Features

• DC – DC converters compliance to MIL-STD-883B
• EMI-EMC Filters compliance to MIL-STD-461C
• Output Voltage disable Control
• Remote Sense for Single Output model
• DC-DC converters controlled by Micro-Controller 87C51
• Airborn Connectors as per MIL-STD for inputs and Outputs
• Temperature Controller board based on 87C51 Micro-Controller
• Temperature sensing is done by MAX1619 sensors
• Sensor Temperature monitoring & threshold levels programming done through SM Bus protocol, 2-wire serial interface.
• RS-232 Serial Communication for Temperature monitoring
• Conduction Cooled

Application

• To provide Standard VME Power Supply to VME Mother Board & to control surrounding temperature
• Also useful where outputs of 5V@ 40A, 3.3V@ 15A, ±12V @ 1A is required.
• Ideally suitable for High reliability application for Military, Aerospace & Space.

Specifications of VME Power Supply

• ✓
  Input Power (DC) :
  28V@ 30A range (16 – 40V) as per MIL - STD - 704D
• ✓
  Output Power :
  350W
• ✓
  Size of Chassis :
  175mm x 160mm x 35mm with special wedge-Locks
• ✓
  Individual Output Power Ratings (DC):
  
  
• +5V@ 40A, 200W
  +3.3V@ 15A, 50W
  –3.3V@ 5A, 16.5W
  +12V@ 1A, 12W
  –12V@ 1A, 12W
  +5V@ 1.5A, 7.5W
  +2V@ 0.4A, 4.8W
  
  
• ✓
  Relay Rating (MIL Grade):
  Start-up Heater Relay 16V – 40V @ 25A
  Operation Heater Relay 16V – 40V @ 10A
  Operation Cooling Device Relay 16V – 40V @ 10A
  
  
• ✓
  DC – DC Converters :
  Compliance to Military Standards with Output Powers Disable Control.
• ✓
  EMI Filter :
  Compliance to MIL - STD – 461

Power Connectors:

• Input Power Connector:
  28V @ 30A DC supply and return from Aircraft supply
  
  
• VME Backplane Power Connector+5V @ 40A, +3.3 @ 15A, +12V @ 1A, -12V @ 1A,-.3V @ 5A, ACFAIL, SYSRESET and return Signals.
  
  
• Temperature Controller Power Connector
  +5V @ 1.5A and return signal. Relay enabling and out enabling control signals.
  
  
• Switch Power Supply Connector
  Start-up heater power
  28V @ 25A
  Operational heater power
  28V @ 10A.
  Cooling device power
   28V @ 10A.

• Cooling : Conduction cooled
  
  
• Operating Temperature : -40°C to +125°C full power operation without Degradation
  
  
• Grounding Scheme : The Circuit ground is isolated from the chassis ground so as to enable Faraday EMI shielding