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Cholinga chachikulu cha thyristor mu dera?

Kugwiritsiridwa ntchito kofunikira kwambiri kwa ma rectifiers oyendetsedwa ndi silicon wamba ndikuwongolera kowongolera. Dera lodziwika bwino la rectifier ndi gawo lowongolera losasinthika. Ngati diode yasinthidwa ndi silicon controlled rectifier, dera lowongolera lowongolera lingapangidwe. Chimodzi mwazosavuta gawo limodzi la theka-wave controllable rectifier circuit. Pa nthawi yabwino theka mkombero wa sinusoidal AC voteji u2, ngati ulamuliro elekitirodi VS si athandizira choyambitsa kugunda ug, ndi VS akadali anatsegula. Pokhapokha pamene u2 ili mu chigawo chabwino cha theka ndipo choyambitsa pulse ug chimagwiritsidwa ntchito pa electrode yolamulira, thyristor imayamba kutsegulidwa. Ngati ug ifika mofulumira, thyristor idzatsegula mofulumira; ngati ug ifika mochedwa, thyristor idzayatsa mochedwa. Posintha nthawi yofika ya trigger pulse ug pamtengo wowongolera, mtengo wapakati wa ul wa voliyumu yotulutsa pa katunduyo ukhoza kusinthidwa. Muukadaulo, theka la kuzungulira kwapano nthawi zambiri limayikidwa ngati 180 °, yomwe imatchedwa ngodya yamagetsi. Mwanjira iyi, mumzere uliwonse wabwino wa u2, ngodya yamagetsi yomwe imachokera pamtengo wa ziro mpaka mphindi ya kugunda kwa trigger imatchedwa control angle α; ngodya yamagetsi yomwe thyristor imachita mumzere uliwonse wabwino imatchedwa conduction angle θ. Mwachiwonekere, onse α ndi θ amagwiritsidwa ntchito kusonyeza kuwongolera kapena kutsekereza kwamtundu wa thyristor mkati mwa theka la kuzungulira kwa voliyumu yakutsogolo. Pakusintha kolowera α kapena kondomu ya θ, mtengo wapakati wa pulse DC voltage pa katundu umasinthidwa, ndipo kuwongolera kowongolera kumachitika. Mu dera lokonzanso mlatho, ma diode awiri okha ndi omwe amafunikira kusinthidwa ndi zowongolera zoyendetsedwa ndi silicon kuti apange gawo lowongolera lomwe limayendetsedwa ndi mafunde.