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converting dc 2-3V to 5-6V 500ma

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hamoon2006

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Hi i want to make a project which is converting 2-3 DC to 5-6 DC 200 -500mA . MAKES ME happy if someone helps me
 

Hi.

You need an analog adder circuit. You also need an analog inverter after that to get voltage out being positive.

You can't use a regular noninverting opamp circuit unless amplification != 1.
 

Prototyp_V1.0 said:
Hi.

You need an analog adder circuit. You also need an analog inverter after that to get voltage out being positive.

You can't use a regular noninverting opamp circuit unless amplification != 1.
Click to expand...

I'm baffled by you answer. I was going to say you need a DC-DC converter or boost converter!

Check out national.com. You can input your input voltage, output voltage & current and it will give you the chips and design to do it.

Keith
 

keith1200rs said:
I'm baffled by you answer. I was going to say you need a DC-DC converter or boost converter!
Click to expand...
Or using just a simple complementary transistor pair that can output 500mA.
I didn't take my time to draw the complete circuit.

Fact is that treadstarter haven't provided that much information. If output consumption is to be 50mA over long time, then PWM could be a better choice.


Oh, I just get it. Question above is equivocal. I assumed that a 2-3 volt signal should be amplified to 4-5 volts, where a power supply is already avaiable.
However, you assumed (i guess) the 2-3 volts IS the only powersource and it's neccesary to boost it to 4-5V.

Treadstarter must make that clear to make it possible to answer it :roll:
 

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