can i input a sine wave from asignal generator to a op amp voltage follower

 

A qualified...yes.

More details???

Ken

 

Of course it can be led in as an input, but without any details it's impossible to say how any op amp would respond.

 

i am using the voltage follower to drive a transformer(basically 2 coils wound in a tube) .there is parallel LC circuit to resonate it. but i am not getting anything. how will i drive the transformer to get a better output

 

How about posting a schematic?

Ken

 

i only have a scribbled schematic. i can describe it. signal generator-voltage follower-capacitor parallel to the primary -output from secondary.can anyone tell me how to drive the coils to get a better output

 

You probably need a more capable source to drive the transformer. We need details to assist with your problem.

 

i am using the voltage follower to drive a transformer(basically 2 coils wound in a tube) .there is parallel LC circuit to resonate it. but i am not getting anything. how will i drive the transformer to get a better output

Two coils wound on a tube might not give a very good k value. K is the efficiency of the transformer, always less than 100%.

Are the windings one atop the other? Separated? Wound together with the conductors side-by-side?

Is the tube of powdered ferrite? Iron? Plastic?

What frequency are you injecting?

 

the winding are separated.the tube is an insulation material i used a ferrite piece to go thru it.when it reach the middle of the coil it gives o/p

 

What frequency do you use? What value is the capacitor? Is it electrolytic or some other type?

If you don´t answer our questions, we can´t help you.

 

i am using 22kHz sinewave . i calculated the capacitor value as 0.3uF. so it resonates at a that frequency.but the output is disturbed.

 

What is the impedance of the transformer primary? Can your signal generator drive that load?

 

The capacitor has to be ceramic or film, polarized electrolytic cap will distort one polarity of the sine wave.

 

impedence is arround 170uH. i am using non polariced capacitor . do i have to increase the no. of turns to get better performance

 

An opamp can drive an impedance of 2k ohms and higher.
A lousy old 741 opamp works at frequencies of only 9kHz and lower.