1. DC grill system including DC Motor, DC fan, DC hot rod and power adaptor;
2. AC grill system including AC Motor, AC fan, and AC hot rod;
AC Grill System
DC Grill System
System Design Difficulties
Whatever AC and DC has mature solutions
DC has better performance on control, including diagnostic, motor and fan speed;
Power adaptor is needed additional
12V is safety to people
AC has 230W while DC with 100 W in max.
DC is compatible for 110V, 220V and 12V DC, which could be powered by car.