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问一下发射电流我发现个规律从小到大完了以后再从大到小的这样重复变化（如：4mA-15mA-25mA-31mA-20mA-14mA-5mA......）这个是怎么回事啊？？？
发射电流不稳定是什么造成的？？？？？？供电部分正常
hnzang，
你的具体的测试环境和方法是什么？
BR. AZ
