1/f Noise Denoting for Radiation Tatal Dose of Optocoupler
Yinghui Li, Chunxia Chen · Dianzi xuebao · 2009
Base on working principium of optocoupler,and the theory of radiation and 1/f noise,The mechanism and the charactory of radiation optocoupler are analysed,1/f noise radiation model are established,flowing tatal dose.Flowing the radiation dose increasing,traps of LED and phototransistor increasing,fluctuate of carries growing,the power spectrum of voltage noise largening,the power spectrum of voltage noise may be a new denotable parameter for optocoupler reliability.