Input / Output Protection

Discussion in 'The Projects Forum' started by malkc, Feb 8, 2010.

  1. malkc

    Thread Starter New Member

    Feb 7, 2010
    1
    0
    Here is what I have specified (so far):

    DC output Power:
    300mA output minimum
    Overcurrent Protected (fuse blows?)
    Miswire: up to 265VAC, still operates, but miswire is indicated
    Transient/Surge source: Lightning

    DC Inputs 1-5:
    Off Voltage: 0V
    On Voltage: 12V
    Miswire: up to 265VAC
    Transient/Surge source: Lightning
    Reverse Voltage: 12VDC

    DC Outputs 1:
    Off Voltage: 0V
    On Voltage: 12 V
    Output Max Current 1A.
    Overcurrent Protected
    Miswire: up to 265VAC, still operates, but miswire is indicated
    Transient/Surge source: Lightning

    DC Outputs 2-3:
    Off Voltage: 0V
    On Voltage: 12 V
    Output Max Load: 1kohm resistive
    Overcurrent Protected
    Miswire: output protected up to 265VAC, still operates, but miswire is indicated

    attached is my input circuit utilizing a rectifier / dep mode fet / opto, but it doesn't indicate a miswire.

    also, i really like using a comparator input so i can set the threshold voltage. maybe i can't have it all?


    Please advise if you have a good suggestion.
     
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