Chowotcha cha PTC ndi chotenthetsera chomwe chimapangidwira magalimoto atsopano opangira mphamvu.Chowotcha cha PTC chimatenthetsa galimoto yonse, chimapereka kutentha kwa cockpit ya galimoto yatsopano yamagetsi ndipo chimakwaniritsa zofunikira zotetezera bwino ndi kupukuta.Chotenthetsera cha PTC chimathanso kutenthetsa njira zina zamagalimoto zomwe zimafuna kuwongolera kutentha (mwachitsanzo batire).Chotenthetsera cha PTC chimagwira ntchito potenthetsa antifreeze ndi magetsi kuti chitenthe mkati ndi mpweya wofunda.Chotenthetsera cha PTC chimayikidwa mumayendedwe ozungulira oziziritsidwa ndi madzi momwe kutentha kwa mpweya wofunda kumakhala kofewa komanso kowongolera.Chotenthetsera cha PTC chimayendetsa ma IGBT okhala ndi malamulo a PWM kuti aziwongolera mphamvu ndipo amakhala ndi nthawi yochepa yosungira kutentha.Chotenthetsera cha PTC ndichochezeka ndi chilengedwe komanso chopatsa mphamvu, mogwirizana ndi kusakhazikika kwachilengedwe masiku ano.