Aukudluliselwaiyisakhi se-elekthronikhi esisebenzisa izimiso ze-electromagnetic noma eminye imiphumela ebonakalayo ukuze kufezwe "ukuvulwa/ukuvalwa okuzenzakalelayo" kwamasekethe. Umsebenzi wayo oyinhloko ukulawula ukuvulwa kwamasekethe amakhulu kagesi/amandla aphezulu ngogesi/amasignali amancane, kuyilapho futhi kufezwa ukuhlukaniswa kukagesi phakathi kwamasekethe ukuqinisekisa ukuphepha kokuphela kokulawula.

Imisebenzi yayo eyinhloko ingahlukaniswa ngezigaba ezintathu:

1. Ukulawula Nokukhulisa: Kungaguqula izimpawu zokulawula ezibuthakathaka (njengemisinga yezinga le-milliampere ekhishwa ngama-microcomputer nama-sensor e-single-chip) ibe yimisinga enamandla eyanele ukushayela amadivayisi anamandla aphezulu (njengezinjini nama-heater), esebenza njenge-"signal amplifier". Isibonelo, emakhaya ahlakaniphile, izimpawu zikagesi ezincane ezithunyelwa izinhlelo zokusebenza zefoni zingalawulwa ngama-relay ukuvula nokuvala amandla ama-air conditioner nezibani zasekhaya.

2. Ukuhlukaniswa kukagesi: Akukho ukuxhumana okuqondile kukagesi phakathi kwesekethe yokulawula (i-voltage ephansi, i-current encane) kanye nesekethe elawulwayo (i-voltage ephezulu, i-current enkulu). Imiyalelo yokulawula idluliselwa kuphela ngezibonakaliso ze-electromagnetic noma ze-optical ukuvimbela i-voltage ephezulu ukuthi ingangeni esigungwini sokulawula futhi yonakalise imishini noma ibeke ukuphepha kwabasebenzi engozini. Lokhu kuvame ukutholakala kumasekethe okulawula amathuluzi omshini wezimboni kanye nemishini kagesi.

3. I-Logic kanye Nokuvikelwa: Ingahlanganiswa ukuze kusetshenziswe i-logic yesekethe eyinkimbinkimbi, njengokukhiya (ukuvimbela ama-motor amabili ukuthi aqale ngesikhathi esisodwa) kanye nokulawula ukubambezeleka (ukubambezela ukuxhumana komthwalo isikhathi esithile ngemva kokuvula). Amanye ama-relay anikezelwe (njenge-relay yokudlula kwamandla kagesi kanye nama-relay okushisa ngokweqile) angaphinde aqaphe ukungasebenzi kahle kwesekethe. Uma amandla kagesi emakhulu kakhulu noma izinga lokushisa liphezulu kakhulu, azonqamula isekethe ngokuzenzakalelayo ukuze avikele imishini kagesi ekulimaleni kokudlula kwamandla kagesi.