400-W Power Module Demonstrates Active PFC
Targeting military, aerospace, and industrial applications, Martek Power’s MW400S 400-W AC/DC power module includes active AC PFC and a built-in EMI filter. The 6.5” × 8” × 1” converter accommodates a universal single phase input from 90 VAC to 265 VAC at from 47 Hz to 440 Hz. Line harmonics meet MIL-STD-1399 for 60 Hz or 400 Hz, and conducted EMI meets CE101 and CE102 of MIL-STD-461 without requiring any external filtering. The device offers isolated outputs of 2 VDC, 3.3 VDC, 5 VDC, 12 VDC, 15 VDC, or 28VDC; a power factor of 0.99, and 82% efficiency at full load. The unit exhibits remote turn on/off (TTL control), output voltage trim, overvoltage protection, overcurrent protection, AC/DC Good TTL signal, fixed frequency conversion from 500 kHz to 550 kHz with synchronization input; and operating temperature from -40°C to 100°C.