance character of junction type field transistor the parameters of the components are selected reasonably to suppress the tem- perature drift of signal amplitude. Some tests are carried out. It is found that the signal has the characters of amplitude stabilization and low distortion and could satisfy the requirements of performance for the sensor oscillator.

关 键 词：正弦波振荡器 压控电阻 自动增益控制 

分 类 号：TN710[电子电信—电路与系统]