Polarity Reversing Rectifier

Polarity Reversing Rectifier (PRR) ndi chipangizo cha DC chomwe chimatha kusintha mawonekedwe ake. Izi zimapangitsa kuti zikhale zothandiza kwambiri pamachitidwe monga electroplating, electrolysis, electromagnetic braking, ndi DC motor control, pomwe kusintha komwe kuli kofunikira ndikofunikira.

1.Mmene Imagwirira Ntchito
Okonzanso nthawi zonse amasintha AC kukhala DC yokhala ndi polarity yokhazikika. Ma PRR amamanga pa izi pogwiritsa ntchito zida zamagetsi zowongolera-monga ma thyristors, IGBTs, kapena MOSFETs-kuti asinthe zomwe zikuchitika. Posintha mawonekedwe owombera kapena kusinthana kosinthira, chipangizocho chimatha kutembenuza bwino kapena mwachangu kutulutsa kuchokera ku zabwino kupita ku zoyipa.

2.Mapangidwe Ozungulira
Nthawi zambiri, PRR imagwiritsa ntchito chowongolera mlatho choyendetsedwa bwino:
Zolowetsa za AC → Mlatho Wowongolera Wowongolera → Sefa → Katundu
Mlathowu uli ndi zinthu zinayi zowongolera. Poyang'anira zida zomwe zikuyenda komanso nthawi yake, zotulutsa zimatha kusinthana:
▪ Polarity (Positive polarity): madzi akuyenda kuchokera ku terminal kupita ku katundu.
▪ Negative polarity: madzi akuyenda molowera kwina.
Magawo amagetsi amathanso kusinthidwa posintha ngodya ya trigger (α), kulola kuwongolera bwino kwa polarity ndi kukula kwake.

3.Mapulogalamu
(1) Electroplating & Electrolysis
Njira zina zimafunika kuti zisinthe nthawi ndi nthawi kuti zokutira zikhale zabwino. Ma PRR amapereka chowongolera, chapawiri cha DC kuti akwaniritse izi.
(2) DC Motor Control
Amagwiritsidwa ntchito poyang'ana kutsogolo / kubwerera kumbuyo ndi kubwezeretsanso mabuleki, kubwezeretsa mphamvu ku dongosolo.
(3) Magetsi amagetsi
Kubwerera m'mbuyo kumathandizira kuti mabuleki azithamanga kapena kumasulidwa koyendetsedwa ndi makina amakina.
(4) Laboratory & Kuyesa
Ma PRRs amapereka pulogalamu yosinthika ya bipolar DC, yabwino pa kafukufuku, kuyesa, ndi zoyeserera zomwe zimafuna polarity yosinthika.

Zosintha zosinthira polarity zikukhala zofunika kwambiri m'makampani ndi kafukufuku. Amaphatikiza kuwongolera kosinthika kwa polarity ndi kutembenuka kwamphamvu kwamphamvu, kuwapangitsa kukhala ofunikira pamagetsi ambiri amakono amagetsi. Pomwe ukadaulo wa zida ndi zowongolera zikuyenda bwino, ma PRR akuyembekezeka kupeza kugwiritsidwa ntchito mokulirapo.