Getting Signal Voltage From Source Power

Discussion in 'General Electronics Chat' started by tedstruk, Aug 22, 2017.

  1. tedstruk

    tedstruk

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    I used to know how to make this conversion from source power ie. 12v to signal voltage, but I have forgotten what signal is. its like 1 ohm at 1v or something like that...
    can anyone help me?(ha ha ha)
     
    tedstruk, Aug 22, 2017
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  2. tedstruk

    Arouse1973 Adam

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    Do you mean the power equation P = I*V ?
     
    Arouse1973, Aug 22, 2017
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  3. tedstruk

    tedstruk

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    that might be it.... but thats watts. and I think signal is like 1millivolts@1 watt?
    or 1 millivolt @ 1kohms? anyway I remember it was millivolts, but I can't remember the other part.
    signal is generally used as power for circuits like radio sets, comparators and is used as a base for all other math in the circuit...

    blank slates are the cause of every great problem....
    Just look at Einstien.
     
    tedstruk, Aug 23, 2017
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  4. tedstruk

    kellys_eye

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    0dBm - 1 milliwatt
     
    kellys_eye, Aug 23, 2017
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  5. tedstruk

    davenn Moderator

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    have absolutely no idea what you mean ????
     
    davenn, Aug 24, 2017
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  6. tedstruk

    kellys_eye

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    1A = 1V dropped across 1Ω ???
     
    kellys_eye, Aug 24, 2017
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  7. tedstruk

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Not until you ask a question we can understand.
     
    (*steve*), Aug 24, 2017
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  8. tedstruk

    tedstruk

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    0 dBm I think thats it.
    1 milliwatt..
    that is the point at which wattage is not capable of creating exponential heat....
    I think... Its been along long time since I did any electronics!
     
    Last edited by a moderator: Aug 25, 2017
    tedstruk, Aug 25, 2017
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  9. tedstruk

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    No it's just a reference point.

    The expenditure of power, no matter how small, can cause heating.
     
    (*steve*), Aug 25, 2017
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  10. tedstruk

    kellys_eye

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    ... don't you mean 'ever'??
     
    kellys_eye, Aug 25, 2017
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  11. tedstruk

    BobK

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    What do you mean? He did electronics and he has the smoke to prove it!

    Bob
     
    BobK, Aug 26, 2017
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