DHAB Series Open-Loop Automotive Current Sensors

The LEM DHAB series is designed for the electronic measurement of DC, AC, or pulsed currents in high-power and low-voltage automotive applications with galvanic separation between the primary circuit and the secondary circuit. It comes with a dual-channel sensor for a wider measurement range and redundancy. This series gives users the choice of having different current measuring ranges in the same housing (from ±20 A to ±900 A).This open-loop automotive current sensor uses a Hall effect integrated circuit. The magnetic flux density, contributing to the rise of the Hall voltage, is generated by the primary current to be measured. The current to be measured is supplied by a current source, such as a battery or generator.