In order to predict the lifetime of a product, manufacturers usually conduct accelerated temperature & Humidity test. We usually conduct the accelerated test under the conditions that are much more severe than the actual operating conditions and record test hours, time-to-failure. Then we estimate/ calculate the product life-span using Peck's Power Law.
In the below example, the estimated lifetime of the product under test is 12 months if it survives for 96 hours at 80 °C with 90% RH. Assuming the product normal upper operating limit of 40 °C and 50% RH, we have got acceleration factor 92.48.
Subscribe to:
Post Comments (Atom)
Ultra-Precise, Current-Sense Amplifier
This ultra-precise current sense amplifier that can measure voltage drops across shunt resistor, R1 over a wide common mode range from 2....
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXD7hy58BQ3kexcGjf3Q1nyxZDLL6NT5Z-ahsUw68QFliy_mOuyfMSlg2SSk8NhAH2z3prNS9I3NnMVwmGkLgPNX6B2npIpzNW7bsKXGesne83dXMlbOl_veEWOx8pFYA4lpVJX5iHzfS2qlvXysZRS3LwaAaqTZE-LCTi1Q8OG7l4G_lbPqdNjQv6sMU/w400-h314/1.png)
-
Voltage divider resistor network is used to step monitored voltage down to the range as necessary for A/D conversion. Passive low-pass f...
-
Import Changes from Schematics to PCB in Alitum as below. 1) Compile the Project 2) Design >> Import Changes From XXX.PrjPCB 3)Execut...
No comments:
Post a Comment