So I hooked up a new one the way I think it should be hooked up just to make sure I wasn't missing something else. Well when I conected teh battery power to the system the dc to dc converter went up in smoke.
Back to the drawing board :-(
Also when I connect power from the battery there is a pretty big spark.
If I was to put some filters on the input of the dc to dc converter what would I use?
I think I am going to order a different version and manufacture. I have already toasted two of these at $29 each LOL
Mike
Back to the drawing board :-(
Also when I connect power from the battery there is a pretty big spark.
If I was to put some filters on the input of the dc to dc converter what would I use?
I think I am going to order a different version and manufacture. I have already toasted two of these at $29 each LOL
Mike
Here is a diagram of my system. Not the most sophisticated drawing but you get the idea 
An externally hosted image should be here but it was not working when we last tested it.
That looks right to me.
I seriously doubt this is a question of improved filtering from a battery supply. IMHO you need to remove all the extraneous connections and get the proper 48V and ±12V DC supplies to the amp board. Then add connections one by one until everything is together.
At idle there should only be about a 1 watt draw from the converter. To me the problem suggests something with the connections or something on the amp board.
I seriously doubt this is a question of improved filtering from a battery supply. IMHO you need to remove all the extraneous connections and get the proper 48V and ±12V DC supplies to the amp board. Then add connections one by one until everything is together.
At idle there should only be about a 1 watt draw from the converter. To me the problem suggests something with the connections or something on the amp board.
OK I think I may have figured out a problem.
The DC to DC says -Vin and +Vin. does that mean it is looking for a -48v and not just a ground or common?
My 48v power source is a Battery, I dont think the ground is a -48v but I could be wrong.
IcePower says the -48v input is common ground on the amp board. So basically it is connecting the - on the input and the common on the output of the DC to DC converter together.
Could this be my problem? and if so what do I do?
Mike
The DC to DC says -Vin and +Vin. does that mean it is looking for a -48v and not just a ground or common?
My 48v power source is a Battery, I dont think the ground is a -48v but I could be wrong.
IcePower says the -48v input is common ground on the amp board. So basically it is connecting the - on the input and the common on the output of the DC to DC converter together.
Could this be my problem? and if so what do I do?
Mike
Yes I did and they measured good.
I just bought another manufacture and hooked it up and it worked. I guess the Murata can not have its input ground and the output common connected which is what the Icepower does on the board.
So I finally figured it out and its perfect!!
Thanks for all the help.
Mike
Aha! Bummer it took a few fried components to determine that...
I'm very glad to hear that you found a solution! Congrats!
Thanks!!
I guess you always have to fry some stuff to make the Electrical gods happy LOL
The system sounds amazing.
this is hooked up to a JBL EON 305 with the amp and battery pack mounted to the back of the speaker.
Super crazy loud, portable, waterproof, and battery powered, PA system.
It will run for about 25 hours at full blast with Dub step music at 108db. Or about 150 hours of normal music at 98 db on a charge.
Oh yes!!
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