Space-saving current and voltage measurement devices for hybrid and electric vehicles

For use in hybrid and electric vehicles, precision and component size are crucial factors. The small, and therefore space-saving, IMC (shunt: 20 x 85 mm, board 20 x 40 mm) can perform measurements within a current range of ± 1,500 A at a resolution of 50 mA. The sensor module records voltage within a range of ± 20 V at a resolution of 1 mV.

Measurements are taken via a 100-µ-ohm-shunt, and measured values are logged by the four-channel 16-bit data acquisition system ISA-ASIC. For this pre-calibrated sensor module, customer calibration is no longer necessary. Both supply voltage and SPI signal are electrically isolated.