Ipulaki yenzwa kawoyela isho inzwa yomfutho kawoyela. Isimiso siwukuthi lapho injini isebenza, idivayisi yokulinganisa ingcindezi ibona umfutho kawoyela, iguqule isignali yokucindezela ibe isignali kagesi, futhi iyithumele kumjikelezo wokucubungula isignali. Ngemuva kokukhulisa i-voltage nokukhulisa amandla kwamanje, isignali yengcindezi ekhulisiwe ixhunywe negeji yomfutho kawoyela ngomugqa wesiginali.
Umfutho kawoyela wenjini uboniswa isilinganiso samanje phakathi kwamakhoyili amabili kusibonisi esishintshashintshayo somfutho kawoyela. Ngemva kokukhulisa i-voltage nokukhulisa kwamanje, isignali yokucindezela iqhathaniswa ne-voltage ye-alamu esethwe kusekethi ye-alamu. Uma i-voltage ye-alamu iphansi kune-voltage ye-alamu, isifunda se-alamu sikhipha isignali ye-alamu futhi sikhanyise isibani se-alamu ngomugqa we-alamu.
Inzwa yomfutho kawoyela iyisisetshenziswa esibalulekile sokuthola umfutho kawoyela wenjini yemoto. Izilinganiso zisiza ukulawula ukusebenza okuvamile kwenjini.
Ipulaki yokuzwa uwoyela yakhiwe i-chip yenzwa yokucindezela kwefilimu ewugqinsi, isifunda sokucubungula isignali, indlu, idivayisi yebhodi lesifunda engaguquki kanye nemikhondo emibili (umugqa wesiginali nolayini we-alamu). Isekhethi yokucubungula isignali iqukethe isekethe yokuphakelwa kwamandla, isekethe yesinxephezelo senzwa, isekethe ye-zerosetting, isekethe yokukhulisa amandla kagesi, isekethe yamanje yokukhulisa amandla, isekethi yesihlungi kanye nesekhethi ye-alamu.
