|15th October 2012, 09:14 AM||#11|
Join Date: Nov 2003
The battery shouldn't ever be that low. It would only be used to deliver current when the supply was overloaded. If it did get discharged, you could insert your current limiter between the supply and the battery until it charged.
Diodes will run very hot and will have to be the type that you can mount to a heatsink if you want to use them.
I have a battery disconnect that I use to break the connections between the battery and my power supplies. I don't often use the battery so it's generally disconnected. If I don't use it for a month or more, I'll turn the switch on so the battery can fully charge but it generally only takes a few minutes.
|14th April 2013, 02:37 PM||#12|
Join Date: Nov 2011
Location: perth, west australia
This is my testing bench and doubles as shed tunes as well.
The power supply is detailed on this thread on page 1. The resistors are 4x 200w 8 ohm and are configured as 2x 400w 4ohm. they can be bridged to be 800w at 2ohm. i have seen them at 96c with my digital temp gauge.
Stereo head unit is a old one from my proton ute, the front outputs are connected to 2 4" speakers in boxes (1 in pic). The stereo has rca rear outputs and these are used for the amp testing.
Also I have a sony 12" 1400w boxed sub for testing and tunes.
There is a choked power output via a small wire that is coiled up in the pic, it has a 10a fuse and a 35w light to restrict the power.
My next addition will be a digital volt panel meter for the front of the power supply, so i can check at what stage I am running out of power supply. But at present it seems plenty big enough. the sony sub is running out of travel at times it seems.
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Portable speaker power supply||johnnyfive82||Power Supplies||1||7th March 2011 04:18 PM|
|portable 12v power supply||forkfingers||Construction Tips||9||10th April 2010 09:27 AM|
|Power supply testing||AmpBuilder225||Tubes / Valves||5||8th March 2009 07:52 PM|
|Portable Power supply for 2ch amp||brougham99||Power Supplies||1||26th July 2008 04:15 AM|
|Power supply performance testing? How To||Zero Cool||Power Supplies||15||1st June 2005 01:25 PM|
|New To Site?||Need Help?|