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从理论上阐述了无时延平均功耗和有时延平均功耗之间的单调递增关系,用计算速度快的无时延理想电路功耗作为计算速度慢的有时延实际电路功耗的评估标准,并给出了它在电路平均功耗快速估计、最大功耗快速估计和电路测试功耗快速优化三个领域中的应用.提出了一种先用无时延功耗对较长的输入向量对序列进行快速压缩、再用压缩序列快速模拟出平均功耗(或最大功耗)的新方法.与直接用未压缩序列进行模拟的传统方法相比,实验结果表明:对于平均功耗快速估计,在保证估计精度(误差小于3.5％)的前提下,将模拟速度提高了6～10倍;对于最大功耗快速估计,在保证估计精度(误差小于5％)的前提下,将模拟速度提高了6-8倍.在测试功耗快速优化领域,与测试功耗直接优化法和现有的Hamming距离优化法相比,无时延功耗优化法的优化效率最高,它可以用较少的时间(缩短为16.84％),取得较好的优化效果(测试功耗降低35.11％).
The monotonically increasing relationship between the average power consumption without time delay and the average power with time delay is theoretically expounded. The power consumption of the ideal circuit without delay with fast computing speed is taken as the evaluation criterion , And gives its application in three fields: fast average power estimation, fast maximum power estimation and fast optimization of circuit test power consumption. Comparing with the traditional method of directly compressing the uncompressed sequence, the experimental results show that for the fast estimation of the average power consumption , The simulation speed is improved by 6 ~ 10 times under the premise of ensuring the accuracy of estimation (the error is less than 3.5%). For the fast estimation of maximum power consumption, the simulation speed is improved while ensuring the estimation accuracy (less than 5% error) 6-8 times faster.In the field of rapid test power optimization, compared with the direct power test method and the existing Hamming distance optimization method, the optimization method with no delay power optimization method is the most efficient, which can use less time ( Short is 16.84%), achieve better optimization results (test power consumption is reduced 35.11%).