The MCOTS-C-28V-12-HY-N-M-F from SynQor is a Military COTS Half-Brick DC-DC Converter that converts an input voltage of 9 - 40 V to an output voltage of 12 V. It provides an output current of 42 A and has an efficiency of 95%. This converter has been designed to comply with a wide range of military standards such as MIL-HDBK-704 (A-F), MIL-STD-1275 (B, D), and DEF-STAN 61-5 (Part 6/5 or 6). It uses a two-stage power conversion topology where the first stage maintains constant output voltage over variations in line, load, and temperature while the second stage includes a transformer that ensures proper input-to-output isolation and voltage step-down functions. This DC-DC converter switches at a fixed frequency on both the first and second-stage predictable electromagnetic interference (EMI) performance. It is housed in a ruggedized package that ensures survivability in demanding environments.
This military-grade converter integrates input under voltage lockout (UVLO), output current limit, output short circuit protection (SCP), active back bias limit, auto recovery output over-voltage protection (OVP), and thermal shutdown to prevent false triggers or over-current-related damages. It also offers external control options such as on/off control referenced to input return, remote sense for output voltage, and active current sharing for paralleling operations. The converter is available in a module that measures 63.1 x 60.6 x 13.0 mm.