Removed from professional broadcast industry equipment (analog and now obsoleted), fully functioning however retested in my workshop before advertising.
EOS are a major worldwide designer & manufacturer of SMPS power supplies
EOS SMPS
USA company but it appears they sent manufacturing offshore (India)
Industrial Compact Low Profile
24V DC output @ 80W (convection cooling) or 130W (forced air 15CFM)
Model: LFVLT130-1103S29
AC input: 80 ~ 240V 50/60Hz
Supplied with interconnecting leads
THE DESIGN:
Compact, low profile
127mm x 78mm x 24mm
Module weight: 250g
This is not just your ordinary SMPS but has these features:
MTBF 150kh (over 17 years continuous operation!)
Load Regulation 1%
Ripple: Peak to Peak 1% maximum (20 MHz bandwidth & 10 μF (Tantalum capacitor) in parallel with a 0.1 μF capacitor)
Over Voltage & Current protection, autorecovery
2 independently regulated channels. Channel A consists of main output V1A and Channel B consists of main output V1B - the power rating is overall NOT per channel.
Can be connected as a 1+1 redundant power supply (See photograph for connection options)
COSMETIC CONDITION:
Clean and undamaged
All supplied connecting leads remain as original, with connectors in place
TESTING:
Basic "power up" testing, ensuring I had 24V DC output under load on each channel - all were tested between 23.65V & 24.00V.
I then also made sure that each trimpot (clearly marked on the unit) adjusted the channel voltages (each channel can be independantly adjusted of the other channel). Voltage change was smooth and "fine" in nature, meaning I could easily set the voltage at 0.1V divisions and over a range of roughly 1 Volt on each channel, so if you wanted the outputs to be exactly 24V on either channel, this is easy to achieve.
I am confident that this unit is functioning fine, within the limitations of my testing i.e I did not set it up for redundancy mode for example.
NOTES:
1) The underside of the module is NOT insulated, you will need to allow for this when installing in other equipment (flat plastic sheet for example) although I am supplying this unit on a sheet of insulating foam anyway. 4x metal standoff's are also supplied to assist with mounting onto a chassis.
2) There is a 2 pin Molex connector denoted as J4 on the module but I cannot find any references as to it's purpose. It measures 12V DC and I have tested this under load (a fan) and it is able to provide at least 100mA or so without problems. A bit strange though, I cannot find any EOS documentation about J4 and in the original equipment, the forced air fans all ran at 24V DC from the module output.
I do have some basic technical specifications, etc for this SMPS module (if requested) and some extracts are showing in the photographs.
It does appear that this range of SMPS from EOS is now discontinued but I do see some online distributors (e.g RS Electronics Norway) with stock and asking around A$150 - A$200 per module, wholesale!
Since removal from the original equipment, this module (sitting on an insulating foam bed) with the interconnect leads is now sealed in plastic
