BOXBOROUGH, Mass. – SynQor Inc. in Boxborough, Mass., is introducing the MPFC-440-3PH-400-LE military-grade three-phase power factor correction module for shipboard electronics applications. The MPFC-440-3PH-400-LE power module meets MIL-STD-461[C-F], MIL-STD-1399, and MIL-STD-810G.
MIL-STD 1399-300B requires all the phase currents to be balanced to within plus-or-minus 5 percent for ships and plus-or-minus 3 percent for submarines.
The 440 root-mean-square voltage (Vrms) MPFC draws balanced input currents within plus-or-minus 2 percent from a source and delivers a non-isolated 5-kilowatt output at 400 volts DC.
The unit also has a slight lagging active power factor correction feature such that when it is working with the MACF-440-3PH-UNV-MP AC line filter, the system can draw a nearly perfect sinusoidal current at a near unity power factor from the source (PF>0.99) even at loads as low as 500 Watts and an input frequency of 60 Hz.
The MPFC has total harmonic distortion of less than 2 percent at output power levels above 1.6 kilowatts. The power conversion efficiency of this compact, military grade module is as high as 97 percent.
The 440 Vrms delta input connected power factor correction (PFC) can operate at frequencies as low as 47 Hz and as high as 800 Hz.
The three-phase PFC module is for military naval applications but also is for ground systems. This encased military-grade component is designed to meet shock, vibration, and environmental conditions per MIL-STD-810G. In addition, it can deliver full power baseplate temperatures from -55 to 100 degrees Celsius.
The PFC includes an RS-232 serial interface, an output PFC_Enable control pin, AC_GOOD, DC_GOOD, START_SYNC, and Battle-Short pins. Detailed statistics of the converter can be accessed through a 9,600-baud serial interface.
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The output of the module may also be enabled or disabled through the PFC_Enable pin. The module provides the AC_GOOD and DC_GOOD control signals to enable designers to evaluate the status of the unit quickly.
As many as 10 units can be paralleled for higher power by interconnecting each of the output rails and the START_SYNC signal. The START_SYNC signal ensures that all units in a parallel arrangement start in a synchronized manner, thereby, enabling them to power loads that exceed the maximum rating of one unit.
The 'Battle Short' pin allows users to override potential shutdowns due to an over-temperature or input phase drop event. For more information contact SynQor online at www.synqor.com.
