White Paper: Electronics & Computers

Busbar Shunts for Current Measurement: A complete guide to eMobility solutions


The automotive industry is undergoing a fundamental change. Electromobility is gaining ground in all sectors, from passenger cars to commercial vehicles and passenger transportation. Increasingly, this involves the complete electrification of vehicles instead of the hybrid technology that has been widespread to date. Conventional combustion engines will gradually disappear. Accordingly, pure electric motors and their components must become increasingly more powerful, precise, reliable and durable.

Both hybrid and electric vehicles are high-current applications that require a precise battery management system (BMS). Three central parameters must be recorded as accurately as possible in the BMS, not least in order to be able to make clear statements about the possible range of an e-vehicle: the cell voltage, the cell temperature and the current flow.

Busbar shunts from Isabellenhütte, a specialist in low-ohmic precision and power resistors, are very well suited for measuring high currents. What distinguishes Isabellenhütte's busbar shunts, what special features and possible uses the individual variants provide, is the subject of this white paper on the BAx series: BAS, BAC, BAX and brand new: BAU.

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