VME Power Supply

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

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.

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Input Power (DC) :
28V@ 30A range (16 – 40V) as per MIL - STD - 704D
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Output Power :
350W
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Size of Chassis :
175mm x 160mm x 35mm with special wedge-Locks
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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
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Relay Rating (MIL Grade):
Start-up Heater Relay 16V – 40V @ 25A
Operation Heater Relay 16V – 40V @ 10A
Operation Cooling Device Relay 16V – 40V @ 10A
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DC – DC Converters :
Compliance to Military Standards with Output Powers Disable Control.
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EMI Filter :
Compliance to MIL - STD – 461

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

Specification Of Temperature
Controller Card

Controller	Micro Controller based
Flash Memory	60 Kbytes
Temperature Sensing	Eight channels with MAX-1619 ICs
Temperature Sensor Accuracy	±2°C
Temperature Sensor Operating Temperature	-55°C to +125°C
VME standard control signals generation	Power Fail, Sys reset supported
Power Supply inhibit	Supported
Power	5W Typical
Serial Port	Monitors the control Logic status on PC
Cooling	Conduction Cooled
Operating Temperature	-40°C to +125°C
Connectors	D Type 15 - Pin Right Angle Connector for +5V @ 1.5A,relay enabling and control signals. Two pin BergSticks Remote-temperature sensor for each Sensor and also for manual reset.