Chidule cha kuyesa kwachitetezo cha overcurrent

Mumndandanda wama adapter amagetsi, zonse zomwe zanyamula ziyenera kuyenda kudzera mu chubu chowongolera. Pakachulukirachulukira, kuyitanitsa nthawi yomweyo kwa capacitor yamphamvu kwambiri kapena dera lalifupi pamapeto otulutsa, mphamvu yayikulu idzadutsa mu chubu chowongolera. Makamaka pamene linanena bungwe voteji ndi mosadziwa yochepa circuited, voteji athandizira onse anawonjezera pakati pa wokhometsa ndi emitter mizati ya mndandanda kusintha chubu, chifukwa cha chiwawa kuwonjezeka m'badwo kutentha mu chubu. Panthawiyi, ngati palibe njira zodzitetezera zoyenera, chitolirocho chidzawotchedwa nthawi yomweyo. Kutentha kwa kutentha kwa transistor ndi kochepa kwambiri kusiyana ndi fuse yosakanikirana, kotero yotsirizirayo singagwiritsidwe ntchito kuteteza zakale. Wowongolera mndandanda uyenera kutetezedwa ndi dera lachitetezo chamagetsi ndikuyankha mwachangu. Dera lodzitchinjiriza lamagetsi litha kugawidwa m'mitundu yocheperako komanso mtundu wapano wa cutoff. Yoyamba imaletsa machubu owongolera omwe ali pansi pa mtengo wina wachitetezo, pomwe chomalizacho chimadula nthawi yomweyo chubu chowongolera ngati chikuchulukirachulukira kapena ngozi yayifupi yozungulira kumapeto.

The malamulo DC mphamvu adaputala adzabala amphamvu zoipa mkulu voteji, ndiyeno kulumikiza chigawo chimodzi kwa cathode ndi gawo lina kwa anode, ndiyeno kupanga amphamvu magetsi munda pakati cathode ndi anode. Munda wamagetsi pamitengo yonse iwiri upitilira mphamvu yodziwika, imatuluka. Panthawiyi, ionization idzachitika kuzungulira magetsi, ndiyeno ma electron ambiri ndi ma ion adzapangidwa. Patapita kanthawi, mukhoza kumva mphepo yamphamvu yamagetsi yozungulira malo amagetsi. Kuwala kukakhala mdima, mutha kuwona korona wonyezimira wonyezimira wakuzungulirani. Komanso, kuzungulira munda wamagetsi, padzakhala phula yambiri, fumbi ndi tinthu tating'onoting'ono tomwe timaphatikizana ndi ma ion kapena ma electron, omwe amasunthira kumitengo pansi pa mphamvu yamagetsi. Unyinji wa electron ndi wochepa kwambiri, koma kuthamanga kwake kumathamanga kwambiri, choncho makamaka amachitidwa ndi tinthu tating'onoting'ono.