failure analysis

  1. johnnybaloney

    Fried Sony BCG-34HRE NiMH battery charger teardown

    Hi, My Sony BCG-34HRE battery charger has just died with a loud buzz and then a pop, so I decided to take it apart and see what exploded inside. Getting inside required a bit of wrestling (damn you hidden screw!) and I took a few pics which I'm sharing here for posterity. There...
  2. B

    Solar emergency light/fan circuit help needed

    Hello great team! I'd immensely appreciate the help of brilliant minds out here. I've Solar rechargeable emergency unit that can power 2 lights and a small table fan. The unit stopped working with a blown resistor on the circuit. I did try replacing the resistor with an identical color coded...
  3. Lambo Av

    Generator at Slack Bus Reliability and Mean Time Before Failure

    Say, a generator at a slack bus with a voltage source of 1 V with phase of 0° with a hazard rate of 0.083. What's the reliability of the generator in 1 year and the Mean Time Before Failure? I have worked it out and got an illogical answer. Here are my workings, can anyone be kind enough to...
  4. Ganesan Magizh

    Electrical Over Stress - Looking your assistance to resolve the EOS issue in Automotive ECU.

    Dear Friends, I am working in an Electronics Manufacturer service (EMS) and we do PCB assemblies for Automotive products (ABS). We are getting many field failures due to components burnt issue. Mostly like diodes, ASIC, MCU and FET components are getting damaged/burning in the field. Whenever...