Oscillation Test Strategy for Analog Filters by Monitoring Output Voltage and Supply Current
A test strategy for analog filters was proposed. The output voltage and supply current of the circuit were monitored when using the oscillation test technique. The frequency, average value, maximum value and amplitude of both output voltage and supply current were taken as test parameters. Tolerance bands of test parameters were analyzed. Fault detectabilities of test parameters were compared and combined, and optimal parameter sets were derived. Experimental results show that both the output voltage and supply current give significant contribution to fault detection. Considering catastrophic, single and double parametric faults, the fault coverage in testing the benchmark circuit can be raised from 90.6％ for traditional voltage-only oscillation test strategy to 97.2％ by monitoring both output voltage and current parameters.
oscillation test analog filters voltage supply current
HU Geng WANG Hong HU Mei YANG Shiyuan
Department of Automation,Tsinghua University,Beijing 100084,China
国内会议
北京
英文
78-82
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）