Electrical Power System and Accessory Boards

The minimum order quantity for this subsystem is 5 pieces.

NanoAvionics Electrical Power System (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 First and Second Generation Electrical Power Systems (EPS 1.0 and EPS 2.0) are designed to meet the newest nano and microsatellite market demand, requiring high power in a small size.

NanoAvionics EPS 1.0 can be paired with additional Accessory Boards further expanding the capabilities of the Electrical Power System:

EPS Output Channel Expander (OCE)
EPS High Voltage Expander (HVE)

Drag to sides

Request information

The minimum order quantity for this subsystem is 5 pieces.

NanoAvionics First and Second Generation Electrical Power Systems (EPS 1.0 and EPS 2.0) are designed to meet the newest nano and microsatellite market demand, requiring high power in a small size.

NanoAvionics EPS 1.0 can be paired with additional Accessory Boards further expanding the capabilities of the Electrical Power System:

EPS Output Channel Expander (OCE)
EPS High Voltage Expander (HVE)

EPS 1.0 (Output Power - 175 W)
Highlight Features:
- Wide range solar panel input voltages
- Four MPPT converters with 8 solar panel input channels
- Four output converters with 18 output channels
- High output power (up to 175 W)
- Integrated ideal diodes
- On-board Lithium-Ion battery pack
- Integrated battery balancing
- On-board battery heaters
- Overcurrent protection, battery undervoltage and overvoltage safety features
- External battery pack provides up to 161 Wh battery capacity
- Current, voltage, and temperature logging
- Software configurable output channel overcurrent protection
- Implemented EPS watchdog system
- Supports CAN communication interface with CSP protocol
- EPS configuration through USB interface
- ISS Kill Switch option
- Always-ON Real Time Clock
- Thermal vacuum tested
- PC/104 standard
- IPC-A-610 Class 3 assembly
Main Specifications:
- MPPT converter efficiency: up to 96 %
- Output converter efficiency: up to 96 %
- Four regulated voltage rails: 3.3 V; 5 V; Configurable 3.3 – 12 V.
- Unregulated voltage rail: 7.0 V – 8.3 V.
Outputs:
- Up to 18 output channels (configurable voltage rail)
- Typical output channel current: 3.13 A (configurable)
- Max 3.3 V Output converter power: 20 W
- Max 5 V Output converter power: 20 W
- Max 3-12 V Output converter power: 20 W
Inputs:
- Four MPPT converters (8 solar panel input channels) with integrated ideal blocking diodes
- Solar panel voltage range: 2.6 – 12 V
- Max input power per MPPT converter: 25 W
Configuration Options:

Power Supply System EPS 2S1P Configuration
Max Unregulated Output Power 25 W
Max Charging Power 10 W”

Power Supply System EPS 2S2P Configuration
Max Unregulated Output Power 50 W
Max Charging Power 20 W”

Power Supply System EPS 2S3P Configuration
Max Unregulated Output Power 75 W
Max Charging Power 30 W”

Power Supply System EPS 2S4P Configuration
Max Unregulated Output Power 100 W
Max Charging Power 40 W”

Power Supply System EPS 2S5P Configuration
Max Unregulated Output Power 125 W
Max Charging Power 50 W”

Power Supply System EPS 2S6P Configuration
Max Unregulated Output Power 150 W
Max Charging Power 60 W”

Power Supply System EPS 2S7P Configuration
Max Unregulated Output Power 175 W
Max Charging Power 70 W”
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 OCE Features:
- Additional 4 DC/DC converters and 8 output channels in total
- Four output converters can be configured to user-defined output voltage (3 – 12 V)
- Current, voltage and temperature logging
- Software configurable output channel overcurrent protection
- PC/104 standard
- IPC-A-610 Class 3 assembly
EPS HVE Features:
- Two independent 100 W DC/DC boost converters
- Two output converters can be configured to user defined output voltage (12 V – 28 V)
- IPC-A-610 Class 3 assembly