SmallSat Electrical Power System 2.0

Microsatellite electrical power system starting price: € 70,700
Click “See Price & Lead Times” for the full price list.

NanoAvionics Electrical Power System 2.0 (EPS) manages the power collection and distribution in the satellite with an integrated Battery Management System (BMS). All subsystem and payload power supply are 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 EPS 2.0 is designed to meet the newest nano and microsatellite market demand, requiring high power in a small size.

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See Price & Lead Times

Microsatellite electrical power system starting price: € 70,700
Click “See Price & Lead Times” for the full price list.

NanoAvionics EPS 2.0 is designed to meet the newest nano and microsatellite market demand, requiring high power in a small size.

EPS 2.0 (Output Power - 660 W)
Highlight 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
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: 12-16.6 V
  - Vbat, 8S: 24-33.2 V
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
Inputs:
- Maximum battery input voltage: 16.6 V (4S) or 33.2 V (8S)
- Solar panel input voltage: 6 – 42 V
- Max input power per MPPT converter: 50 W
EPS 2.0 4S2P-4S12P Battery Pack Features:
- Minimal Voltage: 12.8 V
- Maximum Voltage: 16.6 V
- Nominal Capacity: 6.5 – 39 Ah
- Nominal Energy Capacity: 100 – 600 Wh
- Maximum Discharging Power: 107.9 – 647.4 W
- Maximum Charging Power: 53.95 – 323.7 W
- Charging Current: 3.25 – 19.5 A
- Maximum Discharge Current: 6.5 – 39 A
- Total Heater Resistor Resistance: 37.5 – 6.3 Ohm
EPS 2.0 8S1P - 8S6P Battery Pack Features:
8S6P battery pack is maximum nominal*
- Minimal Voltage: 25.6 V
- Maximum Voltage: 33.2 V
- Nominal Capacity: 3.25 – 19.5 Ah
- Nominal Energy Capacity: 100 – 600 Wh
- Maximum Discharging Power: 107.9 – 647.4 W
- Maximum Charging Power: 53.95 – 323.7 W
- Charging Current: 1.625 – 9.75 A
- Maximum Discharge Current: 3.25 – 19.5 A
- Total Heater Resistor Resistance: 150 – 25.0 Ohm
*It is possible to have larger battery pack, but requires engineering consultation and configuration.