{HEAD ~ a voltage regulator} connected to the output of the generator and further connected to intermittently control energization of the field including a power semi conductor in {TAIL ~ series} with the field , a comparator and control stage connected to and comparing the output voltage of the alternator with a reference and controlling conduction of the power semi conductor , a first integrated circuit monolithic chip on which the power semi conductor is formed and a second IC monolithic chip on which the comparator and control stage is formed, 
{ HEAD ~ a voltage regulator } connected to the output of the generator and further connected to intermittently control energization of the field including a power semi conductor in { TAIL ~ series } with the field , a comparator and control stage connected to and comparing the output voltage of the alternator with a reference and controlling conduction of the power semi conductor , a first integrated circuit monolithic chip on which the power semi conductor is formed and a second IC monolithic chip on which the comparator and control stage is formed ,
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