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Old 21st March 2013, 10:29 AM   #591
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wrong thread ..
Old 25th March 2013, 06:17 PM   #592
mesc is offline mesc  Norway
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I'm thinking about stacking two smps500r with long standoff's. They will be fairly close together to a maximum stack height of 95-100mm - each psu being 44mm tall.
Would this be advisable?

An alternate idea was to use a single smps800re, but that being a bit large and with little space in the case I'll have to raise the psu and have some part of the amp modules (l25d) underneath, and perhaps a speaker prot. under also.
Would there be any concerns with this configuration, perhaps some radiated noise issues?
Old 26th March 2013, 06:21 PM   #593
cod3gen is offline cod3gen  Norway
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Check and answer your email, cristi
Old 27th March 2013, 06:26 AM   #594
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mesc: the only possible issues are regarding safety, if the smps is not bolted tighthly and will move inside the enclosure in case of shock or drop, and the other issue is the heat dissipation. the smps below will get hotter if there is no airflow and is used for high continuous power. If there is a bit of airflow, I suggest to mount them face-to-face, either PCB-PCB or components to components and PCB's at the exterior and use a small fan to keep the temperature low.
the EMI at 10cm from the board or more is pretty low to not interfere even with preamplifier circuits. in near proximity to transformer the field is intense due to transformer construction and is not recommended to route wires at less than 5cm from transformer, and also, do not try to shield the board or the transformer directly.

cod3gen, pls resend mail and mention that is you, I can't recognize just after the nickname.
Old 27th March 2013, 08:39 AM   #595
mesc is offline mesc  Norway
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If i mount them vertically, pcb-pcb with the heatsinks on top and venting holes in the chassis.
Should be ok i think..?

But also you mention no direct shielding. I'm not sure what that means. Can I have a section for psu, separated by a wall? The wall will be fairly close to the outer module though, about 10mm.

I've made a rough illustration. The distances here is not correct, it will be much tighter.
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Old 27th March 2013, 09:41 AM   #596
cod3gen is offline cod3gen  Norway
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I sent it through your website.

What the dimensions of SMPS3K6QR, SMPS2000R? (Should have been added to your product details on webshop)
Whats the difference of the two 800w models?

The 2000, 3600 and 4800w models, are not regulated right?

Using 2pcs of 800W supplies, and 1pcs of for example SMPS3K6QR on the same main power line, would this have any bad effects? Since they are not linked.. Im thinking of EMI problems and things like that..
Old 27th March 2013, 07:43 PM   #597
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Dear all,

yesterday I received my SMPS800RE.
Today I was going to check correct operation by measuring main out voltage and aux voltage.
After bridging "Switch" input to get the unit to work, I connected the power plug.
After 3 seconds the mains fuse of the unit blowed.

There was nothing connected to the module than the power plug.

I cannot find any other reason for this than the unit is broken.
Do you have any idea?

Old 29th March 2013, 06:56 AM   #598
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Mesc: seems fine, if you can drill some holes on the enclosure for ventilation. the smps has a small thermistor on the mains side power transistors which will shut-down the smps if the temperature rise above 85*C which can happen in a sealed enclosure. the highest normal working temperature is about 55-60*C on the secondary diodes heatsink or transformer windings. durring tests, I overload the SMPS500R and keep in a seled enclosure till it reach the OT tripping point to make sure will work properly. but of course this is an exceptional situation and should not be encountered often in real life situation, because it shortens the life of capacitors if they are exposed to high temperatures and high ripple current for long periods of time. nice drawing, btw

Cod3gen: please, send the mail again. haven't received anything. if you use a mail address of a less often used domain, private or something which for some reason was in a spam blacklist, the mails are filtered.
the size of the boards are as follows:
SMPS3600QR - 266X140mm and 55mm tall
SMPS2000R - 200X120mm the board only, and the heatslug version. the heatsink version has the heatsink extending 30mm outside the board, so consider 150mm wide. the height is ~40-45 mm depending on the capacitors used.
SMPS4K8 - 200x200mm and 58mm tall

SMPS2000R, SMPS800RE, SMPS800RS, SMPS500R, SMPS500RS, SMPS500RxE, SMPS300RE, SMPS300RS, SMPS240R has regulated and adjustable output voltage, the output voltage is stable from near zero load to maximum load while mains voltage varies within 210-240V or 100-125V AC.

SMPS3K6, SMPS4K8, SMPS200QR, SMPS500QR are the only Unregulated output voltage SMPS (I prefer to call them electronic transformer, although inproper name) where the output voltage cannot be adjusted by user, it is proportional with the mains input voltage and it decrease with load by a 5-10% from zero to maximum load depending on several factors among with them being the mains network impedance.

TriplePower, we already spokt by mail and arrange unit replacement.
Old 31st March 2013, 05:48 PM   #599
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TriplePower, we already spokt by mail and arrange unit replacement.[/QUOTE]

That´s correct. I posted this before I received feedback from you.

p.s.: I am still not clear about the poin assignment of the IRS2092 Stereo Amp:


Can somebody please help me and show the complete pin assignment of all connectores?

You could provide a piece of paper with the pinning for IRS2092 Stereo amp when shipping. (Or label all pins on the PCB)

Old 9th April 2013, 03:58 AM   #600
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Location: Puyallup, WA

Is there a "SMPS2000RxE" version of the SMPS2000R in the works? I would like to build a 5 channel amplifier using your IRS2092 based modules (probably your CxD500) and, in that case, would need the other differential and DC voltage required by that design.

Is bus pumping significant enough that i should consider doing a 6 channel and reversing three of the channels?

Do you have any DIY chassis recommendation with appropriate heat sinking for a multi-channel design using this unit. You mention 12-24 modules in a chassis and wondered if there were any reference design documents etc.




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