1. Lub raj xa hluav taws xob raug puas los ntawm overvoltage
① Lub mains voltage yog siab dhau lawm, qhov ntws voltage muab rau lub hloov raj siab, thiab lub switching mem tes amplitude generated los ntawm cov ntws ntawm lub hloov raj ib txwm nce ntau. Kev tawg los ntawm tus nqi hluav taws xob tiv thaiv ntawm lub raj hloov DS ua rau lub raj hloov mus ua txhaum.
② Muaj teeb meem nrog qhov hluav taws xob stabilizing Circuit Court. Thaum cov zis hluav taws xob ntawm lub zog hloov hluav taws xob nce, qhov induced voltage generated los ntawm txhua winding ntawm lub switching transformer yog loj, thiab induced voltage generated los ntawm cov thawj winding yog superimposed nrog lub DC ua hauj lwm voltage tau los ntawm cov ntws D ntawm lub switching tube. . Yog tias tus nqi superposition no tshaj qhov ntsuas qhov ntsuas hluav taws xob ntawm lub raj hloov DS, uas yuav ua rau lub raj hloov pauv.
3. Muaj teeb meem nrog D-tiv thaiv Circuit Court (spike pulse absorption circuit) ntawm qhov ntws ntawm lub raj hloov, uas tsis tuaj yeem nqus tau qhov siab-amplitude ncov mem tes ntawm qhov ntws D ntawm lub raj hloov, uas ua rau lub siab tawg. ntawm qhov hloov lub raj dej.
④ Qhov tsis ua haujlwm ntawm lub tshuab lim dej loj (300V lim capacitor) ua rau muaj coob tus neeg siv hluav taws xob siab ntawm ob qho kawg, uas yuav ua rau muaj kev puas tsuaj rau qhov hloov pauv tom qab superimposing nrog cov hluav taws xob rov qab thaum lub sij hawm txiav tawm ntawm qhov hloov.
2. Hloov raj overcurrent puas
① Lub dab dej kub ntawm lub raj hloov me me dhau los yog tsis ruaj khov.
② Cov khoom siv hluav taws xob hloov hluav taws xob hnyav dhau, uas yuav ua rau lub sijhawm ua haujlwm ntawm lub raj hloov thiab ua rau lub raj hloov pauv. Feem ntau yog vim li cas yog qhov tso zis voltage rectification, tsis zoo lim Circuit Court lossis load Circuit Court luv Circuit Court, to thiab lwm yam txhaum.
③ Lub inter-tig luv luv Circuit Court ntawm switching transformer.
3. Lub zog siv hluav taws xob ntawm lub raj xa hluav taws xob yog qhov loj thiab puas
Muaj ob hom kev tig-raug poob thiab tig-tawm poob. Qhov loj tig-on poob yog vim qhov tseeb tias lub raj hloov pauv tsis tuaj yeem nkag mus rau lub xeev saturation los ntawm lub xeev amplifying nyob rau hauv lub sij hawm teev. Yog vim li cas rau qhov loj tig-on poob ntawm lub hloov raj yog vim tsis txaus excitation ntawm lub hloov raj. Qhov loj tig-tawm poob yog vim qhov tseeb tias lub raj hloov pauv tsis tuaj yeem nkag mus rau hauv lub xeev txiav tawm los ntawm lub xeev amplifying nyob rau hauv lub sijhawm teev. Yog vim li cas rau qhov loj tig-tawm poob ntawm lub raj hloov yog feem ntau yog vim lub distortion ntawm lub waveform ntawm lub rooj vag (base) electrode ntawm lub hloov raj.
4. Lub raj hloov nws tus kheej muaj teeb meem zoo
Qhov zoo ntawm cov khoom lag luam muaj hwj chim hloov raj sib txawv. Yog tias lub raj xa hluav taws xob muaj teeb meem zoo, kev puas tsuaj rov qab rau lub raj xa hluav taws xob yog qhov tsim nyog.
5. Kev hloov tsis raug ntawm lub raj hloov
Lub zog ntawm qhov hloov pauv ntawm lub zog hloov hluav taws xob feem ntau yog loj, thiab nws tsis tuaj yeem hloov nrog lub tshuab hluav taws xob uas tsis muaj zog thiab tsis tshua muaj zog, txwv tsis pub nws yuav yooj yim puas. Nws tseem tsis tuaj yeem siv BU508A, 2SD1403 thiab lwm yam triodes los hloov. Qhov kev sim pom tias txawm hais tias lub zog hluav taws xob tuaj yeem ua haujlwm tom qab hloov pauv, lub triode yuav overheat tom qab tau siv rau ob peb feeb, uas yuav ua rau muaj kev puas tsuaj rau lub raj hloov dua tshiab.
