Low cost linear current limiter for Stop-Start vehicles

This article presents a Linear Current Limiter (LCL) specially meant for μ-hybrid vehicles using the Stop-Start function. The LCL limits the current mainly during the start-up of the Internal Combustion Engine (ICE) in order to maintain the battery voltage stable. Its main advantages is the low price and the fact of avoiding EMC perturbation since it is composed of MOSFETs working in linear mode [1]. The concept is validated limiting the charging current of a capacitor by simulation and comparing with experimental results.