Galvanic Isolation for Battery Management Systems (BMS)
Electromagnetic noise is a major issue in any electrical power train, both in full electrical or hybrid architectures. Consequently, due to the presence of hazardous high voltage (above 25 Vac or 60 Vdc), galvanic isolation is necessary between the domains of a battery management system and also between the primary and secondary systems of both ac-dc and dc-dc. The control of all the subsystems requires a communication bus that transports the control, actuation and sensor signals among the different components. Since it has to be immune to the electromagnetic noise and, at the same time, comply with the mechanical, temperature, and weight constraints of the vehicle, optical connections with POF are ideal.
For details, please see the white paper: