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48 VDC 12.5A 600W Regulated Power Supply
Would there be any way to use a 12v trigger with this power supply?
Unfortunately you would need to build a full relayed circuit with this power supply in order to use a triggered input.
Date published: 2014-04-16
Possible to do remote turn on/off
Is it possible to hook up a remote turn on/off to this power supply? If so, how?
Unfortunately this does not have any kind of trigger or remote turn on feature like an automotive amplifier. The only way would be an in line switch on the power cord.
Date published: 2013-03-12
Can you hook up (2) of those in parallel?
I'm looking to build 2x250W IRS2092 based Class-D amplifier (p.n. 320-313# and trying to achieve the lowest distortion possible at 4 Ohm using B-G RD50 Planar Transducer. I would like the power supply to cover the worst case peak current of 16A #8A per channel; 250W/ch; Re=4Ohm# and still have some headroom left over.Is it possible to connect #2# of those power supplies in parallel to double the current capacity? I that case I'll need #4) power supplies total. I'll be isolating the metal cases from one another.Thanks,Will
You may well be able to parallel two of these supplies but you'll have to use some isolation diodes between them to keep the two supplies from looking like loads to each other. Here's what I mean. Some types of switching power supplies are sensitive to what they see on their output as they "start up". Also, some supplies start up a little faster than others. At times, the slower supply might interpret the voltage that just showed up on its output terminals (from the faster supply) as an overload condition, causing the supply's internal protection to shut the supply down. Thus, it never starts. Adding the isolation diodes (I use a big full wave bridge mounted on a heatsink) allows both supplies to start normally. Well, it should, anyway. With this kind of voltage and current available, proceed cautiously. You don't want to smoke anything. You may also want to add a load resistor across the output to draw 50 milliAmps or so. This lets the output of the supply "see" a ground reference and helps with stability. I don't guarantee this will work with this particular supply, but I've used it successfully in the past, so it's worth a try.
Date published: 2013-01-20
Can you put a step-down transformer on the output?....
...To lower the voltage to a usable level with the sure 6x100w Class-D Amplifier board, or would the added Inductance mess with the clean output?and yes I know there'd be power loss. Ohm law.... really important ;)
Unfortunately this is not possible because this is a switching power supply.
Date published: 2012-11-12
car amp ?
i was wondering if this could be used to power a car amp in the house ?
No, it could not. Car amps run on 12V, whereas this power supply outputs 43 - 56V (user-adjustable). You'll need to find a power supply that outputs 12V, and which can handle as much current as your car amp requires.
Date published: 2013-07-25
My question is actually, how the voltage is given. Both the amps and the powrsupply state a rating, but what is really importan is the way it is given
The power supply states it 48VDC and up a bit, but is this rating across the supply or is it +/- 48V center tapped. Not all equipment use center tap and then if this is +/- 24V it makes huge difference.I noticed that these amps can go from 14 - 39 VDC so if the supply is +/- 24 it will work, but not to give the amps their full power as it is likely by the specs that it would require around 36V. Now that makes also a big difference for what you are expecting.Also the amplifiers are 36VDC. Is this +/- 36VDC and is this the maximum voltage, in which case this power supply if it is +/- 48VDC much too big. For some reason I've noticed that power supply voltages don't mach lots of DIY amplifiers. Like they tend to be low or high. This supply would be good for amps requiring +/- 48 - 60 VDC. The important thing as I mentioned is to mention the way voltage is give and if unit is center tapped. Even if it is most likely that modern high power amps are + ground - it might not be clear all the builders and somebody might have old transformer around that provides 35 and up voltage without center tap and might think that it would work. Also in this add page it would be good to make sure that power supply doesn't burn the amp because the high voltage as it is obviously meant for these amplifiers at least the way it is on the page.As you can see there is quite a difference on the way information is given and it can cause disappointments number of way to customers me including because I have been looking for a easy to setup system and at the moment the power supply is my biggest need and that somewhere +/- 40 - 60 VDC 300 - 600W
There is no center tap. This power supply is 43-56 VDC from ground to positive voltage. None of the power supplies or class-D amp boards sold here use a negative voltage. This power supply can be adjusted to the max 56 VDC to run 320-313 amplifier, which requires 55-65 VDC.
Date published: 2013-05-17