Ihitha ye-PTC iyihitha eyenzelwe izimoto zamandla amasha.Isifudumezi se-PTC sishisisa yonke imoto, sinikeza ukushisa endaweni yabashayeli bemoto entsha yamandla futhi sihlangabezana nemibandela yokuqeda isithwathwa ngokuphephile nokususa inkungu.Ihitha ye-PTC ingafudumeza nezinye izindlela zemoto ezidinga ukulawulwa kwezinga lokushisa (isb. ibhethri).Isifudumezi se-PTC sisebenza ngokushisisa ngogesi isinqandi-qhwa ukuze sishisiswe ngaphakathi yinkambo yomoya efudumele.I-heater ye-PTC ifakwe ohlelweni lokujikeleza kwamanzi olupholile lapho izinga lokushisa lomoya ofudumele lithambile futhi liyalawuleka.I-heater ye-PTC ishayela ama-IGBT ngokulawulwa kwe-PWM ukuze ilawule amandla futhi inomsebenzi wesikhashana wokugcina ukushisa.Ihitha ye-PTC ihambisana nemvelo futhi iyonga amandla, ngokuhambisana nokusimama kwemvelo kwezikhathi zanamuhla.