modified 11 years ago

Voltage follower

02:07:48

HELP ME GUYS ..... I cannot find what is wrong with my voltage follower.....

published 11 years ago

V4VISHNU111

11 years ago

It is not working....

smerk

11 years ago

I think there are 2 issues. 1- probe the input to the op amp instead of the voltage source. 2- Increase your open loop gain (just called gain in the op amp settings). A small increase brings the output higher. A huge increase never brings the output higher than the input. In the ideal op amp, open loop gain is infinite I believe.

Electronics3038

11 years ago

Put in a 50 ohm resistor between + & - .

sandyroman

11 years ago

I agree with smerk. You want to look at voltage in, and compare it to voltage out. If your open loop gain is high enough they will overlap. If you are looking at a currrent and voltage, then the arbitray vertical scale can be confusing.

V4VISHNU111

11 years ago

Yeah... The gain should be atleast 70 v/v .. 100 is good...

V4VISHNU111

11 years ago

THANKS GUYS.......

smerk

11 years ago

Sure. No problem!

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