基于UAF42的激磁信号源设计

The Design of Magnetizing Signal Source Based on UAF42

为满足旋转变压器角度测量的需求,设计了一个基于UAF42的高精密400Hz激磁电源正弦信号源。采用温补晶振作为频率源,通过分频电路以及由UAF42构成的带通滤波器,得到高精密400Hz正弦信号。实验证明,该设计结构简单,频率稳定度高,谐波分量少,可靠性好,满足测试要求。

In order to measure the mechanical angle of resolver,a new design of highly accurate 400 Hz sinusoidal signal source of magnetizing power supply based on UAF42 device was proposed.The signal was produced through frequency division circuit and band-pass filter comprised by UAF42,while temperature compensated crystal oscillator was used as a frequency signal source.Experiments prove that the design has the advantage of simple structure,highly stable frequency,less harmonic component,better stability,which can fulfill the test requirement.