TinyAFE v2 up to 1000V (Upcoming)

  • Up to 1000V !
  • Cell voltages and temperature measurements
  • Connectivity: Isolated communication, UART, MODBUS, CAN and Bluetooth
  • Supports all lithium chemistries
  • Dissipative Balancing up to 150 mA
  • Supporting up to two external temperature sensors
  • Event Log, Usage Statistics
  • Free Firmware Upgrades
  • Programmable Inputs & Outputs
  • Ultra-Compact Design

Description

TinyAFE up to 1000V Slave Board Digital Analog-FrontEnd Battery Monitoring for Custom High Voltage Applications

Enepaq upcoming TinyAFE up to 1000V is a slave board digital analog-frontend for custom high voltage applications is an essential component for creating large high voltage Lithium battery. TinyAFE supports lithium batteries of any chemistry and is capable up to 1000V. Isolated communication allows connecting battery packs in series, i.e. with one master control unit, client can monitor and control high voltage battery pack. TinyAFE measures individual voltages of parallel cell groups. During charging, cells are balanced by bleeding-off higher cells to accomplish full balance and maintain good health of battery pack. State-of-Charge is calculated as well, and is available via communication bus to be displayed for user.

In summary, in battery monitoring applications, the AFE serves as the interface that prepares analog signals (voltage, current, temperature) from the battery for digital processing. It also includes protective features and interfaces for real-time monitoring and control of the battery’s health and performance. This is crucial in applications where batteries are used, such as in electric vehicles, uninterruptible power supplies (UPS), and renewable energy systems.

Check out for more how critical in some applications TinyAFE up to 1000V can be: TinyAFE v2.2 up to 1000V for Formula SAE Electric – ENEPAQ

FLEXIBILITY

User-upgradeable firmware allows quick updates, bringing bug fixes, new features and other improvements, such as client-specific functionality. Integrated communication bus allows easy reconfiguration and streaming of real time data, while extension I/Os enables operation with various external peripherals: contactors, Enable switches, SOC gauges and more.

APPLICATIONS

  • High Voltage Battery Systems
  • Formula SAE Electric with High Voltage Batteries
  • Stationary Solar & Wind Storage
  • Personal Transportation with High Voltage Batteries
  • Autonomous Drones
  • Autonomous Robotics
  • Electric Bikes
  • Electric Bicycles
  • Electric Scooters
  • Special Purpose Machines
  • Golf Carts
  • Go Carts
  • Renewable energy
  • Industrial Equipment

SAFETY

To ensure the security of you and your surroundings, please read these rules and follow all the guidelines contained installation instructions of our Battery Management System (Tiny BMS):

• DO NOT use the system where it may cause interference (eg. medical equipment);
• DO NOT use the system in an explosive environment;
• The system is NOT resistant to the chemical environment and mechanical stress;
• All electrical equipment MUST be rated for the voltage of the battery and battery management system;
• Use double-insulated tools;
• DO NOT short-circuit the battery or battery management system terminals, this could cause the damage to the product or the personal property;
• DO NOT lay tools or metal parts on top of the batteries or near the battery management system cable lugs;
• Before establishing connections, make sure to verify polarity.

This list is not exhaustive, and it is the responsibility of the system designer / installer to conduct their own failure mode analysis and determine what is required.

Working around batteries is DANGEROUS. Risk associated with improper use of the battery with the Tiny BMS device includes: short-circuit, fire or explosion.

Read the ENTIRE documentation to become familiar with the Tiny BMS device and its features before operating. Failure to operate the product correctly and safely may result in damage to the product, personal property and cause serious injury.

Throughout the literature the term “Note:” will be used to indicate procedures which, if not properly followed, create a possibility of physical property damage.

Using Tiny BMS device requires at least basic knowledge in electronics and electrical engineering. Enepaq will not be held responsible for damage to the battery or any consequence, if the Tiny BMS device is used improperly and no warranty is provided in such case.

What is AFE?

In the context of battery monitoring, an Analog Front End (AFE) is a critical component that helps interface between the battery and the digital control and monitoring system. Here’s how an AFE is typically used in battery monitoring applications:

  1. Signal Conditioning:
    • Battery voltage and current levels can vary widely, and they are usually analog signals. The AFE includes amplifiers to scale these signals to levels suitable for measurement and processing. For example, it might amplify a low-level voltage signal from a battery voltage sensor.
  2. Signal Filtering:
    • Batteries can generate noise and voltage transients due to various factors, including load changes. Filtering within the AFE helps remove unwanted noise and stabilize the signals, ensuring accurate measurements.
  3. Analog-to-Digital Conversion (ADC):
    • Battery voltage and current need to be monitored digitally for precise control and management. AFEs incorporate ADCs to convert these analog signals into digital form. The resulting digital data can be processed by a microcontroller or battery management system (BMS).
  4. Voltage References:
    • AFEs often include voltage references to ensure the accuracy of ADC conversions. This is critical for precise battery voltage measurements.
  5. Protection Features:
    • Battery monitoring is not just about measurement; it also involves protecting the battery from overvoltage, overcurrent, and other potential issues. AFEs may include protection circuits to monitor these conditions and trigger actions, such as disconnecting the load or stopping charging.
  6. Temperature Monitoring:
    • Battery health is closely related to temperature. AFEs can include temperature sensors or interfaces to external temperature sensors to monitor the battery’s temperature. This information is crucial for preventing over-temperature conditions.
  7. Data Interface:
    • AFEs provide a digital interface (such as SPI or I2C) for communicating the measured and processed battery data to a microcontroller or battery management system. This allows for real-time monitoring and control of the battery.
  8. Multiplexing:
    • In systems with multiple batteries or cells to monitor (e.g., in battery packs), multiplexers within the AFE allow selecting and monitoring individual cells or batteries one at a time.
  9. Alerts and Alarms:
    • AFEs can generate alerts and alarms based on the monitored parameters. For example, if a battery voltage exceeds safe limits, the AFE can trigger an alert to initiate protective actions.
  10. Current Measurement:
    • Current monitoring is essential for tracking charging and discharging processes accurately. AFEs include current sensing components and circuits to measure current flow in and out of the battery.

In summary, in battery monitoring applications, the AFE serves as the interface that prepares analog signals (voltage, current, temperature) from the battery for digital processing. It also includes protective features and interfaces for real-time monitoring and control of the battery’s health and performance. This is crucial in applications where batteries are used, such as in electric vehicles, uninterruptible power supplies (UPS), and renewable energy systems.