Audio Project Amplifier Speaker Loudspeaker Kit
diyAudio.com diyAudio Forums Archive > Top > Amplifiers > Chip Amps
 
OPA549 GC for Car - Click HERE for Original Thread
abid_rehan
Hi guys:
I have lots of OPA549 chips lying around and was thinking of designing a GC for subwoofer to be used in my car, OPA549 data sheet suggests that it could be operated via single supply, as I am a usual lamer, therefore i was looking forward if anyone in this forum could guide me as how to make a GC with OPA549 with single supply of 12Volts?
Any help will be appreciated.
:whazzat:
bigmike216
it can certainly be done, but at 12v single supply, you're not going to get more than a few watts..
mod_evil
Hi friend, how i found rms in my OPA549T amp?
Sashi
quote:
Originally posted by mod_evil
Hi friend, how i found rms in my OPA549T amp?


Hi Friend,look here
http://www.diyaudio.com/forums/show...?threadid=14768
mod_evil
Ohhh friend, thanks for the link! When i paraleling 2 OPA549 the W drouble?
bigmike216
the wattage won't double when you parllel, unless you're driving low loads. Bridging will though.
abid_rehan
Well I was planning to use three OPA549s in bridge parallel mode as mentioned in data sheet, and it will deliver some nice output, but my question remains the same
HOW TO USE 12volt supply?
any ideas/ suggestions?
mod_evil
http://www.diyaudio.com/forums/show...3501&highlight=

You need connect the V- to the GROUND...


Thanks.
abid_rehan
thanks mod_evil , link that u have posted is of great help, let me work out the schematics for bridged parallel woofer for car and i ll post the same here.
Rehan
mod_evil
Okay... Can you post in here the schematic of your bridged parallel OPA549?
mod_evil
The Schematic of single supply : OPA549 http://www.diyaudio.com/forums/atta...amp=1110921201&
abid_rehan
sure i will post the schematics here.

Page generated in 0.030970096588135 seconds with 17 queries,
spending 0.01036835 doing MySQL queries and 0.02060175 doing PHP things.

Powered by: Search Engine Indexer and vBulletin
Copyright ©1999-2008 diyAudio.com