Aireyilicandelo le-elektroniki elisebenzisa imigaqo ye-electromagnetic okanye ezinye iziphumo zomzimba ukufezekisa "ukuvula/ukucima ngokuzenzekelayo" kweesekethe. Umsebenzi walo oyintloko kukulawula ukuvulwa kweesekethe ezinkulu zamandla ombane/eziphezulu ngombane/iisignali ezincinci, ngelixa likwafezekisa ukwahlulwa kombane phakathi kweesekethe ukuqinisekisa ukhuseleko lwesiphelo solawulo.

Imisebenzi yayo ephambili inokwahlulwahlulwa ibe ziindidi ezintathu:

1. Ulawulo kunye nokwandisa amandla: Ingaguqula iimpawu zolawulo ezibuthathaka (ezifana nemisinga ye-milliampere ekhutshwa zii-microcomputers kunye nee-sensors ze-single-chip) zibe yimisinga enamandla ngokwaneleyo ukuqhuba izixhobo ezinamandla aphezulu (ezifana nee-motors kunye nezifudumezi), esebenza njenge-"signal amplifier". Umzekelo, kumakhaya akrelekrele, iimpawu zombane ezincinci ezithunyelwa zii-apps zefowuni zinokulawulwa ngee-relay ukuvula nokucima amandla e-air conditioners kunye nezibane zasekhaya.

2. Ukwahlulwa kombane: Akukho nxibelelwano lombane ngqo phakathi kwesekethe yokulawula (i-voltage ephantsi, i-current encinci) kunye nesekethe elawulwayo (i-voltage ephezulu, i-current enkulu). Imiyalelo yolawulo idluliselwa kuphela ngemiqondiso ye-electromagnetic okanye ye-optical ukuthintela i-voltage ephezulu ukuba ingangeni kwi-terminal yokulawula kwaye yonakalise izixhobo okanye ibeke ukhuseleko lwabasebenzi emngciphekweni. Oku kuxhaphake kakhulu kwiisekethe zokulawula zezixhobo zoomatshini bemizi-mveliso kunye nezixhobo zamandla.

3. I-Logic kunye noKhuseleko: Ingadityaniswa ukuze kuphunyezwe i-complex circuit logic, efana nokudityaniswa (ukuthintela iimoto ezimbini ukuba ziqale ngaxeshanye) kunye nokulawula ukulibazisa (ukulibazisa uqhagamshelo lomthwalo ixesha elithile emva kokuvulwa kwamandla). Ezinye ii-relay ezinikezelweyo (ezifana nee-overcurrent relay kunye nee-overheating relay) nazo zinokujonga ukungaqheleki kwesekethe. Xa i-current inkulu kakhulu okanye ubushushu buphezulu kakhulu, ziya kuyinqumla ngokuzenzekelayo i-circuit ukukhusela izixhobo zombane ekonakaleni kokugqithisa.