Power Conditioning and Distribution Units (PCDU)
Airbus Defence and Space
Airbus offers advanced power conditioning and distribution units (PCDUs) optimized for space applications, ensuring reliable power conversion, regulation, and distribution for spacecraft and payload operations. These units, including the PSR 100V MKII and PSR 50V MKII, are designed for high power de
Typed specifications43 values
Discloses 7 of 14 fields engineers filter by in this category (category median 7).
- Mass
- 38 300 g 11.2kW · datasheet p.2 22 000 g 3.7kW
- Total output power
- 750 W per PM step · datasheet p.2 750 W per power module (PM steps), up to 16 PMs | 11 200 W with 16 PMs | 3 700 W with 6 PMs | 3 700 W min · 6 power modules +1
- Conversion efficiency
- 94 % battery discharge · datasheet p.2 96.5 % solar array
- Envelope (L×W×H)
- 448 to 683 x 322 x 205 mm datasheet p.2
- Supply voltage
- 28–47 V battery · datasheet p.2
- Power consumption
- 11 200 W output · datasheet p.2 23 000 W max · max
- Data interface
- MIL-STD-1553 Dialog: MIL STD 1553 Bus · datasheet p.2
- Operating temperature
- -35–70 °C thermal, operation and performance · datasheet p.2
- Design lifetime
- 15 years radiation: 15 years in GEO orbit · datasheet p.2
- Unit type
- power conditioning unit (PCU / BCR) Power Supply Regulator (PSR), also known as Power Conditionin… · datasheet p.1
- Bus and outputs type
- regulated bus Power bus: 50V regulated +/- 0.5V · datasheet p.2
- Unregulated (battery) bus voltage
- 50 V regulated · datasheet p.2
- Regulated output voltages
- 50 V main bus, regulated 50V +/- 0.5V · datasheet p.2
- Solar array inputs
- 5–15 sun regulation: between 5 to 15 GS section · datasheet p.2
- Solar array regulation
- other Sun regulation: between 5 to 15 GS section, 20.2 A max per se… · datasheet p.2
- Random vibration
- 10 g RMS random, in plane · datasheet p.2 16 g RMS random, out of plane
- Flight heritage
- More than 900 years cumulated in-orbit operation, with over 80 units in flight; power conditioning unit for the Eurostar 3000 satellite family (Intelsat, Inmarsat, Eutelsat, SES, Hispasat, Telesat, Direct TV, Echostar, IAI, KARI, JAXA) datasheet p.1 More than 80 units in flight on several platforms in the world
- Satellite class
- GEO telecommunication satellites, GEO Earth Observation satellites · datasheet p.1
- Missions flown
- 80 over 80 units in flight · datasheet p.1
- Quasi-static load
- 10 g in plane random · datasheet p.2 16 g out of plane random | 20 g sine
- Shock qualification
- 600 g in plane, over 1kHz to 10kHz · datasheet p.2 900 g out of plane, over 1kHz to 10kHz
- Max current per output
- 20.2 A max per section · datasheet p.2
- Battery voltage range accepted
- 28 V min · datasheet p.2 47 V max | 28–47 V 28V < V battery < 47V; Li-Ion or NiH2
- Max battery charge current
- 20 A bi batteries configuration · datasheet p.2 40 A max · up to 2 batteries charge up to 40A
- Max solar input current
- 20.2 A max · per section · datasheet p.2
- Housekeeping telemetry
- Analogue TM: 178 internal, 14 external; Bi-level TM: 70 internal, 58 external; battery TM (voltage, current) to the OBC; external current telemetries datasheet p.2
- Redundancy
- internally redundant (cross-strapped) MIL STD 1553B buses coupling nominal & redundant, TM/TC manag… · datasheet p.2
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier9 lines, in the manufacturer's own wording
- Product
- PSR 100 V MKII
- Qualification
- Fully qualified
- Fault tolerance
- Fault tolerant
- Availability
- Off the shelf unit
- Development origin
- AIRBUS Defence and Space for telecom satellites under ESA initiative
- Power handling capacity (PSR 100V MKII)
- up to 23 kW at 100 V
- Flight heritage (PSR 100V MKII)
- Onboard Alphabus, E3000, E3000-NEO and Galileo, selected by major operators and other spacecraft manufacturers
- Flight heritage (PSR 50V)
- More than 80 units in flight on several platforms in the world
- Power range (Centralized power supply DC power solutions for active antennas)
- From 1 kW to more than 10 kW
About
Airbus provides advanced Power Conditioning and Distribution Units (PCDUs) specifically designed and optimized for space applications. These solutions are crucial for ensuring reliable power conversion, regulation, and distribution, which in turn supports the efficient operation of spacecraft and their payloads. The units are characterized by high power density and superior efficiency, capable of handling power levels up to several kilowatts and designed to accommodate a range of input voltages. They are built to withstand the extreme conditions encountered in space, meeting the highest standards for durability and performance.
One key product is the PSR 100V MKII, a fully qualified, fault-tolerant, off-the-shelf unit developed by AIRBUS Defence and Space under an ESA initiative for telecom satellites. It boasts a power handling capacity of up to 23kW at 100V. The PSR 100V MKII has significant flight heritage, being onboard Alphabus, E3000, E3000-NEO, and Galileo platforms, and has been selected by major operators and other spacecraft manufacturers. It builds upon the legacy of the PSR 50V, which has more than 80 units in flight on various platforms worldwide.
Additionally, Airbus offers centralized DC power solutions for active antennas, featuring a modular approach that covers an output power range from 1 kW to more than 10 kW.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.