Lub hauv paus ntsiab lus ua haujlwm ntawm DC tswj fais fab mov yog dab tsi?
Kev ua hauj lwm zaus ntawm DC stabilized fais fab mov tau nce los ntawm kaum ntawm kilohertz mus rau ntau pua txhiab tus hertz nyob rau hauv xyoo tas los no vim kev tshawb fawb thiab thev naus laus zis, txawm hais tias tseem muaj qhov sib txawv nrog cov teb chaws Western tsim. Kev tshawb fawb nyob rau hauv cheeb tsam no tau hloov mus rau topological txoj kev xav, lub hauv paus ntsiab lus ntawm kev khiav hauj lwm, qauv kev soj ntsuam, thiab lwm yam kev pab cuam ntawm high-frequency fais fab mov los ntawm ib tug xov tooj ntawm cov teb chaws tsim, coj los ntawm lub tebchaws United States. Yog li ntawd, DC ruaj khov fais fab mov kev txhim kho thiab daim ntawv thov tseem nyob deb.
Lub 220-volt industrial zaus kev sib txuas lus fais fab mov yog hloov mus rau hauv ib lub cuab yeej uas tas li xa DC voltage raws li txoj cai ua hauj lwm ntawm DC tswj fais fab mov. Nws yuav tsum tau stabilization, filtering, kho, thiab transformation.
Nov yog qhov link ua haujlwm li cas:
(1) Fais fab transformer: Qhov no transformer ua hauj lwm raws li ib tug step-down mus hloov lub hwj chim daim phiaj 220-volt kev sib txuas lus voltage mus rau hauv ib tug xav tau-tsav kev sib txuas lus voltage uas xa mus rau lub rectifier Circuit Court. Qhov thib ob voltage ntawm lub transformer yog dab tsi txiav txim siab nws transformation ratio.
(2) Rectifier thiab lim circuit: Lub rectifier Circuit Court pulses DC voltage los hloov qhov kev sib txuas lus voltage Ui. Lub lim hluav taws xob tsim tawm DC voltage U1 nrog tsawg dua ripple los ntawm kev lim tawm cov ripple loj dua. Cov kab hluav taws xob zoo rau rectifiers thiab cov ntxaij lim dej muaj xws li choj rectifiers thiab lim, puv-yoj rectifiers thiab lim, thiab lwm yam.
(3) Fais fab transformer: Qhov no transformer yog ib kauj ruam-down hom. Nws hloov lub 220V AC voltage los ntawm daim phiaj fais fab mus rau lub rectifier Circuit Court, qhov twg nws hloov mus rau hauv AC voltage haum rau cov kev xav tau. Lub transformer theem nrab voltage txiav txim siab transformer tus transformation piv.
(4) Circuit Court rau lub rectifier thiab lim: Qhov Circuit Court no hloov AC voltage Ui rau hauv DC voltage. Lub lim lim tom qab ntawd tshem tawm qhov loj ripple tivthaiv, ua rau cov zis ntawm DC voltage U1 nrog tsawg ripple. Choj rectification thiab filtering, tag nrho-yoj rectification thiab lim, thiab lwm yam zoo sib xws circuits yog nquag ua hauj lwm.
(5) Filter circuit: Ib qho kev sib piv DC voltage tuaj yeem tsim los ntawm kev lim tawm feem ntau ntawm cov khoom sib txuas lus tam sim no nyob rau hauv rectifier Circuit Court cov zis voltage. R1-C=(3 ~ 5)T/2 txaus siab los ntawm txhua lub lim capacitor C. Ntawm no, T yog lub sij hawm sib txuas lus input, thiab R1 yog lub rectifier lim circuit qhov sib npaug load kuj.
(6) Voltage stabilizing Circuit Court: Lub voj voog txoj haujlwm no yog los muab DC voltage uas ruaj khov thiab tsis sib xws rau cov kev hloov pauv hauv kev thauj khoom thiab qhov hluav taws xob ntawm kev sib txuas lus. Ob qho tib si ruaj khov thiab kho tau peb lub davhlau ya nyob twg voltage regulators yog hom kev sib xyaw ua ke voltage regulators. Tsuas yog cov khoom siv sab nraud uas xav tau rau lub voj voog yooj yim tshaj plaws yog lub potentiometer thiab lub teeb resistor.
