Power management and distribution - PCDUs
MEGA® PCDU
EVO PCDU
MVPCU
GHPS
MEGA® PCDU
Power Conditioning and Distribution Unit (PCDU) is part of the Main Electronics for Global Access (MEGA®) product line providing electrical power capabilities for LEO constellations.
Based on flight-proven reliable automotive-grade parts, it features a modular design in a competitive mass and volume envelope.
Features
Main functions:
- Modular and scalable PCDU
- Unregulated main power bus
- Isolated and non-isolated low power buses
- DET solar array energy management
- Distribution capabilities adaptable according to mission needs
Key parameters:
- Up to 4 kW @ 28 V
- 98% efficiency
- Up to 42 LCLs
- Up to 5N+5R Deployment actuators
- 2 low power regulated buses
- Up to 4 Fuses
- Up to 6 stepper motor drivers
- CAN bus communications interface
Image: MEGA® family Power Conditioning and Distribution Unit
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Main Electronics for Global Access
Main Electronics
EVO PCDU
EVO is a state-of-the-art PCDU product based on a modular concept.
It is the solution of choice for applications in a wide range of Earth observation, science and interplanetary missions, offering in one equipment both major functionalities of an Electrical Power Subsystem:
- The Power Conditioning part (PCU) in charge of the spacecraft energy sources management
- The Power Distribution part (PDU), covering the switched and protected power distribution towards the users
Features
Main functions:
- Modular and scalable PCDU
- Provides DET or MPPT solar array energy management concepts
- Built-in battery switch
- Supports unregulated and fully regulated primary bus rail architectures
- Distribution capabilities adaptable according to mission needs
Key parameters:
- Up to 4 kW @ 28 V
- 96% efficiency
- Up to 144 LCLs
- Up to 48N+48R Deployment actuators
- Secondary regulated 100 V bus capability
- MIL-STD-1553 communication bus
- 16 battery EoC and ICH programmable levels
- Up to 256 Heater switches
Image: Power Control and Distribution Unit - Amazonia
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MVPCU
Flightworthy COTS Multi-Voltage Power Conditioning Unit.
Designed for Geostationary Earth Orbit, scientific and telecom missions, providing unprecedented performances thanks to the use of state-of-the art technologies, such as GaN and digital control.
In particular, it offers high power density and high efficiency.
Features
Main functions:
- Modular and scalable PCU
- GaN-based DET solar array energy management
- One fully regulated digital controlled main bus and two secondary power buses
- Built-in battery switch
Key parameters:
- From 2 kW to 26 kW
- 96% efficiency
- Main power bus: 100 V
- Secondary power bus: from 10 V to 90 V
- MIL-STD-1553B communication bus
- 256 ICH programmable levels
Image: Multi-Voltage Power Conditioning Unit - OneSat Platform
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GHPS
Generic High-Power System (GHPS) is the Airbus Crisa’s standard electronic product for exploration and crewed space missions.
It provides scalable high-power control and distribution solutions for 120V electrical power subsystems compliant with NASA/ESA requirements, mainly for Low Earth, Moon and interplanetary missions, as well as landing and logistics vehicles, Moon and Mars surface permanent bases and Spaceplanes.
Features
Main functions:
- Modular and scalable in-orbit maintainable crewed missions solution
- Efficient, isolated and bidirectional power conversion
- Digitally controlled power conversion
- Compatible with complex grounding schemes
- Autonomous or on-board computer slave power rails regulation modes
Key parameters:
- Up to 32 kW @ 120 V
- 98% efficiency
- 120 V primary power bus management
- 120 V and 28 V secondary power bus management
- 210 EoC and 70 ICH programmable levels
- 100Base-T TTE communications interface
Image: Generic High-Power System for crewed Exploration Missions
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Our datasheets
Further details
MEGA PCDU Datasheet
EVO PCDU Datasheet
MVPCU Datasheet
GHPS Datasheet
- Further details