Conventionally, a centralized power supply is applied in an automotive powertrain through a multichannel transformer that converts 12-V dc power from the battery to supply six, isolated gate-drive circuits. Designers face many challenges in a centralized transformer model, including layout complexity and electromagnetic interference (EMI). There are also challenges associated with larger board space and higher printed-circuit-board (PCB) cost, as more layers are needed to route isolated signal/power lines...
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