Mil-Spec power factor correction modules for AC/DC supplies

Mil-spec power factor correction modules, developed by SynQor for AC/DC power conversion in military, aerospace and commercial applications, are available from Luso Electronics. Both the MPFC-U-390-QP and MPFC-115-270-QP deliver 350W from a quarter brick package (1.5 x 2.4 x 0.5in) while achieving 95% efficiency at full load.

When used with a hold-up capacitor, as well as SynQor’s AC line filter and high efficiency DC/DC converters, each PFC module draws a sinusoidal current with a power factor of more than 0.99 from a single phase AC input. Together, the components are said to provide a complete front end that complies with MIL-STD-704, MIL-STD-1399 and MIL-STD-461.

The PFC modules, developed by SynQor, are said to provide high performance across a wide input voltage range. The MPFC-U-390-QP accepts an input ranging of 85 to 264V rms, providing a 390V DC output. The MPFC-115-270-QP runs from an input ranging from 85 to 180V rms and provides a 270V DC output. Both operate with input frequencies ranging from 47 to 63Hz and 360 to 800Hz.

Supplied in a fully encased and ruggedised package, the PFC modules can operate with baseplate temperatures ranging from -55 to 100°C and are suited to applications that require a low profile solution.