本文提出了一种多重抑制的线性反馈移位寄存器 (L FSR)结构来降低内建自测试 (BIST)的功耗。这种结构通过矢量间的距离而不是矢量本身来抑制对测试没有贡献的测试矢量子序列。用来估算功耗的电路内部 WSA(Weighted Switching Activity)平均降低了 80 .3%。此外 ,这种结构的另一个优点是 :随着抑制次数的增加 ,面积开销的增加量要比其他的过滤和抑制技术要小的多 This paper proposes a multiple-rejection LFSR architecture to reduce the power consumption of the built-in self-test (BIST). This structure suppresses test vector subsequences that do not contribute to the test by the distance between the vectors rather than the vector itself. The average internal Weighted Switching Activity (WSA) used to estimate power consumption decreased by 80.3% on average. In addition, another advantage of this structure is that with the increase in the number of suppression, the increase in area overhead is much smaller than other filtering and suppression techniques