Isolation Amplifier for Voltage Sensing in Electric and Hybrid Vehicles

The introduction of electric and hybrid electric vehicles have added high voltage electric modules into the car. The battery stack in a hybrid can be in excess of 150V, higher for the inverter driving the motor. Avago Technologies' ACPL-782T automotive isolation amplifier, which is part of the R²Coupler, integrates many functions such as safe insulation, common mode transient rejection and analog sensing in a compact 300mil dual-in-line package.