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Aircraft 28VDC Power Supply Model M-162



Aircraft 28VDC Power Supply Model M-162

The 28 VDC Aircraft Power Supply has been designed to enable our customer’s product to operate from 28 VDC aircraft power. Originally the product was designed to operate from 110 VAC 400 Hz aircraft power. Eon was contracted to re-design the 110 VAC power supply to operate from 28 VDC aircraft power while maintaining all of the existing features of the original supply. The Aircraft Power Supply is qualified to meet the EMC and environmental requirements of RTCA / DO-160C Category A / Z for commercial aircraft. The Power Supply includes input and output filtering, input power monitor, input power fault detection, power-up soft start & delayed start, line and load regulation, hold-up for input power interruption and hold-up for external memory during input power interruption. This power supply is an example of Eon’s ability to modify an existing product to meet new requirements.



Primary Power
  • Primary Power: 28VDC ±6VDC
  • Maximum Current: 10 amps


Environmental
  • Operating Temperature: -40°C to +71°C
  • Non-Operating Temperature: -40°C to +71°C
  • Shock: 10g’s for 11mS.
  • Vibration: Double amplitude, sinusoidal ±2g’s from 20 Hz and 500 Hz.
  • Cooling: Radiated through cast aluminum heat sink.


Mechanical
  • Weight: < 4 pounds
  • Size: Depth 10.0”, Width 5.0”, Height 2.0”
  • Mounting: 9 each threaded 4-40 inserts.

  • Output Voltages
  • + 24VDC @ 4.0 amps
  • + 5VDC @ 10.0 amps
  • +15VDC @ 0.75 amps
  • - 15 VDC @ 0.75 amps


  • Connector 37S Type D (Amp 745784-4)
    Pin Function Pin Function
    1 +5VDC 20 ACPF
    2 +5VDC RTN 21 DCPF
    3 PWR IND 22 VBAT
    4 ON/OFF 23 -15VDC
    5 +15VDC 24 +5VDC
    6 +15VDC 25 +5VDC
    7 +15VDC 26 +5VDC
    8 +15VDC 27 +5VDC
    9 +15VDC 28 PTEMP
    10 +15VDC 29 GND
    11 +24VDC CONTROL 30 GND
    12 NO CONNECTION 31 GND
    13 SELF TEST 32 GND
    14 GND 33 GND
    15 GND 34 GND
    16 GND 35 +24VDC
    17 +24VDC 36 +24VDC
    18 +24VDC 37 +24VDC
    19 +24VDC    

    Connector 9P Type D (M24308 / 1-1)
    Pin Function Pin Function
    1 +28VDC 6 GND
    2 +28VDC RTN 7 +28VDC RTN
    3 +28VDC 8 NO CONNECTION
    4 +5VDC 9 +5VDC RTN
    5 GND    


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