Manufacturers build mild hybrid electric vehicles (MHEVs) with the ultimate goal of reducing greenhouse gas (GHG) emissions. An MHEV incorporates a 48-V motor-drive system connected to the transmission system of a vehicle. To reduce GHG emissions, the internal combustion engine (ICE) in an MHEV turns off when the vehicle is coasting, while the 48-V motor system charges the 48-V battery to provide electricity for the vehicle. In this article, we will discuss how to create a 48-V motor-driver design that offers high-power motor driving, achieves functional safety and is small in size.
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