150W Dual Output MIL-SPEC Power Supply
1 • Scope
This preliminary specification outlines the electrical and mechanical characteristics for a 150 watt, dual output, military grade, dual input (AC or DC) power supply designed to operate from a single phase, 400Hz, 115VAC input power source or a 28VDC voltage source for airborne applications that require the power supply to function under harsh environmental conditions.
2.0 AC Input
2.1 Input Voltage Range: 95 – 138VAC (115Vac nominal input)
2.2 Frequency Range: 50/60/400Hz (47-440Hz)
2.3 Phase: Single phase, 2 wire plus ground
2.4 Typical Input Current: 1.5A at 115Vac input, full output
2.5 Power Factor Correction: 0.98 typical @ nominal input and full Load
2.6 Input Transient Protection: MIL-STD 704A/D (80Vdc for 100mSec)
2.7 Voltage Surge Protection: MIL-STD 1275A/D (100Vdc for 50mSec)
3.0 DC Input
3.1 Input Voltage Range: 18-36Vdc (Nominal Voltage: 28Vdc)
3.2 Typical Input Current: 6.5A at 28Vdc input, full output
3.3 Input Ripple: 15% Input Current at Full Load
3.4 Input Electrical Power: MIL-STD-704A/D (Transient compliance: 50Vdc for 0.1 sec.)
3.5 Input Surge Protection: MIL-STD-1275A/D (100Vdc for 50mSec)
4 • DC Output Characteristics
4.1 Output Power: 150W
4.2 Output Voltage: 5Vdc & 24Vdc
4.3 Output Current: 6A for 5V & 5A for 24Vdc (max continuous at nominal input)
4.4 Line Regulation: ±1.0% Typical
4.5 Load Regulation: ±1.0% Typical (No load to full load, nominal input)
4.6 Output Ripple: 1% Typical (pk-pk, nominal input, full load, 20MHz bandwidth)
4.7 Set Point Accuracy: ± 1.0% of Output Voltage (Nominal input; full load; 25°C)
4.8 Transient Response: Output voltage returns to within nominal output voltage with in 1500uSecs for a 50 to 75% load change.
4.9 Overshoot: Turn-on/turn-off overshoot should not exceed 5% over nominal voltage.
5.0 Electrical Characteristics
5.1 Switching Frequency: 360KHz Fixed
5.2 Efficiency: 87% Typical (Measuring at 115Vac input and full load)
5.2 Turn On Delay: 250 to 500mS (To nominal output voltage)
5.3 Isolation Voltage:
Input to Output: 2000Vrms
Input to Chassis: 1000Vrms
Output to Chassis: 1000Vrms
5.4 Isolation Resistance: 100Mohms (Input to output)
5.5 Temperature Regulation: ±2.0%/ºC (±.005%/ ºC max; over operating temp range)
5.6 Hold-up Time: 200mSecs
6.1 Over Current Limit: 115 to 130% Auto-Recovery after removal of overload condition.
6.2 Over Voltage Protection: 108 to 125% of nominal output voltage. Unit latched, recycle AC input to reset.
6.3 Short Circuit: Auto-Recovery after short circuit condition is removed.
6.4 Over Temperature Protection: The power supply is protected for over temperature conditions with thermal shutdown. Auto-Recovery when temperature returns to normal.
7.1 Operating Temperature: -40º to 85º C (Baseplate temperature)
7.2 Storage Temperature: -50º to 100º C
7.3 Operating Humidity: 5% to 90% RH, Non-condensing
7.4 Storage Humidity: 5% to 95% RH, Non-condensing
7.5 Operating Altitude: Sea-level to 10,000ft. Non-Operating: above 10,000ft.
7.6 Shock & Vibration: MIL-STD-810F
7.7 Conducted EMI: MI-STD-461C/E/F
8.1 Conduction Cooling: Baseplate temperature not to exceed 85°C for full rated output.
9.1 Remote On/Off: TBD
9.2 Remote Sense: N/A
9.3 Output Voltage Adjust Control: N/A
10.1 Outline Dimensions: 6.0" x 10.0" x 1.5" (W x L x H) excluding connectors, no heatsink.
10.2 Enclosure: Metal chassis, aluminum baseplate and enclosure, non-finish
10.3 Weight: 3 lbs/1360 grams (Estimate)
10.4 AC Input Connector: Glenair 805-003-07-MT-12-4SA or TBD
10.5 DC Output Connector: Glenair 805-003-07-MT-12-4SA or TBD
12.1 Product specifications subject to change without notice. All rights reserved
12.2 The information and specifications contained in this document are preliminary specifications for a proposed airborne power supply product.