东风5型内燃机车主发电压及电流采样模拟电路的设计

Design of the Sampling Voltage and Electric Current Analogous Circuit for the Main Generator of the Dongfen-5 Diesel Locomotive

给出了东风５型内燃机车主发电压电流的一种采样模拟电路，叙述了其工作原理、试验数据及应用结果，采用该模似电路的样机已成功地应用在微机恒功励磁综合试验台上，较好地改善了其测试性能，此电路可以广泛地应用于其它需要模拟发电机电压电流及频率的场合。

Introduces a new sampling analogous circuit of the voltage and electric current of themain generator in the Dongfen-5 diesel locomotive,and explaines its principles,test datas andapplication results.Now the model machine which adopts this analogous circuit is used successfullyin the test rig for testing the constand power excitation magnet unit,and this circuit can be alsoused in the other occasions where the sampling voltage or electric current of generator needs to besimulated.