200 Watts Single Output Airborne Power Supply
1 � Scope
This preliminary specification outlines the electrical and mechanical characteristics for a 200 watt, single output, military grade, ac to dc power supply designed for single phase, 400Hz input power to operate under harsh environmental conditions for airborne military and commercial applications.
2 � Input
2.1 Input Voltage Range: 95 – 138VAC (115Vav nominal input)
2.2 Frequency Range: 40/50/400Hz (47-440Hz)
2.3 Phase: Single phase,
2.4: Typical Input Current: > 2A per phase 115Vac input, full output
2.5: Power Factor Correction: 0.95 min @ 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)
2.8: Meets DO-160
3 � DC Output Characteristics
3.1 Output Power: 200W
3.2 Output Voltage: 24V dc
3.3 Output Current: 24V @ 8.3A (max continuous at nominal input)
3.4 Line Regulation: ±1.0% Typical
3.5 Load Regulation: ±1.0% Typical (No load to full load, nominal input)
- Output Ripple: 1% Typical (pk-pk, nominal input, full load, 20MHz bandwidth)
3.7 Set Point Accuracy: ± 1.0% of Output Voltage (Nominal input; full load; 25°C)
3.8 Transient Response: Output voltage returns to within nominal output voltage with in 1500uSecs for a 50 to 75% load change.
3.9 Overshoot: Turn-on and turn-off overshoot should not exceed 5% over nominal voltage.
3.9.1 Hold-Up: 200 m/Sec
4 � DC Output Characteristics
4.1 Switching Frequency: 360KHz Fixed
4.2 Efficiency: 87% Typical (Measuring at 115Vac input and full load)
4.2 Turn On Delay: 250 to 500mS (To nominal output voltage)
4.3 Isolation Voltage:
Input to Output: 2000Vrms
Input to Chassis: 1000Vrms
Output to Chassis: 1000Vrms
4.4 Isolation Resistance: 100Mohms (Input to output)
4.5 Temperature Regulation: ±2.0%/ºC (±.005%/ ºC max; over operating temp range)
5 � Protection
5.2 Over Current Limit: 115 to 130% Auto-Recovery after removal of overload condition.
5.5 Over Voltage Protection: 108 to 125% of nominal output voltage. Unit latched, recycle AC input to reset.
5.3 Short Circuit: Auto-Recovery after short circuit condition is removed.
5.4 Over Temperature Protection:The power supply is protected for over temperature conditions with thermal shutdown. Auto-Recovery when temperature returns to normal.
6 � Environmental
6.1 Operating Temperature: -40º to 75º C (Baseplate temperature)
6.2 Storage Temperature: -55º to 100º C
6.3 Operating Humidity: 5% to 90% RH, Non-condensing
6.4 Storage Humidity: 5% to 95% RH, Non-condensing
6.5 Operating Altitude: Sea-level to 30,000ft. Non-Operating: above 30,000ft.
6.6 Shock & Vibration: MIL-STD-810F
6.7 Conducted EMI: MI-STD-461C/E/F
7 � Cooling
7.1 Conduction Cooling: Baseplate temperature not to exceed 85°C to maintain full rated output.
8 � Controls/Signals/Alarms
8.1 Remote On/Off: N/A
8.2 Output Voltage Adjust Control: N/A
9 � Mechanical
9.1 Outline Dimensions: 4.5” x 7.5” x 1.50” (W x L x H) excluding connectors, no heatsink
9.2 Enclosure: Metal Chassis, Aluminum baseplate and enclosure, non-finish
9.3 Weight: 3 lbs./1360.8 grams (Estimate)
9.4 AC Input Connector: Glenair 805-003-07-MT-12-4SA or TBD
9.5 DC Output Connector: Glenair 805-003-07-MT-12-4SA or TBD
10 � Outline Drawing
11 � Notes
11.1 Product specifications subject to change without notice. All rights reserved
11.2 The information and specifications contained in this document are preliminary specifications for a proposed 150 watt, 400Hz, Single Phase, airborne power supply product.
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