Services Projects Products Clients
Power Electronics — Space & Defense

HARDWARE
ENGINEERED
FOR THE EDGE

Power, Step by Step

POWCOMA designs high-reliability power electronics hardware for the most demanding environments: space, defense, and safety-critical embedded systems. We work with satellite integrators and space agencies to develop customized systems that meet complex requirements for constrained environments. Our work covers system performance optimization, design justification, and comprehensive testing and validation. We are able to design, assemble, and test complete systems at our facilities located in Marseille and Paris (France).

Our Services Get in Touch
MIL DO-254
ECSS 20-20-C
Specification compliant

What we
design

From concept to qualification, we support your hardware projects in the most demanding sectors with deep expertise in power electronics. Our expertise in digital modeling of physical phenomena (electrical, magnetic, thermal) combined with optimization tools enables us to offer high-performance, compact solutions. Accurate predictions combined with advanced characterization will save you time during the qualification phase. The documentation associated with all these phases is at the heart of our expertise. We rely on the latest space standards to justify all project stage.

01 —
PCB Design
High-density PCB design for constrained environments: high voltage, high current, military-grade EMI compliance and radiation-tolerant layouts.
HDIHV/HCEMI/EMCMulti-layer
02 —
Power Electronics
Development of DC/DC converters, power supplies and drivers for space and defense applications, compliant with MIL-STD and ECSS standards.
DC/DCMIL-STDECSSRad-hard
03 —
Simulation & Validation
SPICE, thermal and EMC simulations to anticipate failures before prototyping, in line with space and military qualification standards.
SPICEThermalEMCDO-254
04 —
System Integration
Architecture and integration of complete electronic subsystems — from the power bus to communication interfaces — in qualified enclosures.
SpaceWireMIL-1553CANFPGA
05 —
Qualification & Certification
Support for qualification of space (ECSS) and defense (DEF STAN, MIL-DTL) programs including vibration, thermal vacuum, and radiation testing.
ECSSVibrationThermo-vacTID/SEE
06 —
Technical Advisory
Independent design reviews, risk analysis and technical consulting for your teams on power electronics challenges in mission-critical environments.
Design ReviewFMECAFTA

Our Projects

Our Products

Two dedicated power conversion chains engineered for space and defense environments — each optimized for specific power ranges, form factors, and bus architectures.

Chain 01 — High Power
High-Power Converter

A 200–600W power chain designed for demanding applications requiring multiple regulated outputs. The architecture combines an FSBB pre-regulator stage and an LLC resonant converter for high efficiency across a wide 21–37V input range, delivering three independent output rails.

21-37V FILTERS FSBB LLC Boost 28V / 1A Buck 5V / 5A 12V / 12.5A // 200–600W HIGH-POWER CHAIN — INPUT: 21–37V DC
High-power converter PCB
FILTERS
FSBB
LLC
Boost / Buck
Chain 02 — Unregulated LLC
Compact Unregulated LLC Converter

A highly compact and efficient power chain for 21–37V input buses. The LLC converter operates as a fixed-ratio DC/DC transformer — no active regulation in the main stage — which dramatically reduces component count and switching losses. Output regulation is handled by Point-of-Load (POL) converters, enabling distributed power architectures with maximum flexibility and efficiency.

21-37V FILTER LLC FIXED RATIO Boost POL 28V Buck POL 5V // UNREGULATED LLC — FIXED RATIO — POL REGULATION AT OUTPUT — HIGH EFFICIENCY
Unregulated LLC converter PCB
FILTER
LLC (Fixed Ratio)
Boost / Buck + POL
Chain 03 — Wide Input
Wide-Input Multi-Bus Converter

A 20–100W power chain engineered for maximum bus compatibility. With a 21–120V input range, this architecture is compatible with all existing satellite power buses — from 28V LEO platforms to 100V GEO buses — without hardware modification. A galvanically isolated Flyback converter followed by a high-current VRM delivers a stable 1V/50A output for processor and FPGA cores.

21-120V ALL BUSES FILTERS Flyback ISOLATED 5V VRM 1V / 50A COMPATIBLE: 28V LEO · 50V · 70V · 100V GEO · MIL 28V · ALL EXISTING SATELLITE BUSES // 20–100W WIDE-INPUT CHAIN — GALVANIC ISOLATION — INPUT: 21–120V DC
Wide-input Flyback converter PCB
FILTERS
Flyback (Isolated)
VRM

Our Clients

Working alongside the world's leading space and defense organizations.

Let's build
something great.

A space program, a defense system, an out-of-spec environmental constraint? Every challenge has a POWCOMA solution.

📍 650 chemin de l'aumone vieille
13400 Aubagne, France
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