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  • crazy john
    crazy john

    Member • Dec 25, 2011

    Increase current

    I want to increase the amount of current from 5amps to 18amps.....am using 24V battery as a source . Please help me to deal with this problem .
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Replies

  • Harshad Italiya

    Member • Dec 25, 2011

    You want to increase current without changing battery? And right now battery current capacity is 5 amp?
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  • crazy john

    Member • Dec 25, 2011

    yes....is it possible to do so ??
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  • Harshad Italiya

    Member • Dec 25, 2011

    Battery is constant current source. 😔 seems difficult.
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  • crazy john

    Member • Dec 25, 2011

    Is there any other alternative to achieve this amount ??
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  • Harshad Italiya

    Member • Dec 25, 2011

    Once i heard about some chip which used to amplify current have to check all spec of that. I'll try to get exact part number of that chip.
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  • crazy john

    Member • Dec 25, 2011

    thank you godfather .
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  • lal

    Member • Dec 26, 2011

    But if we try to harness more current than the rated from a battery, it would collapse, right? Its designed to reach only that maximum value.
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  • Harshad Italiya

    Member • Dec 26, 2011

    lal
    But if we try to harness more current than the rated from a battery, it would collapse, right? Its designed to reach only that maximum value.
    Yes we can't draw more than its rated current but we can use some chip if available which convert voltage into current.
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  • lal

    Member • Dec 26, 2011

    Like a step down transformer decreasing the voltage but stepping up the current.
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  • Harshad Italiya

    Member • Dec 26, 2011

    lal
    Like a step down transformer decreasing the voltage but stepping up the current.
    Yes exactly like that. 👍
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  • neo23

    Member • Dec 27, 2011

    1. If tried to do so the mAH rating would be proprtionally reduced to half.
    2. If u stepdown the voltage to increase the current , to achieve its double capacity i.e 10 Amps., the voltage would wear down to 12 volts making it useless for the given appliance.
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  • Harshad Italiya

    Member • Dec 27, 2011

    neo23
    1. If tried to do so the mAH rating would be proprtionally reduced to half.
    2. If u stepdown the voltage to increase the current , to achieve its double capacity i.e 10 Amps., the voltage would wear down to 12 volts making it useless for the given appliance.
    Agree in this case first have to check if that lower voltage is not problematic then we can use such step down chip which gives higher current.
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  • RRITESH

    Member • Dec 28, 2011

    I want to increase the amount of current from 5amps to 18amps.....am using 24V battery as a source . Please help me to deal with this problem .
    That mean you are using 12V battery in series to have 24V(i think).
    If you want to increase the current connect same voltage rating battery current will not matter.
    and if you don't want to connect more battery in this case the current values always depends on the load resistance,too...!!
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  • Harshad Italiya

    Member • Dec 28, 2011

    RRITESH
    That mean you are using 12V battery in series to have 24V(i think).
    If you want to increase the current connect same voltage rating battery current will not matter.
    and if you don't want to connect more battery in this case the current values always depends on the load resistance,too...!!
    There is only one battery of 24V, and yes current depends on load resistance but you can't draw more than its rated capacity.
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  • neo23

    Member • Dec 28, 2011

    godfather
    Agree in this case first have to check if that lower voltage is not problematic then we can use such step down chip which gives higher current.
    Now this is a question that the asker of this question can answer. Whether 12 volts is ok with him. And whether he wants the battery too be used on the same appliance or what?
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  • Harshad Italiya

    Member • Dec 28, 2011

    neo23
    Now this is a question that the asker of this question can answer. Whether 12 volts is ok with him. And whether he wants the battery too be used on the same appliance or what?
    I read somewhere in another section by the same user he might want to use this battery in the process in which they are generating Hydrogen.
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  • neo23

    Member • Dec 28, 2011

    seems
    godfather
    I read somewhere in another section by the same user he might want to use this battery in the process in which they are generating Hydrogen.
    like a small projectwork. a full schematic circuit sdrawing would help me to explain every aspect clearly
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  • PraveenKumar Purushothaman

    Member • Dec 28, 2011

    Is this possible with DC source? As, AC can be amplified or transformed... 😀
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  • Harshad Italiya

    Member • Dec 28, 2011

    Praveen-Kumar
    Is this possible with DC source? As, AC can be amplified or transformed... 😀
    We can use high speed DC switching.
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  • neo23

    Member • Dec 28, 2011

    Power converetor ics can be used. I am sorry to use the word transformer
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  • Harshad Italiya

    Member • Dec 28, 2011

    Can't we use Transistor as a Current Amplifier?

    Reference Links:-
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    #-Link-Snipped-#
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  • neo23

    Member • Dec 28, 2011

    Transistor is practically more of a current limiter than an amplifier. In the links given by you what happens is that you are giving a minute current in the base emitter part. Whereas on the other hand you have a battery connected which is capable of giving some current , lets say 5 A (max.) . you can control it between the range 0 to 5 ampere { only in the mesh collector , emitter and the battery}. you are practically amplifying nothing but just controlling the current by a small amount of current in the base emitter junction.
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  • Mr.Don

    Member • Dec 29, 2011

    Then it seems only possibility is the transformer as it can do with it turns ratio but even though it does, the losses will be pretty high as well as the losses depend on current!

    However, cannot we cannot draw more current than rated though since power will always remain constant as these Voltage and current values will vary depending on P=VI.
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