Power Supply Unit for VME (PSV)

Power Supply Unit for VME (PSV)

EKE Trainnet® PSV1513A Front EKE Trainnet® PSV1513A Side EKE Trainnet® PSV3033A Front EKE Trainnet® PSV3033A Side
module functions

The Trainnet® Power Supply unit for VME (PSV) is a highly reliable switching mode power supply module. It works only together with the Trainnet® PIU module which takes power from the train batteries and transfers it to the Trainnet® PSV module. The Trainnet® PSV module is specially designed for VMEbus systems.


key features

The Trainnet® PSV can be operated with a 24, 36, 48, 52, 72 or 110 V DC coach supply voltage (via the Trainnet® PIU) and provides 5 V DC and 12 V DC output powers. In practice, you have to choose between four input voltage values: 24 V DC (PSV1133C), 36 to 52V DC (PSV2513A), 72 V DC (PSV1513A) or 110 V DC (PSV1018A). The Trainnet® PSV has built-in circuitry to detect and control the input current in the event of a power-up. Controlling the inrush current prevents component damages.

When the input supply voltage is below the set minimum value, Trainnet® PSV minimizes current consumption in order to prevent the deep discharge of train batteries. The Trainnet® PSV grace supply function enables the module to continue working for a short period of time when the power is cutoff. The PSV module withstands 10 ms input power breaks without disrupting any of the normal operations (Voltage Supply Interruption as per EN50155 Class S2 and Supply change over as per EN50155 Class C1). If the break lasts longer, the power supply is capable of supplying a +5 V DC output during a minimum of 100 ms after the input power is lost (80 ms for PSV1133B). The ACFAIL and SYSRESET signals are activated to ensure proper shutdown of the systems. This feature allows the system to record sub-system and module states during the shutdown, thus enabling event diagnostics.



  PSV1133C PSV2513A PSV3034C
PSV1513A PSV1018A
Standards: EN 50155, EN 45545
Dimensions (W x H x D): 8 TE x 3 U x 160 mm
Weight: 500 g 500 g 470 g 500 g 500 g
Temperature Range (operational):  -40 °C…+70 °C
MTBF (40 ° C ambient temperature): 690 000 h 690 000 h 700 000 h 690 000 h 690 000 h
Input Voltage (V DC):  24 36 to 52 48 to 110 72 110
Input Voltage range (V DC):  16.8..30 25.2..65 33.6..143 50.4..90 77..138
Input Fluctuation (1s) (V DC):  14.4..33.6 21.6..72.8 31.2..154 43.2..100.8 66..154
Input Current (<0.1s/1s), max.: 5 A 4 A 3 A 3 A 2 A
Input Power, max.:  80 W 75 W 100 W 100 W 100 W
Supported supply interruption (S2): 10 ms 10 ms 10 ms 10 ms 10 ms
Efficiency: > 78 %
Output Power: 60 W 54 W 80 W 80 W 80 W
Output Voltage 5 V DC:          
Maximum Output Current:  8.5 A 8.5 A* 13 A 12 A 13 A
Minimum Output Current: 0.5 A 0.5 A 0.1 A 0.5 A 0.5 A
Ripple/noise p-p: 50 mVpp (<20 MHz)   
Output Voltage Hold-on:
(at nominal load)
80 ms  100 ms 100 ms 100 ms 100 ms
Output Voltage: 5.15 V DC ± 2 % (at nominal line, nominal load)
  5.00 V DC (at line range, load range)
Output Voltage 12 V DC:          
Maximum Output Current:  1.25 A  2 A * 1.25 A  1.25 A  1.25 A
Ripple/noise p-p: 50 mVpp (<20 MHz)   
Output Voltage: 12.15 V DC ± 2 % (at nominal line, nominal load)
  11.80 V DC (at line range, load range)


* Total output loading must not exceed Output power

Published on: 2020-08-10

EKE-Electronics Ltd
Piispanmäentie 5
02240 Espoo
Tel +358 9 6130 30