Unlike an ICE vehicle, an EV lacks an alternator to recharge the 12-volt battery. Instead, the controller also manages a DC-to-DC converter that charges the 12-volt battery using the high-voltage ...

The system takes direct current (DC) from the main battery and steps it down from the pack's voltage—usually anywhere from 300 to 900 volts—to the charging voltage of a 12-volt battery which ...

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“We’ve been working with customers developing very compact DC-to-DC converters that convert the high-voltage battery down to 48 volts,” says Green. And for any legacy 12-volt devices, Vicor offers ...

That can cause the DC/DC converter to fail and prevent the 12-volt battery from charging. If a fault with the 12-volt battery is detected, "the vehicle will provide several, major warnings to the ...