Project Description

Description

The VME Power Supply Family – filtered 28 Vdc, up to four outputs (3.3, 5, ±12 V), up to 550 W – is a MIL-COTS solution that is compliant to the input transients per MIL-STD-704F (VME450) or MIL-STD-704A/F and MIL-STD-1275D (VME450G and VME225) as well as the vibration requirements per MIL-STD-810F and EMI per MIL-STD-461E. When compared to conventional technology VME power supplies, VME family provides users with higher efficiency (up to 85%), lower weight (VME450 – 2.4 lbs, VME225 – 1.2 lbs ), and higher power (up to 550 W). Built with Vicor V•I Chips, it uses M-FIAM modules, and MIL-COTS PRMs and VTMs.

An extended heat sink version of the VME450 and VME450G are also available.

Specifications

Input Voltage:
  • VME450: Meets MIL-STD-704F normal range22 Vdc to 29 Vdc, 28 Vdc nominal, 50 Vdc 12.5 ms transient
  • VME450G: Meets MIL-STD-704A/F and MIL-STD-1275D, continuous operation
    22 Vdc to 33 Vdc, 28 Vdc nomina,l 100 Vdc 50 ms transient
  • VME225: Meets MIL-STD-704A/F and MIL-STD-1275D, continuous operation
    22 Vdc to 36 Vdc, 28 Vdc nominal, 100 Vdc 50 ms transient
Output Power:
  • VME450 Family: 550 W max. all outputs combined
  • VME225: 225 W max. all outputs combined
Outputs:
  • VME450 Family: Four output voltages, 550 W(Refer to data sheet for details)
  • VME225: Up to four output voltages(Refer to data sheet for details)
Operating Temperature:
  • VME450 Family:• –40 to +75°C operating baseplate wedgelocks 550 W
    • –40 to +85°C operating baseplate wedgelocks 450 W
    • –55 to +100°C non-operating
  • VME225:• –40 to +75°C operating baseplate wedgelocks 450 W, 4 outputs
    • –40 to +85°C operating baseplate
    wedgelocks, 1 or 2 outputs
    • –40 to +100°C non-operating
Output Ripple:
  • 50 mV p-p max. (20 MHz BW)
    all except; +/-12 Vdc
  • VME450 Family: +/-12 Vdc, 100 mV p-p max.
    (20 MHz BW)
  • VME225: +/-12 Vdc, 150 mV p-p max.
    (20 MHz BW)

Features

  • 28 Vdc input transient compliance per MIL-STD-704F (VME450)
  • 28 Vdc input transient compliance per MIL-STD-704A/F and
    MIL-STD-1275D (VME450G and VME225)
  • Up tp four output voltages, 550 W (VME450 Family), 225 W (VME225)
  • MIL-STD-810F environments
  • MIL-STD-461E EMI
  • Utilizes Vicor’s cutting edge V•I Chips for industry leading power density
  • Single or half slot VME power supply
  • Extended heatsink version available for VME450 family

Mechanical Drawing

Drawing Number Description Technical Drawing
VME450-M00 VME450 Power Supply Mechanical Drawing PDF
VME225 VME225 Power Supply Mechanical Drawing PDF