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介绍了一种多用途VXI总线仪器模块──交直流信号源的设计及实现方法，其中交流稳压采用模拟来法器，精度高、稳压范围宽；低频正弦信号的产生采用了直接数字频率合成技术，具有一定的应用价值。
This paper introduces a multi-purpose VXI bus instrument module ─ ─ AC and DC signal source design and implementation methods, including AC voltage regulator using analog to the law, high precision, wide voltage range; low-frequency sinusoidal signal generated using a direct digital frequency Synthesis technology, has a certain application value.