I'm making a small DC tesla coil with a rotating spark gap. The motor controlling the RSG draws about 3.8 amps of current at full load, and the 555 control circuit and amp draws about 4 amps. Would it be best to run the motor and 555 circuit parallel from the +12v or in series? If it's in series would the motor current draw cause an excess of current through my 555 or am I looking at it wrong?