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voltage to current converter in single supply.

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HIREN DAVE

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Hi,


I have 1 source that gives me 10V and 2mA. I want 5V and 10mA from this supply.. I have no other source. Is there any technique to increase current by decreasing a voltage????
 

You want 50mW but your source only gives you 20mW. So it cannot be done.
 
ok. got it...

Now, my another question is I have a point source of 0.75V and 1.3mA. From this source, i want to generate 3.3V and 750mA. Is there any other option to get these much voltage except increasing no. of sources???
1 option is to use around 2461 sources and connect it to series or parallel to generate this much voltage. Any other option???
 

No. You cannot get 2.5mW of power from a single 1mW source.
What is the nature of these 'point sources' and why have you picked the unusual number of 2461?
 

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