I-Polarity Reversing Rectifier (PRR) sisixhobo sombane se-DC esinokutshintsha i-polarity yemveliso yaso. Oku kuyenza ibe luncedo ngakumbi kwiinkqubo ezifana ne-electroplating, i-electrolysis, i-electromagnetic braking, kunye nolawulo lwe-DC motor, apho kufuneka kutshintshwe indlela yangoku.
1.Indlela Esebenza Ngayo
Ii-rectifiers eziqhelekileyo ziguqula i-AC ibe yi-DC nge-polarity esisigxina. Ii-PRR zakha phezu koku ngokusebenzisa izixhobo zamandla ezilawulwayo—ezifana ne-thyristors, ii-IGBTs, okanye ii-MOSFET—ukubuyisela umva ukuhamba kwamandla angoku. Ngokulungisa i-engile yokudubula okanye ulandelelwano lokutshintsha, isixhobo sinokuguqula ngokukhawuleza okanye ngokucokisekileyo imveliso ukusuka kwi-positive ukuya kwi-negative.
2. Ulwakhiwo lweSekethe
Ngokwesiqhelo, i-PRR isebenzisa i-rectifier yebhuloho elawulwa ngokupheleleyo:
Igalelo le-AC → Ibhulorho yoLungiso oluLawulwayo → Isihluzi → Layisha
Ibhulorho inezinto ezine ezilawulekayo. Ngokulawula ukuba zeziphi izixhobo ezisebenza kwaye nini, imveliso inokutshintsha phakathi:
▪ I-polarity elungileyo: ukuhamba komsinga ukusuka kwisiphelo esihle ukuya kumthwalo.
▪ I-polarity engalunganga: ukuhamba komsinga kwicala elichaseneyo.
Amanqanaba evolthi angahlengahlengiswa ngokutshintsha i-trigger angle (α), okuvumela ulawulo oluchanekileyo lwe-polarity kunye nobukhulu.
3.Izicelo
(1) Ukucoca nge-Electrolysis kunye ne-Electrolysis
Ezinye iinkqubo zifuna ukuba umbane ujike umva rhoqo ukuze kuphuculwe umgangatho wokugquma. Ii-PRR zibonelela ngombane we-DC onokulawuleka nohamba kwicala ngalinye ukuhlangabezana nale mfuneko.
(2) Ulawulo lweeMoto zeDC
Isetyenziselwa ukusebenza phambili/ukubuyela umva kunye nokuqhobosha okuvuselelayo, ukubuyisela amandla kwinkqubo.
(3) Ukubhrakisha nge-electromagnetic
Ukubuyisela umva kwamandla kwenza ukuba iinkqubo zoomatshini zikhawuleze okanye zikhutshwe ngokulawulwayo.
(4) Ilebhu kunye noVavanyo
Ii-PRR zibonelela ngemveliso ye-bipolar DC ecwangcisiweyo, efanelekileyo kuphando, uvavanyo, kunye novavanyo olufuna i-flexible polarity.
Izilungisi zokuguqula umva zePolarity ziya zisiba zibaluleke ngakumbi kushishino nakuphando. Zidibanisa ulawulo oluguquguqukayo lwePolarity kunye nokuguqulwa kwamandla okusebenzayo, nto leyo ezenza zibe yimfuneko kwiinkqubo ezininzi ze-elektroniki zanamhlanje. Njengoko izixhobo kunye netekhnoloji yokulawula ziphucuka, kulindeleke ukuba ii-PRR zifumane ukusetyenziswa okubanzi ngakumbi.
Ixesha leposi: Oktobha-17-2025
