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WL Series
100 - 420 Watt Single Output Power Supply
WWL Series
48 - 60 Watt Dual Output Power Supply
Martek Power Abbott
designs and manufactures military grade AC/DC power supplies, DC/DC converters, and DC/AC
pure sine wave inverters. Power conversion offering includes standard, semi-custom and
full-custom configurations. Our COTS apporach provides the benefits of proven technologies
at lower cost. COTS military power supplies dc-dc power converters dc/dc power supply
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| Features |
| 3-phase, input linear power supply;
single and dual output. |
| Low EMI |
| Meets MIL-STD-461A. |
| Specifications |
| Input: |
105-125 Vac, 380-420 Hz,
three phase delta. Wye configurations available (option-3). |
| Output
(nominal): |
5, 6, 12, 15, 24, 28 Vdc
(single output). ±12, ±15 Vdc (dual output). |
| Efficiency: |
30% minimum, 50% typical. |
| Line
Regulation: |
Within 0.1% or 20 mV
(whichever is greater) for change from low line to high line with load constant. |
| Load
Regulation: |
Within 0.1% or 20 mV
(whichever is greater) for change from no load to full load with line constant. |
| Auxiliary
Output Tracking: |
WWL Models. The negative
output will track the positive output within 1% or 100 mV (whichever is greater) for all
rated conditions. |
| Pard (Noise and
Ripple): |
0.02% or 5 mV rms (whichever
is greater), 25 mV P-P at 25 MHz bandwidth. |
| Isolation
Voltage: |
750 Vdc, input to output;
750 Vdc, input to case; 200 Vdc, output to case. |
| Insulation
Resistance: |
50 Mohms between input and
output, input and case, output and case, when measured at 50 Vdc. |
| Polarity: |
Inputs and outputs are
isolated. Either positive or negative side of output may be grounded. |
| Temperature
Range: |
Operating: -55°C to +85°C
maximum, at center of the baseplate (-55°C to +100°C at 80% rated power). Storage:
-65°C to +125°C, ambient. |
| Temperature
Coefficient: |
0.03% / °C maximum. |
| Input Transient
Protection: |
Unit will withstand 180 Vac
for 0.1 second, in accordance with MIL-STD-704. |
| Load Transient
Response: |
Output voltage returns to
regulation limits within 100 microsecond for auxiliary outputs after 50% change in load
current for units supplying more than 10 A. |
| Load Transient
Overshoot: |
0.2% or 30 mV (whichever is
greater) from nominal voltage set point. |
| Short Circuit
Protection: |
Completely protected against
a short circuit of any duration. Output automatically restores to normal when overload is
removed. |
| Remote Sensing: |
Regulator monitors voltage
directly at the load using extra "sensing" leads and compensates for a dc
voltage drop up to 0.5 volt in the load leads (single output models only). |
| EMI: |
Units were designed and
built to minimize EMI/EMC emissions, and comply with the requirements of MIL-STD-461A by
virtue of their topology, construction and enclosure. |
| Reliability: |
MTBF is calculated per
MIL-HDBK-217D at 50°C baseplate temperature with maximum operating input voltage and
maximum rated output power. The MTBF at ground benign environment is 164,406 hours. |
| Environment: |
Encapsulated and
hermetically sealed to meet the environmental requirements of MIL-STD-810C, including
altitude (to 1.3 inches of Hg), acceleration, vibration, shock and temperature altitude
cycling. |
| Connectors: |
Standard unit is provided
with an input solder pin header and an output "hermetic seal" stud-type
connector. |
| Weight (Lbs.): |
2.4 - 7.7 |
| Size (inches): |
See Selection
Chart |
| Model Numbering System |
| Model Series |
Nominal Output
Voltage |
Header Type |
Options |
|
Maximum Output
Current |
| WL* |
5.3 |
D |
L |
- |
20 |
| *WL is for
single output, WWL is for dual output. |
| SELECTION CHART for
listing of popular models, case sizes, pin outs and input currents. |
| Options |
| A Option: |
Special Connectors. A
military-type hermetically sealed connector is provided in place of our standard input
header. To order, replace the "D" in the model with "A". |
| E Option: |
Severe Shock, Acceleration
and Vibration. Enables all units to withstand 60 g's shock, 50 g's acceleration and 30g's
vibration. To order, add "E" after "D" in the model number. |
| H Option: |
Recentered Input Voltage.
Changes input specifications to: 208 to 230 Vac. Some derating may be required. To
order, add an "H" after the "D" in the model number and indicate new
input voltage range in parentheses after the model number. |
| L Option: |
Remote Turn On/Off. Provides
isolated terminals to turn output on/off with TTL logic signal. To order, add
"L" after "D" in the model number. |
| R Option: |
An adjustment potentiometer
can be remotely located to adjust the output voltage. To order, add "R" after
the "D" in the model number. |
| -ER Option: |
Provides increased
reliability by using higher levels of military grade components. To order, add
"-ER" after the model number. |
| -1 Option: |
Internal Overvoltage
Protection. Provides a crowbar internal OVP. Input must be recycled to restore output. May
inccrease case size. To order, add "-1" to the end of the model number. |
| -3 Option: |
WYE Input. Changes input
specifications from 3-phase Delta to 3-phase, 4-wire WYE. To order, add "-3" to
the end of the model number. |
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