Parallel with different chips!

[tiltedhalo]

It is possible to use two different chips in a bridge config, one as a voltage source and one as a current source. Chip A runs at a low volt supply but must be able to match chip B's current capabilities, chip B provides voltage gain and current output.
Yamaha used this in some of there descrete class A designs.
one side was a low volt high current class A bridged with a High volt class AB.
As for just parelleling two different IC's it would be possible but would require a great deal of design work. I might have to play with this idea a little bit, anybody got ideas on chips?? I've built many BPA designs useing LM's But havnt done much with TDA's or others..............

[I_Forgot]

Originally posted by tiltedhalo
It is possible to use two different chips in a bridge config, one as a voltage source and one as a current source. Chip A runs at a low volt supply but must be able to match chip B's current capabilities, chip B provides voltage gain and current output.

Screw all that. Just wire them in parallel. I say never be complete, I say stop being perfect, I say let's evolve, let the chips fall where they may.

I_F

[sam9]

Hey, I like this idea. This is thinking "out of the box"!

To jump back in the box (partly) why not precede them with an active crossover? One RCA jack in--> two pairs of binding posts out. It could all fit on one PCB. You might want to provide jumpers so you try swapping HF vs LF input to the amplifier chips see which does which range better.

[Leolabs]

Thought that before,but with LM3886 + TDA7293/4.

[I_Forgot]

Originally posted by sam9


To jump back in the box (partly) why not precede them with an active crossover? One RCA jack in--> two pairs of binding posts out. It could all fit on one PCB. You might want to provide jumpers so you try swapping HF vs LF input to the amplifier chips see which does which range better.

That's biamping, not parallel with different chips.

I_F

[gmphadte]

They will work or not is a different issue, but for sure, the sound will be smeared due to infighting.

Gajanan Phadte

[jayshree]

The TDA2050 is not powerful enough. & i want to more current by TDA2050 can i use in parallel...plz... any idia.........any one..

[AndrewT]

Jay,
if the chipamp cannot meet the duty you want to impose, then it's obvious (to me) that you should choose an amplifier type that can meet the duty you require.

[bigcatdairy]

Originally Posted by tangmonster

I might be wrong but

building a car with two of the same type of engines connected to one gearbox seems like a possible solution to get more torque.

But building a car with two different sized engines connected to one gearbox seems to be just not a good idea. It will probably work, you may have a bit more power , but a single engined car will be so much lighter en simpler and easier to service...

just my feeling on this idea.

easy to understand~