NANOeps (2nd Generation)
A versatile electrical power system with scalable battery capacity for nano and micro satellites
NANOeps-63w with 63Wh battery pack
NANOeps-95w with 95Wh battery pack
NANOeps-126w with 126Wh battery pack
NANOeps-158w with 158Wh battery pack
The NANOeps with scalable battery pack presents a complete EPS targeted for use on nano and microsatellites. NANOeps integrates all features of Power Control and Distribution Unit and Battery Management Module with integrated battery pack, which makes it one of the most advance EPS systems on the market. The battery pack features an active balancing to provide outstanding life-time and heating systems for the maximal battery cells protection. The NANOeps is fully complaint with up to two NANOamppt units, which support the safest and most accurate solar array energy conversion method using the novel Analog MPPT feature. The NANOeps represents the second generation of SkyLabs’s flight proven equipment for the emerging space market. Its fault tolerance by design provides remarkable reliability and robustness against SEE. Fault tolerance is assured by the SkyLabs’ radiation harness assurance, that is based on a delicate component selection process and their radiation characteristics and flight heritage, latch-up protection by constant current monitoring and several other mitigation techniques. Several intelligent built-in functions enable NANOeps fully autonomous operation, making the power distribution and battery management practically autonomous. NANOeps represents a key subsystem in the NANOsky 2nd generation platform due to its performance enchantments, its multifunctional architecture and various features available.
Features
The NANOeps with build-in PCDU is providing 23 independent power output channels. Three channels are in full redundant configuration for essential on-board equipment. It features 5 dedicated deployment actuator interfaces with 10 TLM deployment interfaces.
It is comprised of two independent modules, one dedicated to battery management and one dedicated to power distribution, both acting as nodes on a redundant CAN bus.
- Battery pack with capacity between 63 Wh up to 158 Wh (up to 18Ah)
- Two charging interfaces, supporting a total charging current of 18A
- Independent heaters and thermal sensor per battery cell
- Independent battery balancer per cell string (up to 5)
- Independent battery protection fuse per cell string (up to 5)
- Separation Switch and Remove Before Flight interfaces
- Radiation hardened by design to increase reliability and robustness
- Constant current monitoring and limiting
- Selective components technology selection with flight heritage
- EDAC/ECC protected memories
- Advance three-level FDIR protection
- Watch-dog timer
- SEE immune non-volatile MRAM memories for TM storage
- Instant boot up at power on
- Comprehensive local subsystem telemetry (currents, voltages, temperatures, etc.)
- Interfaces:
- Redundant CAN interface for TM/TC
- Output channels status debug connector for integration into EGSE
- 23 power output channels (supporting 3.3V, 5V, 12V and 10V unregulated outputs)
- Dedicated monitoring of current and voltage
- Over-current and over/undervoltage protection
- 5 deployment actuators (up to 2A per channel) and up to 10 deployment TLM interfaces
- Dedicated monitoring of current and voltage
- Over-current and over/undervoltage protection
- Debug connector for monitoring output channels and battery voltage during integration
Software support
NANOeps has a flight proven functionality. It is delivered with skyEGSE-GUI application to enable user immediate out of the box control, monitor and management of the equipment.
NANOeps is compliant with optional NANOsky CMM™ SDK that provides all functions to support controlling, monitoring and management of NANOeps equipment. All functions are provided in a comprehensive C++ library, with application-level examples for fast prototyping or functionality integration to a third-party software. This enables users a drastic savings in the development time for integration of SkyLabs equipment functions into customer specific EGSE, AIV/T or even MOC software.
Technical specifications
| Battery pack capacity | up to 158 Wh |
| Battery pack life time | > 15000 re-charge cycles @ 20% DoD (80% EOL capacity) |
| Charge rate | Continuous charge up to 18A (for NANOeps-158w) |
| Discharge rate | Continuous discharge up to 18 A, peak discharge up to 54 A (for NANOeps-158w) |
| Output channels | 3x 5V output (redundant)
2x 5V output 5x 12V output 2x 3.3V output 11x unregulated output |
| Maximal output channel current | Preconfigured to: 1 A, 1.25 A, 1.5 A, 2.4 A, 3 A, 3.5 A, or 6 A |
| Deployment Interfaces | 5x deployment interface outputs:
· Unregulated output voltage · Up to 2 A deployment current 10x deployment interface inputs: · Input voltage range up to 12 V. |
| Debug Connector | All output channels including deployment outputs and battery voltage routed to special debug connector for EGSE monitoring |
| Separation/RBF Switches | Two separation switches:
· Disconnect battery from bus. · Disconnect output channels from bus. RBF pin input and output: · Disconnect battery from bus. · Disconnect output channels from bus |
| Battery balancer | Active battery balancing per cell string. |
| Battery heaters | Individual thermal monitoring and heating per cell, heat power per cell up to 7.5 W |
| Battery fuse | One non-resettable fuse per battery string:
· Fuse current of 25 A. · I2t of 45 A2s. |
| On-board Communication interfaces | Redundant CAN bus for TM/TC |
| Supply voltage | Internal supplied from battery pack |
| Dimensions: | 95 x 91 x 193 mm (for NANOeps-158w) |
| Operation temperature | -10 °C to +45 °C |
| Storage temperature | -10 °C to +50 °C |
| Mass: | 2030 g (for NANOeps-158w) |
NANOamppt (2nd Generation)
The safest and most accurate solar array energy conversion unit
NANOamppt unit support the safest and most accurate solar array energy conversion method using the novel Analog Maximum Power Point Tracking feature, targeted for use on nano and microsatellites. NANOamppt is fully autonomous unit and compliant with NANOeps subsystem. It represents the second generation of SkyLabs’s flight proven equipment for the emerging space market. Its fault tolerance by design provides remarkable reliability and robustness against SEE. Fault tolerance is assured by the SkyLabs’ radiation harness assurance, that is based on a delicate component selection process and their radiation characteristics and flight heritage, latch-up protection by constant current monitoring and several other mitigation techniques. Several intelligent built-in functions enable NANOamppt to provide a rich set of TM for its autonomous analog MPPT conversion loop. NANOeps represents a key subsystem in the NANOsky 2nd generation platform due to its performance
Features
The NANOamppt presents a dedicated interface between solar panel arrays and the NANOeps system. It implements 8 independent Analog MPPT (Maximum Power Point Tracking) units with overcharge protection. It additionally includes rich local telemetry acquisition (monitoring of all solar panel parameters, including temperature), while exposing that over a redundant CAN-TS bus.
- 8 AMPPT channels, each optimized for a 7-cell (4 cm x 8 cm per cell, triple junction) solar panel.
- Overcharge protection optimized for a 3S LiFePO4 battery pack.
- Dedicated solar panel temperature sensor interface (NTC on solar panel).
- VBAT output to directly connect to the NANOeps BMM.
- Separation Switch interface.
- Instant boot up at power on
- Radiation hardened by design to increase reliability and robustness
- Constant current monitoring and limiting
- Selective components technology selection with flight heritage
- EDAC/ECC protected memories
- Advance three-level FDIR protection
- Watch-dog timer
- Comprehensive local subsystem telemetry (currents, voltages, temperatures, etc.)
- Interfaces:
- Redundant CAN interface for TM/TC
Software support
NANOamppt has a flight proven functionality. It is delivered with skyEGSE-GUI application to enable user immediate out of the box control, monitor and management of the equipment.
NANOamppt is compliant with optional NANOsky CMM™ SDK that provides all functions to support controlling, monitoring and management of NANOamppt equipment. All functions are provided in a comprehensive C++ library, with application-level examples for fast prototyping or functionality integration to a third-party software. This enables users a drastic savings in the development time for integration of SkyLabs equipment functions into customer specific EGSE, AIV/T or even MOC software.
Technical specifications
| Number of solar array inputs | 8 (each with dedicated AMPPT) |
| Number of NTC inputs | 10 |
| Solar array (input) parameters | Recommended 7 cell (8cm x 4cm triple junction cell) solar panel:
· 12.1V to 23.3V input voltage · Up to 557A input current · Maximum input power of 10W |
| Charge (output) parameters | Battery voltage between 7.5V and 10.5V.
Maximum output power of 9W per channel. |
| AMPPT efficiency (at 25°C, 25°C solar panels, ideal insolation) | More than 80% |
| Charge protection voltage limit | 10.6 ± 0.1V |
| On-board Communication interfaces | Redundant CAN bus for TM/TC |
| Supply voltage | Voltage range between 7.5V and 11V (external supply directly from battery) |
| Dimensions: | 95 x 91 x 11 mm |
| Operation temperature | -10 °C to +45 °C |
| Storage temperature | -10 °C to +50 °C |
| Mass: | 115 g |
NANOeps-mini with 31 Wh battery pack
NANOeps-mini (2nd Generation)
All-in-one electrical power system for nanosatellites
The NANOeps-mini is all-in-one EPS solution, targeted for use on nanosatellites. NANOeps-mini integrates all features of Power Control and Distribution Unit, Battery Management Module with integrated battery pack, and solar array inputs with safest and most accurate solar array energy conversion method using the novel Analog MPPT feature. Those features makes EPS really the most integrated EPS solution on the market. The battery pack features an active balancing to provide outstanding life-time and heating systems for the maximal battery cells protection. The NANOeps-mini represents the second generation of SkyLabs’s flight proven equipment for the emerging space market. Its fault tolerance by design provides remarkable reliability and robustness against SEE. Fault tolerance is assured by the SkyLabs’ radiation harness assurance, that is based on a delicate component selection process and their radiation characteristics and flight heritage, latch-up protection by constant current monitoring and several other mitigation techniques. Several intelligent built-in functions enable NANOeps-mini fully autonomous operation, making the power distribution, battery management and solar array energy conversion practically autonomous.
Features
The NANOeps-mini with build-in PCDU is providing 5 independent power output channels. It features dedicated deployment actuator interface with two TLM deployment interfaces.
It is comprised of two independent modules, one dedicated to battery management and one dedicated to power distribution and solar array energy conversion, both acting as nodes on a redundant CAN bus.
- Battery pack with capacity of 31 Wh
- Charging interfaces, supporting a total charging current of 3.6 A
- Independent heaters and thermal sensor per battery cell
- Independent battery balancer per cell string
- Independent battery protection fuse per cell string
- Separation Switch and Remove Before Flight interfaces
- Radiation hardened by design to increase reliability and robustness
- Constant current monitoring and limiting
- Selective components technology selection with flight heritage
- EDAC/ECC protected memories
- Advance three-level FDIR protection
- Watch-dog timer
- SEE immune non-volatile MRAM memories for TM storage
- Instant boot up at power on
- Comprehensive local subsystem telemetry (currents, voltages, temperatures, etc.)
- Interfaces:
- Redundant CAN interface for TM/TC
- 5 power output channels (supporting 5V outputs)
- Dedicated monitoring of current and voltage
- Over-current and over/undervoltage protection
- 2 deployment actuator (up to 2A per channel) and deployment TLM interface
- Dedicated monitoring of current and voltage
- Over-current and over/undervoltage protection
- Debug connector for monitoring output channels and battery voltage during integration
Software support
NANOeps-mini has a flight proven functionality. It is delivered with skyEGSE-GUI application to enable user immediate out of the box control, monitor and management of the equipment.
NANOeps-mini is compliant with optional NANOsky CMM™ SDK that provides all functions to support controlling, monitoring and management of NANOeps-mini equipment. All functions are provided in a comprehensive C++ library, with application-level examples for fast prototyping or functionality integration to a third-party software. This enables users a drastic savings in the development time for integration of SkyLabs equipment functions into customer specific EGSE, AIV/T or even MOC software.
Technical specifications
| Battery pack capacity | 31 Wh |
| Battery pack life time | > 15000 re-charge cycles @ 20% DoD (80% EOL capacity) |
| Charge rate | Continuous charge up to 3.6 A |
| Discharge rate | Continuous discharge up to 3.6 A, peak discharge up to 10.8 A |
| Output channels | 5x 5V output |
| Maximal output channel current | Preconfigured to: 1 A, 1.25 A, 1.5 A, 2.4 A, 3 A, 3.5 A, or 6 A |
| Deployment Interfaces | 2x deployment interface outputs:
· Unregulated output voltage · Up to 2 A deployment current 11x deployment interface inputs: · Input voltage range up to 12 V. |
| Separation/RBF Switches | Single separation switches:
· Disconnect battery from bus. · Disconnect output channels from bus. RBF pin input and output: · Disconnect battery from bus. · Disconnect output channels from bus |
| RBF Switches | RBF pin input and output:
· Disconnect battery from bus. · Disconnect output channels from bus |
| Battery balancer | Active battery balancing per cell string. |
| Battery heaters | Individual thermal monitoring and heating per cell, heat power per cell up to 7.5 W |
| Battery fuse | One non-resettable fuse per battery string:
· Fuse current of 25 A. · I2t of 45 A2s. |
| On-board Communication interfaces | Redundant CAN bus for TM/TC |
| Supply voltage | Internal supplied from battery pack |
| Dimensions: | 95 x 91 x 54 mm |
| Operation temperature | -10 °C to +45 °C |
| Storage temperature | -10 °C to +50 °C |
| Mass: | 502 g |
