Battery Monitoring System

The PML designed Battery sensing and monitoring systems consists of three sensors:

  1. current sensor (hall effect and or shunt based)
  2. voltage sensor, and
  3. temperature sensor

The three sensor signals are read by analog-to-digital converters (ADCs), processed by a programmable STM32 micro-controller, and provided at the output via the CAN interface. A particular feature of the product is its independent power supply and galvanically insulated design. Therefore the device operates directly with 12V DC and can be attached on both high-side and low-side of the high voltage (HV) battery system.

What we can offer:

Key features:

  • Multisensor system (current, voltage, temperature)
  • Galvanically insulated design
  • High-side and low-side of HV battery
  • Contactless Melexis 91208 Hall sensor OR Customer specified sensor
  • This BMS module is flexible enough to integrate an IoT module for remote monitoring.
Parameter Typical Value Unit
Primary input current range ±5…±500 A
Voltage measurement range ±5…±800 V
Measurement accuracy 1.0 %
Operation temperature range –40 … 85 °C
Supply voltage 12 V
CAN interface refresh time 1.0 ms

Applications:

  • Battery monitoring, e-mobility
  • State-of-charge, state-of-health
  • Prototyping, development, test platform
  • Functional safety

Industries:

  • Automotive (HEV, EV)
  • Charging stations - Power plants
  • Grid Storage Batteries
  • Aviation
  • Defense
  • Medical
  • Renewable energy
  • Energy Meter