Iziqalisi ezithambile (isiqalisi esithambile) isethi yokuqalisa okuthambile kwemoto kanye nokuma okuthambile, izici zokuvikela ezintsha kwenye yedivayisi yokulawula imoto. Ingxenye yayo eyinhloko ixhunywe kugesi ene-three charged ene-motor reverse parallel thyristor kanye ne-electronic control circuit yayo. Ingasebenzisa izindlela ezahlukahlukene, ukulawula i-angle ye-conductivity ye-thyristor ephambene ukuze yenze i-voltage yokufaka yemoto elawulwayo ishintshe ngokwezidingo ezahlukene futhi ifeze umsebenzi ohlukile. Isiqalisi esithambile kanye nesiguquli semvamisa kuyizindlela ezimbili ezihlukene ngokuphelele zokusetshenziswa kwemikhiqizo. Isiguquli semvamisa sisetshenziselwa izindawo ezidinga isivinini, okukhiphayo ngeke kushintshe i-voltage kuphela kanye nokushintsha imvamisa ngesikhathi esisodwa.Isiqalo Esithambileempeleni iyisilawuli se-voltage sokuqala kwemoto, imvamisa ye-voltage yokukhipha ayishintshi. I-Converter inikeza wonke umsebenzi wokuqala othambile, kodwa ibiza kakhulu kune-starter ethambile, isakhiwo siyinkimbinkimbi kakhulu. I-Starter ethambile yemoto isebenzisa intambo phakathi kokunikezwa kwamandla kanye ne-Starter ethambile yemoto yokulawula, ukulawula i-engeli yokuqhuba i-thyristor, i-voltage yokufaka yemoto ikhuphuka isuka ku-zero iye kumsebenzi ohleliwe kancane kancane, kuze kube sekupheleni kokuqala, okunikeza i-voltage yemoto, okuyi-soft-start, ngesikhathi sokuqala okuthambile, i-torque yokuqala yemoto iyanda kancane kancane.
