General questions

Discussion in 'General Electronics Chat' started by justmailmahesh, Sep 30, 2009.

  1. justmailmahesh

    Thread Starter New Member

    Aug 11, 2009
    9
    0
    1. What happens with capacitor, resistance, diode, MOSFET, Thristor and IGBT when they becomes faulty and what are the possible causes of their fault.
    2. What happens physically when overvoltage, overcurrent occurs.

    Any web address or reference is also welcomed.
    Thanking you in Advance
     
  2. bountyhunter

    Well-Known Member

    Sep 7, 2009
    2,498
    507
    Let me translate your question into automotive terms:

    What happens to a car when it doesn't run right?

    What happens physically if you don't maintain it right?


    Those questions, like yours, have a plethora of possible answers.
     
  3. justmailmahesh

    Thread Starter New Member

    Aug 11, 2009
    9
    0
    My question is they become open circuited or short circuited?
    How can we avoid faults?
     
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    You can avoid faults if you design the circuit properly and do not use the components on their limits (or beyond). A safety factor of 2 is of good practise when selecting components.
     
  5. GetDeviceInfo

    Senior Member

    Jun 7, 2009
    1,571
    230
    overstressing devices that are incorrectly specified is a typical situation that will cause problems. This can be a result of incorrect engineering or part substitution.

    Acute temperature rises will injure or destroy most devices.

    This can be mitigated by understanding the ratings of the devices.
     
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