摘要
CPU、DSP等大功率集成电路在动态老炼试验时,其壳温迅速升高,无法保持在老炼所需规定的温度范围内,致老炼试验不能严格按要求进行.针对此问题研制了大功率集成电路动态老炼自动温度控制器：包括温度采集、风扇自动控制、主控和显示电路等模块,受试器件的壳温能通过风扇自动控制在一定温度范围之内.并按GJB 548B标准中的动态老炼要求进行了试验验证.试验结果表明,壳温控制准确有效（如85～90℃,温度区间可自由设置,显示精度：0.1℃）,温度显示实时直观.
This paper presents a method of license plate character recognition based on the combination of Zernike moment and wavelet transformation features. CPU, DSP and other large power integrated circuits in the dynamic burnin test, its shell temperature rapidly increased, unable to remain the temperature for required, lead to burn-in test can not be in strict accordance with the requirements. For this reason, this paper designs the automatic temperature controller of high power IC dynamic, Including temperature acquisition, fan automatic control, and display circuit, so the device shell temperature can automatically control within a certain temperature range through the fan. And trying to validation the test method according to GJB 548B. The test results show that, the shell temperature control is accurate and effective（such as 85- 90℃, the temperature interval can be set free, the display precision： 0.1℃）, and the temperature display real-timely.
出处
《电子测量技术》
2015年第5期127-130,共4页
Electronic Measurement Technology
关键词
集成电路
动态老炼
温度控制
integrated circuit
dynamic burn-in
temperature control
