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Two power sources

Discussion in 'General Electronics Discussion' started by pidja105, Apr 10, 2016.

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  1. pidja105

    pidja105

    106
    1
    Oct 16, 2015
    Hello,
    If I have one power source of 0,1V and 30Amps and other source of 12V 0,01Amps how to use that to get 12V 30Amps
     
  2. Colin Mitchell

    Colin Mitchell

    1,417
    313
    Aug 31, 2014
    I want to turn an egg into a Maserati. How do I do it ???
     
  3. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,448
    2,809
    Jan 21, 2010
    Is it a golden egg?

    Back to the original question...

    You have one power supply which can supply 3 joules of energy per second (30v @0.1A = 3W = 3 joules per second) and another capable of about 1/8 Joules per second (12V @ 0.01A = 0.12 W = 0.12 Joules per second).

    OK, that's a total of 3.12 Joules per second.

    What you want is a power supply capable of 360 Joules per second (12V @ 30 A = 360W = 360 joules per second).

    so, you have 3.12 j/s in and you want 360 j/s out.

    one option is a large capacitor which can store the incoming energy for about 2 minutes, then releases it in a second. This would work with a duty cycle of less than 1% - far less if you need to take into account the practicalities of less than 100% efficiency.

    In short, you can't do it because you have insufficient incoming energy (by more than 2 orders of magnitude) than the required output energy.
     
  4. Alec_t

    Alec_t

    2,909
    791
    Jul 7, 2015
    Just curious: what is this 0.1V 30A source?
     
  5. AnalogKid

    AnalogKid

    2,424
    690
    Jun 10, 2015
    Step 1, Leave Australia. When you are that far south of the equator, Maserati's turn to the left only.

    ak
     
  6. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,448
    2,809
    Jan 21, 2010
    It's actually not much of a problem. If you do need to turn right, you can simply call a member of any of the major political parties.
     
    AnalogKid likes this.
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