phase inversion of audio

[prtk]

i want to make a bridge circuit for two channel. can any one suggest one

 

[JonSnell Electronic]

I would use an inverting buffer. A standard op amp with the signal on the inverting input will do it.

Non inverting; use the + pin as your input.

 

[rayma]

I would use an inverting buffer. A standard op amp with the signal on the inverting input will do it.

Yes, and you may need input and/or output coupling capacitors as well.

 

[prtk]

i used a 741 bt it dint worked. please suggest some circuit

 

[Cortez]

Let me google that for you

And the 741 should work as well:
Lesson 4 - Op Amp Filters - National Instruments

 

[JMFahey]

You already have it: the circuit posted by Jon Snell, with R1=Rf , value can go from 10k to 100k each, 741/TL071 fed +/-15V

EDIT:
Cortez's link shows it in more detail and the practical Protoboard test.

 

[vzaichenko]

Very good approach from Rod Eliott. Aligned impedances, etc.
Bridging Adapter For Power Amps

Cheers,
Valery