Electrical power systems (EPS) > Electrical Power System 2.0 (power 660 W)
Key highlights
The Kongsberg anoAvionics Electrical Power System (EPS) manages power collection and distribution in a satellite, with an integrated Battery Management System (BMS). All subsystem and payload power supply is controlled via the EPS, and all of the output channels can be switched on and off autonomously or by ground command. The EPS stores generated energy in onboard Lithium-Ion batteries. To ensure a safe battery working environment, the EPS is integrated with battery heaters and battery balancing functions.
NanoAvionics First and Second Generation Electrical Power Systems (EPS 1.0 and EPS 2.0) are designed to meet nano- and microsatellite market demand, requiring high power in a small size.
Main specifications:
- MPPT converter efficiency: up to 97%
- Output converter efficiency: up to 97%
- Regulated voltage rails: 3.3 V; 5 V; 12 V; 28 V
- Unregulated voltage rails:Vbat, 4S: 12-16 V
- Vbat, 8S: 24-32.2 V
Inputs:
- Maximum battery input voltage: 16.6 V (4S) or 33.2 V (8S)
- Solar panel voltage range: 6 – 42 V
- Max input power per MPPT converter: 50 W
Outputs:
- 20 output channels per PDU board
- Up to 4 PDU boards can be added to EPS
- Max output power per single MTTP converter: 50 W
Key features
- Four MPPT converters with 12 solar panel input channels per PCU board (Up to 4 PCU boards can be added)
- 20 output channels per PDU board (Up to 4 PDU boards can be added)
- High output power (up to 660 W)
- Integrated ideal diodes for each solar panel input
- Software and hardware overcurrent protection of each power output
- Each power output supports a configurable slew rate to handle the inrush current of loads
- Battery temperature management and heater control
- Battery state supervision: undervoltage lockout as well as overcurrent protection by the main switch
- Maximum current drawn from battery (overcurrent limit switch): 20 A
- Integrated battery charger circuit for easy integration operations
- Supports CAN communication interface with CSP protocol, UART/RS422
- EPS configuration through USB interface or CAN
- Always-ON Real Time Clock
- IPC-A-610 Class 3 assembly
Export control
Export Control Status: ITAR-free
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Last updated: 2025-07-23
Technical specs
Regulated voltage rails: 3.3 V; 5 V; 12 V; 28 V
Output converter efficiency: up to 97%
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