Kevin Weddle Posted August 12, 2009 Report Share Posted August 12, 2009 When building a circuit from initial design, a lot of components fail prematurely. Is it due to electrically stressing the components temporarily, or powering the circuit on and off? Most commercially bought products are rigorously tested, but I have some simply designed circuits that would probably fail rigorous testing. Are circuits designed around reliability problems like these? Quote Link to comment Share on other sites More sharing options...
audioguru Posted August 13, 2009 Report Share Posted August 13, 2009 I have always used name-brand parts. They have max spec's. I design circuits well within the spec's of the parts.I have designed and assembled hundreds or thousands of circuits and none failed.I designed some products where tens of thousands were made and sold. Two failed in quality control tests: one with an IC installed backwards and another with a shorted electrolytic capacitor. Quote Link to comment Share on other sites More sharing options...
Kevin Weddle Posted August 18, 2009 Author Report Share Posted August 18, 2009 Designing circuits for reliability is different than designing circuits for performance. But your saying that all it takes is staying within component specification. If I need to power a 100W load, then it's fine to use a device that's rated to deliver 105W? Quote Link to comment Share on other sites More sharing options...
audioguru Posted August 18, 2009 Report Share Posted August 18, 2009 But you're saying that all it takes is staying within component specification. If I need to power a 100W load, then it's fine to use a device that's rated to deliver 105W?No.Use Name Brand parts and stay Well Within the spec's. To power a 100W load then use a part that is rated to power a 150W load. Then it will probably last forever (but it might cost a little more). Quote Link to comment Share on other sites More sharing options...
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