Mil-Spec Laptop Power Adaptor

Military and aerospace users of the Getac X500 server can now power their systems from a vehicle or aircraft power system using PCG’s 150W DC/DC power adapter. The adapter can also support high performance laptops like the Alienware 17 and the Asus ROG and other high performance gaming laptops.

The PCG-150-MIL 150-watt adapter accepts DC inputs from 20-30VDC and is optimized for 24VDC and 28VDC military vehicle and aircraft power systems. It has a nominal output of 19VDC +/- 5% for the Getac X500 server but can be delivered with a 16V, 18V or 24V output on special order.

Key features:

• High Input Voltage Disconnect
• Output Short Circuit Protection
• Output Overcurrent Protection
• Internal Over Temperature Protection
• Potted for environmental protection
• Metal end plates with mounting feet
• MTBF greater than 25,000 hours

Certifications:

• MIL-STD-810G
• MIL-STD-461F
• MIL-STD-1275D
• MIL-STD-1686C

Power Quality

The adapter is compliant with the requirements of MIL-STD-1275D with the exception of operating through the starting disturbances described in section 3.1.6 of MIL-STD-1275D however, the adapter withstands exposure to these starting disturbances without damage.

150-Watt DC-DC Adapter Environmental Specifications

Operating Temperature

The 150-watt DC/DC adapter will operate to full performance within the temperature range of -40°C to +55°C., including internally generated sources of heat as well as the ambient temperature. The operating temperature requirements have been verified in accordance with MIL-STD-810G, Method 501.5, Procedure II (high-temperature), and Method 502.5, Procedure II (low-temperature).

Storage Temperature

The server adapter will operable within performance specifications after exposure to ambient temperatures of -40°C to +63°C. These requirements have been verified in accordance with MIL-STD-810G, Method 501.5, Procedure I (high-temperature), and Method 502.5, Procedure I (low-temperature).

Temperature Shock

The MILSPEC 150-watt DC/DC laptop power adapter was operable without performance compromise after exposure to rapid changes in ambient temperatures over the operating range of -40°C to +49°C in accordance with MIL-STD-810G, Method 503.5, Procedure I; Figures 503.5-1, 503.5-2, and 503.5-3 (a total of 4.5 cycles). The transfer time between temperature extremes did not exceed 1 minute.

Operating Vibration

The adapter was fully functional to its performance specifications after being subjected to functional vibration profiles found in military vehicles for eight (8) hours in each axis, in accordance with MIL-STD-810G, Method 514.6, Category 20, Ground Mobile equipment.

Vibration, Logistical

The laptop DC/DC server adapter was fully functional after being subjected to secured cargo vibration induced by air transportation both packaged and unpackaged after being subjected to fixed wing turboprop and turbine aircraft vibration.

Functional Shock

The Equipment met all performance requirements during and after exposure to the functional shock for ground equipment requirements of MIL-STD-810G, Method 516.6, Procedure I, Table 516.6-II, Terminal Peak Sawtooth.

Crash Hazard Shock

The Getac server adapter mounting provisions and structure successfully withstood the transient shock test loads imparted by the crash hazard shock for ground equipment in accordance with MIL-STD-810G, Method 516.6, Procedure V, Table 516.6-I.

Humidity

The 150-watt DC-DC laptop power adapter satisfactorily tolerated the effects of elevated humidity levels without performance degradation during and after exposure to constant 95% humidity with cyclic temperatures over a range of +30°C to +60°C. The exposure was 10x – 24-hour cycles in accordance with MIL-STD-810G, Method 507.5, Procedure II (Aggravated)

Blowing Dust

The DC-DC adapter successfully withstood exposure to dust particle size <150 µm in diameter, density of 10.6 ± 7 gm/m³, with particle velocities of 1.5 to 8.9 m/s from all direction in accordance with MIL-STD-810G, Method 510.5, Procedure I; 90 minutes per side, four sides total.

Exposure to Fluids

The adapter withstands the effects and degradation associated with contamination from exposure to fluids that may be encountered over the service life in accordance with MIL-STD-810G, Method 504.1, Procedure II (Small Systems).

Storage & Air-Transport Altitude

The high power 150-watt Getac X500 laptop adapter meets all of its performance requirements after exposure to un-pressurized transportation altitudes of up to 12,192 meters (40,000 ft) above sea level in accordance with MIL-STD-810G, Method 500.5, Procedure I.

Operation & Air-Carriage Altitude

The MILSPEC DC/DC adapter will operate during exposure to low pressure altitudes up to 4572 meters (15,000 ft) above sea level in accordance with MIL-STD-810G, Method 500.5, Procedure II.

Rapid Decompression

The adapter (non-operating) will withstand altitude changes of 10m/sec. (1969 ft/min.) from 12,192 meters (40,000 ft) above sea level in accordance with MIL-STD-810G, Method 500.5, Procedure III.

Steam and Water Jet Cleaning

When connected as installed in a complete system, the adapter can tolerate cleaning without damage using hot or cold water and steam from a high pressure low-volume cleaning system and commercially available detergents by fine spray, spray-applying a mixture of detergents and water, and rinsing with clean water.

150-Watt DC-DC Adapter Electromagnetic Specifications

Electromagnetic Interference (EMI)

The adapter has been tested to meet MIL-STD-461F requirements as follows:

• CE102 (Conducted Emissions, Power Leads; 10 kHz to 10 MHz)
• RE102 (Radiated Emissions, Electric Field; 2 MHz to 19 GHz)
• CS101 (Conducted Susceptibility, Power Leads; 30 Hz to 150 kHz)
• CS114 (Conducted Susceptibility, Bulk Cable Injections; 10 kHz to 200 MHz)
• CS115 (Conducted Susceptibility, Bulk Cable Injections; Impulse Excitation)
• CS116 (Damped Sinusoidal Transients, Cables and Power Leads; 10 kHz to 100 MHz)
• RS103 (Radiated Susceptibility, Electric Field; 30 MHz to 18 GHz, 50 Volts/meter)

Electrostatic Discharge (ESD)

The server adapter will withstand and continue to operate after exposure to electrostatic discharge events in accordance with MIL-STD-1686C, ESD Class 2 voltage levels applied to the Human Body Model (HBM) test locations.

MIL STD 901D is intended to simulate the conditions that occur on board a ship when it is struck by a torpedo.  The equipment must survive without throwing off pieces that might injure crew-members.

In this test, an X500 that has been modified by ProCustom Group for ship-board use was subjected to multiple shocks.  The modifications included significant additional i/o through mil-spec connectors via an expansion slice and custom interface boards, secured in an adjustable custom mount.

If you listen carefully there is one test where there is a loud clanging sound, followed by the utterence of “uh oh!”  If you look carefully it was just a wrench that had been left on the test fixture by mistake, and turned into a projectile.  No wrenches or personel were seriously injured in the making of this video.

In the slowed-down version below, you can see the significant shock propagation through the mounts, test rig, chassis and computer in slow motion:

 

ProCustom Group specializes in the modification of Getac rugged laptops for use in real world, hostile environments.  These include ship-borne, aircraft, tracked vehicle, flightline and oilfield applications.

www.procustomgroup.com