HIGHLIGHTS

• VERY HIGH EFFICIENCY, GREATER THAN 80% TOTAL. INCLUDES EMI FILTER, POWER FACTOR CORRECTION MODULE AND DC TO DC CONVERTER.
• MIL-STD-704, REV – THROUGH F COMPLIANT
• MIL-STD-1399, REV C COMPLIANT
• MIL-STD-461 (CE101/CE102), REV F COMPLIANT
• UNIVERSAL SOLUTION FOR SINGLE PHASE OR THREE PHASE INPUTS (47-440HZ); ALSO 270VDC INPUT.
• INRUSH CURRENT PROTECTION PEAK VALUE WITHIN STEADY STATE LIMITS
• OUTPUT OVER VOLTAGE PROTECTION
• OUTPUT OVER CURRENT PROTECTION
• PRIMARY / SECONDARY ISOLATION – 2000VDC
• WORKS IN HARSH MILITARY ENVIRONMENTS. (MIL-STD-810 VIBRATION, SHOCK AND TEMPERATURE OF -55°C TO +100°C OR -40° C TO +100°C).
• STANDARD COTS SOLUTION TO YOUR POWER NEEDS.
• NEW MECHANICAL PACKAGING THAT COMPLEMENTS STATE OF THE ART ELECTRICAL DESIGN. (NO PINS OUT THE TOP).
• NO EXTRA PARTS REQUIRED! JUST BOLT TO A HEAT SINK AND GO!
• EASY TO PARALLEL FOR MORE POWER!

The series was born from the fact that the multiple output, low-voltage power supply business is changing. Today, high-speed microprocessor circuits require low voltage outputs (0.9V, 1.8V, 2.5V and 3.3V) with tight regulation and fast transient response right at the load. These requirements cannot be provided by brick modules located a distance away from the load. The industry has addressed this problem by use of “on board” multiphase buck converters providing power right at the point of load (P.O.L. converters). The above addresses the concerns of the microprocessor circuit designer, but where does the power to the multiphase buck converters come from? The answer is the Power System.

Simply put, the Power System consists of four modules which provide an interface from the unwieldy military MIL-STD-704 & 1399 power busses with their stringent EMI and transient requirements to the benign buss voltages required by customer’s multiphase buck converters (regulated 28V & regulated 12V). The Power System consists of four modules, namely:

• A MIL-STD-461 EMI Filter with Part Number CAE650 (see package below)
• A Power Factor Correction Module with Part Number CAP600 (see package below)
• A Bulk Storage/Hold-Up Capacitor Bank with Part Number CAC600 (see package below)
• An Isolated 500 Watt DC to DC Bridge Converter with Part Number CAB500-28 (see package below).

The Power System can also power down stream COTS DC/DC converters from all manufacturers including ATC Power Systems, Inc. as it provides outputs of 12V and 28V at 500 watts. ATC Power Systems offers several modules including the PowerMil Series, the HalfPint Series, and the PowerSlim Series. Please see our standard product pages for more details.

Features of the Power System include its ability to start up negative impedance DC-to-DC Converters, even at inputs as low as 15 Vdc. This is made possible by the ’s unique multi-knee current limit circuit which provides higher output load current capability at reduced output voltages. Other features include an output bias source for customer’s monitoring and control circuits; over-voltage protection, converter shutdown (with the bias output still available), temperature shutdown, paralleling and current share capability.

Several Power Systems can be seriesed and paralleled to provide 12V, 24V, 28V, or 48V systems up to several kilowatts of output power.
We invite you to be creative and see what the Power System can do for your military power needs.

 

POWER FOR P.O.L'S AND ALL TYPES OF DC/DC CONVERTERS

SECTION 1

MIL-STD-461
EMI FILTER MODULE:

• 1 PHASE INPUT (47-440HZ) (270VDC)
• 3 PHASE INPUT (47-440HZ)
• MIL-STD-1399 1000VDC TRANSIENT PROTECTION
• MIL-STD-461F (CE101 &CE102) COMPLIANT.
• -55°C TO +100°C BASEPLATE OPERATION.
• AVAILABLE WITH CONNECTOR OR FLYING LEADS ON INPUTS OR OUTPUTS.
• OTHER SIZES AND FORM FACTORS AVAILABLE. (CONSULT FACTORY.)
• APROX. SIZE: 5.0L X 1.9W X 1.5H

 

PART NUMBER CAE650

 

SECTION 2

BULK CAPACITOR
MODULE:

• HOLD UP TIME
• -55°C TO +100°C BASEPLATE OPERATION OR -40° C TO +100°C BASEPLATE OPERATION
• AVAILABLE WITH CONNECTOR OR FLYING LEADS ON INPUTS OR OUTPUTS.
• OTHER SIZES AND FORM FACTORS AVAILABLE. (CONSULT FACTORY.)
• APROX. SIZE: 3.7L X 1.9W X 1.5H

 

PART NUMBER CAC600

SECTION 3

POWER FACTOR
CORRECTION MODULE:

• ON/OFF CONTROL
• INRUSH LIMITED TO STEADY STATE LIMITS.
• 600 WATTS OUT
• OPERATION DOWN TO 85VAC
• MEETS MIL-STD-1399- (3% HARMONIC DISTORTION).
• MEETS MIL-STD-1399 (1000V SPIKE PROTECTION)
• SIDE SOLDER CONNECTIONS (NO PINS OUT THE TOP)
• 0.090’’ THICK BASEPLATE TO CONFORM TO 6-32 HARDWARE HOLD DOWN CONFIGURATION.
• HARD POTTED FOR HARSH ENVIRONMENTS
• AVAILABLE WITH CONNECTOR OR FLYING LEADS ON INPUTS OR OUTPUTS.
• DESIGNED FOR CONDUCTION, FORCED AIR, LIQUID COOLING, CONVECTION COOLING, BASE PLATE TEMPERATURE RANGE -55°C TO +100°C.
• BUILT IN RF SHIELDING.
• APROX. SIZE: 4.8L X 2.7W X .5H

PART NUMBER CAP600

SECTION 4

BRIDGE CONVERTER
MODULE:

• PROVIDES 2000V INPUT / OUTPUT ISOLATION
• 500 WATTS OF OUTPUT POWER
• AVAILABLE IN 12V OUT OR 28V OUT
• OUTPUT START UP CAPABILITY DOWN TO 15VDC (MULTI LEAVE CURRENT LIMIT)
• SHORT CIRCUIT PROTECTION
• OVER VOLTAGE PROTECTION
• SYNC FET, HIGH EFFICIENCY TOPOLOGY
• BIAS OUTPUT
• CURRENT SHARE OUTPUT
• MAX HEIGHT 0.530’’ (NO PINS OUT TOP)
• DESIGNED FOR CONDUCTION, FORCED AIR, LIQUID COOLING, CONVECTION COOLING, BASE PLATE TEMPERATURE RANGE -55°C TO +100°C
• BUILT IN RF SHIELDING.
• APROX. SIZE: 5.6L X 2.7W X .5H

PART NUMBER CAB500-XX

Frequently Asked Questions

I need 500 Watts of 12 Volt Bus power for downstream POL converters.
    No problem, use the Power System.
I need 500 Watts of 28 Volt Bus power to power downstream DC-to-DC converters.
    No problem, use the Power System.
I need the above, except 1500 Watts from a three phase input.
    No problem, use the Power System.
I need to operate within a baseplate temperature of -55°C and 100°C.
    No problem, use the Power System.
I need to meet the harmonic distortion / power factor requirements of MIL-STD-1399.
    No problem, use the Power System.
I need to have CE101 and CE102 EMI compliance.
    No problem, use the Power System.
I need to have high efficiency with power factor correction.
    No problem, use the Power System.
I want a non-NRE, COTS solution.
    No problem, use the Power System.

NOTE: THE KEY TO THE IS THE VERY EFFICIENT 28V OUT OR 12V OUT 500 WATT FULL BRIDGE CONVERTER WHICH YIELDS EFFICIENCIES OF GREATER THAN 92% WHILE MOST OTHERS OFFER EFFICIENCIES BETWEEN 83% - 88%. ALSO, THIS MODULE HAS A UNIQUE CURRENT LIMITING SCHEME WHICH ALLOWS STARTING OF NEGATIVE INPUT IMPEDANCE DC TO DC CONVERTERS AT FULL POWER WITH STARTING INPUT VOLTAGES AS LOW AS 15 VOLTS. THIS IS A KEY FEATURE NECESSARY FOR BUSS CONVERTERS.

 

Not only does the Series provide the ideal interface between the military power busses and the customer’s input buss; but, it does it with extreme power efficiency. Consider the following typical application. A 3.3 Volt at 50 Amp output is needed from a single phase MIL-STD-1399 input. Using standard industry bricks and circuitry, an EMI filter would be mated with a 3.3V output DC-to-DC converter for a 99% x 75% = 74% efficient system. The same system requirements configured with the power system and a cascaded multiphase buck converter would create a 99% x 92% x 95% = 80% efficient system, at 17 less Watts of heat dissipated!

 

EFFICIENCY COMPARISON

EXAMPLE OF 3 PHASE CONFIGURATION

EXAMPLE OF MULTIPLE OUTPUT CONFIGURATIONS

PACKAGING OPTIONS