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dc current amplifier

thread248-7404

dc current amplifier

dc current amplifier

(OP)
I need help in creating a dc current amplifier.  The current/voltage source would be a battery.  The amplifier could be multi-staged.  I would like the output current to be in the range of 50 - 100mA, and the input current being in the range of 5 -10 mA.  Could someone make a recommendation of what type of amplifier circuit would be best suited for my needs?  Resources would be helpful too.  Thank you very much.

Nathan (s0naharn@yahoo.com)

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RE: dc current amplifier

(OP)
thank for the sites, they proved helpful!

Nathan (s0naharn@yahoo.com)

RE: dc current amplifier

How much voltage drop can you afford on the sense R ?

Is the sense resistor in the GND or in the + or - supply line or floating ?

How much accuracy do you need ?

Is trimming/adjustment/resistor selection acceptable ?

If the output is processed by microcomputer, it can store the calibration factor, too.

<nbucska@pcperipherals.com>

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